Portable Vibration Calibrator AT-2040

With the AT-2040 you will find the functions you need for your application without having to install cumbersome and costly add-ons.

The AT-2040 features a fully automatic sensitivity test mode, signal simulation, power supply output for sensors requiring voltage, such as the 7310 and 991V aviation sensors, a built-in sensor load amplifier for single-ended and differential load accelerometers, and a custom sensor input that can be configured to fit most accelerometers with a one-to-one cable.

Main Functions

AT-2040 Portable Calibrator

Vibrate or excite a transducer under test:

In vibration mode, the AT2040 can be used as a vibrator with variable frequency and amplitude. In this mode, the user manually adjusts the frequency and amplitude, while the device provides high-precision measurement signals.

Calculate the sensitivity of the transducer:

By comparing the signals sent to the reference accelerometer by the signal generation board and the signals returned by the transducer under test, the AT2040 can automatically determine the sensitivity of the test transducer with a high level of accuracy.

Generate a calibration certificate traceable to NIST:

Once the sensitivity over the entire frequency range of the test transducer has been calculated and stored, the AT2040 will generate a NIST-traceable certificate and graph in PDF format. This certificate is stored in the computer’s memory and can be retrieved and exported at any time to a USB flash drive.

Simulate a transducer using a precision signal generator (function generator):

The AT2040 is capable of producing signals over a wide amplitude and frequency using its built-in amplifiers to simulate a variety of load and voltage signals. This allows the user to simulate a transducer in operation and is the ideal tool for electronic testing, troubleshooting or calibration of condition monitoring systems.


  • A2LA ISO/IEC 17025:2017 accreditation*.
  • Quartz reference accelerometer
  • Back-to-back calibration with laser-calibrated primary reference for greater accuracy.
  • Simulation mode*.
  • Closed-loop digital control.
  • Digital electronics
  • 100-240 V power with standard plug receptacle and built-in charger.
  • Custom PC software included for setting up fully automatic test mode
  • Built-in charge converter
  • Proximity, voltage, load (piezoelectric), 4-20 mA, proximity probe sensitivity readings
  • Adjustable current and voltage
  • Automatic generation of PDF certificates tailored to your custom specifications
  • Export data to CSV.
  • Connect to a PC via Wi-Fi and control the device from a remote location with Google Chrome’s built-in VNC viewer

AT-2040 Portable Calibrator


AT-2040 Portable Calibrator

The AT2040 is packed with features and functions. Comprehensive, easy-to-use software tools help operators quickly identify and address problems in their vibration system configurations.

  • Create calibration certificates for vibration instruments.
  • Test all types of vibration sensors and transducers from a variety of accelerometer and eddy current probe manufacturers.
  • Test and verify the performance of vibration system meters, portable data collectors and cabling by using an accurate and traceable signal generator to simulate a variety of sensors.
  • Provides a controlled closed-loop reference signal from 5 Hz to 10 000 Hz for testing over a wide frequency range.


The AT2040 has many applications including:

  • Troubleshooting wiring and cabling problems
  • Simulation of vibration signals: accelerometers and velocity probes
  • Simulation of machinery speed signal
  • Calibration for:
  • Accelerometers
  • Proximity probes and drivers
  • Monitoring systems
  • Charge amplifiers
  • Avionics equipment

AT-2040 Portable Calibrator


AT-2040 Portable Calibrator

AT2040 has a built-in vibration signal generator capable of producing high precision electrical signals over a wide frequency and amplitude range. Designed specifically to simulate accelerometer output, the AT-2040 accelerometer calibrator features the ability to simulate current, voltage and load signals that accurately mimic a variety of transducers and sensors. By using the simulator signal, the operator can produce signals over a wider range than using the vibrator alone.

Simulator signal support for:

  • IEPE
  • Upload
  • 4-20 ma
  • proximity probe

Proximity Probe Calibration

  • Proximity Probe Controller Input
  • 24-volt supply to power the proximity probe drivers
  • Built-in meter to display voltage on the color screen
  • Accurate results for AC and DC voltage.
  • Connects directly to the probe controller without any external equipment

*The proximity probe kit is an additional product.

Direct input for 4-20mA transmitters

  • Connects directly to the calibrator without any external equipment
  • Built-in +24 volt supply
  • Current displayed in milliamps
  • Sensitivity displayed on the color LCD screen

Integrated power supplies

Integrated power supplies to power accelerometers and proximity probe controllers:

  • 5-10 volts adjustable
  • +24 volts fixed
  • -24 volts fixed

Self Test

Full automatic test: Customize your fully automatic test for one-button operation.

Complete the test to obtain the certificate in just 3 minutes!

One-to-one connections

The 8-pin input/output connector supports sensors that require power, such as 3- or 4-pin accelerometers, and can be used to connect all three triaxial channels at the same time. The AT2040 can also power sensors using its internal power supply. This eliminates the need for BNC connections and external power supplies.

Below is a list of some examples of common accelerometers that the AT-2040 can connect with a single cable. It will most likely be compatible with your application as well. Email us for more details.

  • Bently Nevada 330400
  • Bently Nevada 330450
  • Honeywell (Chadwick-Helmuth) Speedometer 7310
  • Honeywell (Chadwick-Helmuth) Velocity meter 866-1
  • Aces Systems 991V
  • Wilcoxon 991D

AT-2040 Portable Calibrator

Internal charge amplifier

The built-in charge amplifier can be used to read the sensitivity on differential and single-ended charge mode accelerometers. Below are some popular sensors in common use:

  • Dytran 330C1
  • Dytran 3235
  • Dytran 3035C
  • Dytran 3055C
  • Dytran 3085C
  • Dytran 3088C
  • Dytran 3092C
  • Bently Nevada 330450
  • Bently Nevada 330750
  • Bently Nevada 350900
  • Vibrometer CA 134 and CE 134
  • Vibrometer CA 202
  • Vibrometer CA 280
  • Vibrometer CE 281
  • Vibrometer CA 303
  • Vibrometer CA 306
  • Vibrometer CE 311
  • CCA 40123
  • CCA 4-125
  • CCA 4-126
  • CCA 4-128
  • CCA 4-130
  • CCA 4-137
  • CCA 4-138
  • CCA 4-170
  • CCA 4-171

Do you want more information about our products?

Leave us your data, make sure they are correct, we will contact you shortly.


    This site is protected by reCAPTCHA and the GooglePrivacy Policy and Terms of Service apply.