Dewetron DAQP-MULTI Product manual

TECHNICAL REFERENCE MANUAL
DAQP-MULTI /-THERM Module
WELCOME TO
THE WORLD OF
DEWETRON!
Congratulations on your new device! It
will supply you with accurate, complete
and reproducible measurement results
for your decision making.
Look forward to the easy handling and
the flexible and modular use of your
DEWETRON product and draw upon
more than 30 years of DEWETRON
expertise in measurement engineering.
ISO9001
EN ISO 14001
THE MEASURABLE DIFFERENCE.

Copyright © DEWETRON GmbH
This document contains informaon which is protected by copyright. All rights are reserved. Reproducon,
adaptaon, or translaon without prior wrien permission is prohibited, except as allowed under the copyright
laws.
All trademarks and registered trademarks are acknowledged to be the property of their owners.

3
Notice
General Information, Safety Instructions
The information contained in this document is subject to change without notice.
DEWETRON GmbH (DEWETRON) shall not be liable for any errors contained in this document.
DEWETRON MAKES NO WARRANTIES OF ANY KIND WITH REGARD TO THIS DOCUMENT, WHETHER
EXPRESS OR IMPLIED. DEWETRON SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. DEWETRON shall not be liable for
any direct, indirect, special, incidental, or consequential damages, whether based on contract, tort, or any
other legal theory, in connection with the furnishing of this document or the use of the information in this
document.
Warranty Information:
A copy of the specic warranty terms applicable to your DEWETRON product and replacement parts can be
obtained from your local sales and service o󰀩ce.
Restricted Rights Legend:
Use austrian law for duplication or disclosure.
DEWETRON GmbH
Parkring 4
8074 Grambach
Austria
Printing History:
Please refer to the page bottom for printing version.
Copyright © DEWETRON GmbH.
This document contains information which is protected by copyright. All rights are reserved. Reproduction,
adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright
laws.
All trademarks and registered trademarks are acknowledged to be the property of their owners.
450134 • DAQP/HSI/PAD Modules • Technical Reference Manual • Printing version 2.3.4 • November 18, 2020

4
Notice
Safety symbols in the manual
Indicates hazardous voltages.
WARNING Calls attention to a procedure, practice, or condition that could cause bodily
injury or death.
CAUTION Calls attention to a procedure, practice, or condition that could possibly cause
damage to equipment or permanent loss of data.
WARNINGS
The following general safety precautions must be observed during all phases of operation, service, and
repair of this product. Failure to comply with these precautions or with specic warnings elsewhere in this
manual violates safety standards of design, manufacture, and intended use of the product. DEWETRON
Elektronische Messgeraete Ges.m.b.H. assumes no liability for the customer’s failure to comply with these
requirements.
All accessories shown in this document are available as option
and will not be shipped as standard parts.

5
Safety Instructions
Safety instructions for DEWETRON amplifiers
The DEWETRON data acquisition systems and ampliers may only be installed by experts.
Read your manual carefully before operating.
Observe local laws when using the ampliers.
Ground the equipment: For Safety Class 1 equipment (equipment having a protective earth terminal), a
non interruptible safety earth ground must be provided from the mains power source to the product input
wiring terminals or supplied power cable.
DO NOT operate the product in an explosive atmosphere or in the presence of ammable gases
or fumes.
DO NOT operate damaged equipment: Whenever it is possible that the safety protection features built
into this product have been impaired, either through physical damage, excessive moisture, or any other
reason, REMOVE POWER and do not use the product until safe operation can be veried by service-
trained personnel. If necessary, return the product to a DEWETRON sales and service o󰀩ce for service
and repair to ensure that safety features are maintained.
Keep away from live circuits: Operating personnel must not remove equipment covers or shields.
Procedures involving the removal of covers or shields are for use by service-trained personnel only.
Under certain conditions, dangerous voltages may exist even with the equipment switched o󰀨. To avoid
dangerous electrical shock, DO NOT perform procedures involving cover or shield removal unless you
are qualied to do so.
No modications are allowed at the ampliers.
DO NOT service or adjust alone. Do not attempt internal service or adjustment unless another person,
capable of rendering rst aid and resuscitation, is present.
DO NOT substitute parts or modify equipment: Because of the danger of introducing additional hazards,
do not install substitute parts or perform any unauthorized modication to the product. Return the product
to a DEWETRON sales and service o󰀩ce for service and repair to ensure that safety features are
maintained.
DO NOT touch internal wiring!
DO NOT use higher supply voltage than specied!
Use only original plugs and cables for harnessing.
Safety of the operator and the unit depend on following these rules.
450134 • DAQP/HSI/PAD Modules • Technical Reference Manual • Printing version 2.3.4 • November 18, 2020

