GREISINGER GIA 0420 WK User manual

E41.0.X1.6C-06
GHM GROUP - Greisinger
GHM Messtechnik GmbH | Hans-Sachs-Str. 26 | 93128 Regenstauf | GERMANY
Tel.: [phone] | [e-mail] | www.greisinger.de
Installation and operating manual
Universal display for
4-20 mA - transmitter
ab Version 1.0
GIA 0420 VO(T)
GIA 0420 WK(T)
GIA 0420 M12(T)

Please read these instructions carefully before use!
WEEE-Reg.-Nr. DE 93889386

Please consider the safety instructions!

Please keep for future reference!
GIA 0420 WKT
GIA 0420 VO
GIA 0420 M12T

E41.0.X1.6C-06 Installation and Operating Manual GIA 0420 … page 2 of 18
Index
1GENERAL NOTE ......................................................................................................................................................3
2DESIGNATED USE...................................................................................................................................................3
2.1 INTENDED USE......................................................................................................................................................3
2.2 SAFETY SIGNS AND SYMBOLS.................................................................................................................................3
2.3 SKILLED PERSONNEL.............................................................................................................................................3
2.4 SAFETY GUIDELINES..............................................................................................................................................4
3PRODUCT DESCRIPTION........................................................................................................................................5
3.1 SCOPE OF SUPPLY ................................................................................................................................................5
3.2 DESIGN TYPES......................................................................................................................................................5
3.3 FUNCTION DESCRIPTION........................................................................................................................................5
3.4 IDENTIFICATION.....................................................................................................................................................6
3.5 DISPLAY AND OPERATING ELEMENTS......................................................................................................................6
4ELECTRIC CONNECTION........................................................................................................................................7
4.1 GIA 0420 WK(T)..................................................................................................................................................7
4.1.1 Terminal assignment.................................................................................................................7
4.2 GIA 0420 VO(T)..................................................................................................................................................7
4.2.1 Assignment of the angle-type plug ............................................................................................7
4.2.2 Adjustment of the connections of the GIA 0420 VO(T):.............................................................7
4.3 GIA 0420 M12(T) ................................................................................................................................................8
4.3.1 Assignment of the M12 Connectors...........................................................................................8
4.4 ASSIGNMENT OF SWITCHING OUTPUTS (AT OPTION S2) ...........................................................................................8
4.4.1 Example assignment for switching output (i.e. switching of relays)............................................9
4.5 ADJUSTING THE DISPLAY ORIENTATION...................................................................................................................9
4.5.1 Adjusting the display of plug in variants.....................................................................................9
4.5.2 Adjusting orientation of display in the housing...........................................................................9
5CONFIGURATION...................................................................................................................................................10
5.1 ADDITIONAL PARAMETER FOR OPTION S2.............................................................................................................11
6SELECTION OF SWITCHING AND ALARM POINTS ...........................................................................................13
7OFFSET AND SLOPE ADJUSTMENT...................................................................................................................14
8MIN-/MAX- VALUE MEMORY ................................................................................................................................14
9ERROR CODES ......................................................................................................................................................15
10 DECOMMISSIONING, RESHIPMENT AND DISPOSAL ....................................................................................16
10.1 RESHIPMENT...................................................................................................................................................16
10.2 DISPOSAL INSTRUCTIONS.................................................................................................................................16
11 SPECIFICATIONS ...............................................................................................................................................17

E41.0.X1.6C-06 Installation and Operating Manual GIA 0420 … page 3 of 18
1 General note
Read this document carefully and get used to the operation of the device before you use it. Keep this document within
easy reach near the device for consulting in case of doubt.
2 Designated Use
2.1 Intended Use
The GIA 0420 VO(T), GIA 0420 M12(T) and GIA 0420 WK(T) are microprocessor controlled display devices for 4..20
mA input signals.
They do not require an auxiliary voltage source but can be supplied directly from the measuring current.
The GIA 0420 … is designed for the connection of any measuring transducers (with a 4 to 20 mA output).
The maximum connection values (please refer to specification) must be observe.
Only technically qualified persons are permitted to carry out installation, commissioning, operation and decommis-
sioning. The qualified personnel must have carefully read and understood the operating manual before beginning
any work.
This device must not be used at potentially explosive areas, as safety or emergency stop devices or in any other
application where failure of the product could result in personal injury or material damage.
This device must not be used at a patient for diagnostic or other medical purpose
The liability and warranty of the manufacturer for damages and consequential damages are voided with misuse, dis-
regard of this operating manual, assignment of inadequately qualified technical personnel and arbitrary modifications
of the product.
2.2 Safety signs and symbols
Warnings are labelled in this document with the followings signs:
Caution!
This symbol warns of imminent danger, death, serious injuries and significant damage to
property at non-observance
Attention!
This symbol warns of possible dangers or dangerous situations which can provoke damage
to the device or environment at non-observance.
Note!
This symbol point out processes which can indirectly influence operation or provoke
unforeseen reactions at non-observance.
2.3 Skilled personnel
are persons who are familiar with the set-up, installation, commissioning and operation of the product and have
appropriate qualification for their work. For example:
•Training or instruction and/or authorisation, power circuits and devices/systems in accordance with the standards
of safety for activation, deactivation, disconnection, earthing and identification.
•Training or instruction in accordance with the standard of safety technology for care and use of suitable safety
equipment.

