GREISINGER GIA 20 EB Universal Measurement and Control Unit Instruction Manual

GREISINGER GIA 20 EB Universal Measurement and Control Unit

Safety regulations

This device was designed and tested considering the safety regulations for electronic measuring devices.
Faultless operation and reliability in operation of the measuring device can only be assured if the General Safety Measures and the devices specific safety regulations mentioned in this users manual are considered.

1. Faultless operation and reliability in operation of the measuring device can only be assured if the device is used within the climatic conditions specified in the chapter Specifications
2. Always disconnect the device from its supply before opening it. Take care that nobody can touch any of the units contacts after installing the device.
3. Standard regulations for operation and safety for electrical, light and heavy current equipment have to be observed, with particular attention paid to the national safety regulations (e.g. VDE 0100).
4. When connecting the device to other devices (e.g. the PC) the interconnection has to be designed most thoroughly, as internal connections in third-party devices (e.g. connection of ground with protective earth) may lead to undesired voltage potentials.
5. The device must be switched off and must be marked against using again, in case of obvious malfunctions of the device which are e.g.:
   • Visible damage.
   • The device is not working as prescribed.
   • Storing the device under inappropriate conditions for longer time.
     When not sure, the device should be sent to the manufacturer for repairing or servicing.

ATTENTION: When running electric devices, parts of them will always be electrically live. Unless the warnings are observed serious personal injuries or damage to prop-erty may result. Skilled personnel only should be allowed to work with this device. For trouble-free and safe operation of the device please ensure professional transport, storage, installation and connection as well as proper operation and maintenance.

SKILLED PERSONNEL
Are persons familiar with installation, connection, commissioning and operation of the product and have professional qualification relating to their job.

For example:

• Training or instruction and qualifications to switch on or off, isolate, ground and mark electric circuits and devices or systems.
• Training or instruction according to the state.
• First-aid training.

ATTENTION:

• Do NOT use this product as safety or emergency stopping device, or in any other application where failure of the product could result in personal injury or material damage.
• Failure to comply with these instructions could result in death or serious injury and material damage.

Introduction

The GIA20EB is a microprocessor controlled displaying, monitoring and controlling device.
The device is supporting one universal interface for the connection of:

• Standard transmitter signals (0-20mA, 4-20mA, 0-50mV, 0-1V,
• RTD (for Pt100 and Pt1000),
• Thermocouple probes (type K, J, N, T and S)
• Frequency (TTL and switching contact)
  As well as rotation measuring, counting, etc. …

The device features two switching outputs, which can be configured as 2-point- controller, 3-point-controller, 2-point-controller with min./max. alarm,
common or individual min./max. alarm.
The state of the switching outputs is displayed with two LEDs beneath the front 4-digit LED-display.
The left LED displays the state of the 1st output, the right LED displays the state of the 2nd output.
Furthermore the device supports one EASYBUS-interface for communicating with a host computer that makes the device to a full functions EASYBUS-module.
When leaving our factory the GIA20EB has been subjected to various inspection tests and is completely calibrated.

Before the GIA20EB can be used, it has to be configured for the customers application.
Hint: In order to avoid undefined input states and unwanted or wrong switching processes, we suggest to connect the devices switching outputs after You have configured the device properly.

For configuring the GIA20EB please proceed as follows:

• Disassemble the red front plate (see sketch).
• Connect the device to its supply (see chapter 3 Electric connection).
• Switch on the supply voltage and wait until the device completed its built-in segment test .
• Adjust the device to the input signal required. Follow the instructions in chapter 4 Input configuration
• Follow the instructions given in chapter 5 Output and alarm configuration to configure the outputs of the GIA20EB.
• Reassemble the red front plate.
• Connect the device properly (see chapter 3 ‘Electric connection)

Electric connection

Wiring and commissioning of the device must be carried out by skilled personnel only.
In case of wrong wiring the GIA20EB may be destroyed. We can not assume any warranty in case of wrong wiring of the device.

Terminal assignment

Hint: The contacts 3, 5 and 7 are connected internally.

Connection data

| Between terminals| typical| limitations| notes
---|---|---|---|---
min.| max.| min.| max.
Supply voltage| 4 and 5| 9 V| 28 V| 0 V| 30 V|
Switching output 1 and 2| NPN| ****

1   and 3,

2   and 3

| | | | 30V,

I<1A

| Not short circuit protected
PNP| | | | ****

I<200mA

| Not short circuit protected
Input mA| ****

9 and 7

| 0 mA| 20 mA| 0 mA| 30 mA|
Input 0-1(2)V, Freq., …| 0 V| 3.3 V| -1 V| 30 V,

I<10mA

|
Input 0-50mV, TC, …| 8 and 7| 0 V| 3.3 V| -1 V| 10 V,

I<10mA

|
Input 0-10V| 6 and 7| 0 V| 10 V| -1 V| 20 V|

These limits must not be exceeded (not even for a short time)

Connecting an input signal

Please take care not to exceed the limitations of the inputs when connecting the device as this may lead to destruction of the device:

Connecting a Pt100 or Pt1000 RTD probe or a thermocouple probe

Connecting a 4-20mA transmitter in 2-wire-technology

Connecting a 0(4)-20mA transmitter in 3-wire-technology Connecting a 0-1V, 0-2V or 0-10V transmitter in 3-wire-technology

Connecting a 0-1/2/10V or 0-50mV transmitter in 4-wire-technology

Connecting a frequency- or rotation-signal
When measuring frequency or rotation three different input signals can be selected in the devices con-figuration.
There is the possibility of connecting an active signal (= TTL, …), a passive sensor-signal with NPN
(= NPN-output, push-button, relay, …) or PNP (= a PNP output switching to +Us, high-side push-button, …).
When configuring the device with a NPN switching output, a pull-up-resistor (~11kΩ referring to +3.3V) is connected internally. So when You use a device with NPN output You dont need to connect a resistor externally.
When configuring the device with a PNP switching output, a pull-down resistor (~11kΩ referring to GND) is connected internally. So when You use a device with PNP output You dont need a resistor externally.
It may be that your measuring-signal source needs the connection of an external resistor e.g. the pull-up-voltage of 3.3V is not enough for the signal source, or you want to measure in the top level frequency range. In this case the input signal has to be treated like an active signal and you have to configure the device as TTL.

Hint: when connecting the device You have to take care not to exceed the limits of the input voltage respective the input current of the frequency- input.

