The HMA-820 Chiller for APA Jr. is an optional accessory to help cool the main chamber of the HM-457 Asphalt Pavement Analyzer Junior. Using the Chiller together with the standard heating elements of the analyzer, chamber temperature is accurately controlled from -9° to 80°C (15° to 176°F). The Chiller also adapts the APA Jr. to perform a variety of other tests, including high-contact pressure testing for airport runways and taxiways, microsurfacing/slurry seal testing, low-temperature fatigue and studded wheel tests. HMA-820 operates at 208V/50-60Hz.
- Cools main chamber to -9°C (15°F)
- Allows HM-457 to perform other tests
- Maintains accurate control of chamber temperature