E41.0.X1.6C-06 Installation and Operating Manual GIA 0420 … page 4 of 18
2.4 Safety guidelines
This device has been designed and tested in accordance with the safety regulations for electronic devices. However,
its trouble-free operation and reliability cannot be guaranteed unless the standard safety measures and special safety
advises given in this manual will be adhered to when using the device.
1.
Install the displaying device according to the manufacturer's specifications and the valid
standards and regulations.
2.
Modifications or repairs of the device may not be performed by the customer.
For maintenance or repair the device must be sent to the manufacturer.
3.
To configure GIA 0420 VO, GIA 0420 WK and GIA 0420 M12 the cover has to be carefully
removed to get access to the needed buttons. Exposed parts must not be damaged!
This has to be done only by trained personnel and with consideration of adequate ESD safety
precautions.
Take care to insert the sealing correctly when reassemble the cover.
4.
Trouble-free operation and reliability of the device can only be guaranteed if the device is not
subjected to any other climatic conditions than those stated under “Specification”.
5.
When connecting the device 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.
6.
If there is a risk whatsoever involved in running it, the device has to be switched off immediately
and to be marked accordingly to avoid re-starting.
Operator safety may be a risk if:
- there is visible damage to the device.
- the device is not working as specified.
- the device has been stored under unsuitable conditions for a longer time.
In case of doubt, please return device to manufacturer for repair or maintenance.
7.
Do not use these products 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.
8.
This device must not be used at potentially explosive areas!
9.
This device must not be used at a patient for diagnostic or other medical purpose.

E41.0.X1.6C-06 Installation and Operating Manual GIA 0420 … page 5 of 18
3 Product description
3.1 Scope of supply
display device
each 1 erection crew M3 x 68, M3 x 75 (only for GIA 0420 VO..)
mounting and operating manual
3.2 Design types
GIA 0420 VO
GIA 0420 WK
GIA 0420 M12
GIA 0420 VOT
GIA 0420 WKT
GIA 0420 M12T
3.3 Function description
The GIA 0420 VO(T), GIA 0420 WK(T) and GIA 0420 M12(T) are microprocessor controlled display devices.
The different design types of the device have an input for:
- standard signal 4 –20 mA
The measuring value is displayed on a 4-digit LCD display with max. display area ranging from -1999 to +9999 digits.
The GIA 0420 … is designed for the connection of any measuring transducers (with a 4 to 20 mA output).
This design type doesn't need an auxiliary supply as it is supplied by the measuring current.
The option “S2” provides 2 additional switching outputs (NPN-output) that can be configurated as 2-point-controller, 3-
point-controller, 2-point-controller with min/max alarm or as min/max alarm (separate or together).
The states of the switching outputs are displayed with 2 arrows at the upper edge of the 7-segment display.
Parameter and limit values are entered via three keys which are accessible after removal of the cover (design type
VO, WK and M12).
Devices of the design type VOT, WKT and M12T have that keys freely accessible at top of the device.
The operating range of the display device can be directly adjusted to the transmitter without any additional
accessories by simply entering the maximum and minimum measuring range limits as well as the decimal point
position.
All programmable parameters of the device are saved in an EEProm. In case of a current failure they will remain there
for at least 10 years. The device 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 measuring sensor monitoring for values
exceeding or falling below permissible limits ensure maximum operational reliability of the device.

E41.0.X1.6C-06 Installation and Operating Manual GIA 0420 … page 6 of 18
However, prior to you starting your operation make sure to configurate the device for your application.
Please also refer to chapter "Configuration".
3.4 Identification
Examples for type plates






Device type

Variante code

Information to measuring input (refer to chap. 11)

Information to assignment (refer to chap. 4)

Serial number

Disposal note (refer to chap.10.2)

lease refer to manual:
Read the mounting- and operating manual carefully,
before you connect and use the device.
 