6
Support
For any support please contact your local distributor rst or DEWETRON directly.
For Asia and Europe, please contact:
DEWETRON GmbH
Parkring 4
8074 Grambach
AUSTRIA
Tel.: [phone]
Fax: [phone]
Email: [email protected]
Web: http://www.dewetron.com
The telephone hotline is available Monday to Friday between 08:00 and 12:00 CET (GMT -1:00) and Monday
to Thursday between 13:00 and 17:00 CET.
For the Americas, please contact:
DEWETRON, Inc.
2850 South County Trail, Unit 1
East Greenwich, RI 02818
U.S.A.
Tel.: [phone]
Toll-free: [phone]
Fax: [phone]
Email: [email protected]
Web: http://www.dewetron.us
The telephone hotline is available Monday to Friday between 08:00 and 17:00 GST (GMT +5:00)

12345
6789
7
General Module Information
9-pin male SUB-D connector
Interface pin assignment:
1 Module output (±5 V)
2 RS-485 (A)
3 RS-485 (B)
4 GND
5 +9 V power supply
6 +12 V power / sensor supply
7 Module input (from D/A
converter of the A/D board)1)
8 reserved
9 -9 V power supply
1) Triggerout at DAQP-FREQ-A
Calibration information
All DEWETRON modules are calibrated at 25 °C after a warmup time of 30 minutes and meet their
specications when leaving the factory.
The time interval for recalibration depends on environmental conditions. Typically, the calibration should be
checked once a year.
Calibration certicates are available from DEWETRON as an option. DEWETRON o󰀨ers two types:
ISO traceable DEWETRON certicate
Calibration certicate according to ÖKD (equivalent to DKD)
This manual contains no calibration information. For self calibration, there is a separate calibration kit for the
DAQ series modules available. The CAL-KIT contains the required cables, software and instructions.
General module specifications
Module dimensions: 20 x 65 x 105 mm (0.79 x 2.56 x 4.13 in.)
(W x H x D without front cover and connectors)
Frontcover: 20 x 87 x 2 mm (0.79 x 3.43 x 0.08 in.)
(W x H x D without connector)
Environmental:
Temp. range storage: -30 °C to +85 °C (-22 °F to 185 °F)
Temp. range operating: -5 °C to +60 °C (23 °F to 140 °F)
Relative humidity
(MIL202): 0 to 95 % at 60 °C, non-condensing (unless otherwise noticed)
RFI susceptibility: ±0.5 % span error at 400 MHz, 5 W, 3 m
All specications within this manual are valid at 25 °C!
All modules are produced according ISO9001 and ISO14001.
Module connectors
Frontpanel connector: Accessable to the user. The connector type and pin assignment varies
from module to module. Detailed pin assignment of each module is
shown in the appropriate module description.
Rear connector: 9-pin male SUB-D, interface to the DEWE-System, not accessable to the user.
HSI/DAQx and PAD module
rear view
450134 • DAQP/HSI/PAD Modules • Technical Reference Manual • Printing version 2.3.4 • November 18, 2020