Hint: Rv = 3kΩ (with power supply voltage = 12V) or 7kΩ (with power supply voltage = 24V), device configuration: Sens = TTL

Hint: Rv2 = 600Ω, Rv1 = 1.8kΩ (with power supply voltage = 12V) or 4.2kΩ (with power supply voltage = 24V), device config.: Sens = TTL (Rv1 is a current limiting resistor and may be shorted if necessary. It should never exceed the mentioned value.)

Connecting a counter signal
When configuring the device you can select 3 different input signal modes similar to the connection of frequency- and rotation-signals. The connection of a sensor-signal for a counter-signal is the same used for the frequency- and rotation-signal.
Please use the wiring diagram given in chapter 3.3.6.
There is the possibility to reset the counter. When connecting contact 8 with GND (e.g. contact 7) the counter will be reset. You can do this manually (e.g. with the help of a push-button) or automatically (with one switching output of the device).

Hint: When connecting the device, take care not to exceed the limits of the input-voltage or the input-current of the frequency input.

Automatically resetting with the help of output 2 and additional resetting the device via push-button
Hint: Output 2 has to be configured as NPN output

Cascading of GIA20EB`s

Hint for GIA20EB:
Device 1  Input signal like impulse-transmitter,
Output 2 configured as NPN output
Device 2  Input-signal = switching-contact

Connecting switching outputs

The device features two switching outputs, with three different operating modes for each switching out-put, which are:
Low-Side: GND-switching NPN output (open-collector)
The switching output is connected to the negative rail of the supply voltage (connection 3 or 5) when active (switching output on).

High-Side : +Us-switching PNP output (open-collector)
The switching output is connected to the positive rail of the supply voltage (connection 4) when active (switching output on).

Push-Pull: The switching output is connected to the negative rail of the supply voltage (connection 3 or 5) when inactive. When the switching output is active, its connected to the positive rail of the supply voltage (connection 4).

In case of configuring one output as an alarm output, the output will be active in idle state (no alarm pre-sent). The output transistor opens or the push-pull output changes from +Us to Us when an alarm condition occurred.

Hint: In order to avoid unwanted or wrong switching processes, we suggest to connect the devices switching outputs after you have configured the devices switching outputs properly.

Please take care that you must not exceed the limits of the voltage and of the maximum current of the switching outputs (not even for a short period of time). Please take extreme care when switching inductive loads (like coils or relays, etc.) because of their high voltage peaks, protective measures to limit these peaks have to be taken.
When switching large capacitive loads a series resistor for current limitation needed, because of the high turn-on-current of high capacitive loads. The same applies to incandescent lamps, whose turn-on-current is also quite high due to their low cold resistance.

Connection with configured low-side-switching output (NPN output, switching to GND) Connection with configured high-side-switching output (PNP output, switching to +Us)

Hints:
Connections 3 and 5 are internally electrically connected.
When switching higher currents (> 50 mA) , the Uv connection should not be attached to the device (connection 3) but to the -Us connection of the external power supply unit.
When doing this, you get rid off ground displacement.

Connection with configured push-pull-switching output

Common wiring of several GIA20EB

Inputs and outputs are not electrically isolated. When interconnecting several GIA20EB`s you have to make sure that there is no potential displacement.
Make sure to observe the following points:

• When several GIA20EB`s are connected to the same power supply unit it is highly recommended to isolate the sensors, measuring transducers etc.
• When the sensors, measuring transducers etc. are electrically connected, and you cant manage to isolate them, you should use separate electrically isolated power supply units for each devices. Please note, that an electric connection may also be created via the medium to be measured (e.g. pH-electrodes and conductivity-electrodes in fluids).

Configuration of the device

Please note: When you are configuring the device and don’t press any button for more than 60 sec. the configuration of the device will be cancelled. The changes you made will not be saved and will be lost!

Hint: The buttons 2 and 3 are featured with a roll-function. When pressing the button once the value will be raised (button 2) by one or lowered (button 3) by one. When holding the button pressed for longer than 1 sec. the value starts counting up or down, the counting speed will be raised after a short period of time.
The device also features a overflow-function, when reaching the upper limit of the range, the device switches to the lower limit, vice versa.

Selecting an input signal type

• Turn the device on and wait until it completed its built-in segment test.

• Press button 2 for >2 sec. (e.g. with a small screw driver)
  The device displays InP (‘INPUT’).

• Use button 2 or button 3 (middle or right button) to select the input signal (see table below).

• Validate the selection with button 1 (the left button). The display will show InP again.

Depending on the selected input signal, additional configurations will be needed.

0 – 2 V
0 – 1 V
0 – 50 mV
Current signal| 4 – 20 mA| I| 4.2
0 – 20 mA
RTO| Pt100 (0.1°C)| t.rES| 4.3
Pt100 (1°C)
Pt1000
Thermocouples| NiCr-Ni           (Type K)| t.tc| 4.3
Pt10Rh-Pt         (Type S)
N CrS -N S      (Type N)
Fe-CuNi        (Type J)
Cu-CuNi        (Type T)
Frequency| TTL-signal| FrEq| 4.4
Switch-contact NPN, PNP
Rotation| TTL-signal| rPn| 4.5
Switch-contact NPN, PNP
Counter up| TTL-signal| Co.uP| 4.6
Switch-contact NPN, PNP
Counter down| TTL-signal| Co.dn| 4.6
Switch-contact NPN, PNP
Interface mode| Serial interface| SEri| 4.7

Please note: When changing the measuring mode InP, the input signal SEnS and the display unit Unit all settings will be changed to factory default. You have to set all the other settings. This also regards the settings for offset and slope-adjustment as well as the switching points!

Measuring voltage and current (0-50mV, 0-1V, 0-2V, 0-10V, 0-20mA,

4-20mA)

This chapter describes how you configure the GIA20EB for measuring voltage- or current-signals from an external transmitter. This instruction demands that you selected or as your desired input type like it is explained in chapter 4.1. The display has to show InP.

• Press Button 1. The display shows SEnS.
• Select the desired input signal using button 2 or button 3 (middle or right button).

