DTM20 monitor can interface with almost any vibration sensor (accelerometer or velocity transducer). The DTM is fully digital and may be configured in the field via DTM-CFG software or come pre-configured from the factory.
Redundant power supplies
Redundant 4-20mA outputs
Dual dry-contact relay outputs
Trip multiply and Bypass
Power: Redundant. Accept dual power input
Isolation: 1000VDC power to signal conditioner circuit
Frequency Response: (-3dB)
Nominal Frequency: 2 ~ 3KHz
Low Frequency: 0.5 ~ 100Hz
High Frequency: 10 – 20KHz (peak)
Filters: Low-pass filter (field programmable):
8-pole (160 dB per decade, 48 dB per octave)
100Hz to 10kHz, field programmed by CFG
High-pass filter (factory setting):
2-pole (40 dB per decade, 12 dB per octave)
4 options (0.5Hz,2Hz,10Hz,100Hz) or custom
Piezo Sensor Interface:
or any sensitivity specified
Seismic Velocity Sensor Interface:
User specified for any vibration sensor
Typical +/-1% FS
Maximum +/-2% FS
Buffered Output: Original vibration, un-filtered
Maximum cable distance: 300m (1000ft)
Sensitivity: same as the sensor
Local BNC connector
On line CM terminals
Overall Vibration output: Up to two 4-20mA output
4-20mA(1): Source. Output to controller.
Sharing signal ground
Maximum load resistance 500Ω
4-20mA(2): Loop. Loop powered by controller.
Galvanic isolation, 1000VDC
Power supply range: 16-30VDC
Maximum load resistance: 50*(Vs-16)
Where Vs is the loop power supply
Alarm Set point: 5 ~ 100% FS
Delay: 1~60s, according to 1 second increase, default is 3s.
2.0A/24VDC, resistive load
Relay type: SPTD
SET: System on-site calibration and alarm setting
+ : Adjustment increment
– : Adjustment decrement
LED Machine Condition Indicator:
OK: System OK indication
ALT: Vibration over Alert level
DNG: Vibration over Danger level
BYP: System in BYPASS
TRX: Digital transmission active
Digital Condition Monitoring
Height: 75mm (2.95″)
see figure below
Weight: 0.9lb (0.4kg)
Operation: -40℃ ~ +85℃.
Storage: -50℃ ~ +100℃.
Humidity: 90% non-condensing.
Case: Aluminum cast (copper free)