Will the LCP2H250 work properly if the common and lower probes are the same length? Macromatic LCP2H250 120V Dual Probe Liquid Level Relay, 1K to 250K

I am replacing an old Warrick 16VM Series level control relay. The relay is used to control a fill pump for a pond. The Warrick diagram shows the reference and low probes at the same lengths. However, the directions for the LCP2H250 states the the reference probe must stay in the liquid. Does it matter? I don't intend to change the probes. My intention is to buy the appropriate relay.

Status: Open Feb 13, 2023 - 09:20 PM

Relays

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Feb 14, 2023 - 10:20 AM

The Macromatic LCP2H250 liquid level relay should work. When the probes are different lengths, and the fluid in the tank reaches the high probe and senses a lower resistance between the high and low probe, it switches the relay off. When the fluid sees a high resistance between the low probe and the reference, it turns the relay on. If the reference and the low probe are the same length, it shouldn't matter. The fluid will be below both, a high resistance will happen, and turn on the relay.