Portable calibrator CA-20

The CA-20 directly calibrates accelerometers, on site Piezoelectric accelerometers are widely used to analyze vibrations and diagnose the performance of rotating machinery. Checking the sensitivity of accelerometers after they have been used under harsh conditions or for a long time has usually been left to the manufacturers because of the expensive calibration equipment required.

The CA-20 integrated the exciter, amplifier and display in a single unit.

All you have to do is attach the sensor, for a speedy calibration of the sensor’s sensitivity. You will now be able to gather reliable data with confidence, any time that you need to.


Up to 100 data can be stored in the unit of CA-20. (Sensitivity, DC bias voltage, date and time)

Data can be transferred to PC.

Powered by batteries or AC cable.

Example of calibrator in use

Directly input the sensor output, and check the sensitivity.

Use the exciter only, and calibrate the vibration measuring system.

Technische Daten

PE/IEPE Calibration Accuracy Sensitivity 0.101–19.9 pC (mV)/m/s2, (±3 % + 1 digit)
Sensitivity 0.026–0.100 pC (mV)/m/s2, (±10 % + 1 digit)
Accuracy Measure to DC Bias Voltage ≦±1 V
Calibration Mode Single/Repeat
Exiciter Vibration Acceration 10 m/s2 (rms) ±3 %
Exciter Vibration Frequency 159.2 Hz ±1 %
Calibration Sensor Weight ≦100 g
Overweight Alarm "Over" indication and exciter stops
Power Supply for IEPE Accelerometers Voltage DC 24 V / DC 15 V
Constant Current 0.5 mA / 2.0 mA / 4.0 mA
Power Requirements AC adapter or LR6 batteries
* Approx. 1 hour continuous operation on 4 AA batteries
LR6 battteries alarm lamp ≦4.25 V ±0.1 V
Storage Humidity Range ≦90 % R.H.
Operating Temperature Range 10–40 °C
Storage Temperature Range –10 °C to 50 °C
Internal Data Memory 100
Auto Power-Off Approx. 3 minutes
Display Backlight Switchable on/off
Sensor Mount Space ⌀ 20 mm, M6 female (depth 6.5 mm)
Dimensions(W × H × D) 120 mm × 50 mm × 140 mm
Weight Approx. 1 kg