• Validate the selected input signal by pressing button 1. The display shows SEnS again.
• Press button 1 again, The display will show dP (decimal point).
• Select the desired decimal point place by pressing button 2 or button 3.
• Validate the selected decimal position by pressing button 1. The display shows dP again.
• Press button 1 again, the display will show di.Lo (Display Low = low display value).
• Use button 2 and button 3 to select the desired value the device should display when a 0mA, 4mA or 0V input signal is attached.
• Validate the selected value by pressing button 1. The display shows di.Lo again.
• Press button 1 again, the display will show di.Hi (Display High = high display value).
• Use button 2 and button 3 to select the desired value the device should display when a 20mA, 50mV, 1V, 2V or 10V input signal is attached.
• Validate the selected value by pressing button 1. The display shows di.Hi again.
• Press button 1 again. The display will show Li(Limit = Measuring range limit).
• Use button 2 and button 3 to select the desired measuring range limit..

for about 10% of the selected input signal.
on. Er| Active, (displays error)| The measuring range limit is exactly bounded by the input signal. When exceeding or short falling the input signal the device will display an error message.
on. rG| Active, (d splays the selected l m t)| The measuring range limit is exactly bounded by the input signal. When exceeding or short falling the input signal the device will display the selected lower/upper display value. [e.g. humidity: when short falling or exceeding, the device will display 0% or 100%]

Hint: When exceeding the measuring range limit > 10% independently from the setting, the device will always display an error message (Err.1 or Err.2).

• Press button 1 to validate the selection, the display shows Li again.

• When pressing button 1 again, the display will show FiLt (Filter = digital filter).

• Use button 2 and button 3 to select the desired filter [in sec.].
  Selectable values: 0.01 … 2.00 sec.
  Explanation: this digital filter is a digital replica of a low pass filter.
  Note: when using the input signal 0-50mV a filter value of at least 0.2 is recommended

• Press button 1 to validate your value, the display shows FiLt again.

Now your device is adjusted to your signal source. Now the only thing left to do is to adjust the outputs of the device.

• When pressing button 1 again, the display shows outP. (output) For configuring the outputs of the GIA20EB, please follow the instructions given in chapter 4.8.

Measuring temperature (Pt100, Pt1000 RTD probes and thermocouple type J,

K, N, S or T)

This chapter describes how to configure the device for temperature measuring with the help of external platinum RTD probes or thermocouple probes. This instruction demands that you selected t.res or t.tc as your desired input type like it is explained in chapter 4.1. The device has to display InP.

• When pressing button 1 the display shows SEnS.
• Use button 2 or button 3 (middle or right button) to select your desired input signal.

°F)
Resolution:    0.1°
Pt1| Pt100 (3-wire)| Meas.-range: -200 … + 850 °C (-328 … + 1562 °F)
Resolution:    1°
1000| Pt1000 (2-wire)| Meas.-range: -200 … + 850 °C (-328 … + 1562 °F)
Resolution:    1°

Display| Input signal

(Thermocouples)

| Notes
---|---|---
NiCr| NiCr-Ni  (type K)| Meas.-range: -270 … +1350 °C (-454 … + 2462 °F)
S| Pt10Rh-Pt (type S)| Meas.-range:       -50 … +1750 °C (- 58 … + 3182 °F)
n| NiCrSi-NiSi (type N)| Meas.-range: -270 … +1300 °C (-454 … + 2372 °F)
J| Fe-CuNi (type J)| Meas.-range: -170 … + 950 °C (-274 … + 1742 °F)
T| Cu-CuNi (type T)| Meas.-range: -270 … + 400 °C (-454 … + 752 °F)

• Validate the selected input signal by pressing button 1. The display shows SEnS again.

• When pressing button 1 again, the display will show Unit(the unit you want to display).

• Use button 2 and button 3 to select whether you want to display °C or °F.

• Use button 1 to validate the selected unit, the display shows Unit again.

• Press button 1 to again, the display will be showing FiLt (Filter = digital filter).

• Use button 2 and button 3 for setting the desired filter-value [in sec.].
  Selectable values: 0.01 … 2.00 sec.
  Explanation: this digital filter is a digital replica of a low pass filter.

• Use button 1 to validate your selection, the display shows FiLt again.

Now your device is adjusted to your signal source. Now the only thing left to do is to adjust the outputs of the device.

• When pressing button 1 again, the display shows outP. (output)

For configuring the outputs of the GIA20EB, please follow the instructions shown in chapter 4.8.
For setting the offset and for setting the slope-adjustment, please follow the instructions given in chapter 6.

 Measuring of frequency (TTL, switching-contact)

This chapter describes how to configure the device for measuring frequency.
This instruction demands that you selected FrEq as your desired input type like it is explained in chapter 4.1. The device has to display InP.

• When pressing button 1 the display will show SEnS.
• Use button 2 or button 3 (middle or right button) to select the desired input signal.

switching contact (e.g. push button, relay) or Transmitter with NPN output.
A pull-up-resistor is internally connected.
Hint: when using push-buttons or relays, they must be bounce-free!
PnP| Switching contact, PNP| For direct connection of a transmitter with PNP output.

A pull-down-resistor is internally connected.

Hint: For the connection of a frequency-transmitter, please follow the instructions given in chapter 3.3.6
When connecting a switching-contact-transmitter with increased frequency range (= with external circuitry) you have to select TTL as your desired input signal.

• Validate your selected input signal by pressing button 1. The display shows SEnS again.
• When pressing button 1 again, the display will show Fr.Lo(frequency low = lower frequency range limit).
• Use button 2 and button 3 to select the lowest frequency that may occur when measuring.
• Press button 1 to validate your selection. The display shows Fr.Lo again.
• When pressing button 1 again, the display will show Fr.Hi (frequency high = upper frequency range limit).
• Use button 2 and button 3 to select the highest frequency that may occur when measuring.
• Press button 1 to validate your selection. The display shows Fr.Hi again.
• When pressing button 1 again, the display will show dP (decimal point).
• Use button 2 and button 3 to select the desired decimal point position.
• Press button 1 to validate your selection. The display shows dP again.
• When pressing button 1 again, the display will show di.Lo (display low = display at lower frequency range limit).
• Set the value the device shall display at the lower frequency range limit by pressing button 2 or button 3.
• Press button 1 to validate your selection. The display shows di.Lo again.
• When pressing button 1 again, the display will show di.Hi (display high = display at upper frequency range limit).
• Set the value the device shall display at the upper frequency range limit by pressing button 2 or button 3.
• Press button 1 to validate your selection. The display shows di.Hi again.
• When pressing button 1 again, the display will show Li (limit = measuring range limitation).
• Use button 2 and button 3 to select the desired measuring range limitation.

reach the maximum measuring range limit.
on.Er| active, (error indicator)| The measuring range is exactly bounded by the selected frequency-measuring-range-limit. When exceeding or short falling of the limit the device will display an error message.
on.rG| active, (frequency range l m t)| The measuring range is exactly bounded by the selected frequency-measuring-range-limit. When exceeding or short falling of the limit the device will display the lower or upper display- range-limit. [e.g. for humidity: when short falling or exceeding the device will display 0% or 100%]

Hint: When exceeding the maximum range limit (10kHz) independently from the limit setting an error message will be displayed (Err.1).

