Varec 2920 Installation And Operation Manual page 133

Varec, Inc.
4. Turn the cam until the switch activates with an audible click.
NORMALLY CLOSED (NC2)
CONNECTOR
NORMALLY OPEN (NO3)
CONNECTOR
(UNUSED)
COMMON (COM)
CONNECTOR
LIMIT SWITCH
5. Gently turn the encoder shaft back and forth to verify that the switch is operating properly.
Dial Indicator
6. Twist the adjustable cams relative to each other to adjust the length of the dwell (the dura-
tion of the alarm).
Note Care should be taken to avoid having too much dwell that will cause the low alarm
to sound at the high levels and vice versa.
11 Configuration & Calibration — Level, Limits, and Outputs
FIELD ADJUSTMENT KNOB
ALARM OFF
ADJUSTABLE ALARM
DWELL TIME
ALARM ON
Field Adjustment Knob
Limit Switch
Limit Switch Cam
(Far Side)
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