DEWETRON
data acquisition
system
RS-232/485
conversion on
DEWETRON-
motherboard
DAQx or PAD
module
RS-232
interface
RS-485
businterface
8
RS-232/485 interface
HSI/DAQP modules can be congured via
RS-485 interface, PAD modules require
this interface for all data transfers.
For all DEWETRON systems, an internal
RS-232/485 converter is available
(standard with DEWE-800, -2000, -2500, -3000, -4000, -5000 series systems). This converter allows
communication with HSI/DAQP and PAD modules.
To communicate with the modules, the RS-232 interface has to be set to the following parameters:
baud rate: 9600 bps
data bits: 8
parity: no parity
stop bits: 1
handshake: not required
HSI/DAQP module configuration
1. Push button selection
All ranges and lters can be selected directly by pressing the push buttons on the module. Approx. 15 sec.
after changing range and / or lter, the range and lter information is stored in an EEPROM. This procedure
increases the livetime of the EEPROM.
The current input range setting is shown all the time by LED. To change the range just press RANGE button
a few times until the required range is displayed.
To see the current lter setting just press the FILTER button once. The corresponding LED is ashing for
approx. 3 seconds. Within this time, the lter can be selected by pressing the FILTER button again. Approx.
3 seconds after the last key activity, the information will be stored, the LED stops ashing and shows the
input range again.
CAUTION: Power loss during this time leaves the module in the former settings.
2. RS-232/485 programming
All ranges and lters can also be selected via RS-232/485 interface. All new DEWE-800, -2000, -2500,
-3000, -4000, -5000 series systems are prepared as a standard to work with HSI/DAQP modules.
The easiest way to change the conguration is to use the DEWECong software, which comes as a standard
with the DEWETRON data acquisition system.
Detailed information about HSI/DAQP modules programming for customer applications is available in the
DEWE-Modules Programmers Reference Manual.
CAUTION: All range and lter changes which are done via RS-232/485 interface are not stored in the
EEPROM of the HSI/DAQP modules! You have to store this information in a separat initialisation le to
keep settings information for next system start!
PAD module communication
All PAD modules are only working through the RS-232/485 interface. All new DEWE-800, -2000, -2500,
-3000, -4000, -5000 series systems are prepared as a standard to work with PAD modules. The easiest
way to change the conguration is to use the DEWECong software, which comes as a standard with the
DEWETRON data acquisition system.
Detailed information about PAD modules programming for customer applications is available in the
DEWE-Modules Programmers Reference Manual.
General Module Information

9
DAQP-MULTI / DAQP-THERM
DAQP-MULTI DAQP-THERM
Isolated multifunctional amplifier
Input ranges: Thermocouple, RTD, Resistance, Voltage,
Constant current supplied Bridge
Bandwidth: 3 kHz
Filter: 6 programmable low pass lter (3 Hz to 3 kHz) and
Programmable lter order (2nd, 4th, 6th, 8th)
Output: Free programmable linearized voltage output
Module specifications
DAQP-MULTI / DAQP-THERM
Input types High speed thermocouple (TC)
High speed Resistance Temperature Detector (RTD); voltage; resistance; bridge with constant
current excitation
Thermocouple
Type K, J, T, R, S, N, E, B, L, C, U, others on request
Range Min. to max. of the input range is freely programmable within the full thermocouple input span
CJC absolute accuracy ±0.3 °C
CJC stability 0.03 °C/°C ambient temperature change
CJC equilibrium time 5 minutes
Accuracy Typical 0.4 °C for type K including CJC error;
details see table „Input ranges and detailed speci cations“.
Linearization DSP based linearization
Nonlinearity < 0.01°C
Open thermocouple detection 100 MΩ pull up; software selectable
Connector Mini thermocouple socket with integrated cold junction compensation sensor
RTD
Type Pt100, Pt200, Pt500, Pt1000, Pt2000, others on request
Range Min. and max. of the input range is freely programmable within the full RTD input span
Constant current Pt100: 1 mA; Pt200, Pt500: 0.5 mA; Pt1000, Pt2000: 0.2 mA
Accuracy Typical accuracy 0.2 °C for Pt100,
details see table „Input ranges and detailed speci cation“.
Linearization DSP based linearization
Nonlinearity < 0.01 °C
Voltage
Input range ±5 mV, ±10 mV, ±20 mV, ±50 mV, ±100 mV, ±200 mV, ±500 mV, ±1 V, ±2 V, ±5 V,
freely programmable within ±5V
Accuracy ±5 mV to ±100 mV Range: 0.02 % of reading ±0.02 % of Range ±5 µV
±0.1 V to ±5V Range: 0.02 % of reading ±0.02 % of Range ±200 µV
O󰀨 set drift Typical ±0.3 µV/°K ±10 ppm of range/°K
Gain drift Typical 15 ppm/°K
Input impedance > 100 MΩ (power o󰀨 : 50 kΩ)
Input noise 8 nV * √Hz
Resistance
Range 1, 3, 10, 30, 100, 300, 1k, 3k, 10k, 30k, 100k, 1M, freely programmable between 1 Ω and 1 MΩ
Accuracy According to table „Input ranges and detailed speci cations“.
Drift Typical 15 ppm/°K
Constant current From 5 µA to 5 mA, depending on range
Bridge
Range 0.5, 1, 2, 5, 10, 20, 50, 100, 200, 500, 1000 mV/mA
Accuracy 0.02 % of reading ±0.01 % of Range ±5 µV
O󰀨 set drift typical ±0.3 µV/°K ±10 ppm of range/°K
Gain drift typical 15ppm/°K
Input impedance > 100 MΩ (power o󰀨 : 50 kΩ)
Input noise 8 nV * √Hz
Automatic bridge balance ±200 % of range
Supported sensors 4 wire full bridge
Connector D-SUB-9; DEWETRON bridge type pinout
Excitation current
Excitation current 1, 2, 4 mA; software programmable
Accuracy 0 to 200 µA: 0.02 % ±50 nA
200 µA to 5 mA: 0.02 % ±1 µA
Drift 15 ppm/°K
Compliance voltage 15 V
Source resistance >150 kΩ
Bandwidth (-3dB) 3 kHz
Filters 3 Hz, 10 Hz, 30 Hz, 100 Hz, 300 Hz, 1 kHz, 3 kHz
Filter characteristics Butterworth or Bessel, 2nd, 4th, 6th, 8th order programmable
Group delay 300 µs with highest lter
Typ. CMRR
50 Hz
1 kHz
3 kHz
0 to 100 mV range 100 mV to 5 V range Thermocouple input
125 105 160
120 100 135
115 95 130
Isolation 1 kVRMS
1)
Over voltage protection ±100 V between inputs (clamping voltage: 5 V @ TC input; 11 V @ Voltage input)
Output voltage ±5 V; 0 to 5V; (±10 V and 0 to 10 V with special DEWE-30)
Output resistance 22 Ω
Output current Max. 5 mA
Output protection Continuous short to ground
RS-485 interface Yes
RS-485 data output Yes
Supported TEDS chips DS2406, DS2430A, DS2431, DS2432, DS2433,DS28EC20
MSI support No
Power supply voltage ±9 VDC (±5 %)
Power consumption 1 W typical
1) Although the rated input voltage is 33 VRMS, 46,7 VPEAK or 70 VDC according to EN-61010-1 and EN-61010-2-30, the galvanic isolation for input, excitation and TEDS
has been tested with 1 kVRMS for 1 min.
= DAQP-MULTI support only
continued on page 78
450134 • DAQP/HSI/PAD Modules • Technical Reference Manual • Printing version 2.3.4 • November 18, 2020

