Yokogawa GD40 Gas Density Detector - Manual (Page 127)

<7. HYDROGEN PURITY / PARAMETER SETTING>
7-4
IM 11T3E1-01E
7.1.4 Setting Parameters at Service Level
Press the [*] key and enter the password (XXX) to select the service level. When you select this
level, the analyzer shows a Code No. promptly. Type the appropriate code number and press the
[ENT] key.
Table 7.4 Setting Parameters at Service Level
Code
No.
Item Display
Data to be Set
(or Conditions)
Remarks
01 Setting of hold during maintenance
Hold enable/disable
Setting of preset hold value
*M_HLD
*PR.SET
· Disable : 0
· Enable (value immediately
before) : 1
· Enable (preset value) : 2
-10.0 to 110.0
See Figure 7.8 for key operation.
If “preset value” is selected in the
preceding parameter.
02 Setting of hold against errors
Hold enable/disable
Setting of preset hold value
*E_HLD
*PR.SET
· Disable : 0
· Enable (value immediately
before) : 1
· Enable (preset value) : 2
-10.0 to 110.0
See Figure 7.9 for key operation.
If “preset value” is selected in the
preceding parameter.
03 Setting of hydrogen purity range
Hold enable/disable
Setting of the preset hold value
*H_HLD
*PR.SET
· Disable : 0
· Enable (value immediately
before) : 1
· Enable (preset value) : 2
-10.0 to 110.0
See Figure 7.10 for key operation.
If “preset value” is selected in the
preceding parameter.
04 Setting of output-smoothing constants *SMOTH 00 to 60 See Figure 7.11 for key operation.
05 Setting of contact outputs status *CNTCT 00 to 15 See Figure 7.12 for key operation.
10 Setting of pressure compensation
Enable/disable/fixed value
Setting of fixed value for pressure
correction
*P.COMP
*P.FIX
· Disable: 0
· Enable (measured value) : 1
· Enable (fixed value) : 2
0.10 to 999.99kPa, 0.0001 to
9.9999MPa, 0.015 to 99.999 psi
See Figure 7.13 for key operation.
If “fixed value” is selected in the
preceding parameter.
11 Setting for measurement compen-
sated density
Setting of reference temperature
Setting of reference pressure
*C.D.TMP
*C.D.PRS
-20.0 to 80.0 °C, -4.0 to 176.0 °F
0.10 to 999.99kPa, 0.0001 to
9.9999MPa, 0.015 to 99.999 psi
See Figure 7.14 for key operation.
12 Setting of gas pressure
Setting of zero-gas pressure
Setting of span-gas pressure
*Z_PRS
*S_PRS
0.01 to 999.99kPa, 0.0001 to
9.9999MPa, 0.015 to 99.999 psi
0.10 to 999.99kPa, 0.0001 to
9.9999MPa, 0.015 to 99.999 psi
See Figure 7.15 for key operation.
14 Setting for remote semi-automatic
calibration
*REMOT · Disable : 0
· Enable : 1
Open contact : AIR in CO
2
Closed contact : H
2
in CO
2
See Figure 7.16 for key operation.
20 Selection of pressure unit *PRES.U · kPa : 0
· MPa : 1
· psi : 2
See Figure 7.17 for key operation.
21 Selection of density unit *DENS.U · kg/m 3 : 0
· lb/ft 3 : 1
See Figure 7.18 for key operation.
23 Selection of temperature unit *TEMP.U · °C : 0
· °F : 1
See Figure 7.19 for key operation.
31 Showing/hiding of negative measured
values (-)
*MINUS · Show : 0
· Hide : 1
See Figure 7.20 for key operation.