Fuji Electric ZSS-7, Инструкция по эксплуатации

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INZ-TN7ZSS-E
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4.1 Installation conditions
4.1.1 Installation conditions of receiver unit and transmitter unit
Select a location that meets the following conditions.
(1) Ambient temperature : A place where the temperature is within -20 to 55°C and there is no
sudden temperature change.
(2) Ambient humidity : A place where the humidity is 90% RH or lower not subjected to
condensation.
(3) Measured gas temperature : Refer to “1-1 (4) Measurable component and range” in APPENDIX
1. A place where the stack is not distorted or laser light axis is not
deflected by sudden temperature change.
(4) Measured gas pressure : ±10kPa
(5) Measured gas moisture : 50vol% or less (no condensation)
(6) Measured gas velocity : 25m/s or less (However, consultation is necessary for the environ-
ment where dust (1g/Nm
3
or more) or water (25vol% or more) ex-
ists.) (Prevention of dust deposition or dew condensation due to in-
crease in air purge flow rate is required)
(7) Dust : 5 to 15 g/Nm
3
or less (depending on the installation environment
conditions such as measurable components, device specification, op-
tical light path, particle diameter, and so on)
(8) Companion flange : Prepare the flange diameter selected by the ninth digit of the code
symbols. Also, when the purchase specification is provided, prepare
the flange diameter described in the specification.
(9) Air purge : Prepare the instrumentation air containing no oil or water. (Pressure:
0.5 to 0.7 MPa or more) If there is a possibility of containing oil or
water, install an oil filter or a mist filter. When the instrumentation
air cannot be supplied, install a compressor. Prepare N
2
for O
2
ana-
lyzer and CO+O
2
analyzer excluding for air purge version (of which
4
th
digit of code symbol is T or V).
(10) Air purge flow rate : 20L/min or more (depending on measured gas temperature, velocity,
pressure, moisture or dust) (One-side air purge flow rate (L/min)
≥
Gas velocity (m/s) × 10)
(11) Path lengths (diameter) : 0.5 to 10 m (0.5 to 5 m for CO+O
2
analyzer)
(12) Vibration : 0.5G or less (0.2G or less for frequency 20 to 40Hz)
(When the measured optical path length is 1m or less)
(13) A place with less corrosive gases
(14) A place accessible for maintenance and check
(Refer to “4.2 Mounting dimensions of receiver unit and transmitter unit”.)
(15) A place with less electrically induced disturbances such as high electric currents or sparks in the sur-
rounding.
(16) Light axis fluctuation range: Within 0.3°C (When a unit has dust measuring function and the path
length is 0.5m).
Note) When there is a possibility of deflecting the laser light axis or reducing the light quantity due to the
large vibration acceleration, contact the manufacturer before installation.
Note) When “Box Temperature Warning” is occurred under the influence of gas temperature, mount the
reducer to keep the receiver box and the transmitter box away from the stack.
Note) When you measure the high temperature gas of 500°C or more, install a pressure sensor at the place
where the air is purged to monitor. Measuring the high temperature gas without air purge may
cause damage to the analyzer.
Note) If you install the analyzer which air purge has not been performed, problems such as permanent
glass contamination and dust contamination are caused, and it may result in improper operation of
the analyzer. Regardless of whether or not the analyzer is operated, perform air purge before instal-
lation.
4.1.1 Installation conditions of receiver unit and transmitter unit