TESTO has released the 325M combustion analyser. It is designed for routine combustion testing, O2, CO2, CO, draft and efficiency checks.
The handheld instrument has a backlit display, two-range differential pressure/draft testing, CO readings to 4000 ppm, IR printing and the ability to store and print separate ambient CO readings. The condensate trap and filter assembly eliminate sample moisture and contaminants to protect the pump and sensors and give a long operating life. Both the analyser and the printer operate on AA alkaline batteries.
Accessories include Testo's magnetic-backed, protective SoftCase and a variety of temperature probes for differential temperature measurements. Testo has also released the 325 XL. It is suitable for use by heating technicians and engineers. It delivers all the features of the 325M, plus memory storage for 20 tests and two additional fuel choices.
The instrument’s inbuilt draft feature eliminates the need for additional manometers and tubing. Its differential temperature feature makes flow-return measurements and condensing furnace adjustments quick and easy. Samples are automatically taken in the flue or stack and analysed by the instruments. Fuel-air ratios and other adjustments are performed, values are displayed real-time so service technicians can visually see the results.