ANNEX
.........................................................................................................................................................................................................
...............................................................................................................................................................................................................
Manual EMC 500 · EN01 · 2008-02
50
Supply
Switching power supply with 40 kHz cycle. All secondary voltages are
electrically isolated. Charger for standby battery.
Standard version:
24 VDC
21 V to 27 V
Special version:
230 VAC
-10% +6%
Power requirement:
ca. 31 W
Rack-mounting unit
Dimensions:
Height 3 HE
Width 213 mm
Depth 295 mm
Weight excl. battery:
approx. 3.2 kg
Measuring element
Measuring ranges (natural gas)
secondary metering
fiscal metering
natural gas / other fuel gases natural
gas
Superior calorific value:
7 – 14 / 2 – 25 kWh/Nm
3
8.4 – 13.1 kWh/Nm
3
Standard density:
0.65 – 1.3 / 0.3 – 2 kg/Nm
3
0.71 – 0.970 kg/Nm
3
CO2 content:
0 – 20 / 0 – 20 mol%
0 – 5 or 0 – 20 mol%
Wobbe index:
8 – 16 / 3 – 25 kWh/m
3
Inferior calorific value:
7 – 14 / 2 – 25 kWh/m
3
Methane number (option)
40 – 100 / –
The calculated methane number is only valid within the following
ranges:
Hs: 8.33 – 12.5 kWh/m
3
, rho,n: 0.7 – 0.9 kg/m
3
and CO2: 0 – 5 mol%.
Accuracy (natural gas):
±0.5% of the measured value for standard denity and superior calorific
value
±0.5 mol% (absolute) for CO
2
content
With natural gases which have been conditioned with air (max. 20%)
the measuring error for the standard density may reach ±1%.
Response times:
T50: < 30 s
T90: < 60 s
Ambient temperature:
-20°C to +55°C
Power supply:
24 VDC or 230 VAC or 115 VAC
Power requirement:
100 W
Dimensions:
B x H x T = 475 x 720 x 340 mm
Degree of protection:
IP 54 (Ex design)
IP 43 (Non-Ex design)
Inlet pressure range:
0.5-3.0 bar
Gas consumption:
max. 15 N
/h
珠海司福斯特科技有限公司
