GREISINGER GIA 2448 Digital Indicator Module for Signals Instruction Manual
- June 17, 2024
- GREISINGER
Table of Contents
GREISINGER GIA 2448 Digital Indicator Module for Signals
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. Mounting, start-up, operating, maintenance and removing from operation must be done by qualified, specially trained staff that have carefully read and understood this manual before starting any work. The manufacturer will assume no liability or warranty in case of usage for other purpose than the intended one, ignoring this manual, operating by unqualified staff as well as unauthorized modifications to the device. The manufacturer is not liable for any costs or damages incurred at the user or third parties because of the usage or application of this device, in particular in case of improper use of the device, misuse or malfunction of the connection or of the device.
Safety
Intended Use
The GIA 2448 / GIA 2448 WE is a digital indicator module; only actuate it in
the intended use.
Safety signs and symbols
- Warnings are labelled in this document with the following 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 that can provoke damage to the device or environment at non-observance.
Note! This symbol points out processes that can indirectly influence operation or provoke unforeseen reactions at non-observance.
Safety guidelines
Make it a rule to always observe the following points to exclude any risk
whatsoever for the operator.
- In case of any obvious damage and/or functional problems disconnect the device immediately
- Before opening it, disconnect the device and supply the voltage source. Make sure that all parts of the device are protected against direct touching when mounting the device and setting its connections.
- Please always adhere to the standard safety regulations for electric devices, power systems and light-current installations, and make sure that your national safety regulations (e.g. VDE 0100) are observed.
- If the device is to be connected to other devices (e.g. via serial interface) the circuitry has to be designed most carefully. Internal connection in third-party devices may result in non-permissible voltages.
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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”. If the device is transported from a cold to a warm environment condensation may cause in a failure of the function. In such a case make sure the device temperature has adjusted to the ambient temperature before trying a new start-up.
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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 restarting. 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 the device to the manufacturer for repair or maintenance.
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When connecting the device to other devices the connection 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 that can lead to malfunctions or destruction of the device and the connected devices.
Danger
This device must not be run with a defective or damaged power supply unit. Danger to life due to electrical shock! -
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.
Skilled Personnel
These are persons who are familiar with the installation, mounting,
commissioning and operation of the product and have acquired a qualification
for their job:
- Training or instructions or qualification to switch on/off, isolate, ground and apply markings to circuits and devices/systems following the latest state-of-the-art standards of safety technology.
- Training or instructions regarding the proper care and use of suitable safety equipment under the latest state-of-the-art standards of safety technology.
- First aid training.
Scope of supply
The scope of supply includes:
- Digital introducer module GIA 2448 or GIA 2448 WE
- User’s guide
Accessories: (small selection – for our complete accessories refer to our catalogue)
Electric Connection
Electric connections for the GIA 2448 are located at the back of the device. Connection is made via screw-type/plug-in terminals (max. terminal range 1,5mm²). Make it a rule to always mount screw-type/plug-in terminals while they are still loose and connect only later. If terminals are mounted after connection there is a risk that soldering eyes may come loose. Please use a suitable screwdriver and do not tighten screws by force.
Supply voltage
- Terminal assignment:
- 12 V DC or 24 V DC
- Terminal assignment: + Uv = supply voltage +
- GND = supply voltage –
Please make sure to check if supply voltage and voltage range set conform to each other. Use the soldering jumper next to the connection terminal to select the supply voltage:
- Jumper “A1” open: 24 V ( 18 – 29 V DC)
- Jumper “A1” closed: 12 V ( 8 – 20 V DC)
Signal connection: standard signals (0-200mV, 0-1V, 0-2V, 0-10V, 0-20V, 0-20mA or 4-20mA)
- Terminal assignment:
- S+ = signal +
- S- = signal –
Please note: The terminal S- (signal -) and GND (supply voltage -) are connected within the device!
Both the connection and commissioning of the device must only be carried out by skilled personnel. In case of a wrong connection, the device may be destroyed – no warranty claims can be accepted!
The setting of the GIA2448
Below you will find a description as to how a GIA2448 can be adapted to its signal source.
Remove PC board from the housing
To be able to reach the soldering jumpers on the bottom of the PC board or the
potentiometers the PC board has to be taken out of its housing.
How to remove the front screen
- Place screwdriver in the gap between screen and housing.
- Separate the front screen from the housing by turning the screwdriver carefully.
How to remove the back screen bolt
- Carefully insert a small screw driver between the housing and the back screen bolt.
- Use the screwdriver to push the bolt backwards and slightly lift it till the bolt locking is visible.