• Press button 1 to validate your selection. The display shows Li again.

• When pressing button 1 again, the display will show FiLt(Filter = digital filter).

• Use button 2 and button 3 to select the desired filter value [in sec.].
  Usable values: 0.01 … 2.00 sec.
  Explanation: this digital filter is a digital replica of a low pass filter.

• Press button 1 to validate your selection. The display shows FiLt again.

Now your device is adjusted to your signal source. The only thing you left do is to adjust the outputs of the device.

• When pressing button 1 again, the display will show outP. (Output) For configuring the outputs of the GIA20EB, please follow the instructions shown in chapter 4.8.

Measuring of rotation speed (TTL, switching-contact)

This chapter describes how to configure the device for measuring rotation speed.
This instruction demands that you selected rPn as your desired input type like it is explained in chapter 4.1. The device has to display InP.

• When pressing button 1 the device will display SEnS.
• Use button 2 or button 3 (middle or right button) to select the desired input signal.

switching contact (e.g. push button, relay) or transmitter with NPN output.

A pull-up-resistor is internally connected.

Hint: when using push-buttons or relays, they must be bounce-free!

PnP| Switching contact, PNP| For direct connection of a transmitter with PNP output.

A pull-down-resistor is internally connected.

Hint: For the connection of a frequency-transmitter, please follow the instructions given in chapter 3.3.6
When connecting a switching-contact-transmitter with increased frequency range (= with external circuitry) you have to select TTL as your desired input signal.

• Press button 1 to validate your selected input signal. The display shows SEnS again.

• When pressing button 1 again, the display will show diu (divisor).

• Use button 2 and 3 to select your desired divisor.
  Set the divisor to the pulses per rotation the transmitter supplies.

• Press button 1 to validate your selection. The display shows diu again.

• When pressing button 1 again, the display will show dP (decimal point).

• Use button 2 and button 3 to select the desired decimal point position.
  Use the decimal point position to change the resolution of your measurement. The more the decimal point position is on the left, the finer the resolution will become. Please note that you lower the maximum value that can be displayed, either.
  Example: your engine runs with 50 rotations per minute.
  With no decimal point the device will display something like 49  50 51, the maximum value that can be displayed is 9999 rotations per minute.
  With the decimal point position on the left e.g. XX.XX the device will display something like 49.99  50.00  50.01, but the maximum value that can be displayed is 99.99 rotations per minute.

• Press button 1 to validate your selection. The display shows dP again.

Now your device is adjusted to your signal source. The only thing left to do is to adjust the outputs of the device.

• When pressing button 1 again, the display will show outP. (Output) .
  For configuring the outputs of the GIA20EB, please follow the instructions shown in chapter 4.8.

Up-/Downwards counter (TTL, switching-contact)

The upwards counter starts counting upwards from 0 according to its settings.
The downwards counter starts counting downwards from the upper value that had been selected.
Feature: The current value of the counter can be reset anytime by connecting pin 8 to GND (e.g. pin 7).
The counter starts from its beginning as you disconnect pin 8 and pin 7.
The current counter value wont be lost if the voltage supply is disconnected. After restarting the counter starts from this value.

This chapter describes how to configure the device as a counter.
This instruction demands that you selected Co.up or Co.dn as your desired input type like it is explained in chapter 4.1.The device has to display InP.

• When pressing button 1 the display will show SEnS.
• Use button 2 or button 3 (middle or right button) to select the desired input signal.

switching contact (e.g. push button, relay) or transmitter with NPN output.

A pull-up-resistor is internally connected.

Hint: when using push-buttons or relays, they must be bounce-free!

PnP| Switching contact, PNP| For direct connection of a transmitter with PNP output.

A pull-down-resistor is internally connected.

Hint: For connecting a frequency-transmitter, please follow the instructions given in chapter 3.3.7
When connecting a switching-contact-transmitter with increased frequency range (= with external circuit) you have to select TTL as your desired input signal.

• Press button 1 to validate your selected input signal. The display shows SenS again.
• When pressing button 1 again, the device will be displaying EdGE (signal edge).
• Use button 2 or button3 (middle or right button) to select the desired signal edge.

• Press button 1 to validate your selection, the display shows EdGE again.

• When pressing button 1 again, the display will show diu (divisor = pre-scaling factor).

• Use button 2 and button 3 to select the desired pre-scaling factor.
  The incoming pulses will be divided with the selected pre-scaling factor, after that they will be transmitted to the de-vice for further processing.
  By this factor you can adapt the device to your transmitter or select a pre- scaling factor for large values
  Example 1: Your flow rate transmitter supplies 165 pulses per liter. When setting a pre-scaling factor of 165 every 165th pulse (so 1 pulse per liter) will be used for further processing.
  Example 2: Your transmitter is supplying about 5 000 000 pulses during the measurement, which exceeds the limit of the GIA20EB. But when setting a pre-scaling factor of 1000 only every 1000th pulse is used for further processing. So you only got a value 5000 which wont exceed the limit of the GIA20EB.

• Press button 1 to validate your selection. The display shows diu again.

• Press button 1 again. The display shows Co.Hi (counter high = upper counting range limit).

• Use button 2 and button 3 to select the maximum pulse-count (after pre-scaling factor) for the counting process.
  Example: Your flow rate transmitter is supplying 1800 pulses per liter, you selected a pre-scaling factor of 100 and you are expecting a maximum flow rate of 300 litres during the measurement. With a pre-scaling factor of 100 selected, you will get 18 pulses per liter. With a maximum flow rate of 300 litres you will be getting a pulse count of 18

• 300 = 5400.

  • Press button 1 to validate your selection. The display shows Co.Hiagain.

  • When pressing button 1 again, the device will be displaying dP (decimal point).

  • Use button 2 and button 3 to select the desired decimal point position.

  • Press button 1 to validate your selected decimal point position. The display shows dP again.

  • Press button 1 again. The display shows di.Hi (display high = upper display range limit).

