Frequency Monitor

29

The Model 29 Frequency Monitor provides essential oversight for industrial electrical systems. It precisely monitors frequencies within a 40Hz to 70Hz range, with an extended 320Hz to 560Hz option via jumper. Operating across an 80-550 VAC input, this unit ensures consistent performance. Dual SPDT output contacts, rated at 10 Amps for 240VAC, offer robust control capabilities. Configurable high and low frequency set points, along with adjustable trip delays and hysteresis, allow for tailored system protection. Its Lexan Polycarbonate enclosure and -20°F to +130°F operating temperature range ensure durability in demanding environments. Repeat accuracy is maintained at ± 0.5%. Automatic or manual restart options further enhance operational continuity, minimizing downtime. This monitor is a reliable component for maintaining system stability.

1Ph Freq Monitor

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29

Specifications

Input Voltage (VAC)80-550 Volts
Input Amps1mA
Input Frequency50/60Hz nominal
DC Power24 Volts, 2 watts
Output Rating (Resistive)240V AC, 10A
Output Rating (General Use, 120V)120V AC, 4A
Output Rating (General Use, 240V)240V AC, 2A
Output Rating (Pilot Duty)C300
Start-up Delay5 secs. Min. or Automatic reset delay setting (to allow for solid lock)
Frequency Range40Hz to 70Hz
Frequency Range (with jumper)320Hz to 560Hz with 400Hz jumper
Output ContactsSPDT x 2 10 Amps @ 240VAC
Repeat Accuracy± 0.5% (fixed conditions)
Reset TypeManual or Automatic
Expected Relay Life (Mechanical)10 million operations
Expected Relay Life (Electrical)100,000 min. at rated load
Operating Temperature-20°F to +130°F
Humidity Tolerance0-97% w/o condensation
Enclosure MaterialLexan Polycarbonate
MountingDin Rail 35mm
Accuracy+/- 0.5%
Setup Option: Frequency range select50/60Hz (Default), 400Hz
Setup Option: High frequencyEnable/Disable (Factory Enabled, Set point = 70Hz, Delay =5S)
Setup Option: High frequency Set point RangeLow Set +1% to 600Hz in 0.5Hz steps
Setup Option: High trip delay0 to 20.0 seconds in 0.1Sec steps
Setup Option: Low frequencyEnable/Disable (Factory Enabled, Set point = 40Hz, Delay = 5S)
Setup Option: Low frequency Set Range40 to High Set -1% in 0.5Hz steps
Setup Option: Low trip delay0 to 20.0 seconds in 0.1Sec steps
Setup Option: Relay operationFrequency High/Low option, Separate High/Low relays, DPDT, Other faults DPDT (Factory = HI-LO)
Setup Option: Relay operation on faultDe-energize on fault, Energize on fault (Factory De-energize on fault)
Setup Option: High/Low Hysteresis range1 to 15% in 1% increments (Factory Enabled, Factory = 5%)
Setup Option: RestartAutomatic or Manual (Factory Automatic)
Setup Option: Automatic Restart Delay range0 to 300.0 Seconds in 0.1Sec steps (Factory = 5S)
Setup Option: Restore factory settingsNo (Default), YES
Warrantyone year

FAQs

What are the operational input voltage and frequency parameters for the Model 29 Frequency Monitor?
The Model 29 accepts an input voltage range of 80-550 VAC and monitors frequencies from 40Hz to 70Hz. A jumper enables a 320Hz to 560Hz range.
What are the output contact specifications and ratings for this frequency monitor?
It features two SPDT output contacts, rated for 10 Amps at 240VAC resistive load. General use ratings are 120V AC, 4A and 240V AC, 2A.
What are the environmental operating conditions and mounting requirements for the Model 29?
The unit operates from -20°F to +130°F with 0-97% humidity without condensation. It is designed for Din Rail 35mm mounting.