Tenney Engineering TJR-17 Ramping Temperature Controller

Tenney Engineering TJR-17 Ramping Temperature Controller is a Tenney Junior compact benchtop environmental chamber equipped with a Watlow 942 ramping controller for programmable temperature profiles. The chamber offers a standard interior workspace of 16 in W x 11 in D x 11.75 in H inside an exterior footprint of 37 in W x 22 in D x 31.75 in H, with an approximate unit weight of 260 lb. Standard temperature range is -68°C to 180°C, with optional -75°C to 200°C; ambient-to-target ramps such as to 200°C can take about 60 minutes and to -15°C about 10 minutes, depending on configuration. The unit supports up to three shelves (max load 30 lb including shelves and contents; per-shelf 10 lb), includes a 3-inch standard port on the left sidewall, uses a 120V, 1-phase, 60 Hz power supply, and uses air-cooled refrigeration with two 1/2 HP compressors; noise is under 72 dBA at measurement points.