Ulvac GI-M2 - Setting of Range Changeover; Setting of Range Hold; Range Hold and Recorder; Output

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9.3. Setting of Range Changeover
9.3.1. Setting of range changeover
Range changeover functions include the following two modes.
① Auto range mode
Changes over all pressure measurable ranges automatically.
② Range hold mode
Prohibit a range change to the pressure range that is lower than indication, the
BCD output, an analog output (only LIN mode). The pressure measurement
does not influence a set point output function, because it is performed in all
measure.
9.3.2. Setting of range hold
The range hold value is entered in the form of ×10.
The settable values are as follows:
GI-M2
GI-D7
GI-N8
Setting
range
－０ ～ －８ －１ ～ －７ －１ ～ －９
When the input of an invalid value, the value is not updated. [ Ｅｒｒ. １２ ] is displayed
on the segment indicator only in the front panel setting.
The value entered last will be saved from front panel or RS-232C.
9.3.3. Range hold and recorder output
The analog output using range hold for is as follows:
① ＬＩＮＥＲ MODE
② Linear outputs in proportio
(Example) When range hold value ×10
-3
is set
Pressure value
[Pa]
Displayed value
(3 digits) [Pa]
Analog output
(LIN) [V]
BCD output
[Pa]
５．００×１０
－２
５．００×１０
－２
５．００ ５．０×１０
－２
１．００×１０
－２
１．００×１０
－２
１．００ １．０×１０
－２
５．００×１０
－３
５．００×１０
－３
５．００ ５．０×１０
－３
１．００×１０
－３
１．００×１０
－３
１．００ １．０×１０
－３
５．００×１０
－４
０．５０×１０
－３
０．５０ ０．５×１０
－３
１．００×１０
－４
０．１０×１０
－３
０．１０ ０．１×１０
－３
５．００×１０
－５
０．０５×１０
－３
０．０５ ０．０×１０
－３
１．００×１０
－５
０．０１×１０
－３
０．０１ ０．０×１０
－３
５．００×１０
－６
０．００×１０
－３
０．００ ０．０×１０
－３
１．００×１０
－６
０．００×１０
－３
０．００ ０．０×１０
－３
③ Pseudo-logarithmic mode
Outputs are pseudo-logarithmic in all pressure ranges regardless of the range
hold value.
④ REC-HOLD mode
Outputs are in the REC-HOLD mode regardless of the range hold value.