Measuring ranges | 4, switchable internally and externally; autoranging is also possible |
Smallest possible measuring span (referred to 1000 hPa absolute sample gas pressure, 0.5 l/min sample gas flow and 25 °C ambient temperature, smallest possible measuring span with heated version: 0.5% (< 65 °C); 0.5 … 1% (65 … 90 °C); 1 … 2% (90 … 130 °C) | 0.5% v/v 2% v/v or 5% v/v O2 |
Largest possible measuring span | 100% v/v O2 (for a pressure over 2000 hPa: 25% v/v O2) |
Measuring ranges with suppressed zero | Any zero point is possible between 0 and 100% v/v as long as a suitable reference gas is used (see Table 1 in „Function“) |
Position of use | Front panel vertical |
Conformity | CE identification EN 50081-1, EN 50082-2 |
Design, enclosure | |
Degree of protection | IP65 according to EN 60529, gas restricted breathing according to EN 50021 |
Weight | Approx. 28 kg |
Electrical characteristics | |
Power supply | 100 to 120 V AC (rated range 90 V to 132 V), 48 to 63 Hz or 200 to 240 V AC (rated range 180 V to 264 V), 48 to 63 Hz |
Power consumption | Approx. 35 VA, approx. 330 VA with heated version |
EMC interference immunity (ElectroMagnetic Compatibility) | According to standard requirements of NAMUR NE21 (08/98), EN 61326, EN 50270 (with gas warning unit) |
Electrical safety | According to EN 61010-1 |
| Overvoltage category II |
| Overvoltage category III |
Fuses (units wihout heating) | |
| F3: 1T/250; F4: 1T/250 |
| F3: 0.63T/250; F4: 0.63T/250 |
Fuses (units wih heating) | |
| F1: 1T/250; F2: 4T/250 F3: 4T/250; F4: 4T/250 |
| F1: 0.63T/250; F2: 2.5T/250 F3: 2.5T/250; F4: 2.5T/250 |
Gas inlet conditions | |
Permissible sample gas pressure | |
| 500 … 1500 hPa absolute |
- For analyzers with piping
| 500 … 3000 hPa absolute |
- For analyzers with piping, Ex version
| |
| 500 … 1160 hPa absolute |
| 500 … 3000 hPa absolute |
| |
| < 165 hPa above environment |
| Max. 250 hPa above environment |
Sample gas flow | 18 … 60 l/h (0.3 … 1 l/min) |
Sample gas temperature | 0 … 50 ?C (unheated) 15 °C over temperature analyzer section (heated) |
Sample gas humidity | < 90 % relative humidity |
Time response | |
Warm-up period | With ambient temperature < 30 min (maximum accuracy achieved after 2 hours) |
Response time | T90 <1.5 s |
Damping (electric time constant) | 0 … 100 s, programmable |
Dead time (purging time of gas path in analyzer at 1 l/min) | Approx. 0.5 s |
Time for internal signal processing | < 1 s |
Pressure correction range | |
Pressure sensor | |
| 500 … 2000 hPa absolute |
| 500 … 3000 hPa absolute |
Measuring response (referred to 1000 hPa absolute sample gas pressure, 0.5 l/min sample gas flow and 25 °C ambient temperature) |
Output signal fluctuation | < 0.75% of smallest possible measuring range specified on rating plate with an electronic time constant of 1 s (corresponds to ± 0.25% with 2?) |
Zero drift | < 0.5%/month of smallest possible measuring span specified on rating plate |
Measured-value drift | < 0.5%/month of respective measuring span |
Repeatability | < 1%/ month of respective measuring span |
Minimum detectable quantity | 1% of current measuring range |
Linearity error | < 1%/ month of respective measuring span |
Influencing variables (referred to 1000 hPa absolute sample gas pressure, 0.5 l/min sample gas flow and 25 °C ambient temperature) |
Ambient temperature | < 0.5%/10 K referred to the smallest possible measuring span according to rating plate, with measuring span 0.5%: 1%/10 K |
Sample gas pressure (with air (100 hPa) as reference gas, a correction of the atmospheric pressure fluctuations is only possible when the sample gas is vented to ambient air) | Without pressure compensation: < 2% of measuring span/1% change in pressure with pressure compensation: < 0.2% of measuring span/1% change in pressure |
Residual gases | Deviation in zero point corresponding to paramagnetic or diamagnetic deviation of residual gas |
Sample gas flow | < 1% of smallest possible measuring span according to rating plate with a change in flow of 0.1 l/min within the permissible flow range; heated version up to double error |
Power supply | < 0.1% of output signal span with rated voltage ± 10% |
Electric inputs and outputs | |
Analog output | 0/2/4 … 20 mA, floating; max. load 750 ? |
Relay outputs | 6, with changeover contacts, freely selectable, e.g. for range identification; loading capacity: 24 V AC/DC/ 1 A, floating |
Analog inputs | 2, designed for 0/2/4 … 20 mA, for external pressure sensor and correction of influence of residual gas (correction of cross interference) |
Binary inputs | 6, designed for 24 V, floating, freely-selectable, e.g. for range switching |
Serial interface | RS 485 |
Options | Autocal function with 8 binary inputs and 8 relay outputs; also with PROFIBUS PA or PROFIBUS DP |
Ambient conditions | |
Perm. ambient temperature | -30 … +70 °C during storage and transport, +5 to +45 ?C during operation |
Permissible humidity | < 90% relative humidity as annual average, during storage and transport (dew point must not be fallen below) |