GREISINGER GIA 20 EB Instruction manual

E31.0.02.6C-04 Manual for connection and operation of the GIA 20 EB page 1 of 27
Manual for connection and operation of
GIA 20 EB
as of version 2.5
GREISINGER electronic GmbH
D - 93128 Regenstauf, Hans-Sachs-Straße 26
Phone: [phone] / 9383-0, Fax: [phone] / 9383-33, e-mail: [email protected]

E31.0.02.6C-04 Manual for connection and operation of the GIA 20 EB page 2 of 27
I N D E X
1. SAFETY REGULATIONS .......................................................................................................................................... 3
2. INTRODUCTION ........................................................................................................................................................ 4
3. ELECTRIC CONNECTION ....................................................................................................................................... 5
3.1. Terminal assignment................................................................................................................................................ 5
3.2. Connection data ....................................................................................................................................................... 5
3.3. Connecting an input signal....................................................................................................................................... 5
3.3.1. Connecting a Pt100 or Pt1000 RTD probe or a thermocouple probe ............................................................... 5
3.3.2. Connecting a 4-20mA transmitter in 2-wire-technology .................................................................................. 6
3.3.3. Connecting a 0(4)-20mA transmitter in 3-wire-technology.............................................................................. 6
3.3.4. Connecting a 0-1V, 0-2V or 0-10V transmitter in 3-wire-technology.............................................................. 6
3.3.5. Connecting a 0-1/2/10V or 0-50mV transmitter in 4-wire-technology............................................................. 6
3.3.6. Connecting a frequency- or rotation-signal....................................................................................................... 7
3.3.7. Connecting a counter signal.............................................................................................................................. 8
3.4. Connecting switching outputs.................................................................................................................................. 9
3.4.1. Connection with configured low-side-switching output (NPN output, switching to GND) .............................9
3.4.2. Connection with configured high-side-switching output (PNP output, switching to +Uv) .............................. 9
3.4.3. Connection with configured push-pull-switching output................................................................................ 10
3.5. Common wiring of several GIA20EB ................................................................................................................... 10
4. CONFIGURATION OF THE DEVICE ................................................................................................................... 11
4.1. Selecting an input signal type ................................................................................................................................ 11
4.2. Measuring voltage and current (0-50mV, 0-1V, 0-2V, 0-10V, 0-20mA, 4-20mA)............................................... 12
4.3. Measuring temperature (Pt100, Pt1000 RTD probes and thermocouple type J, K, N, S or T) ....................................... 13
4.4. Measuring of frequency (TTL, switching-contact) ............................................................................................... 14
4.5. Measuring of rotation speed (TTL, switching-contact) ........................................................................................ 15
4.6. Up-/Downwards counter (TTL, switching-contact).............................................................................................. 16
4.7. Interface mode ....................................................................................................................................................... 18
4.8. Selection of the output function............................................................................................................................. 18
5. SWITCHPOINTS AND ALARM-BOUNDARIES.................................................................................................. 20
5.1. 2-point-controller, 3-point-controller..................................................................................................................... 20
5.2. 2-point-controller with alarm function................................................................................................................... 21
5.3. Minimum/maximum-alarm (individual or common)............................................................................................ 22
6. OFFSET- AND SLOPE-ADJUSTMENT ................................................................................................................. 23
7. MIN-/MAX-VALUE STORAGE: ............................................................................................................................. 24
8. SERIAL INTERFACE:.............................................................................................................................................. 24
9. ERROR CODES ......................................................................................................................................................... 24
10. SPECIFICATION..................................................................................................................................................... 26
11. DISPOSAL NOTES.................................................................................................................................................. 27

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1. 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 unit‘s 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 malfunc-
tions 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 prop-
erty 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.

E31.0.02.6C-04 Manual for connection and operation of the GIA 20 EB page 4 of 27
2. Introduction
The GIA20EB 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 )
- RTD (for Pt100 and Pt1000),
- Thermocouple probes (type K, J, N, T and S)
- Frequency (TTL and switching contact)
As well as rotation measuring, counting, etc. ...
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 LED’s 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 EASYBUS-interface for communicating with a host computer that makes
the device to a full functions EASYBUS-module.
When leaving our factory the GIA20EB has been subjected to various inspection tests and is completely
calibrated.
Before the GIA20EB can be used, it has to be configured for the customer’s application.
Hint: In order to avoid undefined input states and unwanted or wrong switching processes, we sug-
gest to connect the device’s 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‘)

