GREISINGER GIA 20 EB PK Universal Measurement and Control Unit Instruction Manual

GREISINGER GIA 20 EB PK Universal Measurement and Control Unit Instruction Manual

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 unites 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 property 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 GIA 20 EB / PK 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, 0-2V and 0-10V )
  

• Resistance sensors

• Frequency (TTL and switching contact)

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 Leis 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 Earbuds-interface so that the device can communicate with a host computer via an interface converter and makes the device to a full functions Earbuds-module. When leaving our factory the GIA20EB / PK has been subjected to various inspection tests and is completely calibrated.

Before the GIA20EB / PK 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 device 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 pro- tested
PNP| | | | I<200mA| Not short circuit pro- tested
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 resistance sensor

• Resistance measurement (2-wire)

• Resistance measurement (3-wire)
  

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

• with individual transmitter supply

• without individual transmitter supply
  

Connecting a 0(4)-20mA transmitter in 3-wire-technology

• with individual transmitter supply
  

• without individual transmitter supply
  

Connecting a 0-1V, 0-2V or 0-10V transmitter in 3-wire-technology

• with individual transmitter supply
  

• without individual transmitter supply.
  

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

• with individual transmitter supply
  

• without individual transmitter supply
  
  ( Note : Sig- and knur of the Transmitter must be the same potential)

Connecting a frequency- or rotation-signal

When measuring frequency or rotation three different input signals can be selected in the devices configuration. 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 done 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 done 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 Nettle.

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.

• Connection of a transducer (with separate power supply)
  
  with TTL or PNP output and external resistor for current limitation.

• Connection of a transducer (without separate power supply)
  
  with TTL or PNP output and external resistor for current limitation.

• Connection of a transducer (with separate power supply) with NPN output.
  

• Connection of a transducer (without separate power supply) with NPN output.
  

• Connection of a transducer (with separate power supply) with NPN output and necessary external resistor
  

• Connection of a transducer (without separate power supply) with NPN output and necessary external resistor
  
  Hint: Rv = 3kΩ (with power supply voltage = 12V) or 7kΩ (with power supply voltage = 24V), device configuration: Sens = TTL

• Connecting of a transducer (with individual power supply) PNP output with external resistor wiring.
  

• Connecting of a transducer (without individual power supply) PNP output and external resistor wiring.
  
  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.

• manually reset the device with the help of a push-button.
  

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

Connecting switching outputs

The device features two switching outputs, with three different operating modes for each switching output, 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: Imus- 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 present). The output transistor opens or the push-pull output changes from +Us to muss 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 of consumer loads (relay and lamp) (without individual supply voltage)
  

• Connection of consumer loads (relay and lamp) (with individual supply voltage)
  

Connection with configured high-side-switching output (PNP output,

switching to +Us)

• Connection of consumer loads (relay and lamp)
  

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

• Connection of a semiconductor-relay
  

Common wiring of several devices

Inputs and outputs are not electrically isolated. When interconnecting several devices you have to make sure that there is no potential displacement.

Make sure to observe the following points:

• When several devices 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 canít 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

Note: Except for the configuration of the output functions this device can only be adjusted via the provided/downloaded software.

Installing the software

The setup can only be started if the dot NET 2.0 is already installed.

1. Execute the GIA 20 EB PK Configurator Setup.exe to install the software.
2. Select in Setup-Language our desired setting and confirm with OK
3. The Setup-Assistant appears helping you to install the software.
   Follow the instructions of the Setup-Assistant.

Operating the software

After the software has started:

1. Select Configuration in the menu bar and choose your COM Port to which the interface converter is connected .
   

2. Enter the address of the GIA 20 EB / PK to the (address at delivery is 0) into the input field.

3. After the successful connection to the GIA 20 EB / PK all adjustment possibilities are available.
   
   Under the tab Configuration the adjustments for the input and display are monitored.
   The configuration can be changed via choice boxes and input fields.
   Under the tab Characteristic the current characteristic of the device can be loaded via the Import button. The characteristic can be modified by clicking on the  desired field and entering the responding value. Clicking on the Delete button will delete the complete displayed table. This is a reasonable function if you want to design a new characteristic.
   You can add a new row or delete a single row with the + and ñ buttons.
   The entered characteristic is sent to the device if the Program button is clicked.

4. Under the tab Output Settings all output functions of the device can be configurated.
   

5. To complete the configuration the button Upload has to be clicked. All adjustments are transferred and the GIA 20 EB / PK restarts.

6. The current configuration can be saved for future usage under File in the menu bar.

Manual selection of the output function

• Press button 2 for about 5 seconds to get to the menu for the manual selection of the output function. The display shows  out (output).

• Use button 2 and button 3 (middle or right button) to select the desired output-function
  Description| Function| To select as output| See chapter
  ---|---|---|---
  Output 1| Output 2
  No output, device is used as display unit| —| —| no| —
  2-point-controller| digital2-point-control- ler| —| 2P| 5.1
  3-point-controller| digital2-point-con- troller| 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

• Press button 1 to validate the selected output function. The display shows ìoutPì again.
  Depending on your output function setting, it may be possible that one or more settings described below
  won’t be available.

• When pressing button 1 again, the device will display ì1.dELì (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 ì1.dELì again.

• When pressing button 1 again, the device will display ì1.outì (kind of output 1).

• Use button 2 or button 3 (middle or right button) to select the desired output function.
  Display| Kind of output| Note
  ---|---|---
  nPn| Low-Side NPN, open collector, switching GND|
  PnP| High-Side PNP, open collector, switching +Us|
  Pu. Pu| Push-Pull|

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

• When pressing button 1 again, the device will display ì1.Errì (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.
  Display| Preferred state of the output| Note
  ---|---|---
  off| Inactive in case of an error| Low-/High-side-switch is opened in case of an error. Push-Pull-output is low in case of an error.
  on| Active in case of an error| Low-/High-side-switch is closed in case of an error. Push-Pull-output is high in case of an error.

