Dräger Infinity Delta Instructions For Use Manual page 323

6. Press the Start/Stop key (
checking the gauge reading on the front of the unit to verify an adequate gas
supply.
NOTE: The calibration unit automatically cuts off the flow of reference gas after 20
minutes, but the gas flow can be stopped before that by pressing the
7. Access the tpO
8. Click on
or
— Press and hold the calibration key on the front of the tpO
two seconds.
— Calibration information appears on the right side of the menu. The moni-
tor sounds a tone when calibration is complete.
9. Remove the sensor from the calibration chamber, holding it away from
sources of CO
If the calibration is successful, the date and time of the calibration are displayed on the
tpO /CO menu, and the site timer, once it is enabled, starts counting down the timed
2 2
monitoring session.
NOTE: If you do not remove the sensor within 30 minutes after the start of
calibration, the sensor heater switches off and a new calibration is required.
Calibration typically takes 3 to 5 minutes. The monitor performs the following
functional checks:
— Temperature Test — Turns on the sensor heater and verifies the sensor heats
to the set temperature (±0.05 °C) within 3 minutes
— Range Test — Verifies the sensor produces voltages within acceptable ranges
when exposed to the reference gas
— Stability Test — Verifies the sensor produces stable voltages for at least 1
minute after exposure to the reference gas
VF8 D
) on the calibration unit to start the flow of gas,
/CO setup menu.
2 2
.
Start Calibration
. The monitor performs a final response test of the CO
2
/D XL/K
ELTA ELTA APPA
H
ARDWARE
key.
Start/Stop
/CO pod for
2 2
sensor.
2
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