Sensonic IR-1 Gas Analyzers

Specifications

Dimensions ( W x H x D ) 

500 mm x 395 mm x 173 mm 

Weight 

14 kg ÷ 18 kg 

Casing's material 

Plywood covered with aluminium 

Operating conditions 

T: 10°C ÷ 50°C, RH: 5% ÷ 90% ( non-condensing ) 

Storing temperature 

-20°C ÷ +55°C

Power supply : input | maximal power consumption 

115 or 230VAC | 150W 

Operating system 

Windows CE 5.0 

Display 

6.4” VGA ( 640 x 480 ) 

Data storage: type | capacity 

Compact Flash card | max. 4GB 

Interface for external devices ( USB disk, mouse, keyboard ) 

2x USB 

Communication interface with PC computer 

RS-232C, RJ45 ( Ethernet ) 

Warming up time 

90min max 

Warming up temperature 

about 18°C above ambient temperature 

Maximum outside temp. drift that does not affect warming up temp.

 ±5°C

Measurements of gas components

Method

Range | Resolution

Accuray

Time (T₉₀)

O₂ – Oxygen

Electrochemical sensor 

20.95% | 0.01%

± 0.1% abs. or 5% rel

45 sec

Electrochemical, partial pressure 

20.95% | 0.01%

± 0.1% abs. or 5% rel

45 sec

Electrochemical, partial pressure 

25% | 0.01%

± 0.1% abs. or 5% rel

45 sec

Electrochemical, partial pressure 

100% | 0.1%

± 0.1% abs. or 5% rel

45 sec

Paramagnetic sensor 

25% | 0.01%

± 0.1% abs. or 5% rel

45 sec

Paramagnetic sensor 

100% | 0.1%

± 0.1% abs. or 5% rel

45 sec

CO – Carbon monoxide

Electrochemical sensor 

20 000ppm | 1ppm

± 5ppm abs. or 5% rel

45 sec

Electrochemical, with H2 compensation 

2 000ppm | 1ppm

± 5ppm abs. or 5% rel

45 sec

Electrochemical sensor 

10% | 10ppm

± 50ppm abs. or 5% rel

45 sec

NDIR 

20 000ppm | 1ppm

± 3ppm abs. or 3% rel

45 sec

NDIR 

10% | 0.01%

± 0.3% abs. or 3% rel

45 sec

NDIR 

100% | 0.1%

± 0.3% abs. or 3% rel

45 sec

CO₂ – Carbon dioxide

NDIR

5% | 0.01%

± 0.3% abs. or 3% rel

45 sec

NDIR

10% | 0.01%

± 0.3% abs. or 3% rel

45 sec

NDIR

25% | 0.01%

± 0.3% abs. or 3% rel

45 sec

NDIR

50% | 0.01%

± 0.3% abs. or 3% rel

45 sec

NDIR

100% | 0.1%

± 0.3% abs. or 3% rel

45 sec

C_xH_y – Total Hydrocarbons

NDIR

5% | 0.1%

± 0.3% abs. or 3% rel

45 sec

NDIR

10% | 0.1%

± 0.3% abs. or 3% rel

45 sec

NDIR

25% | 0.1%

± 0.3% abs. or 3% rel

45 sec

NDIR

50% | 0.1%

± 0.3% abs. or 3% rel

45 sec

NDIR

100% | 0.1%

± 0.3% abs. or 3% rel

45 sec

NO – Nitric oxide

NDIR

5 000ppm | 1ppm

± 3ppm abs. or 3% rel

45 sec

Electrochemical sensor

5 000ppm | 1ppm

± 5ppm abs. or 5% rel

45 sec

NO₂ – Nitrogen dioxide

NDIR

1 000ppm | 1ppm

± 3ppm abs. or 3% rel

45 sec

Electrochemical sensor 

5 000ppm | 1ppm

± 5ppm abs. or 5% rel

45 sec

SO₂ – Sulphur dioxide

NDIR

5 000ppm | 1ppm

± 3ppm abs. or 3% rel

45 sec

Electrochemical sensor 

5 000ppm | 1ppm

± 5ppm abs. or 5% rel

45 sec

H₂S – Hydrogen sulfide

Electrochemical sensor 

1 000ppm | 1ppm

± 5ppm abs. or 5% rel

45 sec

H₂ – Hydrogen

Electrochemical sensor 

2 000ppm | 1ppm

± 10ppm abs. or 5% rel

45 sec 

Electrochemical sensor 

20 000ppm | 1ppm

± 10ppm abs. or 5% rel

45 sec 

NH₃ – Ammonia⁽¹⁾

Electrochemical sensor 

1 000ppm | 1ppm

± 10ppm abs. or 5% rel

45 sec 

N₂O – Nitrous oxide

NDIR

2 000ppm | 1ppm

± 3ppm abs. or 3% rel

45 sec

CHF₃ – Fluoroform (Refrigerant R23)

NDIR

2.5% | 0.01%

± 0.3% abs. or 3% rel

45 sec

Notes : (1) – not available with dryer equipped only with Nafion® exchanger as NH₃ is destructive for nafion

Other measurements / calculated results

Method

Range | Resolution

Accuracy

Time (T₉₀)

T_gas – gas temperature

K-type thermocouple

-10 ÷ 1000°C | 0.1°C

± 2°C 

10 sec

S-type thermocouple

-10 ÷ 1500°C | 0.1°C

± 2°C 

10 sec

T_amb – boiler intake air temperature

PT500 resistive sensor

-10 ÷ 100°C | 0.1°C

± 2°C 

10 sec

Differential pressure

Silicon piezoresistive pressure sensor

-25hPa ÷ +25hPa | 1Pa (0.01hPa)

± 2Pa abs. or 5% rel

10 sec

Gas flow velocity

Indirect, with Pitot tube & pressure sensor

1 ÷ 50m/s | 0.1m/s

0.3m/s abs. or 5% rel

10 sec

Lambda λ – excess air number

Calculated

1 ÷ 10 | 0.01

± 5% rel

10 sec

qA – stack loss

Calculated

0 ÷ 100% | 0.1%

% ± 5% rel

10 sec

Eta η – combustion efficiency

Calculated

0 ÷ 120% | 0.1%

± 5% rel

10 sec

IL – incomplete combustion

Calculated

0 ÷ 100% | 0.01%

± 5% rel

10 sec