1. Product Name Low Temperature and Humidity Chamber.
2. Model
A = Refrigeration Cooling is by Air.
W = Refrigeration Cooling is by Water.
3. Temperature Control System Balanced Temperature and Humidity Control System: BTHC.
4. Power 208/230V 3Ph 60Hz ±5%
200/220V 3Ph 50Hz ±5%
5. Ambient Temperature Allowable Range of Operation: 5 to 35°C (41 to 95°F).
Range of Assured Performance: 10 to 25°C (50 to 77°F).
6. Performance
6.1. Temperature Range -35 to 180°C (-31 to 356°F).
6.2. Temperature Constancy ± 0.3°C (± 0.5°C for Type 4) at -35 to 100°C.
± 0.5°C (± 0.7°C for Type 4) at 101 to 180°C.
6.3. Temperature Uniformity ± 0.7°C (± 1.0°C for Type 4) at -35 to 100°C.
±1.0°C (± 1.5°C for Type 4) at 101 to 180°C.
6.4. Humidity Range 10 to 98% RH.
6.5. Hu midity Constancy ± 2.5% RH (± 3.0% RH for Type 4).
6.6. Humidity Uniformity ± 3.0% RH (± 5.0% RH for Type 4).
6.7. Temperature Heat-Up Time
(208V Supply)
6.8. Temperature Pull-Down Time
6.8.1. 50Hz.
Model Size
ESL-2C 8 cu. Ft
ESL-3C 14 cu. Ft
ESL-4C 32 cu. Ft
Model Amps
ESL-2C 29 A
ESL-3C 29 A
ESL-4C 34 A
ESL-2C ESL-3C ESL-4C
23 to 150°C 22 min. 30 min. 25 min.
-20 to 85°C 20 min. 25 min. 20 min.
ESL-2C ESL-3C ESL-4C
23 to -30°C 50 min. 60 min. 84 min.
85 to -20°C 72 min. 96 min. 120 min.