J.U.M. Engineering GmbH

- Model 3-300A - High Temperature Total Hydrocarbon Analyzer



The 3-300A heated FID was designed in the early 80's as a space saving alternative to our VE7. Also the 3-300A was a 'first' in the industry due to its sample filter back purge feature. It is also a very much liked 19' rack mount heated FID throughout the stack testing community and well known for its ruggedness, forgivingness and long standing accuracy and sensitivity. The 3-300A is fully identical to the VE7 and 3-200 and has been officially approved for that. TÜV approved and certified for 2. BImSchV. 13. BImSchV and 17. BImSchV and fully complies with QAL1, EN 12619, EN 13526 (EU) and with EPA Method 25A and Method 503 (USA).

  • Maintenance free sample filter back purge system allows filter to be cleaned without dismantling (automatic optional)
  • Built in burner air generator, no external air cylinder needed
  • All components in contact with sample fully heated and controlled at 190 degree C
  • Built-in sample pressure and sample pumps
  • Automatic flame out alarm and contact
  • Fast response within 1 second
  • Low fuel consumption
  • Very selective
  • Microprocessor controlled PID-type temperature controller
  • Remote control for sample, calibrate and back purge is standard
  • Remote or automatic range change optional

  • Stack gas hydrocarbon emissions monitoring
  • Fence line monitoring
  • Raw exhaust vehicle emissions analysis
  • Catalytic converter testing
  • Measuring engine combustion efficiency
  • Hydrocarbon contamination monitoring in air and other gases
  • Carbon adsorption regeneration control
  • Detection of trace hydrocarbons in purity gases used in the semi conductor industry
  • LEL monitor of solvent laden air

The J.U.M. Engineering HFID Model 3-300A is a very compact 19' rack mount heated total hydrocarbon analyzer for high accuracy, sensitivity and stability.

The Model 3-300A uses a hydrogen flame ionization detector (FID) in a heated oven to prevent the loss of high molecular weight hydrocarbons and to provide reliable performance in the analysis of trace level of contaminants in high purity gases, air and other gases.

All sample wetted components are integrated into the heated chamber. The permanent heated sample filter is cleaned by back purging with compressed air or nitrogen. This allows uninterrupted measurements during cleaning the sample filter. While back purging the sample filter, the sample line is also cleaned. The use of a stack probe filter is not necessary.

The combustion air supply for the detector is built in. No expensive zero gas generator or external cylinder for synthetic air is needed.

Our special rear adapter plate system eliminates HC condensation on the sample inlet. It allows the cold-spot free coupling of a heated sample line inside the heated oven without the need of special tools.

The Flame Ionization Detection (FID) method is used to determine the presence of total hydrocarbon concentrations in a gaseous sample. Burning hydrocarbon-free hydrogen in hydrocarbon-free air produces a negligible number of ions.

Once a sample containing hydrocarbons is introduced into this flame a very complex ionization process is started. This process creates a large number ions. A high polarizing voltage is applied between the two electrodes around the burner nozzle and produces an electrostatic field. Now negative ions migrate to the collector electrode and positive ions migrate to the high voltage electrode. The so generated ionization current between the two electrodes is directly proportional to the hydrocarbon concentration in the sample that is burned by the flame. This signal is measured and amplified by our electrometer-unit.

A sample pressure regulator provides a controlled back pressure at the sample capillary which gives admittance of a constant sample flow rate to the burner. This technique without the conventional back pressure regulator is used by J.U.M. Engineering for over 33 years to provide the highest possible sample flow rate stability and lowest maintenance. Our compactly designed flow control module for controlling the fuel and air flow rates via needle valves use high precision pressure regulators. The needle valves are factory adjusted and sealed to ensure the optimization of the burner.

  • Method of analysis: Flame Ionization Detector
  • Sensitivity: Max 1 ppm CH4 full scale
  • Response time: 02 seconds
  • Tsotime: 12 seconds
  • T90 time with heated line (75m) and filter: less than 8 seconds
  • Zero drift: <10% full scale/24h
  • Span drift: <10% full scale/24h
  • Linearity: Up to 0-10000ppm within 1% FSD
  • Oxygen synergism: <12%FSD
  • Measuring ranges (ppm): 0-10,100, 1000, 10000, 100000, others on request
  • Analog outputs: 0-10 VDC and 4-20 mA
  • Display: 3 1/2 digit
  • Sample pump: approx 25 l/min capacity @ operating temp
  • Zero and span adjust: Manual on front panel
  • Fuel consumption 100% H2: approx 20 ml/min @ 15 bar (22 psig)
  • Fuel consumption 40%H2/60%He: approx 90 ml/min @ 15 bar (22 psiq)
  • Burner air consumption: built in burner air supply
  • Oven temperature: 190°C(374°F)
  • Temperature control: H-processor PID controller
  • Power requirements: either 230VAC/50HZ, 850 W or 115VAC/60HZ, 850 W
  • Ambient temperature: 5-43°C(41-110°F)
  • Dimensions (W x D x H): 19' (483 mm) x 460 mm x 132 mm
  • Weight: approx 20 kg (44 lbs)

J.U.M. reserves the right, at any time and without notice, to change specifications presented in this data sheet and assumes no responsibility for the application or use of the devices described herein.

Some Options Cannot be Combined:

  • AMU 33: Automatic range change
  • AP0 33: EXTERNAL automatic programmable backpurge system for the sample filter
  • AZM33: Automatic flame ignition and re-ignition
  • DCC33: Dual concentration alarm w. individual adjustable threshold and alarm outputs
  • ENGA 33: 6-digit display, 0-100.000 ppm
  • FOAS33: Flame out control with automatic fuel shut off valve
  • ICM 33 *: Built-in NMHC Cutter, measure either THC or Methane-Only with one analyzer
  • LT0 33: Measurement of low trace hydrocarbon levels. Requires external, zero grade combustion air supply!
  • MBP33**: Integrated bypass pump
  • PDA 33: Sample pressure monitor with alarm
  • RCA 33: 0-20 mA analog output instead of 4-20 mA
  • RCC33: Remote control range change
  • RCIO 33: 0-20 mA analog output, galvanically isolated
  • RCI4 33: 4-20 mA analog output, galvanically isolated
  • TPR33: EXTERNAL temperature controller for heated sample line, e.g. JUM TJ100

* ICM cannot be combined with LTO
** MBP cannot be combined with ICM

Availability of options may change unaccounted!

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