3.5 Display and operating elements
Display fort he state oft he switching output 1
Display fort he state oft he switching output 2
Main display
Button 1, >2s: activates menu "switching points ..." (refer to chap.6)
(only available for devices with option S2)
In menu: save value or step to next parameter
Button 2, short display max. value
Button 2, >2s: activates configuration menu (refer to chap.5)
Button 2 + 3, >2s: reset min-/max. value
In menu: press short= increase value.
press long = roll-function with overflow-function.*)
Button 3, short display min. value
Button 2, >2s: activates offset/slope menu " (refer to chap. 7)
Button 2 + 3, >2s: reset min-/max. value
In menu: press short= increase value.
press long = roll-function with overflow-function.*)
*) The input is made with the buttons 2 and 3. 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.

E41.0.X1.6C-06 Installation and Operating Manual GIA 0420 … page 7 of 18
4 Electric connection
4.1 GIA 0420 WK(T)
The connection of the GIA 0420 WK occurs via 2-wire connection cable.
Supply voltage: device takes power 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 !
4.1.1 Terminal assignment
connection
number
wire colour
GIA 0420 WK(T)
1
white
signal +
2
brown
signal -
4.2 GIA 0420 VO(T)
To connect the GIA 0420 VO it is simply plugged into an existing transmitter by means of a special adapter for the
cubic plug according to DIN EN 175301-803 A (ex. DIN43650 A).
Supply voltage: device takes power 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!
4.2.1 Assignment of the angle-type plug
Standard assignment of the angle-type plug:
contact
number
wire colour
(socket contact)
GIA 0420 VO(T)
pin
socket
1
grey
GIA.. +
GIA.. -
2
red
connected
3
--
n.c.
n.c.
4 ( )
--
n.c.
n.c.
n.c. = non connected
4.2.2 Adjustment of the connections of the GIA 0420 VO(T):
Pin 2 of the elbow-type plug is directly connected with the socket.
The GIA 0420 VO(T) is between pin 1 (+) and socket contact 1 (-).
If the 'Signal/GND'-line in your transmitter is not assigned to contact 2 and if the '-Ub'-line is not assigned to contact 1,
please do not forget to adjust the GIA..-angle-type plug and the external angle-type plug accordingly:
To do so open the GIA..-angle-type plug (refer to the “general instructions
for change ....” on the next page) and exchange the wire of contact 1 and
contact 2 against the wire of the contact representing the connection in your
transmitter. Then exchange and rewire the two contacts in the angle-type plug of your connecting cable.
General instructions for change of the angle-type plug assignment:
Remove the coupling insert by means of a screw driver at the position indicated (arrow).
Change the assignment according the notes of the respective input signal.
Latch coupling insert in cover. You have a choice between 4 different orientations –each of them spaced 90°.
Put on angel-type plug and connect plugs using the long screw delivered (do not forget seals).
assignment of GIA 0420 VO(T) –ex (standard)
pin
+
_
1
2
3
4
1
2
3
4
socket

E41.0.X1.6C-06 Installation and Operating Manual GIA 0420 … page 8 of 18
4.3 GIA 0420 M12(T)
The connection of the GIA 0420 M12 is simply done by plugging in the instrument on an existing transmitter by means
of the adapter construction for 4-pole M12-A and fixing the screw locks.
Supply voltage: device takes power from measuring current
Electric connection and commissioning of the device has to 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 40 mA under any circumstances !
4.3.1 Assignment of the M12 Connectors
Pls. have in mind that there are existing different versions of the pin assignment of M12-A connectors and therefore
different variants of the GIA 0420 M12(T) are available:
contact
number
Device variant
… - 12
… - 13
… - 24
pin
socket
pin
socket
pin
socket
1
GIA.. +
GIA.. -
GIA.. +
GIA.. -
n.c.
n.c.
2
connected
n.c.
n.c.
GIA.. +
GIA.. -
3
n.c.
n.c.
connected
n.c.
n.c.
4
n.c.
n.c.
n.c.
n.c.
connected
n.c. = non connected
Pls. remind that when using shielded connection cables the adapter construction has no shield con-
nection. If a shield is connected via the screw of a connection cable, it is not carried through the in-
strument. The shielding connection is cut by plugging in the instrument.
4.4 Assignment of switching outputs (at option S2)
Please note that the maximal permissible voltage as well as the maximal switching current of the switching outputs
must not be exceeded (not even for a short time).
Especially if inductive loads (i.e. relays, coils, etc.) are switched, it is important to limit the occurring voltage peaks by
adequate protective measures.
If big capacitive loads are switched it is necessary to limit the switch-on current to permissible values by inserting a
resistor or a current limiting. The same applies to bulbs, because they can also produce high switch-on currents due to
their low cold resistance.
1
2 4
3
Switching output 2 +
Switching output 2 -
Assignment of connection cable EBK401:
1 -brown = switching output 1 -
2 -white = switching output 1 +
3 -blue = switching output 2 -
4 -black = switching output 2 +
Masse
Switching output 1 +
Switching output 1 -
Switching output
view to
pin contacts