  • Use button 2 and button 3 to set the value to be displayed when the maximum pulse (setting of co.Hi) count is reached.
    Example: Your flow rate transmitter is supplying 1800 pulses per litre and you are expecting a maximum flow rate of 300 litres. You selected a pre-scaling factor of 100 and a counter range limit of 5400. When wanting a resolution of 0.1 litres shown in the display of the device you would have to set the decimal point position to —.- and a display range limit of 300.0.

  • Press button 1 to validate your selection. The display shows di.Hiagain.

  • Press button 1. The display will show Li (Limit = measuring range limit).

  • Use button 2 and button 3 to select the desired measuring range limit (counter range limit).

reach the maximum measuring range limit.
on.Er| active, (error indicator)| The measuring range is exactly bounded by the selected counter-range-limit. When exceeding or short falling of the limit the device will display an error message.
on.rG| active, (measuring range l m t)| The measuring range is exactly bounded by the selected counter-range-limit. When exceeding or short falling of the limit the device will display the upper counter-range-limit or 0

Hint:   The lower counter-range-limit (for configured downwards counter) is fixed to 0.

• Press button 1 to validate your selection. The display shows Li again.

Now your device is adjusted to your signal source. The only thing left to do is to adjust the outputs of the device.

• When pressing button 1 again, the display will show outP. (Output)
  For configuring the outputs of the GIA20EB, please follow the instructions shown in chapter 4.8.

Interface mode

When the device is in the interface mode it wont make any measurements by itself. The value shown in the devices display is sent via serial interface. But the switching and alarm functions of the displayed value are still available.
The EASYBUS-Address of the device needed for the communication can be set manually with the device itself or with the help of an EASYBUS-software (like EBx Konfig). Please note, when carrying out an EASYBUS-system-initialization the devices address will be reset automatically.
This chapter describes how to configure the device as an EASYBUS-display.
This instruction demands that you selected SEri as your desired input type like it is explained in chapter 4.1 The device has to display InP.

• When pressing button 1 again, the device will display Adr(address).
• Use button 2 and button 3 to select the desired address [0 … 239] of the device.
• Press button 1 to validate the selected device address. The display shows Adr again.

You dont need any further configuration but the outputs.

• When pressing button 1 again, the device will be displaying outP (output).
  For configuring the outputs please follow the instructions given in chapter 4.8.

Selection of the output function

• After configuration of the input (chapter 4.2  4.7) you have to select the output function. The display shows outP (output).
• Use button 2 and button 3 (middle or right button) to select the desired output-function.

—

| 2P| 5.1
3-point-controller| digital
2-point-controller| digital 2-point controller| P|

5.1

2-point-controller with Min-/Max-alarm| digital 2-point-

controller

|

Min-/Max-alarm

| 2P.AL|

5.2

Min-/Max-alarm, common| —| Min-/Max-alarm| AL.F1| 5.3
Min-/Max-alarm, individual| Max-alarm| Min-alarm| AL.F2| 5.3

• Press button 1 to validate the selected output function. The display shows outP again.
  Depending on your output function setting, it may be possible that one or more settings described below wont be available.

• When pressing button 1 again, the device will display 1.dEL (delay of output 1).

• Use button 2 and button 3 to set the desired value for the switching-delay of output 1. Hint: The selected value [0.01 … 2.00] will be in seconds.

• Press button 1 to validate the selection. The display shows 1.dEL again.

• When pressing button 1 again, the device will display 1.out (kind of output 1).

• Use button 2 or button 3 (middle or right button) to select the desired output function.

•  Press button 1 to validate the selection. The display shows “ 1.out“ again.
• When pressing button 1 again, the device will display “1.Err“ (preferred state of output 1).
• Use button 2 and button 3 (middle or right button) to set the desired initial state in case of an error.

of an error Push-Pull-output s low n case of an error
on| Active in case of an error| Low-/H gh-s de-sw tch s closed n case of an error Push-Pull-output s h gh n case of an error

• Press button 1 to validate the selection. The display shows 1.Err again.
• In case you selected a 3-point-controller you have to make the following settings similar to the settings you already made for output 1: 2.dEL (delay of output 2), 2.out (kind of output 2), 2.Err (preferred state of output 2).
• When pressing button 1 again, (only if you configured the device with min-/max-alarm) the device will be displaying A.out (kind of the alarm-output).
• Use button 2 or button 3 (middle or right button) to select the desired kind of the alarm-output.

NPN, open collector, switching GNO

| Switching output is closed (connected to GNO) as long there is no alarm- condition, and is opened if there is an alarm-condition.
PnP| High-Side

PNP, open collector, switching +Us

| Switching output is closed (is under voltage) as long there is no alarm- condition, and is opened if there is an alarm-condition.
Pu.Pu| Push-Pull| Switching output is high with no alarm- condition and changes to low if there is an alarm-condition.

Please Note:

The switching outputs are inverted when using them as alarm-outputs!
This means as long there is no alarm-condition, the switching output will be active! In case of an alarm-condition the output will become inactive!

Note: When using the output function min-/max-alarm, individual the setting for kind of alarm output is used for both alarm-outputs.

• Press button 1 to validate the selection. The display shows out again.

Depending on the selected output function you have to make the settings for switching and alarm points. See description in chapter switch points and alarm-boundaries for further information.

Hint:

The settings for the switching and alarm points can be made later in an extra menu (see chapter 5)

Switch points and alarm-boundaries

Please note : The settings of the switch points will be cancelled, when no button was pressed for more than 60 sec. changes you may have made already wont be saved and will be lost!
Please note : The settings of the switch points and alarm-boundaries will automatically be reset to factory default when any changes for the settings InP, SEnS or Unit had been made!

Hint:

The buttons 2 and 3 are featured with a roll-function. When pressing the button once the value will be raised (button 2) by one or lowered (button 3) by one. When holding the button pressed for longer than 1 sec. the value starts counting up or down, the counting speed will be raised after a short period of time.
The device also features an overflow-function, when reaching the upper limit the device switches to the lower limit, vice versa.

• When pressing button 1 for >2 sec. the menu to select the switch points and alarm-boundaries will be called.
• Depending on the configuration you have made in the output menu you will get different Display values. Please follow the specific chapter for further information.