10
DAQP-MULTI / DAQP-THERM
continued from page 77
Front panel control
LED indication:
Power LED: This LED is always on when the module is supplied.
Status LED: This LED has three functions:
It is ashing three times when the module receives a valid command.
It displays an input overow if it ashes with the duty cycle
800 ms on / 200 ms o󰀨. In thermocouple mode this will indicate an open
thermocouple detection.
It displays an internal error if it ashes with the duty cycle
200 ms on / 800 ms o󰀨.
Push button operation:
Module readressing: Push the ID button for allowing the software to change the address.
Module reset: Press the ID button during power on, and keep it pressed for at least 5 seconds.
The module will reset to default settings.
Address: 0
Baud rate: 9600 bps
Module setup: Load backup setup and calibration data (last setup will be overwritten)
= DAQP-MULTI support only
DAQP-MULTI / DAQP-THERM
Input types High speed thermocouple (TC)
High speed Resistance Temperature Detector (RTD); voltage; resistance; bridge with constant
current excitation
Thermocouple
Type K, J, T, R, S, N, E, B, L, C, U, others on request
Range Min. to max. of the input range is freely programmable within the full thermocouple input span
CJC absolute accuracy ±0.3 °C
CJC stability 0.03 °C/°C ambient temperature change
CJC equilibrium time 5 minutes
Accuracy Typical 0.4 °C for type K including CJC error;
details see table „Input ranges and detailed specications“.
Linearization DSP based linearization
Nonlinearity < 0.01°C
Open thermocouple detection 100 MΩ pull up; software selectable
Connector Mini thermocouple socket with integrated cold junction compensation sensor
RTD
Type Pt100, Pt200, Pt500, Pt1000, Pt2000, others on request
Range Min. and max. of the input range is freely programmable within the full RTD input span
Constant current Pt100: 1 mA; Pt200, Pt500: 0.5 mA; Pt1000, Pt2000: 0.2 mA
Accuracy Typical accuracy 0.2 °C for Pt100,
details see table „Input ranges and detailed specication“.
Linearization DSP based linearization
Nonlinearity < 0.01 °C
Voltage
Input range ±5 mV, ±10 mV, ±20 mV, ±50 mV, ±100 mV, ±200 mV, ±500 mV, ±1 V, ±2 V, ±5 V,
freely programmable within ±5V
Accuracy ±5 mV to ±100 mV Range: 0.02 % of reading ±0.02 % of Range ±5 µV
±0.1 V to ±5V Range: 0.02 % of reading ±0.02 % of Range ±200 µV
O󰀨set drift Typical ±0.3 µV/°K ±10 ppm of range/°K
Gain drift Typical 15 ppm/°K
Input impedance > 100 MΩ (power o󰀨: 50 kΩ)
Input noise 8 nV * √Hz
Resistance
Range 1, 3, 10, 30, 100, 300, 1k, 3k, 10k, 30k, 100k, 1M, freely programmable between 1 Ω and 1 MΩ
Accuracy According to table „Input ranges and detailed specications“.
Drift Typical 15 ppm/°K
Constant current From 5 µA to 5 mA, depending on range
Bridge
Range 0.5, 1, 2, 5, 10, 20, 50, 100, 200, 500, 1000 mV/mA
Accuracy 0.02 % of reading ±0.01 % of Range ±5 µV
O󰀨set drift typical ±0.3 µV/°K ±10 ppm of range/°K
Gain drift typical 15ppm/°K
Input impedance > 100 MΩ (power o󰀨 : 50 kΩ)
Input noise
8 nV * √Hz
Automatic bridge balance ±200 % of range
Supported sensors 4 wire full bridge
Connector D-SUB-9; DEWETRON bridge type pinout
Excitation current
Excitation current 1, 2, 4 mA; software programmable
Accuracy 0 to 200 µA: 0.02 % ±50 nA
200 µA to 5 mA: 0.02 % ±1 µA
Drift 15 ppm/°K
Compliance voltage 15 V
Source resistance >150 kΩ
Bandwidth (-3dB) 3 kHz
Filters 3 Hz, 10 Hz, 30 Hz, 100 Hz, 300 Hz, 1 kHz, 3 kHz
Filter characteristics Butterworth or Bessel, 2nd, 4th, 6th, 8th order programmable
Group delay 300 µs with highest  lter
Typ. CMRR
50 Hz
1 kHz
3 kHz
0 to 100 mV range 100 mV to 5 V range Thermocouple input
125 105 160
120 100 135
115 95 130
Isolation 1 kVRMS
1)
Over voltage protection ±100 V between inputs (clamping voltage: 5 V @ TC input; 11 V @ Voltage input)
Output voltage ±5 V; 0 to 5V; (±10 V and 0 to 10 V with special DEWE-30)
Output resistance 22 Ω
Output current Max. 5 mA
Output protection Continuous short to ground
RS-485 interface Yes
RS-485 data output Yes
Supported TEDS chips DS2406, DS2430A, DS2431, DS2432, DS2433,DS28EC20
MSI support No
Power supply voltage ±9 VDC (±5 %)
Power consumption 1 W typical
1) Although the rated input voltage is 33 VRMS, 46,7 VPEAK or 70 VDC according to EN-61010-1 and EN-61010-2-30, the galvanic isolation for input, excitation and TEDS
has been tested with 1 kVRMS for 1 min.