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3. Electric connection
Wiring and commissioning of the device must be carried out by skilled personnel only.
In case of wrong wiring the GIA20EB may be destroyed. We can not assume any warranty in case of
wrong wiring of the device.
3.1. Terminal assignment
11 EASYBUS-Interface
10 EASYBUS-Interface
9Input: 0-1V, 0-2V, mA, frequency, Pt100, Pt1000
8Input: 0-50mV, thermocouples, Pt100
7Input: GND, Pt100, Pt1000
6Input: 0-10V
5Supply voltage: GND
4Supply voltage: +Us (+Uv)
3Switching output: GND
2Switching output: 2
1Switching output: 1
Hint: The contacts 3, 5 and 7 are connected internally.
3.2. Connection data
typical limitations
Between
terminals min. max. min. max. notes
Supply voltage 4 and 5 9 V 28 V 0 V 30 V
NPN 30V,
I<1A
Not short circuit pro-
tected
Switching output
1 and 2 PNP
1 and 3,
2 and 3 I<200mA Not short circuit pro-
tected
Input mA 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
These limits must not be exceeded (not even for a short time) !
3.3. 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:
3.3.1. Connecting a Pt100 or Pt1000 RTD probe or a thermocouple probe
Pt1000-RTD probe (2-wire) Pt100-RTD probe (3-wire) Thermocouple probe
11 10 98765 3214
11
10
9
8
7
6
5
4
3
2
EASYBUS
1V, mA, Freq., Pt100(0)
mV, TC, Pt100
GND, Pt100(0)
10V
GND, Supply -Uv
Supply +Uv
GND
EASYBUS
1
Output 2
Output 1
TC
4
5
7
8
-
+
+
_
Supply
9-28 VDC
Pt100
4
5
7
8
9
+
_
Supply
9-28 VDC
Pt1000
+
_
Supply
9-28 VDC
4
5
7
9

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3.3.2. Connecting a 4-20mA transmitter in 2-wire-technology
with individual transmitter supply without individual transmitter supply
3.3.3. Connecting a 0(4)-20mA transmitter in 3-wire-technology
with individual transmitter supply without individual transmitter supply
3.3.4. Connecting a 0-1V, 0-2V or 0-10V transmitter in 3-wire-technology
with individual transmitter supply without individual transmitter supply
3.3.5. 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 –Uv of the Transmitter must be the same potential)
+
_
Supply
9-28 VDC
4-20mA
Transmitter
+Uv
-Uv
+
_Supply
for Transmitter
4
5
7
9
+
_
Supply
9-28 VDC
4-20mA
Transmitter
+Uv
-Uv
4
5
9
0(4)-20mA
Transmitter
+Uv
Sig.
-Uv
+
_
Supply
9-28 VDC
+
_Supply:
for Transmitter
4
5
7
90(4)-20mA
Transmitter
+Uv
Sig.
-Uv
+
_
Supply
9-28 VDC
4
5
9
Transmitter
+Uv
Sig.
-Uv
+
_
Supply
9-28 VDC
+
_Supply
for Transmitter
4
5
6
7
9
10V
1V / 2V
+
_
Supply
9-28 VDC
4
5
6
9
10V
1V / 2V Transmitter
+Uv
Sig.
-Uv
+
_
Supply
9-28 VDC
+
_Supply
for Transmitter
4
5
6
7
8
9
10V
1V / 2V
Transmitter
+Uv
Sig-
-Uv
Sig+
50mV
Transmitter
+Uv
Sig-
-Uv
Sig+
+
_
Supply
9-28 VDC
4
5
6
7
9
10V
1V / 2V
50mV

E31.0.02.6C-04 Manual for connection and operation of the GIA 20 EB page 7 of 27
3.3.6. Connecting a frequency- or rotation-signal
When measuring frequency or rotation three different input signals can be selected in the device’s con-
figuration.
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 (~11kΩreferring to +3.3V)
is connected internally. So when You use a device with NPN output You don‘t need to connect a resistor
externally.
When configuring the device with a PNP switching output, a pull-down resistor (~11kΩreferring to GND)
is connected internally. So when You use a device with PNP output You don‘t 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 „TTL“.
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) Connection of a transducer (without separate power supply)
with TTL or PNP output and external resistor for current limitation. 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 Connection of a transducer (without separate power supply) with NPN output
and necessary external resistor and necessary external resistor.
Hint: Rv = 3kΩ(with power supply voltage = 12V) or 7kΩ(with power supply voltage = 24V), device configuration: Sens = TTL
+
_
Supply
9-28 VDC
+
_Supply
for Transducer
4
5
7
9
Transducer
+Uv
Sig.
-Uv
+
_
Supply
9-28 VDC
4
5
9Transducer
+Uv
Sig.
-Uv
+
_
Supply
9-28 VDC
4
5
7
9+
_Supply
for Transducer
Rv
Transducer
+Uv
Sig.
-Uv
+
_
Supply
9-28 VDC
4
5
9
Rv
Transducer
+Uv
Sig.
-Uv
Transducer
+Uv
Sig.
-Uv
+
_
Supply
9-28 VDC
+
_Supply
for Transducer
4
5
7
9
+
_
Supply
9-28 VDC
4
5
9Transducer
+Uv
Sig.
-Uv

