YOKOGAWA OX100, User Manual

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Appendix
App.-3
IM 11M10A01-01E
3. Operating Procedures
3.1 Starting Operation
Before starting the operation of the sampling unit, make sure to power down the OX100 Series
oxygen analyzer. Take the following steps to start operating the unit.
(1) Mount an OX100 Series sensor to the sensor connector of the sampling unit until it stops
against the end. Pull out the sensor to 1-2 mm front and tighten the locknut firmly with
fingers. The locknut should be “finger tight” only, do not use a wrench for tightening.
(2) Completely open both stop valves, sampling gas intake and gas vent.
(3) Turn off the power switch of the unit and connect to a voltage conforming to the
specification.
(4) Open the flow regulating valve of the flowmeter and the needle valve on the front completely
by turning the valves counterclockwise completely.
(5) Turn on the power switch of the unit. The suction pump starts working.
(6) If the flowmeter reads below 0.5 l/min, close the needle valve on the front gradually by
turning it clockwise until the flowmeter reads 0.5 l/min. If the flowmeter reads over 0.5 l/
min, close the flow regulating vale of the flowmeter gradually by turning it clockwise until the
flowmeter reads 0.5 l/min.
(7) Turn on the power of the OX100 Series oxygen analyzers.
3.2 Stopping Operation
Take the following steps to stop operating the unit.
(1) Remove power from the OX100 Series oxygen analyzers.
(2) Turn off the power switch of the sampling unit.
(3) Close both stop valves for sampling gas intake and for gas vent completely by turning the
valves clockwise completely.
4th Edition : Oct. 23, 2019-00