Field device

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  Чертеж

  

  CALOMAT 6, field unit, dimensions in mm

  Схема подключения

  Pin assignment (electrical and gas connections)

  

  CALOMAT 6, field unit, connector and terminal assignment

  

  CALOMAT 6, field unit, connector and terminal assignment of the AUTOCAL board and PROFIBUS connectors

  

  CALOMAT 6, field unit, gas and electrical connections

  Технические данные

  General information	Based on DIN EN 61207/IEC 1207. All data based on digital gas mixture H2 in N2
  Measuring ranges	4, internally and externally switchable; automatic measuring range changeover also possible
  Largest possible measuring span	100 vol.% H2 (for smallest measuring span, see "Function")
  Measuring ranges with suppressed zero point	Any zero point within 0 ... 100 vol.% can be implemented; smallest possible measuring span: 5 % H2
  Operating position	Front wall, vertical
  Conformity	CE mark in accordance with EN 61326/A1 and EN 61010/1
  Design, enclosure
  Degree of protection	IP65 according to EN 60529
  Weight	Approx. 25 kg
  Electrical characteristics
  EMC interference immunity (electromagnetic compatibility) All signal lines must be shielded. Measured value deviations of up to 4 % of the smallest measuring range may occur in ranges with strong electromagnetic interference.	In accordance with standard requirements of NAMUR NE21 (08/98)
  Electrical safety	In accordance with EN 61010-1; overvoltage category II
  Auxiliary power (see nameplate)	100 V -10 % ... 120 V +10 % AC, 48 ... 63 Hz or 200 V -10 % ... 240 V +10 % AC, 48 ... 63 Hz
  Power consumption (unit)	Approx. 20 VA
  Fuse values	100 to 120 V: 1.0T/250 200 ... 240 V: 0.63 T/250
  Gas inlet conditions
  Sample gas pressure	800 to 1 100 hPa (absolute)
  Sample gas flow	30 to 90 l/h (0.5 to 1.5 l/min)
  Sample gas temperature	Min. 0 to max. 50 °C, but above the dew point
  Temperature of the measuring cell	Approx. 60 ºC
  Sample gas humidity	< 90% relative humidity
  Purging gas pressure
  Permanent	165 hPa above ambient pressure
  For short periods	Max. 250 hPa above ambient pressure
  Time response	Based on sample gas pressure 1 000 hPa absolute, 0.5 l/min sample gas flow and 25 °C ambient temperature
  Warm-up period	< 30 min (the technical specification will be met after 2 hours)
  Delayed display (T90)	< 5 s
  Electrical damping	0 ... 100 s, configurable
  Dead time (at 1 l/min)	Approx. 0.5 s
  Measuring response	Based on sample gas pressure 1 013 hPa absolute, 0.5 l/min sample gas flow and 25 °C ambient temperature
  Output signal fluctuation (maximum accuracy achieved after 2 hours)	< ± 0.75 % of the smallest possible measuring range according to rating plate, with electronic damping constant of 1 s (σ = 0.25%)
  Zero point drift	< ± 1 %/week of the smallest possible measuring span according to rating plate
  Measured-value drift	< ± 1 %/week of the smallest possible measuring span according to rating plate
  Repeatability	< 1 % of the current measuring range
  Detection limit	1% of the current measuring range
  Linearity error	< ± 1 % of the current measuring range
  Influencing variables	Based on sample gas pressure 1013 hPa absolute, 0.5 l/min sample gas flow and 25 °C ambient temperature
  Ambient temperature	< 1 %/10 K referred to smallest possible measuring span according to rating plate
  Accompanying gases	Deviation from zero point (for influence of interfering gas, see section "Cross-interference")
  Sample gas flow	< 0.2 % of the smallest possible span according to rating plate with a change in flow of 0.1 l/min within the permissible flow range
  Sample gas pressure	< 1 % of the current measuring range with a pressure change of 100 hPa
  Electrical inputs and outputs
  Analog output	0/2/4 ... 20 mA, floating; load max. 750 Ω
  Relay outputs	6, with changeover contacts, freely configurable, e.g. for measuring range identification; load: 24 V AC/DC/1 A, floating
  Analog inputs	2, dimensioned for 0/2/4 ... 20 mA for external pressure sensor and correction of cross-interference
  Digital inputs	6, designed for 24 V, floating, freely configurable, e.g. for measuring range switchover
  Serial interface	RS 485
  Options	AUTOCAL function with 8 additional digital inputs and relay outputs, also with PROFIBUS PA or PROFIBUS DP
  Climatic conditions
  Permissible ambient temperature	-30 ... +70 °C during storage and transportation, 5 ... 45 °C in operation
  Permissible humidity (dew point must not be fallen below)	< 90% relative humidity as annual average, during storage and transportation