Siemens
СРЕДСТВА ПРОМЫШЛЕННОЙ АВТОМАТИЗАЦИИ
официальный партнер Сименс
Каталог СА01 2012
архивный
(4872) 700-366
skenergo@mail.ru

C79451-A3480-D512


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Заказной номерВесPGОписание продуктаЦена
C79451-A3480-D5120.09822ADDITIONAL ELECTRONICS FOR THE AUTOMOTIVE INDUSTRIE (AK)1480.82

19" rack unit

OXYMAT 6, 19" rack unit

General information

Measuring ranges

4, internally and externally switchable; autoranging is also possible

Smallest possible span (relating to sample gas pressure 1 000 hPa absolute, 0.5 l/min sample gas flow and 25 °C ambient temperature)

0.5 vol.%, 2 vol.% or 5 vol.% O2

Largest possible measuring span

100 vol.% O2(for a pressure above 2 000 hPa: 25 vol.% O2)

Measuring ranges with suppressed zero point

Any zero point can be implemented within 0 … 100 vol.%, provided that a suitable reference gas is used (see Table 1 in "Function")

Operating position

Front wall, vertical

Conformity

CE mark in accordance with EN 50081-1, EN 50082-2

Design, enclosure

Degree of protection

IP20 according to EN 60529

Weight

Approx. 13 kg

Electrical characteristics

Power supply

100 … 120 V AC (nominal range of use 90 … 132 V), 48 … 63 Hz or 200 … 240 V AC (nominal range of use 180 … 264 V), 48 … 63 Hz

Power consumption

Approx. 35 VA

EMC (ElectromagneticCompatibility)

In accordance with standard requirements of NAMUR NE21 (08/98), EN 61326, EN 50270 (with gas warning unit)

Electrical safety

According to EN 61010-1, overvoltage category III

Fuse values

100 ... 120 V: 1.0 T/250

200 ... 240 V: 0.63 T/250

Gas inlet conditions

Permissible sample gas pressure

  • With pipes

500 … 3 000 hPa absolute

  • With hoses

  • Without pressure switch

500 … 1 500 hPa absolute

  • With pressure switch

500 … 1 300 hPa absolute

Sample gas flow

18 … 60 l/h (0.3 … 1 l/min)

Sample gas temperature

Min. 0 ... max. 50 °C, but above the dew point

Sample gas humidity

< 90% RH (RH: relative humidity)

Reference gas pressure (high-pressure version)

2 000 ... 4 000 hPa above sample gas pressure, but max. 5 000 hPa

Reference gas pressure (low-pressure version)

Min. 100 hPa above sample gas pressure

Dynamic response

Warm-up period

At room temperature < 30 min (the technical specification will be met after 2 hours)

Delayed display (T90-time)

Min. 1.5 … 3.5 s, depending on version

Damping (electrical time constant)

0 … 100 s, parameterizable

Dead time (purging time of the gas path in the unit at 1 l/min)

Approximately 0.5 ... 2.5 s, depending on version

Time for device-internal signal processing

< 1 s

Pressure correction range

Pressure sensor

  • Internal

500 … 2 000 hPa absolute

  • External

500 … 3 000 hPa absolute

Measuring response(relating to sample gas pressure 1 013 hPa absolute, 0.5 l/min sample gas flow and 25 °C ambient temperature)

Output signal fluctuation

< ± 0.75% of the smallest possible measuring range according to rating plate, with electronic damping constant of 1 s (corresponds to ±0.25% at 2 )

Zero point drift

< ± 0.5%/month of the smallest possible span according to rating plate

Measured-value drift

< ±0.5%/month of the current measuring range

Repeatability

< 1% of the current measuring range

Detection limit

1% of the current measuring range

Linearity error

< 0.1% of the current measuring range

Influencing variables(relating to sample gas pressure 1 013 hPa absolute, 0.5 l/min sample gas flow and 25 °C ambient temperature)

Ambient temperature

< 0.5%/10 K relating to the smallest possible measuring range according to rating plate, with measuring span 0.5%: 1%/10 K

Sample gas pressure (with air (100 hPa) as reference gas, correction of the atmospheric pressure fluctuations is only possible if the sample gas can vent to ambient air)

  • When pressure compensation is switched off: < 2% of the current measuring range/1% pressure change
  • When pressure compensation is switched on: < 0.2% of the current measuring range/1% pressure change

Carrier gases

Deviation from zero point corresponding to paramagnetic or diamagnetic deviation of carrier gas

Sample gas flow at zero point

< 1% of the current measuring range according to rating plate with a change in flow of 0.1 l/min within the permissible flow range

Power supply

< 0.1% of the current measuring range 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 residual gas influence correction (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 relay outputs each, also with PROFIBUS PA or PROFIBUS DP

Climatic conditions

Permissible ambient temperature

-30 … +70 °C during storage and transportation, 5 … 45 °C during operation

Permissible humidity

< 90% RH (RH: relative humidity) within average annual value, during storage and transportation (dew point must not be undershot)
























































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