E31.0.02.6C-04 Manual for connection and operation of the GIA 20 EB page 8 of 27
Connecting of a transducer (with individual power supply) Connecting of a transducer (without individual power supply)
PNP output with external resistor wiring. 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.)
3.3.7. 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`s
Hint for GIA20EB:
Device 1 – Input signal like impuls-transmitter,
Output 2 configured as NPN output
Device 2 – Input-signal = switching-contact
Reset-
Button
+
_
Supply:
9-28 VDC
4
5
7
8
9Transducer
+Uv
Sig.
-Uv
+
_
Supply
9-28 VDC
2
4
5
7
8
9
Device
No.1
Pulse
generator
+Uv
Sig.
-Uv
2
4
5
7
8
9
Device
No.2
Reset-
Button
+
_
Supply
9-28 VDC
2
4
5
7
8
9Transducer
+Uv
Sig.
-Uv
+
_
Supply
9-28 VDC
4
5
7
9+
_Supply
for Transducer
Transducer
+Uv
Sig.
-Uv
Rv2
Rv1
+
_
Netzteil:
9-28 VDC
4
5
7
9Geber
+Uv
Sig.
-Uv
Rv2
Rv1

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3.4. Connecting switching outputs
The device features two switching outputs, with three different operating modes for each switching out-
put, 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: “+Us-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, it’s 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 pre-
sent). The output transistor opens or the push-pull output changes from +Us to –Us when an alarm con-
dition occurred.
Hint: In order to avoid unwanted or wrong switching processes, we suggest to connect the
device’s switching outputs after you have configured the device’s 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, protec-
tive 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.
3.4.1. Connection with configured low-side-switching output (NPN output, switching to GND)
Connection of consumer loads (relay and lamp) Connection of consumer loads (relay and lamp)
(without individual supply voltage) (with individual supply voltage)
3.4.2. Connection with configured high-side-switching output (PNP output, switching to +Us)
Connection of consumer loads (relay and lamp)
+
_
Supply
9-28 VDC
+
_Supply
for load
1
2
3
4
5
+
-
Relay
Hints:
Connections 3 and 5 are internally electrically connected.
When switching higher currents (> 50 mA) , the –Uv connec-
tion should not be attatched 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.
+
_
Supply
9-28 VDC
1
2
3
4
5
+
-
Relay
+
_
Supply
9-28 VDC
1
2
3
4
5
+
-
Relay

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3.4.3. Connection with configured push-pull-switching output
Connection of a semiconductor-relay
3.5. Common wiring of several GIA20EB
Inputs and outputs are not electrically isolated. When interconnecting several GIA20EB`s you have to make
sure that there is no potential displacement.
Make sure to observe the following points:
- When several GIA20EB`s 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 can’t 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 con-
ductivity-electrodes in fluids).
+
-
Uin Semicond.-
relay
+
_
Supply
9-28 VDC
1
2
3
4
5

E31.0.02.6C-04 Manual for connection and operation of the GIA 20 EB page 11 of 27
4. Configuration of the device
Please note: When you are configuring the device and don’t press any button for more than 60 sec. the
configuration of the device will be cancelled. The changes you made will not be saved and will be lost!
Hint: The buttons 2 and 3 are featured with a ‘roll-function‘. 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.
4.1. Selecting an input signal type
- Turn the device on and wait until it completed its built-in segment test.
- Press button 2 for >2 sec. (e.g. with a small screw driver)
The device displays “InP“ ('INPUT').
- Use button 2 or button 3 (middle or right button) to select the input signal
(see table below).
- Validate the selection with button 1 (the left button). The display will show “InP“ again.
Depending on the selected input signal, additional configurations will be needed.
Input type Signal to select as
input proceed in chapter
0 – 10 V
0 – 2 V
0 – 1 V
Voltage signal
0 – 50 mV
U4.2
4 – 20 mACurrent signal
0 – 20 mA I4.2
Pt100 (0.1°C)
Pt100 (1°C)
RTD
Pt1000
t.rES 4.3
NiCr-Ni (Type K)
Pt10Rh-Pt (Type S)
NiCrSi-NiSi (Type N)
Fe-CuNi (Type J)
Thermocouples
Cu-CuNi (Type T)
t.tc 4.3
TTL-signalFrequency
Switch-contact NPN, PNP FrEq 4.4
TTL-signalRotation
Switch-contact NPN, PNP rPn 4.5
TTL-signalCounter up
Switch-contact NPN, PNP Co.uP 4.6
TTL-signalCounter down
Switch-contact NPN, PNP Co.dn 4.6
Interface mode Serial interface SEri 4.7
Please note: When changing the measuring mode “InP“, the input signal “SEnS“ and the display-
unit “Unit“ all settings will be changed to factory default. You have to set all the
other settings. This also regards the settings for offset and slope-adjustment as well
as the switching points!
Button 1 Button 2 Button 3

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4.2. Measuring voltage and current (0-50mV, 0-1V, 0-2V, 0-10V, 0-20mA, 4-20mA)
This chapter describes how you configure the GIA20EB for measuring voltage- or current-signals from an
external transmitter. This instruction demands that you selected “U“ or “I“ as your desired input type like it is
explained in chapter 4.1. The display has to show “InP“.
- Press Button 1. The display shows “SEnS“.
- Select the desired input signal using button 2 or button 3 (middle or right button).
Display Input signal (voltage measuring) Notes
10.00 0 – 10 V
2.00 0 – 2 V
1.00 0 – 1 V
0.050 0 – 50 mV
Display Input signal
(current measuring) Notes
4-20 4 – 20 mA
0-20 0 – 20 mA
- Validate the selected input signal by pressing button 1. The display shows “SEnS“ again.
- Press button 1 again, The display will show “dP“ (decimal point).
- Select the desired decimal point place by pressing button 2 or button 3.
- Validate the selected decimal position by pressing button 1. The display shows “dP“ again.
- Press button 1 again, the display will show “di.Lo“ (Display Low = low display value).
- Use button 2 and button 3 to select the desired value the device should display when a 0mA, 4mA or 0V
input signal is attached.
- Validate the selected value by pressing button 1. The display shows “di.Lo“ again.
- Press button 1 again, the display will show “di.Hi“ (Display High = high display value).
- Use button 2 and button 3 to select the desired value the device should display when a 20mA, 50mV,
1V, 2V or 10V input signal is attached.
- Validate the selected value by pressing button 1. The display shows “di.Hi“ again.
- Press button 1 again. The display will show “Li“ (Limit = Measuring range limit).
- Use button 2 and button 3 to select the desired measuring range limit..
Display Measuring range limit Notes
Off Deactivated
Exceeding of the measuring range limit is
tolerable for about 10% of the selected input
signal.
on.Er Active, (displays error)
The measuring range limit is exactly bounded
by the input signal. When exceeding or
shortfalling the input signal the device will
display an error message.
on.rG Active, (displays the selected limit)
The measuring range limit is exactly bounded
by the input signal. When exceeding or
shortfalling 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%]
Hint: When exceeding the measuring range limit > 10% independently from the setting, the device will always
display an error message (“Err.1“ or “Err.2“).

