Genesis SHERLOCK 102, Operation Manual

Page: 33 / 53

44-00-0297 SHERLOCK 102/202 REV. 4.1 05-02-15 34
This page and the next contain a brief overview of the "<CALI-
BRATION MENU>" of the Sherlock Control System. The
pages after these two contain specific instruction on calibrating
the Sherlock Monitoring System and its sensors.
The CALIBRATION MENU contains three basic functions:
CALIBRATE OXYGEN SENSOR
These screens are only shown if Oxygen sensor was selected
in the "CONFIGURATION" menu. Press
SELECT button.
The displayed setpoint value should begin to blink. Press
UP/DOWN arrow buttons to change the value. Press SELECT
button to accept this calibrated value. Press DOWN button to
next entry.
OXYGEN SENSOR ABSOLUTE READING
This reading is the actual raw reading produced by the sensor
before calibration. Its reading must be greater than zero This
reading can be used to check the proper cable connection.
ZERO CALIBRATION
These instructions apply to the refrigerant sensor(s) activated in
the "CONFIGURATION" menu. This function will allow the
user to factor out the sensor's designed " zero" and any ambient
effects on the sensor by reseting the currently displayed reading
to zero. Any lost signal due to the long run cable wiring is also
compensated. Follow this procedure for each sensor.
Each sensor will now produce a zero reading when zero ppm of
gas is detected.
SENSOR ABSOLUTE READING
This reading is the actual raw reading produced by the sensor
without the zero offset. Its reading must be greater than zero
(10-80). This reading can be used to check the proper cable con-
nection.
If the sensor is reading greater than 80, the sensor will not cali-
brate. Check for gas leak around the sensor. If no leak is found,
do the calibration on the sensor itself then do the Control sensor
calibration again.
UNDO (RESET) ZERO CALIBRATION
This function will clear the zero offset calibration for all sensors.
The sensor reading will be the same as ABS(ABSOLUTE) read-
ing. The reading will always be more than zero(10-25) Make
sure to calibrate each sensor to have the sensor reading at zero
level when no gas is detected.
Exit this menu and return to DEFAULT SCREEN.
SELECT/
CHANGE
SELECT/
CHANGE
SELECT/
CHANGE
<CALIBRATION MENU>
SELECT/
CHANGE
SELECT/
CHANGE
<CAL> CALIBRATE
LEAK SENSOR A
<CAL> CALIBRATE
O2 SENSR,%: 19.0
<CAL> CALIBRATE
CALIBRATE DONE
<CAL> OXYGEN SNR
ABS READ,% 21.0
<CAL> CALIBRATE
CONFIRM CAL.
<CAL> CALIBRATE
CALIBRATE DONE
<CAL> SNR A ABS
READ,PPM: 10
READING > 80 PPM
READING > 80 PPM
EXIT
SELECT/
CHANGE
SELECT/
CHANGE
CALIBRATION MENU
<CAL> UNDO ALL
SNR CALIBRATION
<CAL> UNDO ALL
CONFIRM UNDO
<CAL> UNDO ALL
UNDO CAL DONE
REPEAT FOR SENSOR B