Benchmark TD-550 - Introduction; Components; Principle of Operation

Introduction TD-550/560 Oil in Water Analyzer
4 TD-550/560 Oil in Water Analyzer
Operation Manual
PN 106737
REV H
1 INTRODUCTION
This manual is specic for analyzers with serial numbers greater than 55000224 (TD-550) and
55000284 (TD-560). Do not use this version of the manual for analyzers with serial numbers outside of
this range.
The TD-550 and TD-560 oil in water analyzers are designed for quick, easy and reliable measurements
of crude oil, fuel oil, lube oil, diesel, some gas condensates, and rened hydrocarbons in water or soil.
When properly calibrated with a correlation method or a known standard, the TD-550/560 can be used
to measure the hydrocarbon concentrations of water samples in less than 4 minutes.
The TD-550 provides near ultraviolet (NUV) uorescence detection for those applications where a wide
concentration range is more important than high sensitivity. The TD-550 is ideal for the analysis of
produced water samples where crude oil concentrations can vary from low levels to over one thousand
parts-per-million.
The dual channel TD-560 offers the TD-550’s functionality in the NUV channel, as well as a deep
ultraviolet (DUV) channel, which provides the extreme sensitivity required to monitor very low
hydrocarbon concentrations and detect weakly uorescent hydrocarbons, such as some gas
condensates, diesel fuel, and rened petroleum products.
Both the TD-550 and TD-560 are normally used with a solvent-extraction method such as the Oil-in-
water Analysis Procedure described in Section 4 fastHEX™ Analysis Method and the Oil in Water
Analysis Quick Reference Guide. In this method, the target hydrocarbon is extracted into a suitable
solvent. The TD-550/560 measures the hydrocarbon content of the extract, and calculates the
hydrocarbon content in water.
NOTE: The TD-550 and TD-560 analyzers are not explosion-proof or intrinsically safe. They are not
designed in any way to be used in an explosion-proof designated area.
1.1 COMPONENTS
Front and back views of the analyzer, showing sample well, touch-screen tablet,
cables and power adapters.
1.2 PRINCIPLE OF OPERATION
The TD-550/560 Oil in Water Analyzer responds to the uorescent aromatic compounds in the target
hydrocarbon. The instrument must be calibrated by measuring the intensity of uorescent light that
is generated by a known concentration of hydrocarbon. Once calibrated, the instrument converts the
uorescent light intensity from an unknown sample into units of concentration.