C79451-A3480-D511

General information

Measuring ranges

4, internally and externally switchable; manual and autoranging possible

Smallest possible measuring span

0В ... 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 (5В digits with floating point)

Resolution of digital display

0.1% of measured value

Operating position

Front wall, vertical

Conformity

CE mark EN 50081‑1, EN 50082‑2

Oven temperature

Adjustable, 100В ... 200 В°C

Design, enclosure

Degree of protection

IP20 according to ENВ 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. 350В 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 ENВ 61010-1, overvoltage category II

Fuse values

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

Gas inlet conditions

Permissible sample gas pressure

• Without pump

<В 2В 000В hPa abs.

• With integrated pump

600В ... 1В 100В hPa

Sample gas temperature

0В ... 200 В°C

Sample gas humidity

<В 90% RH (RH: relative humidity)

Dynamic response

Warm-up period

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

Delayed display (T₉₀)

2В ... 3В s

Damping (electrical time constant)

0В ... 100В s, configurable

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

With filter, 2В ... 3В s

Time for device-internal signal processing

<В 1В s

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 2В Пѓ)

Zero point drift

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

Measured-value drift

<В 1%/week of the current measuring range

Repeatability

<В 1% of the current measuring range

Detection limit

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

Linearity error

<В 1% of the current measuring range

Influencing variables

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

Ambient temperature

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

Atmospheric pressure

< 1%/50В hPa

Sample gas pressure

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

Auxiliary power

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

Position influence

<В 1% with <В 15В° inclination

Electrical inputs and outputs

Analog output

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

Relay outputs

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

Analog inputs

2, dimensioned for 0/2/4 to 20В 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

RSВ 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

5В ... 45В В°C in operation,

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

Permissible humidity

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

Combustion gas

3В 000 ... 5В 000

2В 000 В±В 20

~ 25

—

Combustion air

3В 000 ... 5В 000

1В 420 В±В 20

1В 500

~ 320

~ 500

Sample gas

~В 1000

—

1В 500 В±В 2

~ 3

~ 1В 000

Zero gas

3В 500 ... 4В 000

—

1В 500 В±В 2

~ 3

~ 1В 000

Calibration gas

3В 500 ... 4В 000

—

1В 500 В±В 2

~ 3

~ 1В 000

Combustion gas

3В 000 ... 5В 000

2В 000 В±В 20

~ 25

—

Combustion air

3В 000 ... 5В 000

1В 480 В±В 5

—

~ 320

~ 300

Sample gas

1В 500В ... 2В 000

—

1В 500 В±В 2

~ 3

~ 500

Zero gas

1В 500В ... 2В 000

—

1В 500 В±В 2

~ 3

~ 500

Calibration gas

1В 500В ... 2В 000

—

1В 500 В±В 2

~ 3

~ 500