Yokogawa GD40 Gas Density Detector - Manual (Page 125)

<7. HYDROGEN PURITY / PARAMETER SETTING>
7-2
IM 11T3E1-01E
7.1 Setting Parameters
Subsections 7.1.1 to 7.1.4 show the setting parameters for each level.
7.1.1 Setting Parameters at Measurement Level
When turned on, the analyzer starts up in the measurement mode (<MEASURE>).
Table 7.1 Setting Parameters at Measurement Level
Mode/Setting parameter Display
Data to be Set
(or Conditions)
Remarks
Measurement mode
Indication of measurement value
Physical density
Compensated density
Hydrogen purity
Indication of message
Unit
Error symbol and number
Alarm mark and number
Indication of HOLD and FAIL
HOLD
FAIL
Selection of measuring range
Hydrogen purity
Substituents-concentration
Substituents-concentration
KG/M3
LB/FT3
KG/M3
LB/FT3
H2_AIR
H2_CO2
A_CO2
ERR.NO
ALM.NO
HOLD
FAIL
S_GAS
H2_AIR
H2_CO2
A_CO2
Set the unit in CODE 21.
Set the unit in CODE 21.
Select the item to be
measured with hydrogen
purity meter.
H
2
in AIR
H
2
in CO
2
AIR in CO
2
.
See Figure 7.2 for key operation.
The display shows the measuring range
selected in the measuring range selection
mode.
The unit is the one set in the service level.
Appears if an error occurs.
Appears if an alarm occurs.
Appears even during other modes.
Appears during a HOLD state.
Appears if a failure occurs.
See Figure 7.1 for key operation.
7.1.2 Setting Parameters at Operation Level
Press the [MODE] key and enter the password (XXX) to gain access to this level (see Figure 7.1
for key operation).
Table 7.2 Setting Parameters at Operation Level
Mode/Setting parameter Display
Data to be Set
(or Conditions)
Remarks
DISP mode
Physical density
Compensated density
Hydrogen purity
Sample gas temperature
Sample gas pressure
Analog output 1 (%)
Analog output 2 (%)
DISP
KG/M3
LB/FT3
KG/M3
LB/FT3
H2_AIR
H2_CO2
A_CO2
ºC
ºF
KPA
MPA
PSI
MA1%
MA2%
Set the unit in CODE 21.
Set the unit in CODE 21.
Set the unit in CODE 23.
Set the unit in CODE 20.
See Figure 7.2 for key operation.
Selection of parameters to be measured in
the measurement mode.
Read-only
Read-only
Read-only
Read-only
Calibration mode
Manual calibration MAN.CAL See Figure 10.2 for key operation.