Description| Function| Selected as output|

Go on in chapter

---|---|---|---
Output 1| Output 2
No output, device is used as displaying unit| —| —| no| No function call possible
2-point-controller| digital
2-point-controller| —| 2P| 5.1
3-point-controller| digital
2-point-controller| digital
2-point-controller| 3P| 5.1
2-point-controller with min-/max-alarm| digital

2-point-controller

| min-/max-alarm| 2P.AL| 5.2
min-/max-alarm, common| —| min-/max-alarm| AL.F1| 5.3
min-/max-alarm, individual| max-alarm| min-alarm| AL.F2| 5.3

Point-controller, 3-point-controller

This chapter describes how to configure the device as a 2-point-controller or 3-point-controller.
This instruction demands that you selected 2P or 3P as your desired output function like it is explained in chapter 4.8.

• Press button 1 (when not already done). The device will be displaying 1.on(turn-on-point of output 1).
• Use button 2 and button 3 to set the desired value, the devices output 1 should be turning on.
• Press button 1 to validate your selection. The display shows 1.on again.
• When pressing button 1 again, the device will be displaying 1.off. (turn-off-point of output 1)
• Use button 2 and button 3 to set the desired value, the devices output 1 should be turning off.
• Press button 1 to validate your selection. The display shows 1.offagain.

Example: You want to control the temperature of a heating coil, with a hysteresis of +2°C, to 120°C.

Therefore you will have to select the turn-on-point 1.on to 120°C and the turn-off-point to
122°C. When your heating coil temperature falls below 120°C it will be turned on. When the temperature rises above 122°C the heating coil will be turned off.
Note: Depending on the inertia of your heating coil an overshooting of the temperature may be possible.

When selected 2-point-controller‘you finished configuring your device. Press button 1 to switch over to dis-play the measuring value.
When selected 3-point-controller please follow the instructions given below.

• Press button 1 (when not already done). The device will be displaying 2.on (turn-on-point of output 2).
• Use button 2 and button 3 to set the desired value, the devices output 2 should be turning on.
• Press button 1 to validate your selection. The display shows 2.on again.
• When pressing button 1 again, the device will be displaying 2.off. (turn-off-point of output 2)
• Use button 2 and button 3 to set the desired value, the devices output 2 should be turning off.
• Press button 1 to validate your selection. The display shows 2.off again.

Now you finished configuring your device. Press button 1 to switch over to display the measuring value.

point-controller with alarm function

This chapter describes how to configure the device as a 2-point-controller with alarm function.
This instruction demands that you selected 2P.AL as your desired output function like it is explained in chapter 4.8.

• Press button 1 (when not already done). The device will be displaying 1.on (turn-on-point of output 1).
• Use button 2 and button 3 to set the desired value, the devices output 1 should be turning on.
• Press button 1 to validate your selection. The display shows 1.on again.
• When pressing button 1 again, the device will be displaying 1.off. (turn-off-point of output 1)
• Use button 2 and button 3 to set the desired value, the devices output 1 should be turning off.
• Press button 1 to validate your selection. The display shows 1.offagain.

Example: You want to control the temperature of a cooling chamber between 20°C and 22°C.

Therefore you will have to select 20°C for the turn-on-point 1 1.on and 22°C for the turn-off-point 1 1.off. When the temperature rises above 20°C the device turns its output 1 on, when falling below 22°C the device will turn its output 1 off .
Note: Depending on the inertia of your cooling circuit an overshooting of the temperature may be possible.

• When pressing button 1, the device will be displaying AL.Hi. (maximum alarm-value)

• Use button 2 and button 3 to set the desired value, the device should turn on its maximum-alarm.

• Press button 1 to validate your selection. The display shows AL.Hi again.

• When pressing button 1 again, the device will be displaying AL.Lo. (minimum alarm-value)

• Use button 2 and button 3 to set the desired value, the device should turn on its minimum-alarm

• Press button 1 to validate your selection. The display shows AL.Lo again.

• When pressing button 1 again, the device will be displaying A.dEL. (delay of the alarm-function)

• Use button 2 and button 3 to set the desired delay of the alarm-function.
  Note : The unit of the value to be set [0 .. 9999] is in seconds. The device will turn on the alarm after the minimum or maximum alarm value was active for the delay-time you have set.

• Press button 1 to validate the delay time. The display shows A.dEL again.

Example: You want to have an alarm monitoring for the cooling chamber mentioned above. The alarms should start when the temperature will be rising above 15°C or falling below 30°C.
Therefore you have to select 15°C for the maximum alarm-value Al.Hi and 30°C for the mini-mum alarm-value AL.Lo.
The alarm will be starting after the temperature rises above 15°C and stays above 15°C for the entered delay time or after it had been falling below 30°C and stays below 30°C for the entered delay time.

Please note that the alarm-outputs are inverted! This means, that the output will be active when there is no alarm!
Now you finished configuring your device. Press button 1 to switch over to display the measuring value.

Minimum/maximum-alarm (individual or common)

This chapter describes how to configure the devices alarm boundaries for min -/max-alarm-monitoring. This instruction demands that you selected AL.F1 or AL.F2 as your desired output function like it is explained in chapter 4.8.

• Press button 1 (when not already done) , the device will be displaying AL.Hi. (maximum alarm-value)

• Use button 2 and button 3 to set the desired value, the device should turn on its maximum-alarm.

• Press button 1 to validate your selection. The display shows AL.Hi again.

• When pressing button 1 again, the device will be displaying AL.Lo. (minimum alarm-value)

• Use button 2 and button 3 to set the desired value, the device should turn on its minimum-alarm

• When pressing button 1 again, the device will be displaying A.dEL. (delay of the alarm-function)

• Use button 2 and button 3 to set the desired delay of the alarm-function.
  Note: The unit of the value to be set [0 .. 9999] is in seconds. The device will turn on the alarm after the minimum or maximum alarm value was active for the delay-time you have set.

• Press button 1 to validate the delay time. The display shows A.dEL again.

Example: You want to have a temperature alarm-monitoring of a greenhouse. The alarm should start when the temperature rises above 50°C or falls below 15°C.
Therefore your settings will be 50°C for the maximum alarm-value AL.HI and 15°C for the mini-mum alarm-value AL.Lo.
The alarm will be starting after the temperature rises above 50°C and stays above 50°C for the entered delay time or after it had been falling below 15°C and stays below 15°C for the entered delay time.

Please note that the alarm-outputs are inverted! This means, that the output will be active when there is no alarm!
Now you finished configuring your device. Press button 1 to switch over to display the measuring value.

