Goulds Pumps 3296M - IOM - Manual (Page 73)

CONDITION MONITORING DEVICES
Low Amp Relay (Option)
DESCRIPTION
The Low Amp Relay System senses the current level of the electric motor. The monitor triggers to sound an alarm
and/or shutdown the pump when the current falls below a preset level (indicating a pump problem such as magnet
decoupling, dry running or low flow operation). Sensing low current provides pump protection, preventing pump
damage from operation problems.
COMPONENTS SUPPLIED
(1) Current Monitor
(1) Terminal Socket
(1) Current Transformer (supplied only if full load
operating current exceeds 8 amps)
Specifications
Current Monitor
Make - Diversified Electronics
Series - CMU
Control Voltage - 120 VAC 50/60 Hz
Trip Points
- Drop Out - Adjustable
- Pick Up - 5% Above Drop Out
Response Times - Operate - .1 Seconds
- Release - .1 to 5 Secs. Adjustable
Output - DPDT, 10 Amps at 120 VAC, Resistive
Current Transformer
24 in. leads
600 V Insulation
25 - 400 Hz Operation
Rating Ratios: 25/5
(as specified on 50/5
transformer 100/5
supplied) 200/5
NOTE: Maximum operating current must be less than
twice the rated current.
MOUNTING LOCATION
It is recommended to mount components in an enclosure to avoid excessive shock, vibration, dirt, moisture and oil.
Ambient temperature should be between 15° F to 150° F (-10° C to +65° C). Typically, the motor starter enclosure
or a control room is adequate. Note that unit should be mounted in close proximity to motor electrical leads for
convenience.
3296 M Group 6/05
69