Fuji Electric ZSS-8 Series, Instruction Manual

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INZ-TN8ZSS-E
6.2.2 Span calibration
(1) If the power is OFF, turn it ON.
(2) Check if the flow of span gas is approximately 1.5 to 2.0 L/min.
(3) Display the “Span Calibration” screen.
(4) Point the to “Component”, and press the
key.
(5) Press the key or the key to select the measured gas component to be span-calibrated.
When there is only one component, it is not necessary to select.
(6) Point the to “Cell Length”, and press the
key.
(7) Enter the length of calibration gas cell. Standard cell length is 1000mm. (When the range is low con-
centration, the length of calibration gas cell can be either 500mm or 200mm.)
(8) Point the to “Cal.Gas Value”, and press the key.
(9) Enter the concentration displayed on the gas cylinder.
(10) Point the to “Gas Temp.”, and press the
key.
(11) Connect the thermometer to the pipe. When output signal (4 to 20mA) is entered in the AI terminal of
the control unit, read the temperature value on the “Measurement” screen and enter the value. When the
range is low concentration, the value may be affected by gas temperature.
(12) Enter the value in “Gas Press.” in the same manner of “Gas Temp”.
(13) See the value of “Meas.” At the “Span Calibration” screen, and make sure that the value is not com-
pletely different from that of “Cal.Gas Value”, and the indication value is stable. For easily-absorbed
gases such as HCl, it requires a certain length of time to be stabilized. It takes 5 minutes until the gas is
stabilized at the earliest, and it may not be stabilized even an hour, depending on the diameter, length of
exhaust tube, the gas cylinder and regulator.
(14) Point the to “Span Cal.Start” and press the key to start span calibration.
(15) “Span Cal.Start” blinks for about 30 seconds.
(16) When the calibration is completed, the cursor moves to “Cal.Finish”, and the current date is displayed
at “LastCal.Day”. When the date is updated, you can move the cursor. If there are two components to
be calibrated, repeat the steps from 5 to 16.
ENT
2018-04-01
12:00:00
Span Calibration
2018/01/01
00.12
1000 mm
ppm
0010.02
ppm
0025
℃
kPa
HC
ℓ
- 00.50
Span Cal.Start
Cell Length
LastCal.Day
Cal.Finish
Meas.
Cal.Gas Value
Gas Temp.
Gas Press.
Component