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Germany | Switzerland | Austria
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Althen GmbH Mess- & Sensortechnik
Althen bv Sensors & Controls
Tel: + 49 (0)6195 - 70060
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info@althen.de
sales@altheris.nl
2 Channel Strain Gauge Amplifier
SG-2K-IP-12E/24E-xxx
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Althen / DB Innovation
Tél : 0033 (0)4 67 78 61 66
info@althensensors.fr
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Altheris Inc Sensors & Controls Inc.
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V2.1 eng
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Table of Contents
Related Manuals for ALTHEN SG-2K-IP-12E Series
Summary of Contents for ALTHEN SG-2K-IP-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 use of the Measuring Amplifier 2.1 Instructions for use of strain gauge Sensors 3 Technical Description 4 Terminal Assignment 4.1 Supply Voltage 4.1.1 Galvanic Isolation 4.2 Strain Gauge Excitation Voltage 4.3 Analogue Output 4.3.1 Analogue output voltage... -
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 using accessories, that have been ordered from Althen Mess- & Sensortechnik GmbH together with the measuring amplifier. -
Page 4: Instructions For Use Of 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: Instructions For Use Of Strain Gauge Sensors
2.1 Instructions for use of strain gauge Sensors Notice: Strain gauge sensors with a small range are extremely sensitive to improper handling. Force transducers can be destroyed simply by touching. Same applies for the diaphragms of pressure transducers. 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: Terminal Assignment
4 Terminal Assignment The electrical connections are made via cable glands to terminal blocks inside. The terminal numbering can be found on the pcb. The maximum cable cross-section is 2,5 mm². The EMC- installation instruction must be complied with. Clamp Description Clamp Description... -
Page 7: Strain Gauge Excitation Voltage
4.2 Strain Gauge Excitation Voltage The described measuring amplifier serves to supply one or two strain gauge transducers. Any strain gauge full bridge with a bridge resistance of 300 ohms or more may be connected. The transducer can be supplied with either 10 VDC or 5 VDC unipolar voltage. This value can be selected by solder points (LP-05B1 / LP-05B) for coarse, and with potentiometers (P 01B1 / P 01B) for fine adjustment. -
Page 8: Analogue Output Voltage
4.3.1 Analogue output voltage The analogue voltage output can be picked up on the corresponding clamps. See chapter 4 “Terminal Assignment”. In combination with a transducer, which is capable to handle tension and compression forces, an analogue output of ± 10 volts is available. However, if an unipolar voltage is needed anyway, it is possible to set the zero point of the transducer to 5 volts of the output. -
Page 9: 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) it may be necessary for a slight fine adjustment 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 10: Zero -Point Adjustment
5.1 Zero -Point Adjustment It is to be noted that there is a slight dependence between zero point adjustment and amplification (gain). The zero point adjustment range is approx. ± 10 %. This range can be changed by setting the dip-switch according to the table below: S01-1 S01-2 S01-3... -
Page 11: Tare - Resistor
5.1.1 Tare – Resistor A potential base load can be electrically suppressed by an additional resistor on the pcb, if an expansion of the zero-point adjustment range is not sufficient. (R tara The value of the resistor can be found in the table below. The resistor is then to be soldered to the solder pins (R ) on the pcb. -
Page 12: Adjustment/Calibration Of The Amplifier
5.2 Check/Adjustment of the amplifier In order to check or adjust the amplifier, at least one multimeter has to be connected to one of the analogue outputs. Please refer to page “component diagram”. Before a check or an adjustment, a warm-up time of approx. 30 mins should be kept. Functional Check: Unload the measuring device.* ■... -
Page 13: Correction Of The Analogue Current Output
5.2.1 Correction of the analogue current output The minimum of analogue current output is 4 mA. A lower current is not possible. When calibrating, the zero-point current has to be set to 4,1 mA with the potentiometer “NULLPUNKT”. Now the range of the current output can be set to 16 mA by using the potentiometer P-03. -
Page 14: Maintenance
According to European and German law, it is prohibited to dispose of old electronic devices by household waste, but must be collected and disposed of separately. 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 15: Appendix
Appendix Datasheet Number of measuring channels: 2 (full bridge resistance >300 Ω) 12E - 0 … 18 VDC Supply voltage: Electronic protected against reversal voltage 24E - 18 … 30 VDC Isolating proof voltage input to 200 V Higher isolated proof voltage on request output: Power consumption: max. -
Page 16: Component Diagram
Component Diagram Supply Voltage Ground (Supply )Voltage Ground (Supply )Voltage Ground Analogue Output Analogue Output Channel 1 Ground Analogue Output Analogue Output Channel 2 Ground Analogue Output Zero Channel 01 Shield / Housing Gain +Excitation –Excitation Channel 01 +Signal -Signal Zero Channel 02 Shield / Housing... -
Page 17: Housing Dimensions
Housing dimensions Subject to modifications. All information describe our products in general form. 17 | 17...
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