16+ Channel Online Monitoring System

The A3716 is powerful online monitoring condition monitoring system for rotating machinery. The system can operate as an independent monitoring system or it can be used as extension of an existing protection system. The A3716 online condition monitoring system module contains 16 AC, 16 DC and 4 TACHO inputs. All channels are measured simultaneously. The modules can be easily composed together and by this we can create system with more channels.

Setting and control of A3716 online condition monitoring system is done in DDS software – it has never been easier. The only thing you need to do is to create the tree of machines, measurement points, required readings and assign them to appropriate channels. Then you just press START and the readings are done automatically.

key features

  • Adaptive algorithm of data acquisition
  • 16 channels AC
  • 16 channels DC
  • 4 TACHO inputs
  • 16 BNC buffered outputs of signals from sensors
  • 16 programmable relays outputs


Application Scheme

online condition monitoring system


Input channels AC:
16 x AC, ICP® power supply on/off
input impedance 100kΩ
integration single, double
high pass filter 1 Hz – 12800 Hz
low pass filter 25 Hz – 25600 Hz
Input channels DC:
16 x DC for process values
input impedance 100 kΩ (VDC), 250 Ω (mADC)
TACHO inputs:
4 independent TACHO for speed probe / external trigger
speed range 0,8 Hz – 1000 Hz
Input range:
AC +/- 12 V peak-peak
DC +/- 24 V or 4 – 20 mA
AD conversion:
24 bit, 64 bit double floating point internal signal processing
No AutoGain function!
Dynamic range S/N:
120 dB
Frequency ranges:
max. 25,6 kHz (16 Ch, 65,5 kHz sampling)
Sampling mode:
Fully simultaneous for 16 channels
FFT resolution:
Min. 100 lines
Max. 25 600 lines
Intel Core2 – 2.5 GHz
Memory RAM:
4 GB
Internal hard drive:
Data acquisition:
Overall values
Time signals
FFT real time analysis
ACMT – low speed bearing analysis
order analysis
user band pass analysis
RPM measurement
DC measurement
Orbit measurement
Speed measurement
Signal Recorder:
64 kHz sampling frequency
4 Ch memory consumption 3 GB/hour
free run, TACHO, external (voltage)
Ethernet 1GB RJ45
Temperature range:
-10˚C to +50˚C
AC 110 – 240 V, 45 – 65 Hz
19´´aluminium rack
Size & Weight (2U):
430 x 360 x 90 mm
4,7 kg
Size & Weight (3U)
430 x 360 x 135 mm
6,2 kg

Data Sheets & Manuals

A3716 data sheet A3716 manual
Firmware for A3716 - version 0267