11
DAQP-MULTI / DAQP-THERM
Block diagram
The base block diagram of the DAQP-MULTI and the DAQP-THERM gives an idea of the internal structure.
EXC+
IN+
EXC-
EXC-
9-pin DSUB
INPUT
CONNECTORS
9-pin DSUB
OUTPUT
CONNECTOR
RTD & Voltage input (DAQP-MULTI)
100M
TC+
TC-
INPUT
CONNECTORS
Thermocouple input (DAQP-THERM)
µV Amplifier
gain 64
Differential
amplifier
CJC sensor
with 0.01°
resolution
ADC
24 bit
125 kS/s
Digital
Signal
Processor
DAC
16 bit
250 kS/s
Input
protection
Sensor fault detection
Antialiasing
filter
IN-
DAQN-RTD
compatibility
jumper
GNDi-
TEDS-
GNDi
Input
protection
15 V compliance
voltage
programmable
constant current
x 1
x 50
1
2
7
8
6
4
9
1
Micro
controller
Vout
GND
RS485 A
RS485 B
+9 V
DC
DC
GNDi -9 V
4
2
3
5
9
1000 V RMS
isolation barrier
Amplifier description
The DAQP-MULTI consists of two separate input ampliers. The rst one is optimized for thermocouple
measurement. Its main properties are extremely low o󰀨set drift and noise. The sensor is connected to a mini
thermocouple connector with copper contacts. A precision temperature sensor with a resolution of 0.01 °C
measures the temperature directly on the junction between the copper contact and the TC material of the
sensor connector. This minimizes the error due to the CJC and allows the connection of all TC types.
The second input combines a programmable constant current source and a di󰀨erential input amplier on a
standard DSUB9 connector. It allows all kind of resistance measurement as well as voltage measurement.
Bridge sensors using current excitation are also supported. The small input o󰀨set drift could be eliminated by
using the internal short circuit function.
The conditioned analog signal passes a low pass lter and then comes to an aliasing free analog to digital
converter. The digital data stream is isolated before getting into a high speed Digital Signal Processor. It
allows the complete linearization and ltering with a very low signal delay. Linearization tables are stored
with up to 512 points which minimizes the nonlinearity error for thermocouples and RTD to less than 0.01°C.
The complete data processing internally runs at 125 kS/sec. The output digital to analog converter runs at
the double speed, 250 kS/sec. That improves the signal quality on the analog output. The measured value
is also available on the RS485 as an ASCII value. That allows using the module also as a full measurement
instrument without AD-Card or analog wiring.
450134 • DAQP/HSI/PAD Modules • Technical Reference Manual • Printing version 2.3.4 • November 18, 2020

