Page
32
of
36
OMSEM5000 Iss. 01
13
APPENDIX B
–
TECHNICAL SPECIFICATION
Target gas
Methane. The instrument is selective to the Methane.
Measurement ranges
1-10,000ppm
1% - 100% v/v (option)
Sensitivity
0.1ppm / 0.1%
Minimum detectable limit
0.3ppm
Accuracy
+/-0.7ppm for [1: 10ppm]
+/-10% relative up to 10,000
Response time
T90 = 2s
T90 = 3.5s with probe
Environmental
working
conditions
Humidity: 5% to 80% relative humidity (non-condensing)
Temperature: -25°C to +50°C
In a non-condensing atmosphere
Atmospheric Pressure: 1013mbar ±100mbar
Power supply
Specific Li ion rechargeable battery pack
3,7V
–
4000mA/h
Recharging duration: 4h30min
Battery life
10 hours at 20°C (with backlight activated)
8 hours at extreme temperatures with backlight activated
Case
Carbon reinforced polyamide with fiberglass
Dimensions: L x w x h = 229 x 97 x 109mm
Weight: 1.3Kg (in operation)
Protection level
IP65
Environmental
storage
conditions
(excluding
batteries)
Humidity: < 95% relative humidity
Temperature: -40°C to +60°C
Sampling flowrate
Typical 0.8 l/min.; [Min 0.6l/min- Max 1l/min.]
User interface
Large Display: matrix of 240x128
Jogdial: Scroll menu for a rapid and easy selection
2 Keys for a direct activation of the functions
Alarms
Threshold of the Methane concentration
Pump flow fail
Sound level of the buzzer
(30cm)
65 dB (A)
Status Indicators
Measurement mode
Battery level
Pump
Communication
Buzzer
GPS
Electrical connections
Multiplug for battery charger and for a communication with a
computer.
Equipped with a security ring.
Gas connections
Quick-connect gas inlet coupling with locking mechanism:
Quick-connect gas outlet coupling.
Carrying Straps
Synthetic band, 30mm
