M&C TechGroup SP2006-H280_DIL Operator's manual - Manual (Page 22)

22
Gas sampling and gas conditioning technology 2-1.1.7.2-ME
15 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 probe 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 probe during opera-
tion. Due to 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 probe from the sample point, eg. above the ball valve.

Check the set temperature on the installed temperature controller (see manual 2-5.1ME).

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. Set the precision pressure reducer to the pressure specified
on the enclosed injector data sheet (see figure 13).
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.