dacell DN-AM210 User Manual

Dynamic strain amplifier

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MODEL : DN-AM210
DYNAMIC STRAIN AMPLIFIER
USER'S MANUAL
DACELL CO.,LTD.
Address: 681-1, Cheoksan-Ri, Nami-Myeon, Cheongweon-Gun,
Chung-Buk, 363-810 Korea
TEL: 82-43-260-2242
FAX: 82-43-260-2245
http://www.dacell.com
E-Mail: dana@danaloadcell.com

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Summary of Contents for dacell DN-AM210

  • Page 1 MODEL : DN-AM210 DYNAMIC STRAIN AMPLIFIER USER’S MANUAL DACELL CO.,LTD. Address: 681-1, Cheoksan-Ri, Nami-Myeon, Cheongweon-Gun, Chung-Buk, 363-810 Korea TEL: 82-43-260-2242 FAX: 82-43-260-2245 http://www.dacell.com E-Mail: dana@danaloadcell.com...
  • Page 2: Table Of Contents

    CONTENTS 1. FOREWORD  2 2. SPECIFICATION  3 3. COMPOSITION  6 3-1. FRONT PANEL  6 3-2. BACK PANAL  6 3-3. DESCRIPTION …………… 7 4. HOW TO OPERATE  9 4-1. POWER CONNECTION9 4-2. SENSOR CONNECTION  9 4-3.
  • Page 3: Foreword

    1. FOREWORD Dynamic Strain Amplifier DN-AM210 is composed as the following features.  This device amplifies minute voltage signals of strain gauge type sensor or all types of transducer to display and output as in voltage.  Shunt CAL feature is installed.
  • Page 4: Specification

    2. SPECIFICATION ① Measurement marks : 1CH / EA ② Measuring method : Deflection Method ③ Working Gauge : 120, 350 ④ Gauge rate : 2.00 ⑤ Bridge voltage (B.V/V) : DC 1V, 2V, 5V, 7.5V, 10V ⑥ Measuring range Bridge Voltage Measuring range 10V……………………...
  • Page 5 ⑫ Sensitivity adjustment (GAIN) X1, X10,X100,X400, X1000 within  1% at error each point (SPAN) X1 ~ X11 continuous variableness (FINE) X1 ~ X2 continuous variableness ⑬ S/N rate (Input conversion numerical value): more than 54dB (1kHz) CMRR (Input conversion numerical value): more than100dB (1kHz) ⑭...
  • Page 6: Composition

    3. Composition 3-1. Front Panel ○ Power lamp ○ Zero hand-operated control volume ○ Zero auto control switch ○ L.P.F switch ○ GAIN control volume ○ GAIN selecting switch ○ CAL Strain value switch ○ Power switch ○ Bridge voltage selecting switch 3-2.
  • Page 7: Description

    3-3. Description ○ Power lamp This lamp shows you the power supply to Amplifier. ○ Zero Hand-operated control volume It is a volume to control the offset of residual quantity after finishing the auto zero control. Control range is within  1V. ○...
  • Page 8 ⑨ Bridge voltage selecting switch This switch is to select the bridge supply voltage. You can make your selection for the supply voltage among DC 1V, 2V, 5V, 7.5V, 10V. ⑩ Sensor input connector You can use Strain gauge type sensor as well as Potentiometer Voltage input. ⑪...
  • Page 9: How To Operate

    4. How to operate 4-1. Power connection ○ Please only use the exclusive AC code (5-tube) for the power cord. When AC is not grounded, please make the connection by using the ground connector which is located on the backside of lamp. ○...
  • Page 10: Notes For Selecting Sensor Cable

    ○ When Thermocouple temperature sensor is used, an error in measurement can be occurred since the temperature-electromotive force might be generated on the commissure between the connector pin of amplifier and thermocouple lead wire. Therefore, you should do the cold junction compensation or you should carry out the measurement in the place where without such a big temperature change.
  • Page 11: Notes For Static Measurement

    ○ If you use a long wire, please use a balanced leading line so that you can minimize the noise. 4-6. Notes for Static measurement You must make sure that the cable resistance between each gauge lead wire is regular. If it is not, the measurement value can be changed by the surrounding temperature.
  • Page 12: Bridge Balance

    voltage from the gauge. Maximum Metallic (foil) gauge can be normally 50% ~ 75% for the stability and good S/N (signal to noise). Exclusive voltage should be applied for the semi conductive gauge. To control the sensor proper voltage of the amplifier, please turn the bridge voltage switch.
  • Page 13: Filter Control

    EX) 2mV/V      Vout Vout : Output voltage of amplifier when the maximum output of transducer is inputted : Bridge proper voltage : Amplifier gain : Output sensitivity of transducer (mv/V) For shunt compensation, error can be occurred by wiring, bridge resistance or proper voltage while stress analysis is being done.
  • Page 14 GAIN Band Width Characteristic...

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