Specification Sheet

Bench Ovens
from Quincy Lab, Inc.
Quincy Lab Inc. 1925 N. Leamington Ave. Chicago IL. Phone [phone]-HEAT Fax [phone]
GENERAL
SPECIFICATIONS
MODEL
21-250
MODEL
21-350
MODEL
31-350
MODEL
51-550
INTERIOR DIMENSIONS
INCHES W x H x D
(CM) W x H x D
EXTERIOR DIMENSIONS
INCHES W x H x D
(CM) W x H x D
TEMPERATURE RANGE
FAHRENHEIT
CENTIGRADE
CAPACITY
CUBIC FEET
(LITERS)
ELECTRICAL
VOLTS/AMPS
WATTS
PLUG/NEMA
SHELVES (1-1/2" CENTERS)
MAXIMUM PER UNIT
MAXIMUM POUNDS / SHELF
WEIGHT
SHIPPING
STAND ALONE
PERFORMANCE
CHARACTERISTICS*
MODEL
21-250/ER
MODEL
21-350/ER
MODEL
31-350/ER
MODEL
51-550/ER
CONTROL STABILITY
@ 100C
@ 200C
UNIFORMITY
@ 100C
@ 200C
TIME TO TEMPERATURE
AMBIENT TO 100C
AMBIENT TO MAX
RECOVERY @ 150C
DOOR OPEN 15 SEC.
DOOR OPEN 30 SEC.
EVAPORATION RATE
@ 110 C +/-5 (230 F +/-9 )
AIR CHANGES MAX / HOUR
@150C WITH NO LOAD
MAX CHAMBER AIR VELOCITY
* PERFORMANCE CHARACTERISTICS FOR STANDARD VOLTAGE MODELS, ALTERNATE VOLTAGE MODELS MAY VARY. ALL TESTS CONDUCTED UNDER CONTROLLED LABORATORY CONDITIONS.
** REPEATABILITY OR SET POINT DRIFT MEASURED FOR 24 HRS. WITH CONTROLLED LAB AMBIENT TEMPERATURES NOT VARYING MORE THAN 2 DEGREES C & SUPPLY VOLTAGE BY NOT MORE THAN 2%.
REPEATABILITY @ 150C
(SET POINT DRIFT)**
25.5x19.75x24 25.5x19.75x24 25.5x19.75x22.525.5x30x24
33x24x35.5 33x24x35.5 33x34x35.5 33x24x35.5
77
6.6010.6
185
165
185
165
225
200
195
170
115/9.2
1050
5-15P*
120/16
1920
5-20P*
120/16
1920
5-20P*
230/12.5
3000
6-20P
11
80
11
80
17
80
11
80
MODEL 21-350ER shown with optional window and chamber light & 10" "swing-out" circular chart recorder
* 230 Volt optional on models 21 & 31
64.7x50x61 64.7x50x61 64.7x50x5764.7x76x61
83x61x90 83x61x90 83x86x90 83x60x90
198 198 300 186
300
150
450
232
450
232
550
287
+/- 2.0 0.2 C
NA
+/- 2.0 0.3 C
+/- 2.5 0.5 C
+/- 2.5 0.5 C
+/- 3.0 0.5 C
+/- 3.0 0.5 C
+/- 3.5 0.5 C
NA
+/- 2.5 2.0 C
+/- 2.5 2.0 C
+/- 3.5 4.0 C
+/- 3.0 2.0 C
+/- 4.0 3.0 C
+/- 3.5 2.5 C
+/- 5.5 4.5 C
15 Min. / 16 Min.
36 Min. / 38 Min.
8 Min. / 9 Min.
30 Min. / 32 Min.
9 Min. / 10 Min.
35 Min. / 38 Min.
3 Min. / 6 Min.
40 Min. / 45 Min.
4 Min. / 5 Min.
5 Min. / 6 Min.
2 Min. / 3 Min.
3 Min. / 4 Min.
3 Min. / 4 Min.
4 Min. / 5 Min.
1 Min. / 2 Min.
2 Min. / 3 Min.
+/- 2.0 / 0.5 C
+/- 1.0 / 0.5 C +/- 1.5 / 0.5 C +/- 2.0 / 0.75 C
8 to 12 8 to 12 8 to 12 8 to 12
7 ft/sec. 7 ft/sec. 7 ft/sec. 7 ft/sec.
30-35 g/h 30-35 g/h 30-35 g/h 30-35 g/h
TOP VIEW AIR FLOW
(SECTION)
REAR VIEW AIR FLOW
MOTOR/FAN
INTAKE AIR
EXHAUST AIR
CLEARANCE
REQUIREMENTS
6"
6" minimum from wall to
back of blower housing.
o
o
o
o
o
o
o
o
per ASTM C88
AMBIENT +25 F MIN. TO:
o