PREPARED BY 02/28/2011 TJE Model Drawing No. Spc. No. ECSP11000 1/1
A 7/10/12 NKD
B
C
D
REVISION
E
BENCHTOP SERIES
TEMPERATURE
CHAMBER
SPECIFICATION
1. Performance
1.1. Temperature Range -20 to 180°C
1.2. Temperature Fluctuation
1
± 0.5°C
1.3. Temperature Gradient
2
± 1.5°C below 100°C
1.4. Temperature Rate of Change
1
Live LoadModel Dry
Heaters
Compressor Heating
Average Rate
3
Cooling
Average Rate
20°C 0°C
BTU-133 500 W 1/3 h.p. 2 °C/min 1.6 °C/min 285 watts 200 watts
BTU-433 500 W 1/3 h.p. 1.5 °C/min 1.2 °C/min 275 watts 190 watts
1
per IEC 60068 3-5 except measured in supply air
2
per IEC 60068 3-6
3
At voltage specified in section 3.2
1.5. Air Circulation 1.5 cu.ft. chamber - 100 cu. ft./min.
4.0 cu.ft. chamber - 200 cu. ft./min.
2. Dimensions
2.1. Exterior
Model Dimensions (W x D x H) Weight
BTU-133 737 x 847 x 864 mm 29” x 33.35” x 34” 125 kg 275 lbs.
BTU-433 737 x 847 x 1159 mm 29” x 33.35” x 45.6” 147 kg 325 lbs.
2.2. Interior
Model Dimensions (W x D x H) Volume
BTU-133 498 x 280 x 305 mm 19.6” x 11” x 12” 42 liter 1.5 cu. ft.
BTU-433 498 x 381 x 600 mm 19.6” x 15” x 23.6” 113 liter 4.0 cu. ft.
3. Site requirements
3.1. Ambient Temperature Allowable range of operation: 5 to 35°C (41 to 95°F)
Range of assured performance: 18 to 27°C (65 to 80°F)
3.2. Power (Full Load Current)
Model
115 V 1 ph 60 Hz
3 wire grounding
BTU-133
13
BTU-433
13
3.3. Refrigeration Cooling
3.3.1 Air Cooled (Integral)
Model Heat Rejection to Ambient Noise Level**
BTU-133 3300 BTU/Hr 65 dBA
BTU-433 3300 BTU/Hr 65 dBA
** Noise level measured 1 meter from front and at mid-point of door
3.4. Gravity Drain 1/2” Hose barb
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