Products Details

GD-35 type (foreign corresponding model R2868)

GD-35 type photosensitive tube is a glass structure, cold cathode and gas-filled diode. GD-35 is one of the main models of our company. It has long-term inventory, which has obvious price advantages and flexible business methods.

The tube has the characteristics of high sensitivity and fast response, and it can detect 185 to 260 different narrow spectral sensitive sources. It has a small volume and a wide sensitivity angle (directivity), and can quickly and accurately detect the weak ultraviolet rays emitted from the flame. Mainly used in ultraviolet flame detectors, electric spark monitoring and ultraviolet measurement.

1. Dimensions

Photosensitive tube height (H) (36)mm(max)

Outer diameter of photocell (D) Φ(9±1)mm

Pin length (L) 20mm

2. Main parameters

a. Spectral response range 185~260nm

b. Peak wavelength 210nm

Parameter Unit

MIN

MAX

Anode voltage

V

300

350

Peak current

mA

 

3

Average output current

mA

 

1

Ambient temperature

-20

65

c. Working conditions and typical characteristics (25℃)

Parameter Unit

MIN

Rated

MAX

Starting voltage

V

 

 

220

Pipe pressure drop

V

 

 

200

Pipe pressure drop

V

300

325

350

Average output current

mA

 

0.3

 

Sensitivity

Cpm

 

5000

 

Background (count rate)

Cps

 

 

10

Average life span

H

 

10000

 

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