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Doc. no. : HTMF_Kor_2016, Rev. 0
Issued date : 2016. 11
HITROL Co., Ltd
that zero can be output below the set range of the output. The input effective range is
0%–20%, and the default value is 10%.
d.
Psia
: This is for inputting the inside pressure of the duct in use. The input effective range
is 0–500 Psia, and the default value is 14.7 Psia. (It is used for measuring mass flow of the
gas.)
e.
AREA
: This is for inputting the area of the duct in use. The input effective range is 0.001–
9.999 ㎡, and the default value is 1.000 ㎡.
5. Procedures for Functional Test
5.1
Prepare a performance test report for the instrument subjected to the functional test.
5.2
Carry out wiring for the functional test of the thermal dispersion–type F/M.
5.3
After the wiring is completed, enter the value of the performance test report by using the
decade resistance box.
5.3.1
Initial resistance of the Sr: 1,000.00 Ω
5.3.2
Initial resistance of the Sa: 1,150.00 Ω
5.4
Apply power of 120 VAC 60 Hz, and allow warm-up for no shorter than 20 minutes before
the functional test.
5.5
Check the condition of the main board.
5.5.1
Check that the Run LED of the main board blinks at the intervals of approximately 1
second.
5.5.2
Check that the Error LED of the main board remains off.
5.6
Check the condition of the input board.
5.6.1
Check that the Active1 Error LED of the input board remains off.
5.6.2
Check that the Reference1 Error LED of the input board remains off.
5.7
Check the output.
5.7.1
Enter the resistance value of the Sa that corresponds to the output current to be
checked.
5.7.2
Check that the proper output current is measured for the Sa.
