BM3201 4 Gas Cylinder

BM3201 4 Gas Cylinder

The BM3201 4 Gas Cylinder is both an anti-pollution control tool and a diagnostic tool.

Product Description

The BM3201 4-gas analyzer is for emission testing of vehicles.

The analyzer features a range of options that allows for a customized configuration.


  • Accurate and consistent measurements.
  • Robust and long lasting.
  • Low maintenance costs.
  • Graphic screen and 5-key keyboard.
  • Guided test procedure on LCD display and handheld unit.
  • Thermal integrated printer (or Matrix Dot on demand).
  • Intelligent control of gas pump via handheld unit to ensure long pump lifetime.
  • Compatible with the OIML R99 Class 0 and ISO 3930 standards.
  • Multi-gas analysis mode.
  • Vehicle inspection mode.
  • Automatic condensation extraction.
  • Prepared for integration with BM FlexCheck software.
    • Allows for fully automated one or multilane test facilities.
  • Can be supplied with mobile trolley for easy movement:
    • Standard trolley or “tough” trolley.

Technical Data

Size of display unit (LxWxH)

400 x 380 x 200 mm

Preheating time

< 5 min at 20°C (1 minute minimum)

Response time

13 seconds for HC, CO, CO2
28 seconds for oxygen

Nominal pump delivery

6 l/min.

Minimum pump delivery

3.5 l/min.

Hose length for gas sampling probe

7.5 m

Air pressure variation

Automatic correction by integrated absolute pressure sensor

Zero point and sensitivity

Automatic compensation

Pump standby and zeroing


Power supply x 1

0.9 A / 230 Vac (+10-15%)
1.5 A / 115 Vac


Normal resolution: 0 to 20000 ppm Propane
10 ppm accuracy
Normal res.: 10 ppm vol.
High res.: 1 ppm vol.


-0.03 à 10.5%
0.03% accuracy
Normal res.: 0.01% vol.
High res. 0.001% vol.


-0.4 à 21.0 %
0.5% accuracy
Normal res.: 0.1% vol.


-0.5 à 21.7 %
0.1% accuracy
If O₂<4% vol. high res.: 0.01% vol.
Otherwise normal res.: 0.1% vol.


0 à 5000 ppm
Res.: 1 ppm vol.

Engine speed

0 à 9999 RPM
+/- 10 RPM accuracy
Res.: 1 tours/min.

Oil temperature

-5 à 150°C
+/- 1°C accuracy
Res.: 1°C

Corrected CO

0 à 10%
0.03% accuracy
Res.: 0.01%

Air/fuel coefficient (Lambda)

0.600 to 1.200
0.03 accuracy
Res.: 0.001 or 0.01 (selectable)

Size standard trolley (LxWxH)

500 x 500 x 1000 mm

Size “tough" trolley (LxWxH)

550 x 550 x 1300 mm


  • Latest technology and software meeting authority requirements.
  • Handheld units allow the operator to operate from inside the vehicle.


  • Private workshops.
  • Vehicle inspection bodies.

Make an Enquiry Today

Interested in our brake testers, or other products? Get in touch and find out more.

Make an Enquiry Today

Interested in our brake testers, or other products? Get in touch and find out more.