E31.0.02.6C-04 Manual for connection and operation of the GIA 20 EB page 13 of 27
- Press button 1 to validate the selection, the display shows “Li“ again.
- When pressing button 1 again, the display will show “FiLt“ (Filter = digital filter).
- Use button 2 and button 3 to select the desired filter [in sec.].
Selectable values: 0.01 ... 2.00 sec.
Explanation: this digital filter is a digital replica of a low pass filter.
Note: when using the input signal 0-50mV a filter value of at least 0.2 is recommended
- Press button 1 to validate your value, the display shows “FiLt“ again.
Now your device is adjusted to your signal source. Now the only thing left to do is to adjust the outputs of the
device.
- When pressing button 1 again, the display shows “outP“. (output)
For configuring the outputs of the GIA20EB, please follow the instructions given in chapter 4.8.
4.3. Measuring temperature (Pt100, Pt1000 RTD probes and thermocouple type J, K, N, S or T)
This chapter describes how to configure the device for temperature measuring with the help of external plati-
num RTD probes or thermocouple probes. This instruction demands that you selected “t.res“ or “t.tc“ as your
desired input type like it is explained in chapter 4.1. The device has to display “InP“.
- When pressing button 1 the display shows “SEnS“.
- Use button 2 or button 3 (middle or right button) to select your desired input signal.
Display Input signal
(RTD) Notes
Pt0.1 Pt100 (3-wire) Meas.-range: -50.0 ... +200.0 °C (-58.0 ... + 392.0 °F)
Resolution: 0.1°
Pt1 Pt100 (3-wire) Meas.-range: -200 ... + 850 °C (-328 ... + 1562 °F)
Resolution: 1°
1000 Pt1000 (2-wire) Meas.-range: -200 ... + 850 °C (-328 ... + 1562 °F)
Resolution: 1°
Display Input signal
(Thermocouples) Notes
NiCr NiCr-Ni (type K) Meas.-range: -270 ... +1350 °C (-454 ... + 2462 °F)
SPt10Rh-Pt (type S) Meas.-range: -50 ... +1750 °C (- 58 ... + 3182 °F)
nNiCrSi-NiSi (type N) Meas.-range: -270 ... +1300 °C (-454 ... + 2372 °F)
JFe-CuNi (type J) Meas.-range: -170 ... + 950 °C (-274 ... + 1742 °F)
TCu-CuNi (type T) Meas.-range: -270 ... + 400 °C (-454 ... + 752 °F)
- Validate the selected input signal by pressing button 1. The display shows “SEnS“ again.
- When pressing button 1 again, the display will show “Unit“ (the unit you want to display).
- Use button 2 and button 3 to select whether you want to display °C or °F.
- Use button 1 to validate the selected unit, the display shows “Unit“ again.
- Press button 1 to again, the display will be showing “FiLt“ (Filter = digital filter).
- Use button 2 and button 3 for setting the desired filter-value [in sec.].
Selectable values: 0.01 ... 2.00 sec.
Explanation: this digital filter is a digital replica of a low pass filter.
- Use button 1 to validate your selection, the display shows “FiLt“ again.
Now your device is adjusted to your signal source. Now the only thing left to do is to adjust the outputs of the
device.

E31.0.02.6C-04 Manual for connection and operation of the GIA 20 EB page 14 of 27
- When pressing button 1 again, the display shows “outP“. (output)
For configuring the outputs of the GIA20EB, please follow the instructions shown in chapter 4.8.
For setting the offset and for setting the slope-adjustment, please follow the instructions given in chapter 6.
4.4. Measuring of frequency (TTL, switching-contact)
This chapter describes how to configure the device for measuring frequency.
This instruction demands that you selected “FrEq“ as your desired input type like it is explained in chapter 4.1.
The device has to display “InP“.
- When pressing button 1 the display will show “SEnS“.
- Use button 2 or button 3 (middle or right button) to select the desired input signal.
Display Input signal Note
ttL TTL-signal
nPn Switching contact, NPN
For direct connection of a passive switching
contact (e.g. push button, relay) or Transmitter
with NPN output.
A pull-up-resistor is internally connected.
Hint: when using push-buttons or relays, they must
be bounce-free!
PnP Switching contact, PNP
For direct connection of a transmitter with
PNP output.
A pull-down-resistor is internally connected.
Hint: For the connection of a frequency-transmitter, please follow the instructions given in chapter 3.3.6
When connecting a switching-contact-transmitter with increased frequency range (= with external circuitry)
you have to select TTL as your desired input signal.
- Validate your selected input signal by pressing button 1. The display shows “SEnS“ again.
- When pressing button 1 again, the display will show “Fr.Lo“ (frequency low = lower frequency range limit).
- Use button 2 and button 3 to select the lowest frequency that may occur when measuring.
- Press button 1 to validate your selection. The display shows “Fr.Lo“ again.
- When pressing button 1 again, the display will show “Fr.Hi“ (frequency high = upper frequency range limit).
- Use button 2 and button 3 to select the highest frequency that may occur when measuring.
- Press button 1 to validate your selection. The display shows “Fr.Hi“ again.
- When pressing button 1 again, the display will show “dP“ (decimal point).
- Use button 2 and button 3 to select the desired decimal point position.
- Press button 1 to validate your selection. The display shows “dP“ again.
- When pressing button 1 again, the display will show “di.Lo“ (display low = display at lower frequency range limit).
- Set the value the device shall display at the lower frequency range limit by pressing button 2 or button 3.
- Press button 1 to validate your selection. The display shows “di.Lo“ again.
- When pressing button 1 again, the display will show “di.Hi“ (display high = display at upper frequency range limit).
- Set the value the device shall display at the upper frequency range limit by pressing button 2 or button 3.
- Press button 1 to validate your selection. The display shows “di.Hi“ again.
- When pressing button 1 again, the display will show “Li“ (limit = measuring range limitation).
- Use button 2 and button 3 to select the desired measuring range limitation.
Display Measuring range limit Note
off Inactive
Exceeding of the measuring-frequency is tol-
erable until you reach the maximum measur-
ing range limit.