Offset- and slope-adjustment

The offset and slope-adjustment function can be used for compensating the tolerance of the used sensor,
and for vernier adjustment of the used transducer or transmitter.
Please note: The settings of the offset- / slope-adjustment will be cancelled, when no button was pressed for more than 60 sec. Changes you may have made already wont be saved and will be lost!
Please note: The settings of the offset- / slope-adjustment and alarm- boundaries will automatically be reset to factory default when any changes for the settings InP, SEnS or. Unit had been made!

Hint:

The buttons 2 and 3 are featured with a roll-function. When pressing the button once the value will be raised (button 2) by one or lowered (button 3) by one. When holding the button pressed for longer than 1 sec. the value starts counting up or down, the counting speed will be raised after a short period of time.
The device also features a overflow-function, when reaching the upper limit the device switches to the lower limit, vice versa.

• Turn on the device and wait after it finished its built-in segment test.

• Press button 3 > 2 sec. (e.g. with a small screwdriver).
  The device will be displaying OFFS(offset).

• Use button 2 and button 3 for setting the desired zero point offset-value.

The input of the offset will be in digit or °C/°F.
The value that had been set will be subtracted from the measured value. (see below for further information)

• Press button 1 to validate your selection. The display shows OFFS again.
• When pressing button 1 again, the device will be displaying SCAL. (scale = slope)
• Use button 2 and button 3 to select the desired slope-adjustment.
  The slope adjustment will be entered in %. The value displayed can be calculated like this:

Displayed value = (measured value  zero point offset) * (1 + slope adjustment [% / 100]).

Example: The setting is 2.00 => the slope has risen 2.00% => slope = 102%.

When measuring a value of 1000 (without slope-adjustment) the device would display 1020 (with slope adjustment of 102%)

• Press button 1 to validate the selection of the slope-adjustment. The display shows SCAL again.

Examples for offset- and slope-adjustment:
Example 1: Connecting a Pt1000-sensor (with an offset error depending on the cable-length of the sensor)
The device displays the following values (without offset- or slope- adjustment): 2°C at 0°C and 102°C at 100°C Therefore you calculated:

• zero point: 2
• slope: 20.02  0.08 = 19.94
• deviation: 0.06 (= target-slope  actual-slope = 20.00 – 19.94)

You have to set:

• offset = 0.08 (= zero point-deviation)
• scale = 0.30 (= deviation / actual-slope = 0.06 / 19.94 = 0.0030 = 0.30% )

Example 3: Connecting of a flow-rate-transducer
The device displays the following values (without offset- or slope- adjustment): 0.00 at 0.00 l/min and 16.17 at 16.00 l/min
Therefore you calculated:

• zero point: 0.00
• slope: 16.17  0.00 = 16.17
• deviation: – 0.17 (=target-slope actual slope = 16.00 – 16.17)

You have to set: offset = 0.00
scale = – 1.05 (= deviation / actual-slope = – 0.17 / 16.17 = – 0.0105 = – 1.05% )

Min-/max-value storage:

The device features a minimum/maximum-value storage. In this storage the highest and lowest measured value are saved.

Calling of the minimum-value press button 3 shortly the device will display Lo briefly, after that the min-value is displayed for about 2 sec

Calling of the maximum-value press button 2 shortly the device will display Hi briefly, after that the max-value is displayed for about 2 sec.

Erasing of the min/max values press button 2 and 3 for 2 sec. The device will display CLr briefly, after that the min/max-values are set to the current displayed value.

Serial interface:

The device features one EASYBUS-Interface. You can use the device as a full function EASYBUS-device. The serial interface allows the device to communicate with a host computer. Data polling and data transfer is done in master/slave mode, so the device will only send data on demand. Every device has a unique ID-number that makes exact identification of each device possible. With the help of a software (like EBxKonfig freeware version available via internet) you are able to reassign an address to the device.
Additional accessories needed for the interface mode:

• Level converter EASYBUS ! PC: e.g. EBW1, EBW64, EB2000MC

• Software for communication with the device
  EBS9M: 9-channel-software for displaying a measured value.

• EASYCONTROL: multi-channel software for real-time-recording and displaying measure-values of a device in ACCESS®-database-format.

• EASYBUS-DLL: EASYBUS-developer-package for developing own software. This package features a universal WINDOWS®-Library with documentation and program-examples. The DLL can be used in any usual programming language.

Error codes

When detecting an operating state which is not permissible, the device will display an error code The following error codes are defined:

Err.1: Exceeding of the measuring range
Indicates that the valid measuring range of the device has been exceeded. Possible causes:

• Input signal to high.
• Sensor broken (Pt100 and Pt1000).
• Sensor shorted (0(4)-20mA).
• Counter overflow.

Remedies:

• The error-message will be reset if the input signal is within the limits.
• Check sensor, transducer or transmitter.
• Check device configuration (e.g. input signal)
• Reset the counter.

Err.2: Values below the measuring range
Indicates that the values are below the valid measuring range of the device. Possible causes:

• Input signal is to low or negative.

• Current below 4mA.

• Sensor shorted (Pt100 and Pt1000).

• Sensor broken (4-20mA).

• Counter underflow.
  Remedies:

• The error-message will be reset if the input signal is within the limits.

• Check sensor, transducer or transmitter.

• Check device configuration (e.g. input signal)

• Reset the counter.

Err.3: Display range has been exceeded
Indicates that the valid display range (9999 digit) of the device has been exceeded. Possible causes:

• Incorrect scale.
• Counter overflow.

Remedies:

• The error-message will be reset if the display value is below 9999.
• Reset the counter.
• When happening frequently, check the scale-setting, maybe it was set too high and should be reduced.

Err.4: Values below display range
Indicates that display value is below the valid display range of the device (-1999 digit). Possible causes:

• Incorrect scale.
• Counter underflow.

Remedies:

• The error-message will be reset if the display value is above -1999.
• Reset the counter
• When happening frequently, check the scale-setting, maybe it was set too low and should be increased.

Err.7: System-error
The device features an integrated self-diagnostic-function which checks essential parts of the de-vice permanently. When detecting a failure, error- message Err.7 will be displayed.

Possible causes:

• Valid operating temperature range has been exceeded or is below the valid temperature range.
• Device defective.

Remedies:

• Stay within valid temperature range.
• Exchange the defective device.

Err.9: Sensor defective
The device features an integrated diagnostic-function for the connected sensor or transmitter.
When detecting a failure, error-message Err.9 will be displayed.

