General (based on DIN EN 61207/IEC 1207. All data refers to the binary gas mixture H2 in N2)
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Measuring ranges
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4, internally and externally switchable; automatic measuring range switchover also possible
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Span
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Application-dependent (see ordering data)
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Measuring ranges with suppressed zero point
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Application-dependent (see ordering data)
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Operating position
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Front wall, vertical
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Conformity
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CE marking in accordance with EN 50081-1/EN 50081-2 and RoHS
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Design, enclosure
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Degree of protection
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IP20 according to EN 60529
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Weight
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Approx. 13 kg
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Electrical characteristics
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EMC interference immunity (Electromagnetic Compatibility)
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In accordance with standard requirements of NAMUR NE21 (08/98) and EN 61326
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Electrical safety
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In accordance with EN 61010-1; overvoltage category II
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Auxiliary power (see nameplate)
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100 V AC -10 % ... 120 V AC +10 %, 48 ... 63 Hz
or
200 V AC -10 % ... 240 V AC +10 %, 48 ... 63 Hz
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Power consumption
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Approx. 30 VA
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Fuse values
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100 ... 120 V: 1.0 T/250
200 ... 240 V: 0.63 T/250
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Gas inlet conditions
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Sample gas pressure
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800 ... 1 100 hPa (absolute)
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Sample gas flow
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30 ... 90 l/h
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Sample gas temperature
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Min. 0 to max. 50 °C, but above the dew point
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Temperature of the measuring cell
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70 ?C
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Dynamic response (the dynamic and measuring response refers to the measurement of H2 in N2)
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Warm-up period
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< 30 min at room temperature (the technical specification will be met after 2 hours)
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Delayed display (T90)
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Approx. 35 s (including dead time)
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Damping (electrical time constant)
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0 ... 100 s, parameterizable
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Dead time (the diffusion to the probes is the determining variable)
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Approx. 34 s
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Dead time (special application)
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10 ... 15 s
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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)
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Output signal fluctuation (3? value)
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< ± 1 % of the smallest possible span according to rating plate, with electronic damping constant of 1 s
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Zero point drift
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< ± 1 % of the current span/week
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Measured-value drift
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< ± 1 % of the smallest possible span (according to rating plate)/week
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Repeatability
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< ± 1 % of the current span
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Detection limit
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1% of the smallest possible span according to rating plate
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Linearity error
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< ± 1 % of the current span
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Influencing variables (referred to sample gas pressure 1 000 hPa absolute, sample gas flow 0.5 l/min, and ambient temperature 25 °C)
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Ambient temperature
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< 2 %/10 K referred to smallest possible span according to label
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Accompanying gases
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Deviation from zero point (for influence of interfering gas, see section "Cross-interference")
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Sample gas flow
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0.2% of the current measuring span with a change in flow of 0.1 l/min within the permissible flow range
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Sample gas pressure
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< 1 % of the current span with a change in pressure of 100 hPa
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Auxiliary power
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< 0.1 % of the current span with rated voltage ± 10 %
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Electrical inputs and outputs
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Analog output
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0/2/4 ... 20 mA, isolated; max. load 750 ?
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Relay outputs
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6, with changeover contacts, freely parameterizable, e.g. for measuring range identification; load: 24 V AC/DC/1 A, isolated
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Analog inputs
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2, dimensioned for 0/2/4 ... 20 mA for external pressure sensor and correction of cross-interference
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Binary inputs
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6, designed for 24 V, isolated, freely parameterizable, e.g. for measuring range switchover
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Serial interface
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RS 485
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Options
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AUTOCAL function with 8 additional binary inputs and 8 additional relay outputs, also with PROFIBUS PA (on request) or PROFIBUS DP (on request)
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Climatic conditions
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Permissible ambient temperature
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-40 ... +70 °C during storage and transportation, 5 ... 45 °C during operation
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Permissible humidity (dew point must not be fallen below)
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< 90 % relative humidity as annual average, during storage and transportation
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