GREISINGER GIA 0420 WK EX Vietnam Ghm Measurement Instruction Manual

: June 17, 2024
: GREISINGER

Table of Contents

GREISINGER GIA 0420 WK EX Vietnam Ghm Measurement
Product Information
Product Usage Instructions
Introduction
Safety advice
Electric connection
Technical Specification
Fault codes
Configuration
EC – Declaration of Conformity
References
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GREISINGER GIA 0420 WK EX Vietnam Ghm Measurement

Product Information

Specifications

Input signal: max. allowed input current
Reverse voltage protection
Voltage load
Display
Display range
Maximum display value
Minimum display value
Decimal point
Measuring accuracy
Temperature drift
Measuring interval
Filter
Nominal temperature
Ambient temperature
Relative atmospheric humidity
Electromagnetic compatibility

Product Usage Instructions

Safety Advice
In order to ensure the safety of the operator and avoid any risks, please observe the following points:

Immediately switch off the device in case of visible damage or obvious malfunctions.
Always disconnect the voltage source and device before opening it up.
The entire device and its connection must be fingerproof after installation.
Observe standard regulations for operation and safety for electrical, light, and heavy current equipment.
Pay particular attention to national safety regulations, such as VDE 0100.
Consider the contents of the EC-Type-Examination Certificate and the regulations referring to the use of electrical equipment for hazardous areas.
When connecting the GIA0420 to other devices, ensure thorough interconnection design to avoid undesired voltage potentials.
Any changes or repair of the device are not allowed. Please return the device to the manufacturer for repair or maintenance.

Attention: When running electric devices, parts of these devices will always be highly energized. 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, connection, as well as proper operation and maintenance.

Warning: Do not use this product as safety or emergency stop devices, 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, serious injury, and material damage.

Electric Connection
The electric connection for this device should be done by trained and skilled personnel. The following details should be taken into consideration:

Connection: 2-wire cable.
Supply voltage: The device takes power directly from measuring current.
Terminal assignment: The connections have no polarity.

Note: Wrong connection may lead to the destruction of the display device, in which case we cannot assume any warranty. Please ensure that the maximum input current rating of 40mA is not exceeded under any circumstances.

Disposal Instruction
The device must not be disposed of in the unsorted municipal waste. To dispose of the device, send it directly to us (sufficiently stamped). We will dispose of the device appropriately and environmentally sound.

FAQ (Frequently Asked Questions)

Q: Can I repair or make changes to the device myself?
A: No, any changes or repair of the device are not allowed. Please return the device to the manufacturer for repair or maintenance.
Q: Can I use this product as a safety or emergency stop device?
A: No, this product should not be used as a safety or emergency stop device, or in any other application where failure of the product could result in personal injury or material damage.
Q: What should I do if I observe visible damage or obvious malfunctions?
A: Immediately switch off the device and contact the manufacturer for further instructions.

Introduction

The GIA0420WK is a microprocessor-controlled display device for 4 to 20 mA standard signal that can be universally applied. It does not require its own auxiliary voltage source but can be supplied directly from the measuring current. The measuring value is displayed on a 4-digit LCD display with the max. display area ranging from -1999 to +9999 digits.
The GIA0420WK is designed for the connection of any measuring transducers (with a 4 to 20 mA output). The operating range of the display device can be directly adjusted to the transmitter without any accessories being required by simply entering the maximum and minimum measuring range limits as well as the decimal point position.
Parameter and limit values are entered via three keys which are accessible after removal of the cover. All programmable parameters of the GIA0420WK are saved in an EEPROM; in case of a current failure they will remain there for at least 10 years. The GIA0420WK is equipped with a self-diagnosis system continuously monitoring the essential parts of the device for their perfect functioning. Both the self-diagnosis and the monitoring system for the measuring sensor for “sensor damage” and “short circuit in sensor” and/or values exceeding or falling below permissible limits ensure maximum operational reliability of the device. Prior to delivery the GIA0420WK will be tested and completely calibrated.
However, prior to you starting your operation make sure to configurate the device for your application. Please also refer to chapter “Configuration”.

Safety advice

In order to exclude any risk whatsoever for the operator the following points have to be observed:

a) Immediately switch off the device in case of visible damage or obvious malfunctions.
b) Make it a rule to always disconnect voltage source and device before opening it up. The entire device and its connection have to be fingerproof after installation.
c) Standard regulations for operation and safety for electrical, light and heavy current equipment have to be observed, with particular attention having to be paid to national safety regulations (e.g. VDE 0100).
d) Consider the contents of the EC-Type-Examination Certificate and the regulations refering the use of electrical equipment for hazardous areas (e.g. VDE 0165).
e) When connecting a GIA0420 to other devices (e.g. PC) the interconnection has to be designed most thoroughly as internal connections in third-party devices (e.g. connection GND with protective earth) may lead to undesired voltage potentials.
f) Any changes or repair of the device is not allowed. Please return device to manufacturer for repair or maintenance.

Attention: When running electric devices parts of these devices will always be highly energised. Unless the warnings are observed serious personal injuries or property damage 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 an maintenance.

Warning: Do not use these product as safety or emergency stop devices, 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.

Electric connection

Supply voltage: device takes power directly from measuring current Electric connection and commissioning of the device must be carried out by trained and skilled personnel.
Wrong connection may lead to the destruction of the display device, in which case we cannot assume any warranty. !! Mind the maximum input current rating of 40mA under any circumstances !!

