Metex 2200C Conductivity Analyzer/Controller - Manual (Page 20)

Model 2200C Page 18
6.5.1 It may be useful during some system maintenance procedures to place the relay
and analog outputs on hold. To accomplish this simply press CALL. To return to
on line operation press RUN. (If the instrument is in TEST the outputs will not be in
HOLD if the arrow buttons are touched.)
NOTE: To safeguard against the operator forgetting to press RUN the instrument
will automatically go back on line ten minutes after the last button was
pressed provided this feature has been enabled by placing DIP switch No.7
in the ON position.
7.0 UTILITY MENU
7.1 Utility Menu Functions
7.1.1 The Utility Menu enables authorized personnel to perform the following:
• Change the range
• Adjust the temperature output range
• Adjust the offset and span of the 0-1 mA/ 0-5 Vdc output
• Adjust the offset and span of the 4-20 mA output
7.2 Access to Utility Menu
7.2.1 The Utility Menu is protected by password. To access the Utility Menu press and
hold both RUN and ENTER for five seconds until the PASSWORD LED illuminates.
The RUN LED will flash to warn that Utility Menu is in use. Now with the arrow keys
make the display read the password, "7". Press ENTER.
7.2.2 The Utility Menu is entirely separate from the Operations Menu but uses the same
LED display. Press CALL to step through the menu items.
Below is the cross-reference between menu items:
Operations Menu Utility Menu
Range Range Change
Output High Temperature Output 100% (5Vdc)
Output Low Temperature Output 0% (0Vdc)
Control Relay Setpoint 0-1mA / 0-5Vdc Adjust low
Control Relay Deadband 0-1mA / 0-5Vdc Adjust high
Alarm High 4-20 mA Output Adjust Low