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IM 11M10A01-03E
5-3
5. Component Functions
5.3
Sampling Unit (Optional)
The sampling unit comprises membrane filters, suction pump, flowmeter and activated
carbon filter to absorb organic solvents. When a sample gas contains organic solvents,
use this sampling unit to filter out such solvents. The expected life of the activated
carbon filter is approximately 50 hours when a sample gas contains 500 ppm of isopro-
pyl alcohol and flows at 500 ml/min.
Used eight hours a day, suction pump life will be approximately one year.
F5301.EPS
Disk filter : K9424GQ
Sample Outlet, Rc1/4
Power Connector
Sampling Conditions
?
Pressure at sampling point
: 1013
6
40 hPa abs
?
Sample gas flow rate
: 500
6
100 ml/min
?
Pressure at sample outlet
: 1013
6
40 hPa abs
?
Gas temperature
: 50
8
C max.
?
Organic solvent content
: ppm to a few percentage
?
Dust content
: 5 mg/Nm max.
?
Power supply
: 100 to 240 V, 50/60 Hz
?
Piping connection
: Rc1/4
Flowmeter
Sensor Connector
(for 8 mm O.D.)
Needle Valve
OX102 Sensor
Activated
Carbon Filter
Switch
3
Sample Inlet, Rc1/4
: Rc 1/4
F5302.eps
Sample Gas
Inlet
Sample Gas
Outlet
Disk Filter
Pump
Needle Valve
Activated Carbon Filter
Felt Filter
Switching Power Supply
Flowmeter,
500 ml/min
Switch
Power Supply
Sensor
Insertion Port
: Provided by customer
(Stop valves must be installed at the sample gas inlet and outlet.)
(K9424GQ)
(K9346WH)
Figure 5.3 Sampling Unit