AM20AZ
DC amplifier
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.
Specification
| Compatible converter | Various strain gauge type sensors. Bridge resistance: 60Ω to 2kΩ |
|---|---|
| Excitation voltage | ･ Voltage: 10V, 5V, 2.5V DC ±5% ･ Output current: within 120mA for 10V, within 50mA for other voltages |
| Zero adjustment range | ±6mV RTI ±0.6mV/V (excitation voltage: 10V) 20 turn trimmer potentiometer |
| Gain adjustment range | Input within the range between 0.35mV/V and 3.1mV/V can be rating (10V) (excitation voltage: 10V). |
| Low-pass filter | 1Hz and PASS, Bessel type low-pass filter (-12dB/oct.) 25kHz/-3dB or more responded to PASS |
| Voltage output | ±10V within ±20mA) |
| Current output | ･ Current: 4 to 20mA (Load resistance: 500Ω or less) |
| Output resistance | within 0.1Ω |
| Calibration voltage | 0.25mV/V and 1mV/V ±0.1% |
| Zero drift | Within 0.2μV/°C RTI (at max. sensitivity) |
| Gain drift | Within 0.01%/°C |
| Noise | ･ Within 0.2μVp-p (0.1 to 1Hz) RTI ･ Within 15μVp-p (full band) RTI |
| Non-linearity | Within 0.005%/FS |
| Excitation voltage drift | Within 0.003%/°C |
| Auto zero range | ±10V (±5V, ±2V, ±1V, Please specify when ordering.) |
| Resolution | 12bit (±1/2000) |
| Auto zero command | Via front panel ON/OFF switch and external control signal (negative pulse with a pulse width of 50ms or more) |
| Power supply voltage | 100V AC ±10%, 50/60 Hz, approx. 10VA |
| 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. 1.4kg |
| Attachments | ･ AC input cord (1) ･ Spare fuse (0.5A) (1) ･ Mini-driver (1) ･ Crimping terminal (11) ･ Operation manual (1) |