USER MANUAL
400GD
16 / 20
MRU GmbH, D-74172 Neckarsulm
7
Appendix
7.1.
Technical data
Operating temperature
+5°C ... +50 °C
Rel. humidity, non-condensing
95%
Storage temperature
-20°C ... +60°C
Li-Ion internal battery pack, operating hours
(depending on sensor type used)
Li-Ionen
typ. 20h
Power supply
100 - 240 V / 5V DC / 500 mA
Weight
approx. 230g
Dimensions
50x25x135 mm
Housing material
PA6GF30
IP degree of protection
IP30
Display
45mm (1.8") TFT
Interface for battery charging and SW up-
date function
Mini-USB
Alarm
optical, acustic, vibration
7.2.
Sensors
Gas leak detection HC400
No. 11138
Calibration gas
CH4
Measuring range
0 .. 44000 ppm
Resolution
1 ppm
Response time (until alarm)
≤ 5s
operating principle
gas-sensitive semiconductor
cross sensitivities
Alcohols, hydrocarbons, solvents
Recommended test interval
weekly
Test gas
1000ppm CH4 in air (50%rel.humidity)
Heat up time
30 sec
Operating temperature
+5°C ... +50 °C
Storage temperature
-20°C ... +60°C
Gas leak detection HC401
No. 11591
Calibration gas
CH4, C3H8
Measuring range CH4
0 .. 44000 ppm
Measuring rangeC3H8
0 .. 17000 ppm
Resolution
1 ppm
Response time (until alarm)
≤ 5s
operating principle
gas-sensitive semiconductor
