7
II. Technical data
Range of measurement
（
SF
6
）：
0.01ppm
～
500ppm
（
Volume ratio
）
Response time
：
not more than 3 seconds
Indication pattern
：
crystal digital display harmony, light signal alarm
Setting range of alarming
：
0.01ppm
～
500ppm
（
Volume ratio
）
Pumping speed of vacuum pump 0.5 litre/second
Length of the vacuum tube
：
4 m
Continual working time
：
not more than 3 hours
Working condition
：
alternating current power supply 220V 50Hz
Environment temperature 7
℃
-40
℃
Relative humidity not more than 85%
Rate of work
：
approx. 180W
Total weight
：
approx. 30kg
III. Product structure
1.The layout of each control unit on the instrument panel is shown in the
figure (1)
