Despatch LBB1-23 User Manual
INSPIRED INNOVATION
u LBB Forced Convection Oven
Excellent uniformity at a moderate price
e Despatch LBB oven features a combination of horizontal and vertical
air ow that o ers excellent temperature uniformity at a moderate price.
It is recommended for a variety of laboratory and production applications
including drying, curing, annealing and materials testing.
A top-mounted fan draws air through the heater coils and propels it back
to the chamber through plenums in the side walls, resulting in consistent,
uniform temperatures. Powerful open coil heating elements and a forward
curved fan deliver faster heat-up rates and short processing times. Digital
controls regulate temperatures within tight tolerances.
e LBB is designed and manufactured to provide years of dependable
service. e fan and heater are top-mounted to prevent damage from
spills. When spills do occur, the corrosion-resistant stainless steel interior
and nickel plated shelves clean up easily. e motor is permanently
lubricated and virtually maintenance free. And Despatch warrants the
heater performance for a full ve years – the best warranty in the industry.
FEATURES AT A GLANCE
u Forced convection from top-mounted
fan and plenums on sides of chamber
u Temperatures up to 204° C (400° F)
u 304 Stainless steel interior
u Digital control with 3/4" (1.9cm)
LED display
u Nickel plated shelves - by model
rated to 50 or 200lbs (23 or 91kg)
u High-limit control
u Five year heater warranty
u UL and C-UL listed
FAN HEATING ELEMENT
EXHAUST
C US LISTED
MinneaPolis • shanGhai • berlin • sinGaPore • hsinchu
OPTIONS
u Light duty shelves rated to 50 lbs (23kg)
u Reinforced shelves rated to 200 lbs (91kg)
u Protocol 3
TM
control with large LCD display,
integrated data logging capabilities and USB
port for simple oven set-up and data export
u Controls and fan on bottom of oven
u Door with window and interior light
u Oven stacking hardware
u Process timer
u Chart recorder
u Access ports
u Oven stand
u CE compliance
Warning: Not for use with flammable or combustible materials. If your process has flammable solvents, contact Despatch.
LBB 1-23 1-43 1-69 2-12 2-18/2-18P* 2-27/2-27P*
Physical sPecifications
Chamber size (width x depth x height)
*Clear opening width is reducing 1 1/2”
(3.8cm) due to 3/4” (1.9cm) shelf supports
on each side.
Capacity in cubic feet (liters) 2.3 (65) 4.3 (122) 6.9 (195) 12.1 (343) 18 (510) 27.7 (784)
Overall size (width x depth x height)
*Depth includes exhaust port
Electrical:
50/60 hertz - single phase
*Oven will run on 208V with a
25% reduction in heater output
Number of shelves provided
Maximum number of reinforced shelves NA NA 5 on 4 in. centers* 8 on 4 in. centers* 8 on 4 in. centers* 8 on 4 in. centers*
Maximum number of light duty shelves 5 on 2 in. centers* 10 on 2 in. centers* 10 on 2 in. centers 16 on 2 in. centers 16 on 2 in. centers 16 on 2 in. centers
Cord and plug
Number of doors 1 1 2 2 2 2
Approximate net weight 140 lbs (63 kg) 195 lbs (88 kg) 245 lbs (112 kg) 315 lbs (144 kg) 400 lbs
Approximate shipping weight 205 lbs (92 kg) 270 lbs (121 kg) 320 lbs (146 kg) 385 lbs (175 kg) 485 lbs* (221 kg)* 635 lbs* (289 kg)*
Volts*
Amps 11.6 5.8 15 7.5 21.6 10.8 16.4 amps 16.4 amps 16.4 amps
Heater kW 1.2 kW 1.6 kW 2.4 kW 3.6 kW 3.6 kW 4.8 kW
FUNCTIONAL SPECIFICATIONS
Time to temp with no load (40˚C to 150˚C) 17 minutes 17 minutes 15 minutes 15 minutes 17 minutes 17 minutes
Time to temp with no load (40˚C to 204˚C) 30 minutes 30 minutes 26 minutes 30 minutes 33 minutes 33 minutes
Recovery time after door open 1 min. (150˚C) 2 minutes 2 minutes 3 minutes 3 minutes 3 minutes 4 minutes
Recovery time after door open 1 min. (204˚C) 4 minutes 4 minutes 6 minutes 6 minutes 7 minutes 8 minutes
Temperature uniformity
Based on 9 point test in empty oven
Operating range with 20
Control stability +/- 0.5˚C +/- 0.5˚C +/- 0.5˚C +/- 0.5˚C +/- 0.5˚C +/- 0.5˚C
Maximum load capacity 200 lbs. (91 kg) 200 lbs. (91 kg) 400 lbs. (181 kg) 600 lbs. (272 kg) 600 lbs.
Maximum shelf capacity (standard) 50 lbs. (23 kg) 50 lbs. (23 kg) 50 lbs. (23 kg) 50 lbs. (23 kg) 50 lbs. (23 kg) 50 lbs. (23 kg)
Maximum shelf capacity (reinforced) n/a n/a 200 lbs. (91 kg) 200 lbs. (91 kg) 200 lbs. (91 kg) 200 lbs. (91 kg)
Exhaust capacity Adj. to 1 CFM
*The LBB2-18P and LBB2-27P are available in pass through door operation. