Product outline

A general-purpose DC amplifier with expanded basic functions. With built-in bridge power supply voltage for strain gauge type sensors, this is ideal for the measurement of pressure, load, torque and displacement. Because AM20AZ equipped with current output and electronic auto zero function in addition to standard voltage output is also included in our product lineup, it extends the range of applications.

Specifications

Compatible converter Various strain gauge type sensors.
Bridge resistance: 60 Ω to 2 kΩ
Excitation voltage ･ Voltage: 10 V, 5 V, 2.5 V DC ±5%
･ Output current: within 120 mA for 10 V, within 50 mA for other voltages
Zero adjustment range ±6 mV RTI
±0.6 mV/V (excitation voltage: 10 V) 20 turn trimmer potentiometer
Gain adjustment range Input within the range between 0.35 mV/V and 3.1 mV/V can be rating (10 V) (excitation voltage: 10 V).
Low-pass filter 1 Hz and PASS, Bessel type low-pass filter (-12 dB/oct.)
25 kHz/-3 dB or more responded to PASS
Voltage output ±10 V within ±20 mA)
Current output ･ Current: 4 to 20 mA (Load resistance: 500 Ω or less)
Output resistance within 0.1 Ω
Calibration voltage 0.25 mV/V and 1 mV/V ±0.1%
Zero drift Within 0.2 μV/°C RTI (at max. sensitivity)
Gain drift Within 0.01%/°C
Noise ･ Within 0.2 μVp-p (0.1 to 1 Hz) RTI
･ Within 15 μVp-p (full band) RTI
Non-linearity Within 0.005%/FS
Excitation voltage drift Within 0.003%/°C
Auto zero range ±10 V (±5 V, ±2 V, ±1 V, Please specify when ordering.)
Resolution 12 bit (±1/2000)
Auto zero command Via front panel ON/OFF switch and external control signal (negative pulse with a pulse width of 50 ms or more)
Power supply voltage 100 V AC±10%, 50/60 Hz, approx. 10 VA
Operating conditions ･ Working temperature range: 0 to +50°C
･ Storage temperature range: -40 to +85°C
･ Humidity: 80% RH or less (non-condensing)
Dimensions 49.5(W)×138(H)×180(D) mm (protruding parts not included)
Weight Approx. 1.4 kg
Attachments ･ AC input cord (1)
･ Spare fuse (0.5 A) (1)
･ Mini-driver (1)
･ Crimping terminal (11)
･ Operation manual (1)

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