General information

Measuring ranges

4, internally and externally switchable; manual and autoranging possible

Smallest possible measuring span

0 ... 10 vpm

Largest possible measuring span

99.999 vpm*⁾

Concentration units

vpm, C₁, C₃, C₆ or mgC/m³

Autoranging

Hysteresis, selectable

Measured-value display

Digital concentration display (5 digits with floating point)

Resolution of digital display

0.1% of measured value

Operating position

Front wall, vertical

Conformity

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

Oven temperature

Adjustable, 100 ... 200 °C

Design, enclosure

Degree of protection

IP20 according to EN 60529

Weight

Approx. 23 kg

Electrical characteristics

Auxiliary power

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. 150 VA during operation,
• approx. 350 VA during warm-up phase

EMC interference immunity (electromagnetic compatibility)

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

Electrical safety

In accordance with EN 61010-1, overvoltage category II

Fuse values

• 100 ... 120 V: 4.0T/250
• 200 ... 240 V: 2.5 T/250

Gas inlet conditions

Permissible sample gas pressure

• Without pump

< 2 000 hPa abs.

• With integrated pump

600 ... 1 100 hPa

Sample gas flow

18 ... 60 l/h (0.3 ... 1 l/min)

Sample gas temperature

0 ... 200 °C

Sample gas humidity

< 90% RH (RH: relative humidity)

Dynamic response

Warm-up period

At room temperature, approx. 2 ... 3 h

Delayed display (T₉₀)

2 ... 3 s

Damping (electrical time constant)

0 ... 100 s, parameterizable

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

With filter, 2 ... 3 s

Time for device-internal signal processing

< 1 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

< 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 measuring span according to rating plate

Measured-value drift

< 1%/week of the current measuring range

Repeatability

< 1% of the current measuring range

Detection limit

0.1 vpm (version for ultra-pure gas measurement: 50 ppb)

Linearity error

< 1% of the current measuring range

Influencing variables

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

Ambient temperature

< 1%/10 K referred to smallest possible span according to rating plate

Atmospheric pressure

< 1%/50 hPa

Sample gas pressure

< 2% of the current measuring range range/1% pressure change (within 600 ... 1 100 hPa)

Auxiliary power

< 1% of the current measuring range with rated voltage ± 10%

Position influence

< 1% with < 15° inclination

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, potential-free

Analog inputs

2, dimensioned for 0/2/4 to 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 parameterizable, e.g. for measuring range switchover

Serial interface

RS 485

Options

AUTOCAL function each with 8 additional digital inputs and relay outputs, also with PROFIBUS PA or PROFIBUS DP

Climatic conditions

Permissible ambient temperature

5 ... 45 °C in operation,

-30 ... +70 °C during storage and transportation

Permissible humidity

< 90% RH (RH: relative humidity) as annual average, during storage and transportation (must not fall below dew point)

Combustion gas

3 000 ... 5 000

2 000 ± 20

~ 25

—

Combustion air

3 000 ... 5 000

1 420 ± 20

1 500

~ 320

~ 500

Sample gas

~ 1000

—

1 500 ± 2

~ 3

~ 1 000

Zero gas

3 500 ... 4 000

—

1 500 ± 2

~ 3

~ 1 000

Calibration gas

3 500 ... 4 000

—

1 500 ± 2

~ 3

~ 1 000

Combustion gas

3 000 ... 5 000

2 000 ± 20

~ 25

—

Combustion air

3 000 ... 5 000

1 480 ± 5

—

~ 320

~ 300

Sample gas

1 500 ... 2 000

—

1 500 ± 2

~ 3

~ 500

Zero gas

1 500 ... 2 000

—

1 500 ± 2

~ 3

~ 500

Calibration gas

1 500 ... 2 000

—

1 500 ± 2

~ 3

~ 500