Possible causes:

• Sensor broken or sensor shorted (Pt100 or Pt1000).
• Sensor broken (thermo-elements).

Remedies:

• Check sensor or exchange defective sensor.

Er.11: Value could not be calculated
Indicates a measuring value, needed for calculation of the display value, is faulty or out of range.

Possible causes:

• Incorrect scale.

Remedies:

• Check settings and input signal.

Specification

Absolute maximum ratings:

| Connection between| Performance data| Limit values| Notes
---|---|---|---|---
min.| max.| min.| max.
Supply voltage| 4 and 5| 9 V| 28 V| 0 V| 30 V|
Switching output 1 and 2| NPN| 1  and 3,

2  and 3

| | | | 30V, I<1A| not short circuit protected
PNP| | | | I<200mA| not short circuit protected
Input mA| 9 and 7| 0 mA| 20 mA| 0 mA| 30 mA|
Input 0-1(2)V, Freq, …| 9 and 7| 0 V| 3.3 V| -1 V|  0 V,  10mA|
Input 0-50mV, TC, …| 8 and 7| 0 V| 3.3 V| -1 V| 10 V,

I<10mA

|
Input 0-10V| 6 and 7| 0 V| 10 V| -1 V| 20 V|

Absolute maximum ratings must not be exceeded (not even for a short period of time)!

Measuring inputs: Standard inputs for

max perm l ne res stance: 20 Ohm

Pt100 (1°C)| -200 … +850 °C
(-328 … +1562 °F)| 1 °C / °F| 3-wire-connection max perm l ne res stance: 20 Ohm
Pt1000| -200 … +850 °C

(-328 … +1562 °F)

| 1 °C / °F| 2- wire-connection
Thermocouple probes| NiCr-Ni (Type K)| -270 … +1350 °C

(-454 … +2462 °F)

| 1 °C / °F|
Pt10Rh-Pt (Type S)| -50 … +1750 °C

(-58 … +3182 °F)

| 1 °C / °F|
N CrS -N S (Type N)| -270 … +1300 °C

(-454 … +2372 °F)

| 1 °C / °F|
Fe-CuNi (Type J)| -170 … +950 °C

(-274 … +1742 °F)

| 1 °C / °F|
Cu-CuNi(Type T)| -270 … +400 °C

(-454 … +752 °F)

| 1 °C / °F|
Frequency| TTL-Signal| 0 Hz … 10 kHz| 0.001 Hz| signal low: 0.0 – 0.5 V

signal high: 2.7 – 24 V

Switching contact NPN| 0 Hz … 3 kHz| 0.001 Hz| An internal pull-up-resistor (~11 kDhm to

+3.3V) is connected automatically.

Switching contact PNP| 0 Hz … 1 kHz| 0.001 Hz| An internal pull-down-resistor (~11 kDhm to GND) is connected automatically.
Rotation| TTL-Signal, Switching contact NPN, PNP|

0 … 9999 rpm

|

0.001 rpm

| Prescal ng-factor (1-1000),

Pulse-frequency: max 600000 p /m n *

Up/Downwards- Counter| TTL-Signal,

Switching contact NPN, PNP

| 0 … 9999

w th prescal ng factor: 9 999 000

| | Pr-scal ng-factor (1-1000)

Pulse-frequency: max 10000 p /sec *

= with switching contact accordingly to frequency input lower values may occur

Display range: (voltage-, current and frequency-measurement)

• 1999 … 9999 Digit, initial value, terminal value and decimal point position arbitrary.
• Recommended range: < 2000 Digit

Accuracy: (at nominal temperature)

• Standard-signals: < 0.2% FS ±1Digit (from 0 – 50mV: < 0.3% FS ±1Digit)

• RTD: < 0.5% FS ±1Digit

• Thermocouples: < 0.3% FS ±1Digit (from Type S: < 0.5% FS ±1Digit)

• Frequency: < 0.2% FS ±1Digit

• Point of comparison: ±1°C ±1Digit (at nominal temperature)

• Temperature drift: < 0.01% FS / K (from Pt100 – 0.1°C: < 0.015% FS / K)

• Measuring freq.: approx. 100 measures / sec. (standard-signal) or approx. 4 measures / sec. (temperature-measurement) or approx. 4 measures / sec. (frequency, rpm at f > 4 Hz) or accordingly f (at f < 4 Hz)

• Outputs: 2 switching outputs, not electrically isolated,

• Output type: selectable: low-side, high-side or push-pull

• Connection specs.: low-side: 28V/1A; high-side: Us/200mA

• Response Time: < 20 msec. for standard signals < 0.3 sec. for temperature, frequency (f > 4 Hz)

• Output-functions: 2-point, 3-point, 2-point with alarm, min-/max-alarm common or individual.

• Switching points: arbitrary

• Switching delay: arbitrary: 0.01 … 2.00 sec.

• Alarm delay: arbitrary: 1 … 9999 sec.

• Display: approx. 10 mm height, 4-digit red LED-display

• Handling: 3 push-buttons, accessible after dismounting of the front panel or via interface

• Interface: EASYBUS-interface, electrically isolated

• Bus load: 1 EASYBUS standard load

• Power supply: 9 to 28 V DC

• Current drain: max. 30 mA (without switching output)

• Nominal temp.: 25°C

• Operating ambient: -20 to +50°C

• Relative Humidity: 0 to 80% RH (non condensing)

• Storing temp.: -30 to +70°C

• Enclosure: main housing: fibre-glass-reinforced noryl front view-panel: polycarbonate

• Dimensions: 24 x 48 mm (front-panel admeasurement).

• Installation depth: approx. 65 mm (incl. Screw-in/plug-in clamps)

• Panel Mounting: via VA-spring-clip.

• Panel thickness: available from 1 to approx. 10 mm.

• Panel cut-out: 21.7+0.5 x 45+0.5 mm (H x W)

• Connection: via screw-in/plug-in clamps: 2-pol. for the interface and 9-pol for the other connections

• Conductor cross-selection from 0.14 to 1.5 mm².

• Protection class: front IP54, with optional  O-rings IP65

• EMC: EN61326 +A1 +A2 (appendix A, class B), additional errors: < 1% FS

When connecting long leads adequate measures against voltage surges have to be taken.

Disposal notes

This device must not be disposed as residual waste.
To dispose this device, please send it directly to us (adequately stamped). We will dispose it appropriately and environmentally friendly.

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