E31.0.02.6C-04 Manual for connection and operation of the GIA 20 EB page 15 of 27
on.Er active, (error indicator)
The measuring range is exactly bounded by
the selected frequency-measuring-range-limit.
When exceeding or shortfalling of the limit the
device will display an error message.
on.rG active, (frequency range limit)
The measuring range is exactly bounded by
the selected frequency-measuring-range-limit.
When exceeding or shortfalling of the limit the
device will display the lower or upper display-
range-limit.
[e.g. for humidity: when shortfalling or ex-
ceeding the device will display 0% or 100%]
Hint: When exceeding the maximum range limit (10kHz) independently from the limit setting an error message
will be displayed (“Err.1“).
- Press button 1 to validate your selection. The display shows “Li“ again.
- When pressing button 1 again, the display will show “FiLt“ (Filter = digital filter).
- Use button 2 and button 3 to select the desired filter value [in sec.].
Usable values: 0.01 ... 2.00 sec.
Explanation: this digital filter is a digital replica of a low pass filter.
- Press button 1 to validate your selection. The display shows “FiLt“ again.
Now your device is adjusted to your signal source. The only thing you left do is to adjust the outputs of the
device.
- When pressing button 1 again, the display will show “outP“. (Output)
For configuring the outputs of the GIA20EB, please follow the instructions shown in chapter 4.8.
4.5. Measuring of rotation speed (TTL, switching-contact)
This chapter describes how to configure the device for measuring rotation speed.
This instruction demands that you selected “rPn“ as your desired input type like it is explained in chapter 4.1.
The device has to display “InP“.
- When pressing button 1 the device will display “SEnS“.
- Use button 2 or button 3 (middle or right button) to select the desired input signal.
Display Input-signal Notes
ttL TTL-signal
nPn Switching contact, NPN
For direct connection of a passive switching
contact (e.g. push button, relay) or transmitter
with NPN output.
A pull-up-resistor is internally connected.
Hint: when using push-buttons or relays, they must
be bounce-free!
PnP Switching contact, PNP
For direct connection of a transmitter with
PNP output.
A pull-down-resistor is internally connected.
Hint: For the connection of a frequency-transmitter, please follow the instructions given in chapter 3.3.6
When connecting a switching-contact-transmitter with increased frequency range (= with external circuitry)
you have to select TTL as your desired input signal.
- Press button 1 to validate your selected input signal. The display shows “SEnS“ again.
- When pressing button 1 again, the display will show “diu“ (divisor).
- Use button 2 and 3 to select your desired divisor.
Set the divisor to the pulses per rotation the transmitter supplies.
- Press button 1 to validate your selection. The display shows “diu“ again.
- When pressing button 1 again, the display will show “dP“ (decimal point).