Terminal assignment:
The connectio have no polarity GREISINGER-GIA-0420-WK-EX-Vietnam-Ghm-
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Disposal instruction
The device must not be disposed in the unsorted municipal waste! Send the device directly to us (sufficiently stamped), if it should be disposed.
We will dispose the device appropriate and environmentally sound.

Technical Specification

Input signal: 4 … 20 mA (2-wire)
max. allowed input current: 40 mA
Reverse voltage protection: polarized installation
Voltage load: approx. 3 V
Display: 10 mm high LCD display
Display range: starting and end value freely selectable
Maximum display value: 9999 digits
Minimum display value: -1999 digits
Decimal point: any position
Measuring accuracy: 0.2% ± 1 digit
Temperature drift: 100 ppm / °C
Measuring interval: approx. 5 measurements/sec.
Filter: 3 stages can be switched on
Nominal temperature: 25 °C
Ambient temperature: 0 to 50 °C
Relative atmospheric humidity: 0 to 80 %RH (non-condensing)
Electromagnetic compatibility: In accordance with EN61326
additional error: < 1% (within the range of 140 – 170MHz: < 2.5%)
Ex protection: II 2 G EEx ib IIC T4 according to EC-Type-Examination Certificate: ZELM 03 ATEX 0135
Housing: ABS. Front screen made of polycarbonate. 48.5 x 48.5 x 35.5 mm (L x W x D)
Connection: 2-wire connection cable, lenght approx. 2 m, no polarity
IP rating: front side IP65

Fault codes

In case of unacceptable conditions in the system a fault code will be displayed.

Fault codes have been defined as follows:

FE 1: Measuring range has been exceeded
This fault code indicates that the measuring range of the A/D converter has been exceeded.
- Potential fault cause: transmitter damaged short-circuit in transmitter connection GIA0420WK not/incorrectly configurated
- Remedies: FE 1 will be reset as soon as the measuring values are back within their permissible range. Please check your transmitter and transmitter connecting cables.
FE 2: Measuring values have fallen below permissible range
This fault code indicates that the measuring values of the A/D converter have fallen below the permissible range.
- Potential fault cause: transmitter damaged transmitter connection interrupted GIA0420WK not/incorrectly configurated
- Remedies: FE 2 will be reset as soon as the measuring values are back within their permissible range. Please check your transmitter and transmitter connecting cables.
FE 6: New Startup
This error message signals that the instrument is currently performing the startup sequence.
- possible cause: Input current to low
- Remedies: FE6 will be reset as soon as the instrument has finished its startup sequence. Check the loop current.

Configuration

Please note: measuring current should be at least 4 mA during configuration!

Press button 1, “dP” (decimal point) will be displayed. Select decimal point position desired using buttons 2 and 3. Acknowledge decimal point position by pressing button 1. “dP” will be displayed again.
Press button 1 once again, “An 4” (display for 4mA) will be displayed. Use buttons 2 and 3 to set value to be displayed on the GIA0420WK for an input signal of 4mA. Buttons 2 and 3 are equipped with a scrolling function, i.e. the value will be increased respectively decreased by 1 digit when button 2 respectively button 3 is pressed briefly (no more than 1 s). When pressing these buttons for a longer time (over 1 s) the values will start „scrolling“ upwards respectively downwards with the scrolling speed being increased after approx. 6s. Acknowledge value displayed by pressing button 1. “An 4” will be displayed again.
Switch over to the next parameter by pressing button 1 once again. “An20” will be displayed (display for 20mA). Use buttons 2 and 3 to set value to be displayed on the GIA0420WK for an input signal of 20mA. Acknowledge value displayed by pressing button 1. “An20” will be displayed again.
Press button 1 once again. “LI” (limit) will be displayed. Select measuring range limits desired using buttons 2 and 3.
- 0 = Values exceeding/falling below limits are acceptable. (FE1, FE2 displayed for hardware limits)
- 1 = Values exceeding/falling below limits are not acceptable. (FE1, FE2 displayed for area limits)
  Acknowledge selection made by pressing button 1. “LI” will be displayed again. For pressure measuring trnasducers always enter “LI 0”, for relative humidity, pH and similar measuring units always enter “LI 1”.
Press button 1 once again. “FILt” (filter) will be displayed. Select input filter 0, 1, 2 or 3 desired using buttons 2 and 3.
- 0 = no filter
- 1 = filter 1 active
- 2 = filter 2 active
- 3 = filter 1 and filter 2 active

Filter 1: prevents ”jumping” of the last figure, a phenomenon often found with digital displays and controllers. Make sure to always activate filter 2 if the display range exceeds 2000 digits. Additional display delay: approx. 1s
Filter 2: for filtering short pikes occurring when relays and contactors are switched. Make sure to always activate filter 1 if high loads are switched in the vicinity of the GIA0420WK, wires or sensor or if large pikes are to be expected.
Additional display delay: approx. 0.5s
Acknowledge selection made by pressing button 1. “FILt” will be displayed again.

The adjustment of the GIA0420WK to the transmitter is now completed. The GIA0420WK can be immediately switched over to display the current measuring value by pressing button 1. GREISINGER-GIA-0420-WK-EX-Vietnam-Ghm-
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