Veris H904 Current Switch

Features

  • Automatically compensates for the effects of frequency and amperage changes in monitored conductor associated with VFDs
  • Nuisance reduction – provides a secondary setpoint option of 50% of the originally measured current
  • Rapid troubleshooting – LED indicates normal and alarm conditions
  • Induced from monitored conductor sensor power
  • LED status, LED relay power
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Veris Industries is an energy and environmental sensor partner that provides quality products for commercial HVAC and other automation applications. We offer complete lines of reliable, long-lasting innovative power monitoring products.

Hawkeye 904 current monitoring devices provide unique solutions for accurately monitoring the status of motors controlled by variable frequency drives. The microprocessor-based H904 store the sensed amperage values for normal operation at various frequency ranges in non-volatile memory. This information allows the device to distinguish between a reduced amp draw due to normal changes in the frequency and an abnormal amp drop due to belt loss or other mechanical failures.

Dimensional Drawing

Monitoring Fan /Pump Motors For Positive Proof Of Flow Wiring Diagram

Applications

  • Monitoring positive status on motors controlled by variable frequency drives
  • Replacing pressure switches
  • Measuring current and load trending

Specification

Model H904
Application Building Automation Systems
Current Measurement Range 3.5 – 135 A
Current Sensor type Current Switch, AC
Electrical Wiring Size 24 – 14 AWG (0.2 – 2.1 mm²)
Measurement Type AC Current | VFD
Monitored Frequency Range 50 – 60 Hz
Monitored Wire Size 0.8″ (21 mm)
Mounting Split Core
Operating Humidity 10 – 90% RH, non-condensing
Operating Temperature 5 – 140 °F (-15 – 60 °C)
Output Specifications N.O. 1 A @ 30 VAC/DC
Outputs Switch output
Product Certification UL | CE
Product Type Sensor
Range VFD Series
Relay Coil Voltage None
Relay Contact Ratings None
Relay Poles/Throw None
Setpoint  Automatic Calibration
Warranty 5 years

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