12
DAQP-MULTI / DAQP-THERM
Thermocouple accuracy including CJC error
Type Standard Input range Accuracy
min
[°F] °C
max
[°F] °C
-270 to -200 °C
-454 to -328 °F
[°F] °C
-200 to -100 °C
-328 to -148 °F
[°F] °C
-100 to 0 °C
-148 to 32 °F
[°F] °C
0 to 100 °C
32 to 212 °F
[°F] °C
100 to 400 °C
212 to 752 °F
[°F] °C
400 to 1000 °C
752 to 1832 °F
[°F] °C
>1000 °C
> 1832 °F
[°F] °C
K DIN EN 60584-1 [-454] -270 [2501] 1372 [17.41] 9.67 [1.82] 1.01 [1.92] 0.51 [0.70] 0.39 [0.79] 0.44 [1.08] 0.6 [1.39] 0.77
J DIN EN 60584-1 [-346] -210 [2192] 1200 [1.76] 0.98 [1.57] 0.87 [0.85] 0.47 [0.67] 0.37 [0.76] 0.42 [0.92] 0.51 [1.01] 0.56
T DIN EN 60584-1 [-454] -270 [752] 400 [11.38] 6.32 [1.78] 0.99 [0.99] 0.55 [0.70] 0.39 [0.61] 0.34 - -
R DIN EN 60584-1 [-58] -50 [3200] 1760 - - [2.30] 1.28 [1.60] 0.89 [1.17] 0.65 [0.95] 0.53 [1.28] 0.71
S DIN EN 60584-1 [-58] -50 [3200] 1760 - - [2.07] 1.15 [1.57] 0.87 [1.21] 0.67 [1.04] 0.58 [1.39] 0.77
N DIN EN 60584-1 [-454] -270 [2372] 1300 [23.81] 13.23 [2.02] 1.12 [0.97] 0.54 [0.67] 0.42 [0.70] 0.39 [0.86] 0.48 [1.03] 0.57
E DIN EN 60584-1 [-454] -270 [1832] 1000 [11.00] 6.11 [1.06] 0.87 [0.88] 0.49 [0.65] 0.36 [0.61] 0.34 [0.86] 0.48 -
L DIN 43710 [32] 0 [1652] 900 - - - [0.65] 0.36 [0.74] 0.41 [0.77] 0.43 -
C ASTM E988-96 [32] 0 [4190] 2310 - - - [0.88] 0.49 [0.86] 0.48 [1.06] 0.59 [1.69] 0.94
U DIN 43710 [-328] -200 [1112] 600 [1.67] 0.93 [1.67] 0.93 [0.99] 0.55 [0.70] 0.39 [0.63] 0.35 [0.56] 0.31 -
B DIN EN 60584-1 [32] 0 [3308] 1820 - - - [54.56] 30.31 [5.47] 3.04 [1.40] 0.78 [0.92] 0.51
= calculated speci cations, not very ed.
Input ranges and detailed specifications1)
RTD
Type Standard Input range Current Accuracy
min
[°F] °C
max
[°F] °C mA
-200 to -100 °C
-328 to -148 °F
[°F] °C
-100 to 0 °C
-148 to 32 °F
[°F] °C
0 °C to fullscale
32 °F to fullscale
(% of reading + [°F] °C)
Pt100 (385) DIN EN 60751 [-328] -200 [1562] 850 0.2 [0.25] 0.14 [0.37] 0.21 0.07 [0.37] 0.21
Pt200 (385) DIN EN 60751 [-328] -200 [1562] 850 0.1 [0.32] 0.18 [0.48] 0.27 0.10 [0.48] 0.27
Pt500 (385) DIN EN 60751 [-328] -200 [1562] 850 0.2 [0.61] 0.34 [0.75] 0.42 0.09 [0.75] 0.42
Pt1000 (385) DIN EN 60751 [-328] -200 [1562] 850 0.2 [0.39] 0.22 [0.52] 0.29 0.09 [0.52] 0.29
Pt2000 (385) DIN EN 60751 [-328] -200 [1562] 850 0.2 [0.45] 0.25 [0.63] 0.35 0.12 [0.64] 0.36
Pt100 (3926) [-328] -200 [1562] 850 0.2 [0.25] 0.14 [0.37] 0.21 0.07 [0.37] 0.21
Resistance
Range Current Accuracy
[Ω] [mA] [% of reading] [% of range]
1000000 0.005 0.04 1.02
300000 0.015 0.04 0.35
100000 0.05 0.04 0.11
30000 0.1 0.04 0.07
10000 0.1 0.04 0.08
3000 0.2 0.04 0.07
1000 0.5 0.04 0.25
300 1 0.04 0.18
100 1 0.04 0.12
30 2 0.04 0.08
10 4 0.04 0.06
3 5 0.04 0.10
1 5 0.04 0.23
Excitation
[% of reading] [µA]
0 to 200 µA 0,02 0,05
>0.2 to 5 mA 0,02 1
1) All accuracy specications mentioned on this page are 1-year specications.
They are valid for module calibration temperature ±5 °C and 30 to 90 % relative humidity.

