General (based on DIN EN 61207/IEC 1207. All data refers to the binary gas mixture H2 in N2) |
Measuring ranges | 4, internally and externally switchable; automatic measuring range switchover also possible |
Span | Application-dependent (see ordering data) |
Measuring ranges with suppressed zero point | Application-dependent (see ordering data) |
Operating position | Front wall, vertical |
Conformity | CE marking in accordance with EN 50081-1/EN 50081-2 and RoHS |
Design, enclosure | |
Degree of protection | IP20 according to EN 60529 |
Weight | Approx. 13 kg |
Electrical characteristics | |
EMC interference immunity (Electromagnetic Compatibility) | In accordance with standard requirements of NAMUR NE21 (08/98) and EN 61326 |
Electrical safety | In accordance with EN 61010-1; overvoltage category II |
Auxiliary power (see nameplate) | 100 V AC -10 % ... 120 V AC +10 %, 48 ... 63 Hz or 200 V AC -10 % ... 240 V AC +10 %, 48 ... 63 Hz |
Power consumption | Approx. 30 VA |
Fuse values | 100 ... 120 V: 1.0 T/250 200 ... 240 V: 0.63 T/250 |
Gas inlet conditions | |
Sample gas pressure | 800 ... 1 100 hPa (absolute) |
Sample gas flow | 30 ... 90 l/h |
Sample gas temperature | Min. 0 to max. 50 °C, but above the dew point |
Temperature of the measuring cell | 70 ?C |
Dynamic response (the dynamic and measuring response refers to the measurement of H2 in N2) |
Warm-up period | < 30 min at room temperature (the technical specification will be met after 2 hours) |
Delayed display (T90) | Approx. 35 s (including dead time) |
Damping (electrical time constant) | 0 ... 100 s, parameterizable |
Dead time (the diffusion to the probes is the determining variable) | Approx. 34 s |
Dead time (special application) | 10 ... 15 s |
Measuring response(the dynamic and measuring response refers to the measurement of H2 in N2) (referred to sample gas pressure 1 000 hPa absolute, sample gas flow 0.5 l/min, and ambient temperature 25 °C) |
Output signal fluctuation (3? value) | < ± 1 % of the smallest possible span according to rating plate, with electronic damping constant of 1 s |
Zero point drift | < ± 1 % of the current span/week |
Measured-value drift | < ± 1 % of the smallest possible span (according to rating plate)/week |
Repeatability | < ± 1 % of the current span |
Detection limit | 1% of the smallest possible span according to rating plate |
Linearity error | < ± 1 % of the current span |
Influencing variables (referred to sample gas pressure 1 000 hPa absolute, sample gas flow 0.5 l/min, and ambient temperature 25 °C) |
Ambient temperature | < 2 %/10 K referred to smallest possible span according to label |
Accompanying gases | Deviation from zero point (for influence of interfering gas, see section "Cross-interference") |
Sample gas flow | 0.2% of the current measuring span with a change in flow of 0.1 l/min within the permissible flow range |
Sample gas pressure | < 1 % of the current span with a change in pressure of 100 hPa |
Auxiliary power | < 0.1 % of the current span 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, isolated |
Analog inputs | 2, dimensioned for 0/2/4 ... 20 mA for external pressure sensor and 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 8 additional relay outputs, also with PROFIBUS PA (on request) or PROFIBUS DP (on request) |
Climatic conditions | |
Permissible ambient temperature | -40 ... +70 °C during storage and transportation, 5 ... 45 °C during operation |
Permissible humidity (dew point must not be fallen below) | < 90 % relative humidity as annual average, during storage and transportation |