M&C TechGroup DIL-1_(H) Operator's manual - Manual (Page 22)

22
Gas sampling and gas conditioning technology 2-1.1.7.6-ME
14 INITIAL STARTING
Prior to initial use, system and process-specific safety measures must be observed.
The relevant safety requirements and procedures for the medium to be sampled must be heeded.
W A R N I N G !
The supply of gas to the injectors is only allowed when the heated
dilution unit has reached its operating temperature (see technical
data).
Prior to initial use, make sure that the mains voltage corresponds
to the voltage indicated on the type plate!
Do not touch the surface of the heated dilution unit during opera-
tion. Due tp its high surface temperatures, it may cause burns. Pro-
tective gloves must be worn and the dilution unit must be protected
against unauthorised access!
The following step-by-step procedure is recommended:

If possible, separate the dilution unit from the sample point, eg. above the ball valve.

In case of heated versions, check the set temperature on the installed thermostat.
N O T E !
If the set temperature on the capillary controller should be reduced
by more than 30°C in one step, the excess temperature cut-off on
the thermostat is activated (for re-starting press the reset button).

For heated versions, switch on the mains voltage.
N O T E !
The total heating time is about 2 hours. After about 1 hour, the
lower threshold value ( 30°C below set value) is exceeded.

Open the valve for the dilution gas (for heated version: wait until the complete dilution unit is
heated, approx. 2 h). Set the precision pressure reducer to the pressure specified on the enclosed
injector data sheet (see figure 9).
N O T E !
For safety reasons, the low pressure gauge must show a low pres-
sure of >-0,6 bar. With a low pressure of < -0, 6 bar, the critical ori-
fice will not function properly. If the necessary low pressure will
not be reached, the dilution gas supply pressure must be in-
creased.

The following table shows an extract from the injector data sheet.