Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/new/cat.php on line 184
OXYMAT 61, 19" rack unit |
|
General information |
|
Measuring ranges |
4, internally and externally switchable; autoranging is also possible |
Smallest possible span(relating to sample gas pressure 1 000 hPa absolute, 0.5 l/min sample gas flow and 25 °C ambient temperature) |
2 vol. % or 5 vol. % O2 |
Largest possible measuring span |
100 vol. % O2 |
Measuring ranges with suppressed zero point |
Any zero point within 0 ... 100 vol.% can be implemented, provided that a suitable reference gas is used |
Operating position |
Front wall, vertical |
Conformity |
CE mark in accordance with EN 50081-1, EN 50082-2 |
Design, enclosure |
|
Degree of protection |
IP20 according to EN 60529 |
Weight |
Approx. 13 kg |
Electrical characteristics |
|
Power supply |
100 … 120 V AC (nominal range of use 90 … 132 V), 47 … 63 Hz or |
Power consumption |
Approx. 37 VA |
EMC (ElectromagneticCompatibility) |
In accordance with standard requirements of NAMUR NE21 (08/98) |
Electrical safety |
According to EN 61010-1, overvoltage category III |
Fuse values |
100 ... 120 V: 1.0 T/250 200 ... 240 V: 0.63 T/250 |
Gas inlet conditions |
|
Permissible sample gas pressure |
|
|
800 … 1 200 hPa absolute |
|
Atmospheric pressure ±50 hPa |
Sample gas flow |
18 … 60 l/h (0.3 … 1 l/min) |
Sample gas temperature |
Min. 0 to max. 50 °C, but above the dew point |
Sample gas humidity |
< 90% relative humidity |
Reference gas pressure (high-pressure version) |
2 000 ... 4 000 hPa above sample gas pressure, but max. 5 000 hPa absolute (version without reference gas pump) |
Reference gas pressure (low-pressure version) with external pump |
Min. 100 hPa above sample gas pressure |
Dynamic response |
|
Warm-up period |
At room temperature < 30 min (the technical specification will be met after 2 hours) |
Delayed display (T90) |
3.5 s |
Damping (electrical time constant) |
0 … 100 s, parameterizable |
Dead time (purging time of the gas path in the unit at 1 l/min) |
Approximately 0.5 ... 2.5 s, depending on version |
Time for device-internal signal processing |
< 1 s |
Pressure correction range |
|
Pressure sensor internal |
500 … 2 000 hPa, absolute |
Measuring response(relating to sample gas pressure 1 013 hPa absolute, 0.5 l/min sample gas flow and 25 °C ambient temperature) |
|
Output signal fluctuation |
< ± 0.75% of the smallest possible measuring range according to rating plate, with electronic damping constant of 1 s (corresponds to ±0.25% at 2 ) |
Zero point drift |
< ± 0.5%/month of the smallest possible span according to rating plate |
Measured-value drift |
< ±0.5 %/month of the current measuring range |
Repeatability |
< 1% of the current measuring range |
Detection limit |
1 % of the current measuring range |
Linearity error |
< 1% of the current measuring range |
Influencing variable(relating to sample gas pressure 1 013 hPa absolute, 0.5 l/min sample gas flow and 25 °C ambient temperature) |
|
Ambient temperature |
< 2 %/10 K with span 5% |
Sample gas pressure (with air (100 hPa) as internal reference gas supply, correction of the atmospheric pressure fluctuations is only possible if the sample gas can vent to ambient air.) |
|
Accompanying gases |
Deviation from zero point corresponding to paramagnetic or diamagnetic deviation of accompanying gas (see table) |
Sample gas flow at zero point |
< 1% of the current measuring range according to rating plate with a change in flow of 0.1 l/min within the permissible flow range |
Power supply |
< 0.1% of the current measuring range with rated voltage ± 10% |
Electrical inputs and outputs |
|
Analog output |
0/2/4 … 20 mA, isolated; max. load 750 |
Relay outputs |
6, with changeover contacts, freely parameterizable, e.g. for measuring range identification; load: 24 V AC/DC/1 A, potential-free |
Analog inputs |
2, dimensioned for 0/2/4 … 20 mA for external pressure sensor and accompanying gas influence correction (correction of cross-interference) |
Binary inputs |
6, designed for 24 V, isolated, freely parameterizable, e.g. for measuring range switchover |
Serial interface |
RS 485 |
Options |
AUTOCAL function with 8 additional binary inputs and relay outputs, also with PROFIBUS PA or PROFIBUS DP |
Climatic conditions |
|
Permissible ambient temperature |
-30 … +70 °C during storage and transportation |
Permissible humidity |
< 90% relative humidity as annual average, during storage and transportation (must not fall below dew point) |