Power Load Monitors
Simple and Effective Pump and System Protection
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*.
Viking Power Load Monitors require NO special programming and NO external power supply. They are small enough to fit into a typical motor starter enclosure and can be set in as little as 3 seconds!
*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.
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| M10 | M20 | |
| Protection | Programmable for either overload OR underload | Four protection levels: Two for Overload Two for Underload |
| Approved To | UL, CE, cUL | UL, CE, cUL |
| Adjustable Startup Delay | 1 - 64 seconds | 1 - 999 seconds |
| Adjustable Response Delay | 0.05 - 64 seconds | 0.1 - 90 seconds |
| Analog Output of Shaft Power | No | 4 - 20 mA, 20 - 4 mA 0 - 20 mA, 20 - 0 mA |
| External Reset | Yes | Yes |
| Supply Voltage (Line Voltage) | 1x 100 - 240V ±10% 3x 100 - 600V ±10% |
1x 100 - 240V ±10% 3x 100 - 600V ±10% 3x 525 - 600V ±10% 3x 380 - 500V ±10% |
| Frequency | 50 or 60 Hz | 50 or 60 Hz |
| Power Consumption | 3VA max. | 6VA max. |
| Mounting | 35mm DIN rail 46277 | 35mm DIN rail 46277 |
| Dimensions | L x W x H 115 x 45 x 90 mm 4.5 x 1.8 x 3.5 inches |
L x W x H 115 x 45 x 90 mm 4.5 x 1.8 x 3.5 inches |
| Weight | 175 g (5.65 oz.) | 300 g (10.5 oz.) |