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Address: Laishui County, Baoding City, Hebei Province , China.
Phone: +86-13733399896
TEL: +86-312-5845156
E-mail: lstcgm@163.com
GD-708 ultraviolet phototube, ultraviolet photosensitive tube, ultraviolet detector, flame detection, fire alarm
Classification:
CONTACT
Phone: +86-13733399896
Tel: +86-312-5845156
E-mail: lstcgm@163.com
Products Details
GD-708 type (foreign corresponding models R1868, P578)
GD-708 typephotosensitive tube is a cold cathode gas-filled Diode.
This tube has the characteristics of low working voltage, wide spectral response range, good sunlight blindness, high sensitivity and fast response, etc. It is mainly used in ultraviolet flame detection and monitors.
a, external dimensions
Photosensitive tubeHeight (H) (30±2)mm
Photosensitive tubeOuter diameter (D) < span>Φ(19±1)mm
Pin length (L) 8mm
b, main parameters
1, spectral response range185nm～290nm
2, peak wavelength210nm
|
Parameters |
Unit |
Minimum |
Maximum |
|
Anode voltage |
V |
220 |
300 |
|
Peak current |
mA |
|
4 |
|
Average output current |
mA |
|
2 |
|
Ambient temperature |
°C |
-30 |
80 |
c, working conditions and typical characteristics (25℃)
|
Parameters |
Unit |
Minimum |
rated |
Maximum |
|
Starting voltage |
V |
|
|
195 |
|
Pipe pressure drop |
V |
|
|
190 |
|
Working voltage range |
V |
220 |
260 |
300 |
|
Average output current |
mA |
|
1 |
|
|
Sensitivity |
cps |
|
1000 |
|
|
Background (count rate) |
cps |
|
|
10 |
|
Average life span |
h |
|
10000 |
|
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