MAN-0093 Rev 0 Oxygen Sensor
June 2008
Net Safety Monitoring Inc.
16
5.
Use
menu button
1(
Reed switch 1
) to increase a displayed value and
menu button 2
(
Reed switch 2
) to
cycle to the next digit.
6.
When the desired value is reached, exit by selecting
menu button 3
(
Reed switch 3
). Keeping selecting
“Exit” to fully exit the menu.
5.2.3 Calibrating with the Millennium II Transmitter
The need to accurately detect and monitor oxygen levels is also facilitated by the Millennium II Transmitter.
The controller also offers some flexibility in the use of calibration gas (air) value. If the calibration gas (air) is
not 20.9%, the transmitter will allow calibration to be performed with calibration gas (air) within the range of
18-24%. To select the calibration gas (air) value, enter the transmitter’s main menu and select ‘
cal. gas value’
and enter the value
.
Refer to MAN-0076 when navigating through menu options.
Follow the steps below for Calibration Procedure.
1.
Enter the main menu, first by pressing any key to get the
“enter main menu”
prompt, then press/select
menu button
1
or
Reed switch 1
to select
“yes”.
2.
When
“Calibrate Sensor?”
is displayed, select the enter key (
menu button 3
or
Reed switch 3
).
3.
When
“Calibrate Sensor #1?”
is highlighted, press the enter key (
menu button 3
or
Reed switch 3
) if
this is the sensor to be calibrated.
4.
If Sensor #2 is to be calibrated, select the down arrow key (
menu button 2
or
Reed switch 2
) to scroll to
“Calibrate Sensor #2?”
5.
Select the desired sensor to be calibrated (1 or 2) by activating the enter key (
menu button 3
or
Reed
switch 3)
.
6.
Select
“YES”
(
menu button 1
or
Reed Switch 1
) to confirm the selection.
7.
If the user wants to use a gas canister with the “
Z & Span”
option, apply 0.5 liter per minute air two
minutes prior to initiating calibration then select “
Z & Span”
using (
menu button 1
or
Reed Switch 1
).
The unit will first zero itself then display “
Apply 20.9 % air (or cal gas value)
and then go into
calibration mode.
8.
If “
Zero
” is selected the unit will zero itself then go into calibration mode. Ensure that surrounding air it
is free from contaminants if it is being used for calibration.
9.
“Cal Complete”
will be displayed when calibration is complete.
Note:
Air used for calibration can either be from the gas canister or surrounding air (clean air).
