User's Manual

34 - K4 b
2
User Manual
Warm up
The K4 b
2
uses O
2
and CO
2
heated sensors. We strongly recommend at least 45 minutes
warm-up time at an ambient temperature of 20°C. More time is necessary if the
environmental temperature is lower. Calibration or testing before warm-up time is
completed, can cause wrong results.
Warming-up the unit by main power
1. Connect the Charger Unit to the main power by the AC power cable.
2. Connect the power-supply cable both in the Charger Unit and K4 b
2
as shown
below and turn both the units on.
Turning on/off the portable unit
To turn the K4 b
2
on or off press the on/off key.
Connect the rechargeable battery
Plug the power supply cable into the battery socket as shown in the following
illustration.
International telemetric version USA and Japan Telemetric version
Sometimes you might need to change the battery during the test. To do this you must
change the battery in the shorter time possible. The Portable Unit does not transmit data
while it is not powered.
Warning: During testing make sure to change the battery as fast as possible, since a
long time could compromise the reliability of measurements.
sss
Important: In order to ensure
accurate gas measurements,
you must wait for a warming-
up
time before operating the K4
b². During this period the PU
must be turned on for at least
45 minutes.
sss
Warning: Supply K4 b
2
with
Charger Unit for warming up
only.