- Pull back the screen upwards and remove it.
Push PC board out of its housing (do not forget to take off the screw-type /plug-in terminals before doing so).
Selection of input signal:
Use soldering jumpers E1 to E5 to select the input signal required. Please
refer to the opposite table for information which soldering jumper needs to be
set for the required input signal.
PLEASE NOTE!
Never set any other soldering jumpers but the ones required. All other
soldering jumpers need to be open.
Selection of decimal point
One soldering jumper is located beneath each of the first 3 LEDs on the PC
board. To set the decimal point use the soldering jumper
- P3 – a soldering jumper for position 1000 (display e.g. 1.234)
- P2 – a soldering jumper for position 100 (display e.g. 12.34)
- P1 – a soldering jumper for position 10 (display e.g. 123.4)
Display adjustment
To adjust the GIA 2448 a transducer corresponding to the input signal selected
is required. Please note: The accuracy of the adjustment and thus of your GIA
2448 is highly dependent on the transducer accuracy. To guarantee optimum
adjustment results your transducer accuracy should be 0.05%, preferably
better.
Preliminary Adjustment
Use soldering jumpers B1, B2 or B4 to roughly divide the display range.
Measuring range
To facilitate the setting of the device its measuring range (difference
between may. and min. display value) has been roughly divided into 2 areas.
Please refer to the opposite table for the soldering jumper to be set.
Note: Due to tolerances the jumper to be set cannot Be established for the range 500 to 750. If your measuring range is within this area, please select the area next to your measuring range (e.g. for 600 select range 100 to 500 (jumper 2)). To set device proceed according to the description under 5.4.2. If setting is not working, set alternative jumper (for our example jumper 4) and repeat setting procedure.
Zero point displacement
A zero point displacement is possible for the range of +/- of the measuring range selected (display value for 0V, 0mA or 4 mA). The zero point displacement has also been divided into two areas.
- Set soldering jumper B1 for a positive displacement (display for 0V or 0mA exceeding 0).
- Do not set soldering jumper B1 (display for 0V or 0mA less than 0).
For 4-20mA the area assignment changes – p.r.t. table.
Adjustment
Below you will find 2 different procedures for the adjustment of the GIA2448:
- Interactive adjustment:
- Advantage: simple, no calculation required
- Disadvantage: slow as the adjustment is carried out in several runs
- Adjustment with calculation:
- Advantage: adjustment in only one run.
- Disadvantage: the values to be set need to be calculated
Interactive Adjustment
Zero adjustment
- Use a transducer to apply an input signal of 0V, 0mA or 4mA.
- Set the display of GIA2448 to the value desired using the R21 potentiometer. (2nd potentiometer after the display) If this value cannot be set, use R18 potentiometer.
Adjustment of lead
- Use a transducer to apply an input signal of 200mV, 1V, 2V, 10V, 20V or 20mA.
- Set the display to the value desired using the R18 (the potentiometer directly after the display)
Repeat points a.) and b.) till the display values for 0V, 0mA or 4mA and for 200mV, 1V, 2V, 10V, 20V or 20mA are correct. (The procedure should be completed after a max. of 10 runs.).
Adjustment with calculation
- Zero point calculation:
- Calculate the input signal required for the display value 0: Calculation for input signals: 0 – ? V or 20mA
Zero point adjustment:
- Use transducer to apply calculated value of input signal.
- Set the display of the GIA2448 to 0 using the R21 potentiometer (2nd potentiometer after the display).
Adjustment of lead:
- Use transducer to apply 200mV, 1V, 2V, 10V, 20V or 20mA.
- Set display to value desired using the R18 potentiometer (potentiometer directly after the display). Check display values for 0V, 0mA or 4mA and for 200mV, 1V, 2V, 10V, 20V or 20mA once again.
Connection layouts for GIA2448
Connection of a 4 – 20 mA transducer with 2-wire system
Connection of a 0(4) – 20 mA or. 0 – 1 (10) V transducer with 3-wire system
Connection of a 0 (4) – 20 mA or 0 – 1 (10) V transducer with a 4-wire system
Specifications
Reshipment and Disposal
Reshipment
All devices returned to the manufacturer have to be free of any residual of
measuring media and other hazardous substances. Measuring residuals at housing
or sensor may be a risk for persons or environment Use an adequate transport
package for reshipment, especially for fully functional devices. Please make
sure that the device is protected in the package by enough packing materials.
Disposal instructions
Batteries must not be disposed in the regular domestic waste but at the
designated collecting points. The device must not be disposed of 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.
References
Read User Manual Online (PDF format)
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