C79451-Z1589-U1

General information

Operating position

Front wall, vertical

Conformity

CE mark in accordance with ENВ 50081-1 and ENВ 50082-2

Design, enclosure

Weight

Approx. 21 kg

Degree of protection

IP20 according to ENВ 60529

Electrical characteristics

EMC (electromagnetic compatibility)

In accordance with standard requirements of NAMUR NE21 (08/98)

Electrical safety

According to EN 61010-1, overvoltage categoryВ III

Auxiliary power

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

Power consumption

Approx. 70 VA

Fuse values

120В ...В 120 V: F1/F2 = TВ 1.6В A
200В ...В 240В V: F1/F2 = TВ 1В A

Electrical inputs and outputs (per channel)

Analog output

0/2/4В ...В 20 mA, floating; max. load 750В О©

Relay outputs

6, with changeover contacts, freely configurable, e.g. for measuring range identification; load: 24 V AC/DC/1 A, floating, non-sparking

Analog inputs

2, dimensioned for 0/2/4 … 20 mA for external pressure sensor and correction of influence of accompanying gas (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 each with 8 additional digital inputs and relay outputs; also with PROFIBUSВ PA or PROFIBUSВ DP

Climatic conditions

Permissible ambient temperature

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

Permissible humidity

< 90% relative humidity, during storage and transportation (dew point must not be undershot)

Measuring ranges

4, internally and externally switchable; autoranging is also possible

Smallest possible measuring range

Dependent on the application, e.g.
CO: 0В ... 10 vpm
CO₂: 0В ... 5 vpm

Largest possible measuring range

Dependent on the application

Measuring ranges with suppressedВ zero point

Any zero point within 0В ... 100 vol.% can be implemented; smallest possible span 20%

Characteristic

Linearized

Influence of interfering gases must be considered separately

Gas inlet conditions

Permissible sample gas pressure

• Without pressure switch

700 ... 1В 500 hPa (absolute)

• With integrated pressure switch

700 ... 1В 300 hPa (absolute)

Sample gas flow

18 ... 90 l/h (0.3 ... 1.5 l/min)

Sample gas temperature

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

Sample gas humidity

< 90% (relative humidity), or dependent on measuring task, non-condensing

Dynamic response

Warm-up period

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

Delayed display (T₉₀-time)

Dependent on length of analyzer chamber, sample gas line and configurable damping

Damping (electrical time constant)

0В ... 100 s, configurable

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

Approx.В 0.5В ... 5В s, depending on version

Time for device-internal signal processing

<В 1В s

Pressure correction range

Pressure sensor

• Internal

700В ... 1В 200В hPa absolute

• External

700В ... 1В 500В hPa absolute

Measuring response

Based on sample gas pressure 1В 013В hPa absolute, 0.5 l/min sample gas flow and 25В В°C ambient temperature

Output signal fluctuation

< В±В 1% of the smallest possible measuring range according to rating plate

Zero point drift

<В± 1% of the current measuring range/week

Measured-value drift

<В± 1% of the current measuring range/week

Repeatability

≤ 1% of the current measuring range

Detection limit

1% of the smallest possible measuring range

Linearity error

< 0.5% of the full-scale value

Influencing variables

Based on sample gas pressure 1В 013В hPa absolute, 0.5 l/min sample gas flow and 25В В°C ambient temperature

Ambient temperature

< 1% of current measuring range/10 K (with constant receiver cell temperature)

Sample gas pressure

• With disabled pressure compensation: <В 0.15% of the span/1% change in atmospheric pressure
• With disabled pressure compensation: <В 1.5% of the span/1% change in atmospheric pressure

Sample gas flow

Negligible

Auxiliary power

<В 0.1% of the current measuring range with rated voltageВ В±В 10%

Environmental conditions

Application-specific measuring influences possible if ambient air contains measured component or cross interference-sensitive gases

Measuring ranges

4, internally and externally switchable; automatic measuring range switchover also possible

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

0.5В vol.%, 2В vol.% or 5 vol.%В O₂

Largest possible measuring range

100 vol.% O₂

Measuring ranges with suppressed zero point

Any zero point within 0В ... 100 vol.% can be implemented, provided that a suitable reference gas is used

Gas inlet conditions

Permissible sample gas pressure

• With pipes

500В ... 3В 000В hPa absolute

• With hoses

• Without pressure switch

500В ... 1В 500В hPa absolute

• With pressure switch

500В ... 1В 300В hPa absolute

Sample gas flow

18В ... 60В l/h (0.3В ... 1В l/min)

Sample gas temperature

0В ... 50 ВєC

Sample gas humidity

<В 90% RH (relative humidity)

Reference gas pressure (high-pressure version)

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

Reference gas pressure (low-pressure version)

Min. 100В 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.В 1.5В ... 3.5В s, depending on version

Damping (electrical time constant)

0В ...В 100В s, configurable

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

Approx.В 0.5В ... 2.5В s, depending on version

Time for device-internal signal processing

<В 1В s

Pressure correction range

Pressure sensor

• Internal

500В ... 2В 000В hPa absolute

• External

500В ... 3В 000В hPa absolute

Measuring response

Based on sample gas pressure 1В 013В hPa absolute, 0.5 l/min sample gas flow and 25В В°C ambient temperature

Output signal fluctuation

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

Zero point drift

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

Measured-value drift

≤ 0.5%/month of the current measuring range

Repeatability

≤ 1%/month 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 1В 013В hPa absolute, 0.5 l/min sample gas flow and 25В В°C ambient temperature

Ambient temperature

• <В 0.5%/10 K referred to smallest possible span according to rating plate
• With measuring span 0.5%: 1%/10В K

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

• With disabled pressure compensation: <В 2% of the current measuring range /1% change in atmospheric pressure
• With disabled pressure compensation: <В 0.2% of the current measuring range /1% change in atmospheric pressure

Accompanying gases

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

Sample gas flow

<В 1% of the smallest possible span according to rating plate with a change in flow of 0.1В l/min within the permissible flow range

Auxiliary power

<В 0.1% of the current measuring range with rated voltageВ В±В 10%