13
DAQP-MULTI / DAQP-THERM
Amplifier function
Free programmable module range
Regardless which input mode is selected, the module measurement range is completely free programmable.
Simply by entering the lower and upper limit the amplier adjusts its gain and o󰀨set factors automatically.
The amplier output is scaled to either ±5 V or 0 to 5 V.With the 16-OUT-10 option which is available on
all DEWETRON signals conditioning systems also ±10 V or 0 to 10 V output signals are possible. This is
especially designed for test rig applications. Converting a nonlinear temperature signal from an RTD or a TC
to a linear 0 to 10 V analog output is one of the key features of this amplier.
Filter
The module has 6 selectable low pass lters from 3 Hz to 1 kHz. The lter characteristic could be chosen
between Butterworth and Bessel. Also the lter order could be selected between 2nd ,4th ,6th and 8th order. The
2nd order lter up to 1 kHz is fully compatible to any other DAQP series lter.
Amplifier balance
The amplier balance function allows automatic elimination of all internal amplier o󰀨sets. It switches the
di󰀨erential amplier inputs IN+ and IN- to the internal isolated GND reference point. Then the output o󰀨set
of the module is automatically adjusted to zero for all ranges. All previously stored sensor o󰀨set values are
cleared.
Sensor balance
The DAQP-Multi can automatically balance any sensor o󰀨set up to 200 % of range. Depending on the input
range, also higher o󰀨sets can be balanced (e.g. input range is 100 mV/mA, excitation is 1 mA, o󰀨set can be
balanced up to 5000 %).
Short
Switches the di󰀨erential amplier inputs IN+ and IN- from the input terminals to the internal isolated GND
reference point. With this function the absolute sensor o󰀨set could be determined.
CAL
Applies a high precision internal reference signal with 80% of the full scale value (4.0000 V) to the module
output. This function allows compensating the actual error of the AD-Board, to get the full accuracy of the
DAQP-MULTI.
Open thermocouple detection
The open thermocouple detection of the DAQP-MULTI consists of an 100 MΩ pull-up resistor. That typically
drives a 50 nA current through the sensor which normally does not take e󰀨ect on the measurement, but
is enough to generate an input overow if the sensor breaks. Despite of that small current, there are
sensors available where this current generates a big error. Those sensors are typically non-contact infrared
thermocouples and fast response thermocouples. In that case the open thermocouple detection can simply
be deactivated in the software. Sensors with up to 50 kΩ output impedance could be measured in that way.
CJC
The DAQP-MULTI as well as the DAQP-THERM comes with an integrated cold junction compensation
sensor with an absolute accuracy of ±0.2 °C. In order to archieve this accuracy the sensor has to be
connected for at least 5 minutes to the thermocouple connector (CJC equilibrium time).
CJC CJC
450134 • DAQP/HSI/PAD Modules • Technical Reference Manual • Printing version 2.3.4 • November 18, 2020