E41.0.X1.6C-06 Installation and Operating Manual GIA 0420 … page 9 of 18
4.4.1 Example assignment for switching output (i.e. switching of relays)
Assignment as low-side switch Assignment as high-side switch
4.5 Adjusting the display orientation
The flexible adjustable display orientation is a key feature of the instruments
4.5.1 Adjusting the display of plug in variants
The cable adaptor construction can be turned 340° against the display orientation.
Do not use force against the endpoints, which are limiting the turning angle, otherwise there
may be damage to the internal cabling!
Furthermore, there is the possibility to change the orientation of the connector blocks in the adapter construction
GIA 0420 VO(T): The connector block can be turned in 90° steps 360°,
for this please refer to 4.2.2 Adjustment of the connections of the GIA 0420 VO(T):
GIA 0420 M12(T) The connector block can be turned in 45° steps 360°,
for this please
- dismantle the black fastening nut of the adaptor
- pull connector block out straight until you are able to turn it
(do not pull further –this may harm the cabling)
- turn the block carefully to the desired orientation
- remount the block and tighten the fastening nut again
4.5.2 Adjusting orientation of display in the housing
All variants have the possibility of adjusting the LCD module within the housing in 90° steps.
This only has to be done with disconnected device!
This has to be done only by trained personnel and with consideration of adequate ESD safety
precautions. The touchable components are not to be damaged!!
Take care to insert the sealing correctly when reassemble the cover.
Procedure:
•dismantle the 4 housing screws and lift of the lid
•take out PCB carefully, best using the LCD as a grip and turn to the desired orientation. Reinsert PCB.
•check the sealing and its correct position in the housing, mount the lid and screw in the 4 housing screws with
care: Avoid to high force, otherwise the housing may be damaged
Switching output +
Switching output -
supply
supply
Switching output +
Switching output -

E41.0.X1.6C-06 Installation and Operating Manual GIA 0420 … page 10 of 18
button2
button1
button3
5 Configuration
Note: To configure GIA 0420 VO, GIA 0420 WK and GIA 0420 M12 the cover has to be removed carefully
to get access to the needed buttons.
Take care of adequate ESD safety precautions to prevent damage to the exposed parts!
Please note: measuring current should be at least 4 mA during configuration!
Follow these instructions to configure the device:
Press button 2 for 2 seconds during actual value display, „dP“ is displayed.
Set parameter value with button 2 and button 3.
Save the set with button 1, the parameter name is displayed again.
Proceed to the next parameter with button 1, the name of that parameter is
displayed.
If there is no key pressed within 60 seconds the configuration is cancelled.
The settings already entered are lost.
Parameter
Value
Description
Button 1
Button 2 and 3
DP
Position of decimal point
----
Max. display range: -1999 …9999
---.-
Max. display range: -199.9 …999.9
--.--
Max. display range: -19.99 …99.99
-.---
Max. display range: -1.999 …9.999
D,.LO
Lower display range limit (display low)
-1999 ... 9999
This value is displayed for input signal = 4mA.
D,.X,
Upper display range limit (display high)
-1999 ... 9999
This value is displayed for input signal = 20mA.
L,
(Measuring range) limit
OFF
deactivated:
Exceeding of the measuring range limit is tolerable as long as value is within
measuring range (p.r.t. note).
ON.ER
active, (display 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, (display measuring range limit):
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 shortfalling or exceeding, the device will display 0% or 100%.
Note: When exceeding the measuring range, the device will always display an error message (.Err.1. or .Err.2.)
independent of the current limit settings.
The measuring range is from approx 3,7 and 20,8 mA.
FILT
Filter
OFF
Filter deactivated
0. 1 ... 2.0
Filter active: Prevents “jumping” of the last digit and filters short noise pulses.
Higher numbers imply stronger filtering
Attention: this causes higher response times of the switching functions!
The configuration is done at this point for devices without option “switching output”. Press button 1 one more time
after the input of the last parameter to close the configuration menu. The devices restarts (segment test).