VCM-EE in Explosion-Proof Enclosure
MPS’ most popular model in a protected explosion-proof enclosure. Applicable for Explosion-Proof Environments.
For the most complete protection on large, or critical machines, the VCM-E is ideal due to its higher shaft current measurement capacity, uninterrupted grounding, continuous monitoring via 4-20mA signals and alarms for alerting operators to dangerous conditions such as grounding device failure or increase in shaft voltage. VCM-E’s continuously monitor shaft voltage and/or grounding/earthing current providing three 4‑20 mA output signals (per VCM-E) for remote monitoring and trending.
- Explosion Proof
- Prevent Shaft Current Damage
- Shaft Current Sparking Confined or Controlled
- Train Performance Tracking, Aiding Operation
- Continuous Train Performance Sensing and Tracking
- Continuous Train Trending Aiding in Maintenance Scheduling
- Alarms when shaft grounding devices have lost contact with the shaft.
- Alarms on high and low grounding current and/or high shaft voltage.
|Operating Range:||-10°C to 50°C (14°F to 122°F)|
|Relative Humidity:||0% to 95%, non-condensing|
|Storage Range:||-23°C to 60°C (-10°F to 140°F)|
|POWER REQUIREMENTS:||100-240 Vac, 50/60Hz input into the MPS supplied power supply.|
|Current:100mV||(use shunt with 100mV/ full scale rating)|
|(Max. input voltage equals +/-10V)|
|Voltage:||+/- 1V (Max. input voltage equals +/-5V)|
|+/- 10V (Max. input voltage equals +/-50V)|
|+/- 100V(Max. input voltage equals +/-300V)|
|Frequency Response:||30 Hz to 10 KHz|
|Local:||3½ digit LCD display, indicating Average Current, Peak Current, Peak Voltage, and Power/Alarm Check, selectable with rotary switch.|
|Remote:||4 to 20 mA (Load impedance not to exceed 500 ohm) signal representative of Peak Current.*|
|4 to 20 mA (Load impedance not to exceed 500 ohm) signal representative of Average Current.*|
|4 to 20 mA (Load impedance not to exceed 500 ohm) signal representative of Peak Shaft Voltage.*|
|Optional latching available.|
|Local:||LED’s for high and low current and high voltage.*|
|Remote:||Unified, single relay opening (10 watts, 0.5 A, and 100 Vdc) (100Ω minimum load) for high & low current and high voltage.*|
|NOTE: Maximum shaft current is equal to shunt rating. Maximum shaft voltage is 1, 10, or 100 V (selectable).|
|Length:||7.6 inches (193 mm)|
|Width:||7.8 inches (198 mm)|
|Height:||7.6 inches (193 mm)|
|Weight:||15.0 pounds (6.8 kg)|
|* For shaft current monitoring and alarm, a 100 mV current shunt for 1, 2, 5, 10, 20, 50, or 100 A is required.|
|For shaft voltage monitoring and alarm, a shaft voltage sensing device is required.|
|RATINGS:||Class I Groups C & D and Class II Groups E,F,G.|
|CENELEC EExd IIB+H2 T6|
|Order Code: VCM-EE|
"We were experiencing persistent and numerous intermittent generator field ground alarms for 3 months. Had we not installed the MPS VCM-E, the failure would have forced an outage. Thank you MPS!"
- Generator Maintenance Supervisor, U.S.