Massa M3 User's Guide download pdf (Page 24)

MASSA PRODUCTS CORPORATION

Product Manual- April 24, 2012 23 M3 Wireless Ultrasonic Level Sensor

APPENDIX C (continued)

Digi Gateway & Massa M3 Sensor Placement Strategies

This example shows a much taller tank with a gateway placed high

overhead. Here the tractor trailer does not impede the radio signals.

In this scenario, a chain link fence is between sensor and gateway.

A metal fence will significantly reduce the radio range. It is better

to place the tank with sensor on the other side of the fence or place a

router in a location possibly over the fence.

This scenario will also reduce the effective radio range. Place wall

routers between the 2 points or place the gateway closer to the

storage tanks. The radio signals here can bounce away from the

sensor if the roof is metal.

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Massa M3 User's Guide Page 24