Millwatch/Silowatch
Single Stream
User Guide
Page 24
17.5 Select the Units of Measurement
1) Use the down arrow to UNITS.
2) Press SETUP.
3) Use the arrow keys to change the value and
press SETUP to confirm.
4) To exit the SETUP menu press GAS READINGS.
17.6 Set the Automatic Calibration Times and
Calibration Gas Concentrations
Checking and entering the calibration gas concentration is essential. The
calibration gas concentration is shown on the certificate, which accompanies the
calibration gas cylinder.
1) Press the CAL button.
2) Use the arrows to change the displayed value to the entry code.
3) Press CAL again.
4) Select AUTOCAL and press CAL.
The calibration menu is now displayed.
5) To change the entries, press SETUP, change the value with the arrow keys
and press SETUP again.
TYPE
MANUAL
See below
TIMED TRIGGER Calibration is set by TIME TO NEXT CAL and CAL
INTERVAL values
EXT TRIGGER
Use an external calibration switch
OFF
Calibration is disabled
AIR SOLENOID AND GAS1 SPAN for LAND use only
CAL INTERVAL
The time between calibrations in hours (0 to 255 hours)
SETTLE TIME
Time allowed for calibration gas to reach a steady state
SPAN GAS
0 to 4000 ppm. Given on the calibration gas certificate
REPORT DELAY
The time required for the report relay to remain closed in order for
the recording or other device to acquire information. Default 20
seconds.
CLOP
TRACK or HOLD (outputs during a calibration)
CAL METHOD
2 POINT
MAINT RELAY
CAL IN
PROGRESS
MAINTENANCE
TIME OF NEXT CAL? DAY hour:minute
Use the arrow keys to change the day and then press SETUP, repeat
for hour and minute
ppm or mg/Nm
3
mg/Nm
3
= ppm 1.25
(STD = 0° C and 101.3 kPa)
