Auto Cal Timer Adjustment; Disable Internal Cal Timer; Remote Calibration Cycle Initiate; Remote Calibration Cycle Acknowledgment28 - EMS 1304 Installation And Operation Manual

Auto cal timer Adjustment

Under the flip down door, press the EDIT (ESC) button (the red Edit (ESC) LED will light). The message
display will read QUICK MENU. Press the ENTER key, then the EDIT  key 3 times or scroll down until the
Display reads AUTOCAL CYCL TMR. Press the ENTER key twice, the Edit Value Light will flash. Press and
hold the EDIT  or EDIT  key until the desired set point in hours is displayed, i.e. 24.00 equals 24 hour
intervals. Press the EDIT key 4 times to return to normal operation.

Disable internal cal timer

(Version "K" dated 11/28/2007 and up)
Set the cal cycle adjustment for 24.1 hours this will disable the internal clock from initiating a calibration check
cycle. The count down is still displayed but it has no effect. To start a calibration cycle in this mode use the

remote calibration cycle initiate.

Remote calibration cycle initiate
To have an external device cause the monitor to begin calibration cycle, connect a N.O. dry contact to terminal 8L
& 9. A momentary closure will initiate a 3-minute zero and a 3-minute span check cycle. Total time of calibration
check is 6 minutes.
Remote calibration cycle acknowledgment
Cal in progress - By dry contacts on terminal 4U (common) and 5U (NC). This contact remains closed until cal is
completed, i.e. both zero & span.
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