Analytical performance

Measuring range

Internally adjustable

Detection limit at standardized conditions:
25 °C gas temperature, 1 000 hPa, 1 m effective optical path length, 3 s integration time and constant ambient conditions.

O₂: 200 ppmv

Linearity (under standard conditions)

Better than 1%

Repeatability (under standard conditions)

O₂: 1% of the measuring range

General information

Design

Transmitter and detector units, connected by a sensor cable

Materials

• Sensor enclosure: Treated aluminum/stainless steel (1.4305/303)
• Process interface: Acid-resistant stainless steel (1.4404/316L)
• Window: hardened borosilicate glass
• Compressible gaskets: FKM, FF, EPDM (holder for reference cell)
• Flat gaskets: Graphite

Parts wetted by the process gases

• Purging tubes, flanges, window ring, process purging: acid-resistant stainless steel
• Window: Borosilicate
• Gasket in window: FFKM
• Flat gasket between customer flange and process flange: Graphite

Installation

In-situ or bypass

Concentration units

ppm, vol. %, mg/Nm³

Display

Digital concentration display (4 digits with floating decimal point)

Laser protection class

Class 1, safe to the eye

Explosion protection

Optionally, according to

• ATEX II 2G Ex de op is IIC T6
  ATEX II 2D Ex tD A21 IP65 T85 °C
• FM Class I, II, III Div 1 Groups A, B, C, D, E, F, G T6
  FM Class I, Zn 1, AEx d IIC T6
  FM Class II, Zn 21, AEx td T85 °C
• XP Class I, II, III Div 1 Groups C, D T6 Ta = 55 °C;
  DIP Class II,III Div 1 Groups E, F, G T6 Ta = 55 °C; Class I, Zn 1, Ex d IIC T6 Ta = 55 °C; Zn 21, Ex tD T85 °C Ta = 55 °C

Design, enclosure

Degree of protection

IP65 according to EN 60529

Dimensions

For each unit (transmitter, detector)

• Diameter: 165 mm
• Length: 357 mm

Purging tube

Length, outer diameter, inner diameter:
340, 48, 44 mm

Weights

• Detector unit

6.0 kg

• Transmitter unit

5.2 kg

• Process interface

• for DN50/PN25

5.3 kg

• for ANSI4''/150 lbs

Approx. 12 kg

Connection dimension customer flange

DN 50/PN 25, DN 50/PN 40 or ANSI 4"/150 lbs

Electrical characteristics

Auxiliary power

24 V DC nominal (18 ... 30.2 V DC)

Power consumption, maximum

10 VA

EMC

In accordance with EN 61326-1

Electrical safety

In accordance with EN 61010-1

Fuse specifications

T1.6L250V

Dynamic performance

Warm-up time at 20 °C ambient temperature

Approx. 15 min

Response time (T90)

Approx. 2 s, depends on application

Integration time

0 ... 100 s, selectable

Influencing variables

Variations in ambient temperature

< 0.5%/10 K of the measuring range

Process gas temperature

With compensation: < 1%/100 K of the measuring range

Variations in atmospheric pressure

Negligible

Process gas pressure

O₂: With compensation: < 1%/4 000 hPa of the measuring range

Variations in supply voltage

Negligible

Electrical inputs and outputs

Number of measurement channels

1

Analog outputs

2 outputs, 4 ... 20 mA, floating, ohmic resistance max. 660 ?. External isolating power supplies may have to be provided by the customer.

Analog inputs

2 inputs, designed for 4 ... 20 mA, 120 ?

Digital outputs

2 outputs, with switchover contacts, configurable, 24 V/0.5 A, floating, single pole double throw (SPDT)

Digital input

1 input, designed for 24 V, floating, configurable

Service port

Ethernet 10BaseT (RJ-45)

RS 485 PROFIBUS DPV0 version

Two-wire interface, up to 3 Mbps, -7 … 12 V

RS 485 Modbus version

Two-wire interface, up to 115 200 bit/s, -7 … 12 V

Connection cable to customer interface

Not included in standard delivery, permanently installed for ATEX or optional for standard

Analog connection cable
(only supplied cables may be used for ATEX configuration!)

10 x 2, with shielding in twisted-pair configuration (depending on type and number of I/Os used)

PROFIBUS DP connection cable
(with ATEX configuration: only supplied cables may be used!)

1 x 2 + 4 (PROFIBUS DP hybrid cable)

Modbus connection cable
(with ATEX configuration: only supplied cables may be used!)

1 x 2 + 3, with shielding in twisted-pair configuration

Cable length for ATEX configuration

3 m

Conductor cross-section

Min. 0.34 mm?

Cable diameter

8 ... 12 mm or 13 ... 18 mm

Minimum bending radius ATEX-PROFIBUS

110 mm

Sensor cable

Not included in standard delivery, permanently installed for ATEX or optional for standard

Sensor cable type configuration

4 x 2, with shielding, in twisted-pair configuration

Conductor cross-section

Min. 0.34 mm?

Cable sheath

PUR (polyurethane)

Dimensions

• Diameter: 11 mm
• Length: up to 25 m

Minimum bending radius

ATEX: 85 mm

Climatic conditions

Ambient temperature range

• -20 ... +55 °C during operation (additional solar radiation not permissible!)
• -40 ... +70 °C during transport and storage

Temperature range on the sensor side of the process interface (connection plate)

-20 ... +70 °C

Atmospheric pressure

800 ... 1100 hPa
(for ATEX and FM version)

Humidity

< 100% rel. humidity

Measuring conditions

Measurement path

0.3 ... 8 m (other lengths: please contact Siemens)

Process gas pressure, temperature

• O₂: 900 ... 1 100 hPa, 0 … 600 °C
• O₂: 700 … 5 000 hPa, 0 … 200 °C

Dust load

The influence of a high dust load is complex, and depends on the optical path length and particle size distribution.

Purging

Purging gas

Nitrogen (for O₂ applications)

• Quality

O₂ application: Purity better than 99.7% in order to achieve full performance. For oxygen measurements, an O₂ content < 0.01 vol. % in the purging gas is recommended.

• Dew point

< -10 °C, condensation on the optics must be avoided

Sensor purging

• Max. overpressure in the sensor

500 hPa

• Purging gas temperature on sensor side

0 ... +55 °C

• Flow

O₂ application: When commissioning a sensor enclosure previously filled with air: 3 ... 5 l/min (for at least 15 min), subsequently: at least 0.25 l/min

Purging on the process side (optional)

• Pressure at purging gas inlet

2 000 ... 8 000 hPa

• Flow

Dependent on process gas pressure, process gas velocity, dust load, moisture, etc. up to max. 50 l/min