12
INM MTL 130-0126 Rev 13
4 OPERATION
4.1 Switching on
4.1.1 K6050
This instrument is switched on by turning the front panel rotary switch to “On”. Turning the
switch to “Pump” additionally activates the internal sample pump.
The instrument is normally powered by its internal rechargeable batteries and these are
fully charged when dispatched from the factory. A mains (A.C.) powered switch-mode
power supply is supplied along with an adapter for a 12v vehicle outlet socket. When the
power supply is attached and powered up, the internal batteries are charged automatically,
irrespective of whether the instrument is on or off.
4.1.2 K1650
These instruments power up immediately power is applied to the supply terminals.
Figure 9 - K1650 Front Panel
4.2 Initialization
On power-up the screen will display details of the instrument’s name and software number.
This display will remain for a few moments, then the instrument will automatically enter
Measurement Mode and set itself to Range 3 (hydrogen in air). The concentration of gas in
the measurement chamber is displayed. If the sample is something other than air, hydrogen
or a mixture of the two, then the value shown will not be accurate or a fault code message
will be displayed – see Section 4.6.
In the measurement mode the display and the analogue outputs are continually updated with
the latest measured values.
NOTE
During initialisation the K1650’s 4 to 20mA output goes to 2mA to indicate an invalid
measurement. If the instrument is outside of its operating range (fault code displayed)
then the 4 to 20mA output goes to 3.7mA to indicate this. The K6050, which has 0 to 1V
analogue outputs, gives 0v during initialisation and 0V or 1V for fault conditions.
View Edit
Cal
Meas
Cal
Gas
2LA2LA1LA AL1
98.5 H
2
%
In Air
K1650 MTL Alternator Purge Monitor
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