General information

Measuring ranges

3, automatic measuring range switching

Detection limit (2?)

< 1% of span

Smallest possible span

Dependent on order configuration
NO: 0 ... 10 / 0 … 20 / 0 … 25 / 0 … 50 vpm
NO₂: 0 … 10¹⁾ / 0 ... 20 / 0 … 25 / 0 … 50 vpm
SO₂: 0 … 10¹⁾ / 0 ... 20 / 0 … 25 / 0 … 50 vpm
H₂S: 0 … 25 / 0 … 50 vpm

Largest possible span

Dependent on order configuration
NO, NO₂, SO₂: 0 … 300 to 0 ... 1 000 vpm
H₂S: 0 … 500 to 0 ... 1 000 vpm

UV lamp

• Design

EDL, electrodeless discharge lamp

• Service life

? 2 years (17 500 h)

Conformity

CE mark

Design, enclosure

Degree of protection

IP40

Weight

approx. 17 kg

Requirements of location of use

Installation location

Within closed building

Atmospheric pressure in the environment

700 …1 200 hPa

Relative humidity

10 ... 95 %, non-condensing

Permissible contamination

Pollution degree 1

Maximum geographic altitude of location of use

2 500 m above sea level

Permissible ambient temperature

• Operation

+5 ... +45 °C (41 ... 113 °F)

• Transport and storage

-10 ... +70 °C (14 ... 158 °F)

Operating position

Front wall, vertical
, max. ± 15° angle for each spatial axis
(maximum permissible inclination of the base surface during operation wtih constant operating position)

Permissible vibrations/
shocks

• Vibration displacement

0.035 mm (in the range 5 ... 59 Hz)

• Amplitude of the starting acceleration

5 m/s² (in the range 59 … 160 Hz)

Electrical characteristics

Line voltage (optional, see nameplate)

93 ... 132 V AC, 186 ... 264 V AC

Line frequency (AC)

47 ... 63 Hz

Permissible overvoltages (transient surges in the power supply network)

Up to overvoltage category II in accordance with IEC 60364-4-443

Power consumption

Approx. 50 VA, max. 300 VA

EMC interference immunity (electromagnetic compatibility)

In accordance with EN 61326-1, EN 61326-2-1, EN 61000-6-2, EN 61000-6-4 and EU Directive 2004/108/EC. In the case of electromagnetic radiation in the frequency range from 750 MHz ± 20 MHz, increased measuring errors can occur for small measuring ranges

Electrical safety

In accordance with EN 61010-1

Internal line fuses

• primary

6.3 A, not replaceable

• secondary

8 A

Gas inlet conditions

Permissible sample gas pressure

Relative to ambient/atmospheric air pressure:

-200 ... +300 hPa (-0.2 … +0.3 bar)

Sample gas flow

20 ... 120 l/h (333 ... 2 000 ml/min)

Sample gas temperature

5 ... 55 °C

Measuring response

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

Reference point drift

< ±1%/week of respective span

Zero point drift

• Standard measuring ranges

< ± 1%/week of respective span

• Small measuring ranges (? 2x smallest measuring range)

< ± 2%/week of respective span

• Measured components NO, NO₂, SO₂

< ±1%/day of respective span

Repeatability (reproducibility)

< ± 1% of respective span

Linearity error

< ± 1% of respective span

Electric inputs and outputs

Analog output

4, 0 ... 24 mA ; floating (electrically isolated), residual ripple 0.02 mA, resolution 0.1 % (20 ?A), max. load 500 ?, max. voltage ± 50 V

Relay outputs

8, with changeover contacts, max. voltage ± 50 V loading capacity: Max. 30 V AC / max. 48 V DC / max. 500 mA

Analog inputs

2, 0 ... 20 mA, reference potential GND, max. signal strength 30 mA, max. overcurrent protection ±1 A, max. voltage ± 50 V

Digital inputs

8, switching range 14 ... 42 V (external control voltage), max. voltage ± 50 V

Serial interface

RS485, Ethernet (LAN)