GREISINGER GIA 0420 WK-EX User manual

E24.0.13.6C-05 GIA 0420 WK - EX Connection and operating manual page: 1 of 6
GREISINGER electronic GmbH Hans-Sachs-Straße 26 D-93128 Regenstauf Fax [phone]
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 funtioning. 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.
Connection and operating manual
GIA 0420 WK - EX
Version: 1.0 0081
Attention: When running electric devices parts of these devices will always be highly
energised. 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 an maintenance.
Warning:
Do not use these product as safety or emergency stop devices, or in any other appli-
cation 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.

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GREISINGER electronic GmbH Hans-Sachs-Straße 26 D-93128 Regenstauf Fax [phone]
Terminal assignment:
The connectio have no polarity
Electric connection
Connection: 2-wire cable.
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 !!
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.

E24.0.13.6C-05 GIA 0420 WK - EX Connection and operating manual page: 3 of 6
GREISINGER electronic GmbH Hans-Sachs-Straße 26 D-93128 Regenstauf Fax [phone]
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 03ATEX 0135
Housing: ABS. Front screen made of polycarbonat.
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.

E24.0.13.6C-05 GIA 0420 WK - EX Connection and operating manual page: 4 of 6
GREISINGER electronic GmbH Hans-Sachs-Straße 26 D-93128 Regenstauf Fax [phone]
Configuration
Please note: measuring current should be at least 4 mA during configuration!
1. 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.
2. 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.
3. 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.
4. 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".
5. 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.
button1button2 button3

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GREISINGER electronic GmbH Hans-Sachs-Straße 26 D-93128 Regenstauf Fax [phone]

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GREISINGER electronic GmbH Hans-Sachs-Straße 26 D-93128 Regenstauf Fax [phone]