Dewetron DAQP-LA Series Product manual

TECHNICAL REFERENCE MANUAL
DAQP-LA 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)

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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
450134 • DAQP/HSI/PAD Modules • Technical Reference Manual • Printi ng version 2.3.4 • November 18, 2020
DAQP-LA
Isolated current amplifier
30 A current peaks
5 ARMS continuous
6 ranges
300 kHz bandwidth
Signal connection
DAQP-LA-B (-S1): Banana plugs
DAQP-LA-SC: Screw terminals (non-standard version)
Module specifications
DAQP-LA-B DAQP-LA-B-S1
Input resistance (Shunt) 0.1 Ohm 5 Ohm
Shunt inductance <10 nH <10 nH
Input ranges 0.1 A, 0.3 A, 1 A, 3 A, 10 A peak, 30 A peak 2 mA, 6 mA, 20 mA, 60 mA, 200 mA, 0.6 A
Continuous current max. 5 ARMS max. 0.6 A
Peak current 30 A max. 10 ms; 10 A max. 100 ms 3 A max. 10 ms; 1 A max. 100 ms
DC accuracy
100 mA and 300 mA
1 A to 30 A
2 mA and 6 mA
20 mA to 600 mA
±0.05 % of reading ±300 µA
±0.05 % of reading ±0.05 % of range
±0.05 % of reading ±6 µA
±0.05 % of reading ±0.05 % of range
O󰀨 set drift
100 mA and 300 mA
1 A to 30 A
2 mA and 6 mA
20 mA to 600 mA
typ. max.
12 20 µA/°K
20 40 ppm of Range/°K typ. max.
0.24 0.4 µA/°K
20 40 ppm of Range/°K
Gain linearity 0.03 %
Gain drift range Typically 20 ppm/°K (max. 50 ppm/°K)
Long term stability 100 ppm/sqrt (1000 hrs)
Bandwidth (-3 dB) 300 kHz(1)
Filter selection Push button or software
Filters (low pass) 10 Hz, 30 Hz, 100 Hz, 300 Hz, 1 kHz, 3 kHz, 10 kHz, 30 kHz, 100 kHz
Filter characterisitics 10 Hz to 100 kHz: Butterworth or Bessel 40 dB/dec (2nd order; ±1.5 dB @ f0)
300 kHz: Bessel 60 dB/dec (3rd order; 0 to -3 dB @ 300kHz)
Typical SFDR and SNR
100 mA
1 A
30 A
300 kHz 100 kHz 10 kHz
SFDR SNR SFDR SNR SFDR SNR
95 dB 64 dB 95 dB 67 dB 95 dB 77 dB
102 dB 82 dB 103 dB 85 dB 113 dB 90 dB
104 dB 89 dB 103 dB 89 dB 117 dB 91 dB
Isolation voltage Input to Ground 1.4 kVRMS
Protection CAT III 300 V
CAT II 600 V
Output voltage ±5 V
Output resistance <10 Ohm
Output current 5 mA
Power On default settings Software programable
Output protection Short to ground for 10 sec.
Power supply ±9 VDC ± 1%
Power consumption 0.7 W
Interface RS-485
(1) 300 kHz exclusively for Bessel  lter characteristic

10
DAQP-LA
IN+
IN-
Safety Banana plugs redblack
INPUT
CONNECTOR
RS-485(A)
RS-485(B)
+9V
+12 V
reserved
reserved
-9 V
±5 V out
GND
2
3
5
6
7
8
9
1
4
OUTPUT
CONNECTOR
Shunt
Programmable
Gain amplifier Isolation
2nd order
lowpass filter
(10 steps)
3rd order
Bessel filter
(350 kHz)
DAQP-LA module
9-pin DSUB
Screw terminals
10 mV
to 3 V
Operation with push buttons
LED state
The DAQP-LA series module has a set of 8 LEDs showing the current input range (constant active)
and lter range (ashing) setting. Further functions are described below.
LED indication:
Filter Range Range Filter
30 Hz 600 mA 6 mA 104
10 Hz 200 mA 2 mA 103
3 Hz 60 mA 102
1 Hz 20 mA 101
Standard functions:
Range button: Push the RANGE button several times shortly until the LED displays the
desired input range.
Filter button: Push the FILTER button once - the LEDs will ash for approx. 3 seconds and
display the current lter setting. Push the FILTER button within the three seconds
several times until the ashing LED displays the desired lter range.
Block diagram
The base block diagram of the DAQP-LA gives an idea of the internal structure.

11
DAQP-LA
IN +
IN +
IN-
IN-
Red
Black
Current measurement via banana plug cords
Current measurement via screw terminals
Signal connection
DAQP-LA-B (-S1) module
DAQP-LA-SC module (EoL: 01/2017)
450134 • DAQP/HSI/PAD Modules • Technical Reference Manual • Printing version 2.3.4 • November 18, 2020

12
DAQP-LA
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