GRAPHTEC GL840 User Manual page 115

(1)-37 Other setting
The following settings can be performed.
Setting
Annotation text string
Program Inter-CH
calculation
Span setting
Waveform color setting
Thickness setting
Trace
Auto zero adjustment
Zero adjustment reset
[Zero point voltage value] Display the zero point.
CO2 sensor (GS-CO2: optional) setting
Performs the setting related to the connection of CO2 sensor.
The Setting screen is displayed at the end of the group by connecting the CO2 sensor and turning On the
GL840's power.
(1)-38 Input setting
This is used to select the input conditions.
Setting
Off
1ch CO2
2ch to 4ch No AMP
5ch to 8ch No AMP
Set the annotation (comment) displayed in the CH.
Set the contents of Program Inter-CH calculation.
Four arithmetic operations (addition (+), subtraction (-), multiplication (x), division (÷)) can be used for
the Program Inter-CH calculation.
* For details, refer to "<Inter-CH Op Settings>" in "(1)-6 Misc." in "3.4 Setting Menus".
Set the upper and lower limits of the span which the waveform is displayed.
0 to 31 for each of red, green, blue (RGB)
1 to 8 dots
This is used to set the waveform display.
The current input value is calculated as a zero point.
Reset the zero point.
The input signal is not measured. The waveform and digital display also are not performed.
Used to measure the CO2.
Used to measure the ultraviolet.
When connecting the two GS series and terminal / addapter using a branch adapter for GS, the
following combination is displayed.
Combination CH1 to 4
TH+LXUV TH
TH+CO2 TH
LXUV+CO2 LXUV
Symbols in the table are as follows:
• TH: Temperature and humidity sensor
• LXUV: Illumination / ultraviolet sensor
• CO2: CO2 sensor
CHAPTER 3 Settings and Measurement
Description
Description
CH5 to 8
LXUV
CO2
CO2
3-39