Product outline

AM32AZ is a general-purpose DC amplifier with a built-in bridge excitation supply for strain gauge sensors. It exhibits power performance for broadband operation (DC -100 kHz) achieving high gain (Max. gain: 10000 times), but it has an extremely low drift. Therefore, data precision with every measurement or experiment markedly improves. In addition, AM32AZ has excellent user-friendliness. It is equipped with a calibration function by digital switch which allows easy calibration of either value of voltage or strain amount.

Specifications

Compatible input resistance 60 Ω to 2 kΩ
Excitation power supply Voltage: 2.5, 5, 10, 15, 20 V DC ±0.2%, Current: max 50 mA
Equilibrium adjustment range ±1.5 mV/V (excitation voltage 10 V)
Input voltage range 0 to ±100 mV
Input resistance 10 MΩ or more (direct-coupled equilibrium differential)
Voltage amplification Max. 10000 times
Gain adjustment ･ Coarse adjustment: 0, 1/20, 1/10, 1/5, 1/2, 1/1…Error±0.2%
･ Fine adjustment: 1 to 1/6 of each range variable
Zero drift Within ±0.5 μV/°C (after a lapse of 30 min. after power ON)
Gain drift Within ±50 ppm/°C of measured value (after a lapse of 30 min. after power ON)
Noise Within 30 μVp-p RTI (full band)
Within 2.5 μVp-p RTI (1 kHz band)
Within 0.5 μVp-p RTI (10 kHz band)
Non-linearity Within ±0.01% FS
Output voltage ･ Voltage output: 0 to ±10 V ±5 mA, Output resistance: 0.2 Ω (BNC connector output)
･ Voltage output: 0 to ±10 V ±30 mA, Output resistance: 300 Ω (binding post output)
Response characteristic DC – 100 kHz/-3 dB
High-pass filter (AC mode) 0.5 Hz(-3 dB)　±15%, -6 dB/OCT.
Low-pass filter 1, 10, 100, 1 k, 10 kHz (-3 dB) ±15% and PASS-12 dB/oct, Bessel type
Calibration value Strain calibration: ±1 to 9999 x 10-6 strain, Voltage calibration: ±1 to 9999 μV, Setting method: 4-digit digital switch, Accuracy: ±0.2%±0.5ｘ10-6 strain (strain calibration), ±0.5%±5 μV (voltage calibration) superimposed on input signal
External control Electronic auto zero function
･ Auto zero range: ±1 V (±10 V, ±5 V, ±2 V Please specify when ordering.)
･ Auto zero command: ON and OFF, panel face switch and external signal (negative pulse with a pulse width of 50 ms or more)
Operating conditions ･ Working temperature range: 0 to +50°C
･ Humidity: 85% RH or less (non-condensing)
Power supply voltage 100 V AC ±10%, 50/60 Hz
Power consumption Approx. 10 VA
Dimensions 49.5(W)×138(H)×310(D) mm (panel thickness included, but dimensions of protruding parts not included)
Weight Approx. 1.9 kg
Attachments ･ AC input cord (1)
･ Spare fuse (0.5 A) (1)
･ CA8 (BNC-alligator clip cable 1.5 m) (1)
･ Operation manual (1)

Optional accessories

Model
CA3Y31 (6-core) input cable with PRC connector (3 m)
CA451 (6-core) input cable with PRC connector at both ends (5 m)
CA7 Coaxial cable with BNC
CA8 Cable with Alligator clip at one end

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