GRAPHTEC GL840 - Page 114

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CHAPTER 3 Settings and Measurement
Illuminance / Ultraviolet Sensor (GS-LXUV: optional) setting
Performs the setting related to the input to the illumination / ultraviolet sensor.
The Setting screen is displayed at the end of the group by connecting the illumination / ultraviolet sensor and
turning On the GL840’s power.
(1)-34 Input setting
This is used to select the input conditions.
Setting Description
Off The input signal is not measured. The waveform and digital display also are not performed.
1ch ILLUM. Used to measure the illuminance
2ch UV Used to measure the ultraviolet.
3ch ACC. ILLUM. Used to measure the accumulated illuminance.
4ch ACC. UV. Used to measure the accumulated ultraviolet.
5ch to 8ch No AMP When connecting the two GS series and terminal / addapter using a branch adapter for GS, the
following combination is displayed.
Combination CH1 to 4 CH5 to 8
TH+LXUV TH LXUV
TH+CO2 TH CO2
LXUV+CO2 LXUV CO2
Symbols in the table are as follows:
TH: Temperature and humidity sensor
LXUV: Illumination / ultraviolet sensor
CO2: CO2 sensor
(1)-35 Range setting
This is used to select the illuminance range to be measured. The ultraviolet and accumulated ultraviolet ranges
are xed.
Setting Description
ILLUM. 2000, 20000lx, 200klx (operates in conjunction with 3ch)
UV 30mW/cm
2
xed range
ACC. ILLUM. 2000, 20000lx, 200klx (operates in conjunction with 1ch)
ACC. UV. 30mW/cm
2
xed range
(1)-36 EU setting
The unit of Illumination/ultraviolet is converted.
Refer to “(1)-5 EU (Scaling settings)” in “3.4 Setting Menus”.
There is no “EU Function” for accumulated illuminance and accumulated ultraviolet.
Even if the scaling setting is applied to the original measured value of CH, the accumulated illuminance is
not reected in the accumulated illuminance CH.