22
TI 11B08A01-01E
(2) The detector is turned off.
In case of FID, FID with methanizer and FPD, the detector should be “Frame out” with
stopping the supply of make-up gas, combustion gas and combustion air. Then, wait for
over 4 hours.
(3) Each heater of the isothermal oven (or programmed temperature oven), LSV and FPD is
turned off.
(4) Wait until the oven temperature drops to near room temperature. Usually it takes over one
hour.
(5) The supply of power to the protection system is stopped.
(6) After the oven temperature drops, the supply of the protective gas (instrumental air) is
stopped.
IMPORTANT
In case of emergency, stop the supply of power immediately. In this case, it may damage to the
analyzer.
<Low pressure in the pressureized enclosure>
A. Electronics section (control unit, oven unit 1 to 3)
(1) When the internal pressure in the electronics section falls below 392 (Pa), the protection
system immediately shuts off the power supply to the control unit and oven unit 1 to 3.
(2) When the internal pressure described above returns to normal, the procedure starts
automatically from item (4) in <Power on>.
B. Each isothermal oven (or programmed temperature oven) in the oven unit 1 to 3
(1) When any of internal pressure in the oven falls below 392 (Pa), the control unit immediately
shuts off the power supply to the electronics section of the relevant oven.
(2) When the internal pressure in the oven returns to normal, the procedure starts automatically
at item (6) in <Power on>.
FM-Y, CSA-Y
<Power on>
(1) Protective gas (instrumental air) is supplied to the protective gas (instrumental air) inlet.
(2) The pressure value is checked if it is indicated the specified one at the pressure gauge.
(3) Wait for 21±3 minutes to keep the protective gas (instrumental air) supplied.
(4) Power is supplied to the electronics section of the control unit.
(5) Check if the “Elec. Press. Down” error is not outputted. When this alarm is outputted,
stop the supply of power. In this case, the procedure starts automatically described in “A.
Electronics section (control unit, oven unit 1 to 3)” in <Low pressure in the pressurized
enclosure>.
(6) When the internal pressure in the oven unit 1 to 3 exceeds 392 (Pa), purging to the oven
unit begins.
(7) After 9 ±2.5 minutes the purging, power is applied to the electronics section of the oven unit.
Then the hydrogen limiting unit, the heater and detector in the oven are ready for operation.
<Power off>
(1) The operation and the supply of sample to be measured are stopped.
(2) The detector is turned off.
In case of FID, FID with methanizer and FPD, the detector should be “Frame out” with
stopping the supply of make-up gas, combustion gas and combustion air. Then, wait for
over 4 hours.
(3) Each heater of the isothermal oven (or programmed temperature oven), LSV and FPD is
turned off.
Sep. 07, 2017-00
