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Viking
Power Load Monitors
Design Features
The Viking Power
load monitors provide a simple, cost effective, state-of-the-art
method to monitor pump and system problems and alarm or shut down
the pump when a change of load is detected at the motor.
They are applicable to positive displacement or centrifugal pumps,
as well as other types of motor-driven equipment. They are
especially useful for pumps which are susceptible to damage due to
dry running, such as sealless magnetic drive pumps.
The M-10 monitors
can be set to detect either an underload condition (indicating dry
running or cavitation) or an overload condition (indicating
overpressure* situations). The M-20 can detect both
underload and overload conditions. The monitors are capable
of handling both 50 and 60 Hz power, single or three phase, on
loads up to 999 HP.
*Note: The power
load monitor should not be used as exclusive protection in case of
sudden discharge line blockage on positive displacement pumps.
Other means of protection such as a pressure relief valve must be
used in conjunction with the power load monitor to avoid pressure
spikes in the system.
Specifications
- Supply
Voltage:
M10: 1-phase 100-240, 3-phase 100-600; M20:1-phase 100-240,
3-phase 100-240, 380-500, 525-600.
- Mounting:
35mm
DIN-rail 46277
- Approved
to:
UL, CE (up to 690V), cUL
- Startup
Delay:
M-10: 1-64 seconds; M-20: 1-999 seconds
- Response
Delay:
M10:
0.05-64 seconds; M-20: 0.1-90 seconds
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