Thermo Scientific 51i Total Hydrocarbon (THC) Analyzer

← Thermo Scientific
Thermo Scientific 51i

Measured parameters: THC / VOC (Hydrocarbons)

Measurement method: Flame Ionization (FID)

Thermo Scientific 51i flame ionization (FID) total hydrocarbon analyzer; heated (HT) version. Discontinued; service and spare parts in Türkiye from Tetra.

Discontinued The manufacturer no longer sells this model; Tetra continues to provide service, calibration and spare parts for installed units.

Installation, calibration, spare parts and service in Türkiye come from Tetra; cabinet and panel integration can be done at our İzmir facility.

Technical information

Measured parameter
Total hydrocarbons (THC, ppmC)
Measurement principle
Flame ionization detector (FID)
Preset ranges
0-1 to 10,000 ppmC
Minimum detection
0.050 ppm (10 s average)
Response time (90%)
15 seconds (1 s average)
Sample flow rate
0.75-1.50 L/min

51i is an analyzer that measures total hydrocarbon (THC) concentration with a flame ionization detector (FID). Hydrocarbons ionize in a hydrogen flame; because the resulting ion current is proportional to the carbon number, the result is given in ppmC.

It is used in emission monitoring, process gas analysis and ambient air VOC measurements. The high-temperature (HT) version works with a heated sample line for heavy hydrocarbons that tend to condense.

51i features

  • Total hydrocarbon measurement by FID
  • Heated (high temperature) version
  • Internal zero/span assembly option
  • Operation with hydrogen fuel
  • Bench or rack mounting

Spare parts and consumables

Write to us for spare parts and consumables; the Tetra service team supplies and replaces the right original parts for your instrument.

Ask about spare parts →
CONTACT

Let's choose the right product together

Tell us about your application; we will recommend the right model and configuration for the measuring point, process conditions and regulations.