Myron L 729II - Manual (Page 59)

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CAUTION: adjusting the hysteresis too tight may cause the
alarm to fluctuate (on-off) due to flow, chemical mixing or bub-
bles causing the relay to chatter. This condition is to be avoided,
it could damage your valves, pumps, etc. and will eventually
damage the relay.
* Applies to both set points if so installed.
The following is assuming the front panel is already removed
and the set points have been set, if not see above,
1. Locate the hysteresis control adjustment located next
to the Set Point #1 (SP1) adjustment - it is a single turn
pot. See figure V.A.1.
2. Adjust as described above or as desired.
REASSEMBLY
1. Carefully reinstall the front panel, bottom first. Ensure
no wires have been pinched between enclosure and
front panel.
2. Reinstall the four (4) screws and tighten.
3. To operate, turn power ON.