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Germany | Switzerland | Austria
Benelux
Althen GmbH Mess- & Sensortechnik
Althen bv Sensors & Controls
Tel: + 49 (0)6195 - 70060
Tel: +31 (0)70 392 4421
info@althen.de
sales@altheris.nl
2 Channel Strain Gauge Amplifier
SG-2K-KS-12E/24E-xxx
France
Althen / DB Innovation
Tél : 0033 (0)4 67 78 61 66
info@althensensors.fr
Sweden
USA | Canada
Althen Sensors & Control AB
Altheris Inc Sensors & Controls Inc.
Tel. +46 (0)8 7 95 24 90
Tel: +1 858-633-3572
info@althensensors.de
info@althensensors.com
Other Countries
please contact us
by email at
sales@althensensors.com
www.althen.de
V2.1 eng
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Table of Contents
Related Manuals for ALTHEN SG-2K-KS-12E Series
Summary of Contents for ALTHEN SG-2K-KS-12E Series
- Page 1 Germany | Switzerland | Austria Benelux France Sweden USA | Canada Other Countries Althen GmbH Mess- & Sensortechnik Althen bv Sensors & Controls Althen / DB Innovation Althen Sensors & Control AB Altheris Inc Sensors & Controls Inc. please contact us...
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Page 2: Table Of Contents
Content 1 General Information 1.1 Safety Instructions 1.2 Qualified Personnel 1.3 Intended Use 2 Instructions for using the measuring amplifier 3 Technical describtion 4 Termianl Assignment 4.2.4 Connecting in 6 wire technology 4.3 Analogue output 4.3.1 Analogue output voltage 4.3.2 Analogue output current 4.3.3 Low pass filter 5 Starting up 5.1 Zero-point adjustment range... -
Page 3: General Information
To ensure reliable and safe operation, the measuring amplifier must be operated in compliance with the specifications according to this technical description only. These regulations must also be observed if accessories, that have been ordered from Althen Mess- & Sensortechnik GmbH together with the measuring amplifier being used. -
Page 4: Instructions For Using The Measuring Amplifier
Notice: Changes of the amplifier of any kind demand for the explicit approval of Althen Mess- & Sensortechnik GmbH. Changes of any kind done without that approval exclude all possible warranty and/or liability of Althen Mess- & Sensortechnik GmbH. -
Page 5: Technical Describtion
2.1 Instructions for using strain gauge sensors Notice: Strain gauge sensors with a small range are extremely sensitivity to improper handling. Force transducers can be destroyed simply by touching. Same applies for the diaphragms of pressure and torque sensors. So, bear in mind: handle with care! Loading the transducer in excess of the nominal range may result in an increased and lasting zero balance offset as well as damage to the sensor. -
Page 6: Termianl Assignment
4 Termianl Assignment The electrical connections are made via screw-clamps. The numbering can be found on the front side of the amplifier. The maximum wire cross section is 2,5 mm². Maximum interference immunity is achieved by direct connection of the cable screen with “clean” and low resistance protective ground (PG). - Page 7 ± 5 V (= 10 V) or ± 2,5 V (= 5 V). This value can be selected by internal DIP-switches and with 2 potentiometers for fine adjustment. DIP switch S-101/S102 on Althen 73 Strain gauge feeding voltage ±5 Volt (=10 Volt)
- Page 8 4.2.2 Connection in 4-wire technology. Notice: When connecting in 4-wire technology the jumpers J1 and J2 must be set. Otherwise, the transducer might get damaged resp. destroyed. The values in the calibration certificate of the sensor have been recorded with the attached cable. So, this cable must not be shortened, because it would increase the sensor signal and therefore change the accuracy.
- Page 9 4.2.3 Lengthening a cable in 4-wire technology As mentioned above the connection should be in 6 wire technology if the sensor comes with no hard- mounted cable or the existing cable is to be lengthened. Example: The sensor has been calibrated with an excitation of 10,000 V. Transducer cable Cable lengthening +SG-Excitation...
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Page 10: Connecting In 6 Wire Technology
4.2.4 Connecting in 6 wire technology Notice: When connecting in 6 wire technology the bridges between sense and excitation clamps must be removed. Otherwise the 6-wire technology does not have the desired effect. Transducer cable +SG-Excitation +Sense SG-Amplifier wire=0,5 Ohm 350 Ohm wire=0,5 Ohm -Sense... -
Page 11: Analogue Output Voltage
4.3.3 Low pass filter In order to suppress unwanted high frequency disturbances (interferences), a low pass filter can be switched on. The DIP-switches on pcb “Althen 34” have to be set accordingly. DIP switch S-101/S201 on Althen 34 Low-pass filter... -
Page 12: Starting Up
5 Starting up If an adjustment (A-K-1K / A-D-1K) has been ordered in combination with the amplifier(-s) and/or transducers(-s), a slight fine adjustment may be necessary nonetheless. This is due to possible various environmental influences as well as to mounting etc. If any visual damage or malfunctions are noticed, the measuring system must be switched off and marked appropriately. -
Page 13: Adjustment / Calibration Of The Amplifier
5.2 Adjustment / calibration of the amplifier In order to adjust or calibrate the amplifier at least one multimeter has to be connected to one of the analogue outputs. Inspection: Unload the measuring device. ■ Connect the multimeter (refer to chapter 4 “Terminal Assignment”). ■... -
Page 14: Correction Of The Analogue Current Output
5.2.1 Correction of the analogue current output The calibration of the amplifier in general is done with the potentiometers on the front. This basic calibration adjusts the analogue voltage output. The analogue current output follows the voltage output. Thus, the analogue current output does not need to be corrected –... -
Page 15: Maintenance
Amplifiers and measurement units manufactured and sold by Althen Mess- & Sensortechnik GmbH serve B2B purposes only. Therefore, those old appliances must not be given to the communal disposer, but must be given back to the seller or disposed of properly. -
Page 16: Appendix
Appendix Datasheet Number of measuring channels: 2 (full bridge resistance > 300 ohms) 12E - 10 … 18 VDC Supply voltage: Electronic protected against voltage reversal 24E - 18 … 30 VDC Isolating proof voltage input to output: 200 V Higher isolated proof voltage on request Power consumption: max.5 W... -
Page 17: Component Diagram
Component diagram 17 | 18... -
Page 18: Component Diagram
Component diagram Subject to modifications. All information describe our products in general form. 18 | 18...
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