PREPARED BY 2/12/2007 KCW Model Drawing No. Spc. No. ECSP07009 1/2
C 4/9/10 TJE
D 6/4/10 DPA
E 11/12/10 JIL
F 4/18/11 TJE
REVISION
G 6/28/12 NKD
BENCHTOP SERIES
LOW TEMPERATURE
CHAMBER
SPECIFICATION
1. Performance
1.1. Temperature Range -70 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
-18°C -40°C
BTZ-133 500 W 1/3 h.p. x2 3.5 °C/min 3 °C/min 240 watts 160 watts
BTZ-175 1000 W ¾ h.p. x2 5 °C/min 5 °C/min 500 watts 300 watts
BTZ-475 1000 W ¾ h.p. x2 2.75 °C/min 2.5 °C/min 400 watts 300 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
BTZ-133 136 kg 300 lbs.
BTZ-175
737 x 847 x 864 mm 29” x 33.35” x 34”
181 kg 400 lbs
BTZ-475 737 x 847 x 1159 mm 29” x 33.35” x 45.6” 250 kg 550 lbs.
2.2. Interior
Model Dimensions (W x D x H) Volume
BTZ-133
BTZ-175
498 x 280 x 305 mm 19.6” x 11” x 12” 42 liter 1.5 cu. ft.
BTZ-475 498 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
208/230 V 1 ph 60 Hz
3 wire grounding
BTZ-133
16 NA
BTZ-175
NA 12
BTZ-475
NA 12
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