AVL DiGas 4000 User Manual (English)

Questions and Answers:

A
Andrew ThompsonAug 14, 2025
What to do if AVL Test Equipment leak test failed?
- S
  Sherry LynnAug 14, 2025
  If the AVL Test Equipment leak test fails, you should: * Check the entire sampling line for leaks, from the probe tip to the inlet on the rear panel. * Disconnect the probe hose and connect a leak-proof 2 m hose. * Inspect the O-rings in the filter housing and condensate trap, and check the connections for leaks on the probe hose and condensate drainage hose. * Also, check if the tester was stored with condensate at temperatures below 0° C.
K
Karen SchmidtAug 18, 2025
What to do if AVL Test Equipment measuring chamber temperature is too high?
- M
  Mckenzie RamosAug 18, 2025
  If the measuring chamber temperature is too high on your AVL Test Equipment, you should remove the probe from the exhaust pipe. Wait at least 10 minutes, then acknowledge the error by pressing >>. If the issue persists, there may be a fault in the measuring instruments unit; remove the unit and check the cable to the receiver, replacing the unit if necessary.
J
Jessica HuffmanAug 21, 2025
What to do if my AVL Test Equipment measuring chamber is too hot or too cold?
- F
  Felicia WilsonAug 21, 2025
  If your AVL Test Equipment's measuring chamber is too hot or too cold, first remove the probe from the exhaust pipe and wait for the temperature to return to the permitted range. Then, acknowledge the message by pressing >>. If the temperature is still too low, one of the heating blocks has probably failed. If the temperature is still too high, the feedback control system is malfunctioning.
C
Casey RodriguezAug 25, 2025
What to do if AVL Test Equipment measuring chamber pressure is wrong?
- J
  Jasmine MayerAug 25, 2025
  If the measuring chamber pressure is wrong on your AVL Test Equipment, first check whether the measurement gas outlet is blocked. If the error persists, remove the unit and check whether the hose system is blocked. Additionally, check or replace the pressure sensor.
P
Pamela HarveyAug 27, 2025
How to fix insufficient gas flow in AVL Test Equipment?
- R
  Richard BakerAug 27, 2025
  To fix insufficient gas flow in your AVL Test Equipment: * Clean the probe out with compressed air. * If the filter is black, replace it. * Remove the measuring instruments unit and check the hose system and pump.
S
Sydney HoldenAug 31, 2025
What to do with Opacity Measuring Chamber, Type A, of AVL Test Equipment?
- S
  saunderstammieAug 31, 2025
  For the Opacity Measuring Chamber, Type A, of your AVL Test Equipment: * Fold the optical elements to the side. * Check that both lamps are working. * Clean the glass disc in front of the optical elements. * Fold the optical elements back into place and acknowledge the message by pressing >>.
T
Tammy ThompsonSep 3, 2025
What to do with Opacity Measuring Chamber, Type 4000, of AVL Test Equipment?
- M
  Meghan CopelandSep 4, 2025
  For the Opacity Measuring Chamber, Type 4000, of your AVL Test Equipment, remove the lens protector and check the windows. Then, press
E
Eric JonesSep 7, 2025
What causes Changeover Valve Error in AVL Test Equipment?
- V
  Vanessa NelsonSep 7, 2025
  A Changeover Valve Error in AVL Test Equipment is caused by failure of the changeover valve in the opacity measuring chamber. The suggested solution is to replace the changeover valve.
J
Jonathan AnthonySep 10, 2025
What to do if AVL Test Equipment calibration fails?
- D
  Diane GaySep 10, 2025
  If the calibration fails on your AVL Test Equipment, press >> to call up the diesel service screen for further error diagnosis.

AVL DiGas 4000 Specifications

General

Gases measured	CO, CO₂, HC, O₂
Measurement principle	NDIR for CO, CO₂, HC; electrochemical cell for O₂
Power supply	100-240V AC, 50/60Hz or 12V DC
Measured components	CO, CO₂, HC, O₂
Measurement ranges CO	0-10% vol
Measurement ranges CO₂	0 - 20 %
Measurement ranges HC	0 - 20, 000 ppm
Measurement ranges O₂	0-25% vol
Display	LCD
Outputs	RS-232
Applications	combustion analysis
Accuracy CO₂	±0.5% vol or ±5% of reading
Accuracy O₂	±0.1% vol or ±5% of reading