Teledyne 4020


TAI Model 4020 uses a field proven FID detector to measure THC in various streams. This instrument is ideal for monitoring hydrocarbon contamination in high purity bulk gases. When coupled with Teledyne’s unique separation column, the 4020 is also diverse enough to be applied in hazardous locations for the detection of volatile hydrocarbons in cooling water for process leak detection and environmental compliance.


• Monitoring the purity of oxygen, argon, nitrogen and other blanketing gases in the manufacture of microcircuits • Monitoring hydrocarbon contamination in air liquefaction and other gas production processes • Gas purity certification • Detecting trace hydrocarbons in ambient air • Detecting atmospheric pollutants • Monitoring for fuel leakage or toxic solvents • Monitoring hydrocarbons in CO2 feed streams in the food/beverage industry



Dimensions                                   17.65″ wide x 8.81″ high x 13.25″ deep


Panel Cutout                                17.5″ wide x 8.95″ high




First, there was the  – under construction –


– under construction –


– under construction –


– under construction –


This is a short list of activities that we perform on your analyzer:

1. First, we do AS-FOUND testing:

is anything broken inside?

does it power up?

does the case heater work?

are the displays working?

does it light?

does it respond to calibration gases?

does it seem to be contaminated?

do the regulators and gauges work correctly?

do the analog outputs work?

2. We test all of the restrictors and test them for performance against the OEM’s specifications.

3. We replace out-of-specification restrictors

4. We do a clean up of the interior

5. We repair anything that is broken (with your authorization)

6. We reassemble, light, test, calibrate, and run for 24 hours on a data acquisition trend

7. We attach calibration stickers and optimized pressure settings stickers

8. We write up a service report

9. Then it’s boxed up and shipped according to your specifications

If you get the analyzer back and find that something is not quite right, PLEASE CALL US. It could be as simple as a loose coax cable or ribbon cable … certainly something out of our control after it leaves our facility.

We sincerely appreciate your business and trust in our company.


Keywords: Teledyne 4000 Series THC analyzer 4020 troubleshooting total hydrocarbons

The RIGAS 951 Calculator

– under construction –