Measuring Gas |
Carrier Gas |
Basic range |
Smallest range |
Smallest suppressed zero range |
Multi Gas Mode |
H2 |
N2 or air |
0% -100% |
0% -0.5% |
98% -100% |
Yes |
H2 |
Ar |
0% -100% |
0% -0.4% |
99% -100% |
Yes |
H2 |
He |
20% -100% |
20% -40% |
85% -100% |
On request |
H2 |
CH4 |
0% -100% |
0% -0.5% |
98% -100% |
On request |
H2 |
CO2 |
0% -100% |
0% -0.5% |
98% -100% |
On request |
He |
N2 or air |
0% -100% |
0% -0.8% |
97% -100% |
Yes |
He |
Ar |
0% -100% |
0% -0.5% |
98% -100% |
Yes |
CO2 |
N2 or air |
0% -100% |
0% -3% |
96% -100% |
Yes |
CO2 |
Ar |
0% -60% |
0% -10% |
- |
Yes |
Ar |
N2 or air |
0% -100% |
0% -3% |
96% -100% |
Yes |
Ar |
O2 |
0% -100% |
0% -3% |
96% -100% |
Yes |
Ar |
CO2 |
40% -100% |
- |
80% -100% |
Yes |
CH4 |
N2 or air |
0% -100% |
0% -2% |
96% -100% |
Yes |
CH4 |
Ar |
0% -100% |
0% -1.5% |
97% -100% |
Yes |
O2 |
N2 |
0% -100% |
0% -15% |
85% -100% |
Yes |
O2 |
Ar |
0% -100% |
0% -2% |
97% -100% |
Yes |
N2 |
H2 |
0% -100% |
0% -2% |
99,5% -100% |
Yes |
N2 |
Ar |
0% -100% |
0% -3% |
97% -100% |
Yes |
N2 |
CO2 |
0% -100% |
0% -4% |
96% -100% |
On request |
NH3 |
H2 |
0% -100% |
0% -5% |
95% -100% |
On request |
NH3 |
N2 |
0% -100% |
0% -10% |
60% -100% |
On request |
CO |
H2 |
0% -100% |
0% -2% |
99% -100% |
On request |
SF6 |
N2 or air |
0% -100% |
0% -2% |
96% -100% |
On request |
Dimensions without connectors; weight |
145mm x 80mm x 85mm; max. 1800g |
Power supply |
24V DC (18V to 36V), 700mA |
Ambient temperature range |
-5°C to 50°C, other on request |
Linearity |
< 1% of range |
Warm up time |
About 30min; 1h for small ranges |
Flow rate |
40l/h to 150l/h; 60l/h -80l/h recommended |
T90-time |
<1sec at flow rate higher 60l/h |
Noise |
< 1% of smallest range |
Drift at zero point |
< 2% of smallest range per week |
Repeatability |
< 1% of range |
Error due to change of ambient temperature |
< 1% of smallest range per 10°C |
Error due to change of flow at 80l/h |
< 1% of smallest range per 10l/h |
Gas pressure |
Max. 2MPa (20bar) |
Error due to change of pressure (above 800hPa abs.) |
< 1% of smallest range per 10hPa |
• Accurate and long term stable thermal conductivity measurement
• High sensitivity e.g. 0-0.5Vol.% H2 in N2 range; Low noise <10ppm H2 in N2
• Precise linearization for the gas mixtures as H2, He, CO2, CH4 in N2 or Ar and N2 in Ar on board
• Customized linearization with polynomial up to sixth order
• Multi Gas Mode allows sequential indication of up to 15 binary mixtures
• Isolated 4-20mA output, expandable; free set of start and end within 100 Vol.% range
• Classic 2-point calibration or simple one-gas calibration
• Free set of display indication (ppm or Vol.%) at a resolution up to 1ppm
• Cross sensitivity compensation by feed in of external signal and internal calculation
• Fast response with a T90-time of less than 1 sec (depending on flow rate)
• Pressure proof (20bar) and vacuum leak tight stainless steel (LF316i) gas duct
• Three isolated relays for indication of alarms and instrument status
• RS 232 excess to all values and parameters
• Digital output with 1ppm resolution over the whole 100Vol.% rangePC-based service program simplifies all settings, linearization and calibration
• Small and robust transmitter in Al-housing for field use (protection class: IP65)
• Dimensions: Width 145mm, Height 80mm (without connectors), Depth 85mm
• Power supply 18V to 36V DC / 700mA
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