Myron L 750 II Series - Page 35

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counterclockwise position. If not, turn SCO Set Point
control fully CCW - it may be 30 turns - or until it clicks.
  ForlocationseegureIII.C.13.
3. Turn power ON.
4. Press BOTH the Temperature Select switch and the
Set Point switch on the front panel.
5. Adjust the TP/TPO Module Set Point Two (SP2) to
  temperatureasdesired.SeegureIII.C.1.
6. Turn power OFF.
c. Hysteresisisxedatapproximately±6°Cunless
Special Ordered with adjustable control.
Hysteresiswithadjustablecontrolisvariablefrom±0.6to6°C,
seegureIII.C.1forlocation.
CAUTION: Adjusting the hysteresis too narrow may cause the
alarmtouctuate(on-off)duetotemperaturevariationscausing
the relay to chatter. This condition is to be avoided, it may dam-
age the heater, chiller, etc. and will eventually damage the relay.
REASSEMBLY
 1. Carefullyreinstallthefrontpanel,bottomrst.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.
Figure III.C.12
FS
INC
INC
TEMP
CONTROL
HARNESS
DEC DEC
SET POINT
CONVERSION (SPC)
SPC
Figure III.C.13
SC/SCO MODULE
(SECOND ALARM/CONTROL)
MAIN CIRCUIT BOARD NOT SHOWN FOR CLARITY
SCO SET POINT #2 ADJUST
(TURN CONTROL FULL CCW)
SPC
INC
PA
COM
RELAY #2
}
NO
NC
CM NO NC