• Press button 1 to validate the selection. The display shows ì1.Errì 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: ì2.dELì (delay of output 2), ì2.outì (kind of output 2), ì2.Errì (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 ìA.outì (kind of the alarm-output).

• Use button 2 or button 3 (middle or right button) to select the desired kind of the alarm-output.

Display

| Kind of the alarm-output| Note
---|---|---
nPn| Low-Side

NPN, open collector, switching GND

|

Switching output is closed (connected to GND) 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 mien-/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 ì A. out again.
  Depending on the selected output function you have to make the settings for switching and alarm points. See description in chapter Ñswitchpoints 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)

Ñswitchpoints and alarm-boundaries

Please note: The settings of the Ñswitchpoints will be cancelled, when no button was pressed for more than 60 sec. changes you may have made already won’t be saved and will be lost!
Hint: The buttons 2 and 3 are featured with a ëroll-functionë. 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 Ñswitchpoints 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| digital2-point-controller| —| 2P| 5.1
  3-point-controller| digital2-point-controller| digital2-point-controller| 3P| 5.1
  2-point-controller with min-/max-alarm| digital2-point-controller| min-/max- alarm| 2P.AL| 5.2
  min-/max-alarm, common| —| min-/max-alarm| AL.F1| 5.3
  min-/max-alarm, individ-ual| 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 ì2Pì or ì3Pì 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 ì1.onì (turn-on-point of output 1).

• Use button 2 and button 3 to set the desired value, the deviceís output 1 should be turning on.

• Press button 1 to validate your selection. The display shows ì1.onì again.

• When pressing button 1 again, the device will be displaying ì1.offì. (turn-off-point of output 1)

• Use button 2 and button 3 to set the desired value, the deviceís output 1 should be turning off.

• Press button 1 to validate your selection. The display shows ì1.offìagain.
  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 ì1.onì to 120°C and the turn-off-point to ì122°Cì. 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 ë2-point-controllerë you finished configuring your device. Press button 1 to switch over to display the measuring value.
  When selected ë3-point-controllerë please follow the instructions given below.

• Press button 1 (when not already done). The device will be displaying ì2.onì (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 ì2.onì again.

• When pressing button 1 again, the device will be displaying ì2.offì. (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 ì2.offìagain.
  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 ì2P.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 ì1.onì (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 ì1.onì again.

• When pressing button 1 again, the device will be displaying ì1.offì. (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 ì1.offìagain.
  Example: You want to control the temperature of a cooling chamber between ñ20°C and ñ22°C.
  Therefore you will have to select ñ20°C for the turn-on-point 1 ì1.onì and ñ22°C for the turn-offprint 1 ì1.offì. When the temperature rises above ñ20°C the device turns its output 1 on, when falling below ñ22°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 ìAl.Hiì. (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 ìAl.Hiì again.

• When pressing button 1 again, the device will be displaying ìAL.Loì. (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 ìAL.Loì 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. dell 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 ñ15°C or falling below ñ30°C. Therefore you have to select ñ15°C for the maximum alarm-value Al. Hi and ñ30°C for the minimum alarm-value AL. Lo.
The alarm will be starting after the temperature rises above ñ15°C and stays above ñ15°C for the entered delay time or after it had been falling below ñ30°C and stays below ñ30°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 ìAL.F1ì or ìAL.F2ì 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 ìAl.Hiì. (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 ìAL.Hiì again.

• When pressing button 1 again, the device will be displaying ìAL.Loì. (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 ìAL.Loì again.

• When pressing button 1 again, the device will be displaying ìA.dELì. (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 ìA.dELì 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 ìAL.HIì and 15°C for the minimum alarm-value ìAL.Loì.
  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 won’t be saved and will be lost!

Hint: The buttons 2 and 3 are featured with a ëroll-functionë. 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 ëoverflow-functionë, 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.

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

• When pressing button 1 again, the device will be displaying scaly. (scale = slope)

• Use button 2 and button 3 to select the desired slope-adjustment.

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

Now you finished the offset and slope adjustment of your device. Press button 1 to switch over to display the measuring value.

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 ìLoì 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 ìCLrì 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 I number that makes exact identification of each device possible. With the help of a software (like EBxKonfig ñ 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 ACCESSÆ-database-format.
EASYBUS-DLL: EASYBUS-developer-package for developing own software. This package features a universal WINDOWSÆ-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 (resistance).
• 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 (resistance).
• 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

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 device 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
• 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| 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|

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

signal high: 2.7 – 24 V
Switching contact NPN| 0 Hz … 3 kHz| 0.001 Hz| An internal pull-up-resistor (~11 kOhm to +3.3V) is connected automatically.
Switching contact PNP| 0 Hz … 1 kHz| 0.001 Hz| An internal pull-down- resistor (~11 kOhm to GND) is connected automatically.
Up/Downwards- Counter| TTL-Signal, Switching contact NPN, PNP| 0 … 9999with pre-scaling: 9 999 000| | Pre-scaling-factor (1-1000)Pulse-frequency: max. 10000 p./sec. *

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 ñ 50mV: < 0.3% FS ±1Digit)
Resistance: < 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 RTD ñ 0.1 Ohm: < 0.015% FS / K)
Measuring freq.: approx. 100 measures / sec. (standard-signal) or
approx. 4 measures / sec. (resistance) 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 wastey.
To dispose this device, please send it directly to us (adequately stamped). We will dispose it appropriately and environmentally friendly.

References

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