Trace Model 200

Trace Model 200: H2S Detection

By stepping up to the Trace 200 Model line of analyzers you get either a Class I Division II or Class I Division I rating. Stainless steel conduits and explosion proof housing are used.

Standard Features

Corrosion Proofing

Using stainless steel instead of galvanized steel in the construction of the wiring conduits will reduce the risk of corrosion of the instrument; all of the conduits in the analyzer are replaced with their stainless steel counterparts.

Pressure Regulator

This device is used to reduce a high pressure, supply pressure, or inlet pressure in one stage to a lower pressure. The pressure reducing regulator is designed to meet the stringent requirements of a process analyzer sample conditioning system. The low internal volume reduces lag time thus more nearly approaching real-time analysis.

Sample Filter

This device is used to remove unwanted contamination in a system. Bypass filters allow a continuous sweeping action across the surface of the filter element. This sweeping action prolongs the life of the filter element and also insures the sample that passes through the element is representative of the current system condition.

Cal Tap

The calibration tap point includes the connection fittings and tubing together with a three-way ball valve to easily connect calibration gas to the analyzer.

4-20 mA Loop output

4-20 mA Loop output for remote monitoring


Diagnostic Alarm

Signals when there is a functional problem with the analyzer.

Concentration Alarm

Signals when the reading is above a user set value.

Data Communication

Modbus RTU on RS232 or RS485


SMARTalk connects to the Data Communication option to provide visibility and remote operation via personal computer or host with true bidirectional communication. The operator does not have to travel to the measurement site to alter operation, initiate calibration, or view data. Controls, reports, and data are available at lab or office via a personal computer link. Remote access reduces the chance of "no fault found" service calls where on site trips find no fault with the equipment. Learn more...

LCD Graph Display

The display is a paperless chart recording of the concentration with selectable time scale to make comparisons and graphically display operating trends over time.

Cabinet Heater

A heater with thermostat control is integrated into the cabinet which provides freeze protection throughout the cold winter months. This will prevent the humidifier solution from freezing in sub zero temperatures causing the unit to malfunction. This will drop the lowest allowable operating temperature 15°C to -10°C. This option is only available on 110VAC or 220VAC units.

Auto Calibration

The auto calibration provides software algorithm, contact outputs, solenoid valves, tubing, and customer connections for automatically calibrating analyzer at preselected time intervals.

Liquid Block Filter

Prevent liquids from entering the analyzer.

Electronic Flow Meter

Signals when the flow is +/- 30% of optimal.


TRACErase uses technology based on a catalytic combustion process to oxidize vented samples thus preventing fugitive emissions from entering the atmosphere without causing back pressure on the analyzer. Packaged to provide explosion proof protection, this unit may be used in hazardous locations.


This option allows the analyzer to select and analyze more than one sample source. This is ideal for any situation where more than one sample source is present.

Back-lighted Display

A new option available on the TRACE analyzer is a light behind the LCD to make operation even more user friendly.

Dilution Filter

On the 200 model line of analyzers it is possible to achieve a 0-100% detection range with a specially designed dilution filter.

Vaporizing Regulator

The vaporizing regulators vaporize a liquid into a gas then perform a single stage pressure reduction on the gas. Pressure drops through pressure regulators may cause cooling which allows liquid to form. The vaporizing regulator puts heat back into the flow media to insure that is stays a gas.



  • Alpha Numeric LCD
  • 128 x 64 pixel


  • -10°C to 50°C (operating)
  • 0°C to 70°C (storage)


  • Isolated 4-20mA


  • Resolution: 1 ppb
  • Accuracy: ±2%
  • Repeatability: ±1%
  • Linearity:±1%
  • Drift: Nil
  • Temp. Coefficient: 0.01% / °C
  • Analysis Time: 0.75 Second


  • 0-1 ppm
  • 0-50 ppm
  • 0-500 ppm


  • General Purpose
  • Division II
  • Division I


  • Approx. 200 lbs; 90 kg


  • 16" X 18" X 10"


  • 110VAC, 60 Hz
  • 220VAC, 50 Hz
  • 12VDC
  • 24VDC


(not available on 100 model)

  • Explosion Proof Housings