OMG200N1.23
G200 Analyser Range
Page
48
©
Copyright 2010 Geotechnical Instruments (UK) Limited
11.0 Technical Specification
11.1 G200
G200
TECHNICAL SPECIFICATION
POWER SUPPLY
Battery type
Li Ion
Battery life
>10 Hours (8 hours with pump)
Battery lifetime
>300 Cycles
Battery charger
5v DC external power supply and internal charging circuit
Charge time
<3 Hours
Alternative power
USB connector
DC power supply
GAS RANGES
Gases measured
N
2
O
By custom dual wavelength infra-red
cell with reference channel
Range
N
2
O
0-1,000ppm
0-10,000ppm (leak detection mode)
Measurement
accuracy
Gas
N
2
O
Resolution: 1ppm
Accuracy: ±( 1.5% of range+ 2% of reading) at
reference conditions
1
Temperature dependence: ±2ppm /
o
C (typical at
100ppm N
2
O)
Pressure dependence: ±0.1% of reading/hPa
(typical at 100ppm N
2
O)
Response time, T
90
N
2
O
≤
40 seconds
1
Conditions during factory calibration, typically 20
o
C, 1000mBar
FACILITIES
Visual and audible alarm
User selectable
N
2
O and TWA
alarms
Communications
USB type B mini-connector, HID device class
Data storage
1000 reading sets + 270 events
PUMP
Flow
100cc/min typically (300cc/min MAX)