| General (following DIN EN 61207 / IEC 1207. All data referred to binary gas mixture H2 in N2) |
| Measuring ranges | 4, switchable internally and externally; autoranging is also possible |
| Largest possible measuring span | 100% H2 (smallest span see „Function“) |
| Measuring ranges with suppressed zero | Any zero point within 0 to 100% can be achieved; smallest possible measuring span 5% H2 |
| Position of use | Front panel vertical |
| Conformity | CE identification EN 61326/A1, EN 61010/1 |
| Design, enclosure | |
| Degree of protection | IP20 according to EN 60529 |
| Weight | Approx. 10 kg |
| Electrical characteristics | |
| EMC (ElectroMagnetic Compatibility) interference immunity (all signal wires must be shielded; variations of up to 4% of the smallest range may appear in ranges with strong electromagnetic interferences) | According to standard requirements of NAMUR NE21 (08/98) |
| Electrical safety | According to EN 61010-1; overvoltage category II |
| Power supply (see rating plate) | 100 -10 % … 120 V AC +10 %, 48 … 63 Hz or 200 -10 % … 240 V AC +10 %, 48 … 63 Hz |
| Power consumption | Approx. 20 VA |
| Fuses | 100 ... 120 V: 1.0T/250 200 ... 240 V: 0.63T/250 |
| Gas inlet conditions | |
| Sample gas pressure | 800 … 1100 hPa (absolute) |
| Sample gas flow | 30 … 90 l/h (0.5 … 1.5 l/min) |
| Sample gas temperature | 0 … 50 ºC |
| Sample cell temperature | Approx. 60 ºC |
| Sample gas humidity | < 90% relative humidity |
| Time response | |
| Warm-up period | < 30 min (maximum accuracy achieved after 2 hours) |
| Response time (T90) | < 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 |
| 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 (σ = 0.25%) |
| Zero drift | < 1%/week of smallest possible measuring span specified on rating plate |
| Measured-value drift | < 0.5% of smallest possible measuring span specified on rating plate |
| Repeatability | < 1% of respective measuring span |
| Minimum detectable quantity | 1% of current measuring range |
| Linearity error | < ± 1% 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 | < 1%/10 K referred to the smallest possible measuring span according to rating plate |
| Residual gases | Deviation in zero point (interfering gas influence see “Influence of interfering gases“) |
| Sample gas flow | < 0.1% of smallest possible measuring span according to rating plate with a change in flow of 0.1 l/h within the permissible flow range |
| Sample gas pressure | < 1% for a pressure variation of 100 hPa |
| 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 Ω |
| 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 |
| 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 … +45 ºC during operation |
| Permissible humidity (dew point must not be fallen below) | < 90% relative humidity as annual average, during storage and transport |
