biosystems PhD Lite User Manual

45
FRESH_AIR SPAN_CAL
GAS_VALUES
REMIND
IQ LINK EXIT
CAL LOCK
2. Use the navigation arrows to highlight
GAS_VALUES and press the MODE button to enter
the gas values screen.
CALIBRATION GAS
LEL 50.0%
EXIT
3. If the LEL calibration gas setting screen is shown,
press the right navigation arrow once to access the
calibration gas setting for the CO Plus sensor.
Depending on the existing calibration gas setting for the
CO Plus sensor, the calibration gas value will appear as
either CO or H
2
S.
CALIBRATION GAS
CO 50.0ppm
EXIT
or
CALIBRATION GAS
H
2
S 25.0ppm
EXIT
4. The right and left navigation arrows are used to
move back and forth between the type and the
amount of the calibration gas. To change the type
of calibration gas, move the cursor to highlight CO
or H
2
S.
CALIBRATION GAS
CO 50.0ppm
EXIT
Or
CALIBRATION GAS
H
2
S 25.0ppm
EXIT
5. The up and down navigation arrows may then be
used to toggle between CO and H
2
S. Once the
desired gas setting is shown, press the MODE
button to save the setting or move on to step 6 to
adjust the concentration of the calibration gas.
CALIBRATION GAS
CO 50.0ppm
EXIT
↑↓
CALIBRATION GAS
H
2
S 25.0ppm
EXIT
6. To change the concentration of CO or H
2
S used in
calibration, use the right navigation arrow to
highlight the concentration in parts-per-million.
Then use the up and down navigation arrows to
adjust the gas concentration.
CALIBRATION GAS
CO 50.0ppm
EXIT
↑
CALIBRATION GAS
CO 50.1ppm
EXIT
7. Press the MODE button when the appropriate gas
selection and concentration have been reached.
Save Changes?
YES NO CANCEL
8. Press the MODE button with YES highlighted to
save the new settings.
Cal Gas Values
Saved
Do not use multi-component
calibration gas mixtures containing both carbon
monoxide and hydrogen sulfide when calibrating a
PhD Lite with a CO Plus sensor installed.
Calibration of the CO Plus sensor with multi-
component calibration gas mixtures containing both
CO and H
2
S may lead to inaccurate and potentially
dangerous readings.
Biosystems multi-component calibration gas
mixtures containing both carbon monoxide and
hydrogen sulfide are labeled as “Not for use with
CO Plus sensors”.
With the CO Plus sensor, the
calibration gas setting determines whether the
instrument is configured for the direct reading of
CO, or for the direct reading of H
2
S. Calibration gas
corresponding to the direct reading requirement
must be used in the calibration of the instrument. If
carbon monoxide is chosen in the calibration gas
setting option, the display will show CO+ and
carbon monoxide must be used to verify accuracy.
Similarly, if hydrogen sulfide is chosen in the
calibration gas setting option, the instrument will
display H
2
S+ and hydrogen sulfide must be used to
verify accuracy. Use of the incorrect calibration gas
may lead to inaccurate and potentially dangerous
readings.
4.7.3 Calibration reminder:
The calibration reminder feature reminds the user when
a scheduled calibration is due. The calibration reminder
can be set by the user to an interval between 1 and 180
days and is automatically reset by a successful
calibration.
4.7.3.1 Changing the calibration reminder
To change the calibration reminder:
1. Enter the Calibration Menu as described above in
section 4.7.1.
FRESH_AIR SPAN_CAL
GAS_VALUES
REMIND
IQ LINK EXIT
CAL LOCK

biosystems PhD Lite Specifications

General

Brand	biosystems
Model	PhD Lite
Category	Security Sensors
Language	English