E31.0.02.6C-04 Manual for connection and operation of the GIA 20 EB page 16 of 27
- Use button 2 and button 3 to select the desired decimal point position.
Use the decimal point position to change the resolution of your measurement. The more the decimal
point position is on the left, the finer the resolution will become. Please note that you lower the maximum
value that can be displayed, either.
Example: your engine runs with 50 rotations per minute.
With no decimal point the device will display something like 49 – 50 – 51, the maximum value that can
be displayed is 9999 rotations per minute.
With the decimal point position on the left e.g. XX.XX the device will display something like 49.99 –
50.00 – 50.01, but the maximum value that can be displayed is 99.99 rotations per minute.
- Press button 1 to validate your selection. The display shows “dP“ again.
Now your device is adjusted to your signal source. The only thing left to do is to adjust the outputs of the
device.
- When pressing button 1 again, the display will show “outP“. (Output)
For configuring the outputs of the GIA20EB, please follow the instructions shown in chapter 4.8.
4.6. Up-/Downwards counter (TTL, switching-contact)
The upwards counter starts counting upwards from 0 according to its settings.
The downwards counter starts counting downwards from the upper value that had been selected.
Feature: The current value of the counter can be reset anytime by connecting pin 8 to GND (e.g. pin 7).
The counter starts from its beginning as you disconnect pin 8 and pin 7.
The current counter value won‘t be lost if the voltage supply is disconnected. After restarting the
counter starts from this value.
This chapter describes how to configure the device as a counter.
This instruction demands that you selected “Co.up“ or “Co.dn“ as your desired input type like it is explained
in chapter 4.1.The device has to display “InP“.
- When pressing button 1 the display will show “SEnS“.
- Use button 2 or button 3 (middle or right button) to select the desired input signal.
Display Input-signal Note
ttL TTL-signal
nPn Switching contact, NPN
For direct connection of a passive switching
contact (e.g. push button, relay) or transmitter
with NPN output.
A pull-up-resistor is internally connected.
Hint: when using push-buttons or relays, they must
be bounce-free!
PnP Switching contact, PNP
For direct connection of a transmitter with
PNP output.
A pull-down-resistor is internally connected.
Hint: For connecting a frequency-transmitter, please follow the instructions given in chapter 3.3.7
When connecting a switching-contact-transmitter with increased frequency range (= with external circuit)
you have to select TTL as your desired input signal.
- Press button 1 to validate your selected input signal. The display shows “SenS“ again.
- When pressing button 1 again, the device will be displaying “EdGE“ (signal edge).
- Use button 2 or button3 (middle or right button) to select the desired signal edge.
Display Signal edge Note
PoS Positive The counter is triggered on the positive (ris-
ing) edge.
nEG Negative The counter is triggered on the negative (fal-
ling) edge.
- Press button 1 to validate your selection, the display shows “EdGE“ again.

E31.0.02.6C-04 Manual for connection and operation of the GIA 20 EB page 17 of 27
- When pressing button 1 again, the display will show “diu“ (divisor = pre-scaling factor).
- Use button 2 and button 3 to select the desired pre-scaling factor.
The incoming pulses will be divided with the selected pre-scaling factor, after that they will be transmitted to the de-
vice for further processing.
By this factor you can adapt the device to your transmitter or select a pre-scaling factor for large values
Example 1: Your flow rate transmitter supplies 165 pulses per litre. When setting a pre-scaling factor of 165 every
165th pulse (so 1 pulse per litre) will be used for further processing.
Example 2: Your transmitter is supplying about 5 000 000 pulses during the measurement, which exceeds the limit
of the GIA20EB. But when setting a pre-scaling factor of 1000 only every 1000th pulse is used for further process-
ing. So you only got a value 5000 which won’t exceed the limit of the GIA20EB.
- Press button 1 to validate your selection. The display shows “diu“ again.
- Press button 1 again. The display shows “Co.Hi“ (counter high = upper counting range limit).
- Use button 2 and button 3 to select the maximum pulse-count (after pre-scaling factor) for the counting
process.
Example: Your flow rate transmitter is supplying 1800 pulses per litre, you selected a pre-scaling factor of 100 and
you are expecting a maximum flow rate of 300 litres during the measurement. With a pre-scaling factor of 100 se-
lected, you will get 18 pulses per litre. With a maximum flow rate of 300 litres you will be getting a pulse count of 18
* 300 = 5400.
- Press button 1 to validate your selection. The display shows “Co.Hi“ again.
- When pressing button 1 again, the device will be displaying “dP“ (decimal point).
- Use button 2 and button 3 to select the desired decimal point position.
- Press button 1 to validate your selected decimal point position. The display shows “dP“ again.
- Press button 1 again. The display shows “di.Hi“ (display high = upper display range limit).
- Use button 2 and button 3 to set the value to be displayed when the maximum pulse (setting of co.Hi)
count is reached.
Example: Your flow rate transmitter is supplying 1800 pulses per litre and you are expecting a maximum flow rate of
300 litres. You selected a pre-scaling factor of 100 and a counter range limit of 5400. When wanting a resolution of
0.1 litres shown in the display of the device you would have to set the decimal point position to ---.- and a display
range limit of 300.0.
- Press button 1 to validate your selection. The display shows “di.Hi“ again.
- Press button 1. The display will show “Li“ (Limit = measuring range limit).
- Use button 2 and button 3 to select the desired measuring range limit (counter range limit).
Display Measuring range limit Note
off Inactive
Exceeding of the counter range is tolerable
until you reach the maximum measuring
range limit.
on.Er active, (error indicator)
The measuring range is exactly bounded by
the selected counter-range-limit. When ex-
ceeding or shortfalling of the limit the device
will display an error message.
on.rG active, (measuring range limit)
The measuring range is exactly bounded by
the selected counter-range-limit. When ex-
ceeding or shortfalling of the limit the device
will display the upper counter-range-limit or 0
Hint: The lower counter-range-limit (for configured downwards counter) is fixed to 0.
- Press button 1 to validate your selection. The display shows “Li“ again.
Now your device is adjusted to your signal source. The only thing left to do is to adjust the outputs of the
device.
- When pressing button 1 again, the display will show “outP“. (Output)
For configuring the outputs of the GIA20EB, please follow the instructions shown in chapter 4.8.