14
DAQP-MULTI / DAQP-THERM
TC+
TC -
TC+
TC -
Signal connection
Signal connection
1 EXC +
2 IN +
3 n.c.
4 GNDisolated
5 n.c.
6 reserved for EXC -
7 IN -
8 EXC -
9 TEDS
DAQP-MULTI
DAQP-THERM
Signal connection via D-SUB connector
Signal connection via mini TC connector
Signal connection via mini TC connector
Connector
EXC+
EXC-
TEDS
1
9
8
9-pin SUB-D
4
IN-
IN+
2
7
GNDi
TEDS
Pt100 sensor
Resistance, RTD 2-wire and 4-wire
For resistance and RDT mode the 4-wire connection is recommended. The 2-wire connection will not
compensate the wire resistance.
2-wire connection
4-wire connection

15
DAQP-MULTI / DAQP-THERM
9-pin SUB-D
4
IN-
IN+
2
7
GNDi
V+
Voltage sensor
GND
EXC+
IN+
EXC-
IN-
1
2
8
7
9-pin SUB-D
TEDS
GND
9
4
TEDS
Voltage measurement
Bridge I sensor
Thermocouple sensor
Thermocouple types
Type IEC color code ANSI color code Temperature range
°C [°F]
Alloy combination
+ -
Comments
K green yellow -270 to 1372 [-454 to 2501] Ni CrNi Wide temperature range, most popular calibration
J black black -210 to 1200 [-346 to 2193] Fe CuNi Used in vacuum, reduced and inert atmosphere
T brown blue -270 to 400 [-454 to 752] Cu CuNi Low temperature & cryogenic applications
R orange green -50 to 1760 [-58 to 3214] Pt13Rh Pt High temperature
S orange green -50 to 1760 [-58 to 3214] Pt10Rh Pt High temperature
U orange green -200 to 600 [-328 to 1112] Cu CuNi Also known as RX & SX extension wire.
N rose orange -270 to 1300 [-450 to 2372] NiCrSi NiSi Alternative to type K. More stable at high temp.
E purple purple -270 to 1000 [-454 to 1832] NiCr CuNi Highest EMF change per degree
B grey grey 0 to 1820 [32 to 3308] Pt30Rh Pt6Rh High temperature. Common use in glass industry
L blue -200 to 900 [-328 to 1652] Fe CuNi Similar to type J
C* no standard IEC color red* 0 to 2310 [32 to 4208] W5Re W26Re Highest temperature range
*) no o󰀩 cial symbol or standard designation
Input connector
+
-
Senso
r
450134 • DAQP/HSI/PAD Modules • Technical Reference Manual • Printing version 2.3.4 • November 18, 2020

16
DAQP-MULTI / DAQP-THERM
Notes

C1
L
E
V
M
C
Dipl.-Ing. Roland Jeutter / Managing director
Manufacturer:
Address:
Name of product:
Kind of product:
CE-Certificate of conformity
Graz, April 28, 2010
Place / Date of the CE-marking
DEWETRON GmbH
Parkring 4
8074 Grambach, Austria
Tel.: [phone]
Fax: [phone]
e-mail: [email protected]
http://www.dewetron.com
DEWE-MODULES
Signal conditioning modules
The product meets the regulations of the following EC-directives:
73/23/EEC
"Directive on the approximation of the laws of the Member States relating to electrical
equipment designed for use within certain voltage limits amended by the directive 93/68/
EEC"
89/336/EEC
"Directive on the approximation of the laws of the Member States relating to
electromagnetic compatibility amended by the directives 91/263/EEC, 92/31/EEC, 93/68/
EEC and 93/97/EEC
The accordance is proved by the observance of the following standards:
Safety
Emissions
Immunity
IEC/EN 61010-1:1992/93 IEC 61010-1:1992/300 V CATIII Pol. D. 2
IEC/EN 61010-2-031 IEC 1010-2-031
EN 61000-6-4 EN 55011 Class B
EN 61000-6-2 Group standard
CE-Certificate of conformity
450134 • DAQP/HSI/PAD Modules • Technical Reference Manual • Printing version 2.3.4 • November 18, 2020

C2
Notes