Atec Espec-BT Series - Manual (Page 7)

7
Model BTL-433 BTX-475 BTZ-475 BTU-433
Temperature Range
-20 to 180°C
(-4 to 354°F)
-70 to 180°C
(-100 to 354°F)
-20 to 180°C
(-4 to 354°F)
Change Rate
(per IEC 60068 3-5)
1.5°C/m heat-up
1.2°C/m cool-down
2.75°C/m heat-up
2.5°C/m cool-down
1.5°C/m heat-up
1.2°C/m cool-down
Temperature Fluctuation ± 0.5°C, per IEC 60068 3-5
Temperature Gradient ± 1.5°C (up to 100°C), per IEC 60068 3-6
Live Load Capacity 190 W to 0°C 300 W to -40°C 190 W to 0°C
Humidity Range 10 to 95% RH, per chart below -
Humidity Fluctuation
±5% RH per IEC 60068 3-5
except measured in supply air
-
Interior Volume 4 cu. ft (110 L)
Interior (W x D x H) 19.6" x 15" x 23.6" (500 x 380 x 600 mm)
Exterior (W x D x H) 30" x 33.5" x 47" (760 x 850 x 1150 mm)
Heaters 500 W 1000 W 500 W
Refrigeration 1/3-hp x1 (single-stage) 3/4-hp x2 (cascade) 1/3-hp x1 (single-stage)
Air Circulation 200 cu. ft./min. (5.6 m 3 /min.)
Site Requirements
Power 115V 1ph 60Hz, 16A max. 208/230V 1ph 60Hz 12A max. 115V 1ph 60Hz, 13A max.
Weight 325 lbs. (147 kg) 550 lbs. (250 kg) 325 lbs. (147 kg)
Sound Level 65 dBA (1 meter away from door)
Heat to Room 3,600 BTU/Hr 9,000 BTU/Hr 3,600 BTU/Hr
Gravity Drain 3/8" NPT
Humidity Water Supply
Supply: 3/8" NPT, 30-50 psig
Typical usage: 0.5 gallons/day
Purity required: 0.2 μS/cm to 10 μS/cm
-
Room Temperature Performance assured when room temp. is steady, 18 to 27°C (65 to 80°F)
80
60
40
20
20° 40°
Temp. in °C
60° 80°
%RH
5° / 15%
95
85°
Controlled humidity range for BTL-433 & BTX-475 models
(without live load). Optional low humidity range shown in red.
SPECIFICATIONS - 4
cu
.
ft
. MOdElS
BTL / BTU-433: 1.5°C/m
BTX / BTZ-475: 2.5°C/m
-100
-50
50
100
150
0
-70
-20
180
60 120 0 180 240 300 350
Chart shows example of heating and cooling ramps during
IEC 60068 3-5 qualification (see page 3).