E31.0.02.6C-04 Manual for connection and operation of the GIA 20 EB page 18 of 27
4.7. Interface mode
When the device is in the interface mode it won’t make any measurements by itself. The value shown in the
device’s display is sent via serial interface. But the switching and alarm functions of the displayed value are
still available.
The
EASY BUS -Address of the device needed for the communication can be set manually with the device itself
or with the help of an
EASY BUS -software (like EBxKonfig). Please note, when carrying out an EASY BUS -
system-initialisation the device’s address will be reset automatically.
This chapter describes how to configure the device as an EASYBUS-display.
This instruction demands that you selected “SEri“ as your desired input type like it is explained in chapter 4.1
The device has to display “InP“.
- When pressing button 1 again, the device will display “Adr“ (address).
- Use button 2 and button 3 to select the desired address [0 ... 239] of the device.
- Press button 1 to validate the selected device address. The display shows “Adr“ again.
You don’t need any further configuration but the outputs.
- When pressing button 1 again, the device will be displaying “outP“ (output).
For configuring the outputs please follow the instructions given in chapter 4.8.
4.8. Selection of the output function
- After configuration of the input (chapter 4.2 – 4.7) you have to select the output function.
The display shows “outP“ (output).
- Use button 2 and button 3 (middle or right button) to select the desired output-function.
Function
Description Output 1 Output 2
To select as
output See chapter
No output, device is used
as display unit --- --- no --
2-point-controller digital
2-point-control-
ler
--- 2P 5.1
3-point-controller digital
2-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 “outP“ again.
Depending on your output function setting, it may be possible that one or more settings described below
won’t be available.

E31.0.02.6C-04 Manual for connection and operation of the GIA 20 EB page 19 of 27
- When pressing button 1 again, the device will display “1.dEL“ (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 “1.dEL“ again.
- When pressing button 1 again, the device will display “1.out“ (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 “ 1.out“ again.
- When pressing button 1 again, the device will display “1.Err“ (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 “1.Err“ 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:
“2.dEL“ (delay of output 2), “2.out“ (kind of output 2), “2.Err“ (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 “A.out“ (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 ac-
tive! In case of an alarm-condition the output will become inactive!
Note: When using the output function “min-/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 “ A.out“ again.
Depending on the selected output function you have to make the settings for switching and alarm points.
See description in chapter „switchpoints 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)

E31.0.02.6C-04 Manual for connection and operation of the GIA 20 EB page 20 of 27
5. Switchpoints and alarm-boundaries
Please note: The settings of the switchpoints 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!
Please note: The settings of the switchpoints and alarm-boundaries will automatically be reset to factory
default when any changes for the settings “InP”, “SEnS“ or “Unit“ had been made!
Hint: The buttons 2 and 3 are featured with a ‘roll-function‘. 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 switchpoints 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 fur-
ther information.
Function
Description Output 1 Output 2
Selected
as output Go on in chapter
No output, device is used
as displaying unit --- --- no No function call
possible
2-point-controller digital
2-point-controller --- 2P 5.1
3-point-controller digital
2-point-controller
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, individ-
ual max-alarm min-alarm AL.F2 5.3
5.1. 2-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 “2P“ or “3P“ 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 “1.on“ (turn-on-point of output 1).
- Use button 2 and button 3 to set the desired value, the device’s output 1 should be turning on.
- Press button 1 to validate your selection. The display shows “1.on“ again.
- When pressing button 1 again, the device will be displaying “1.off“. (turn-off-point of output 1)
- Use button 2 and button 3 to set the desired value, the device’s output 1 should be turning off.
- Press button 1 to validate your selection. The display shows “1.off“again.
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 “1.on“ to 120°C and the turn-off-point to
“122°C“. 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 ‘2-point-controller‘ you finished configuring your device. Press button 1 to switch over to dis-
play the measuring value.
When selected ‘3-point-controller‘ please follow the instructions given below.
Button 1 Button 2 Button 3