1.Break off both ends of a detector tube (No.100B for No.601 syringe or No.2HT for No.611 syringe) by using the tube tip cutter.
2.Attach the syringe inlet to the syringe (No.601 or No.611) and collect 20ml of sample into the syringe by pulling its piston.
3.Insert the tube securely into the syringe inlet with the arrow pointing away from the syringe. Inject the sample collected in the syringe into the detector tube in 2 minutes (for No.100B) or 20 seconds (for No.2HT), and read the indication.| Chemical to measure | Measurement Range (ppm) | Tube No. |
| Carbon dioxide | 10-100% | 2HT |
| Propane | 0.1-2% | 100B |
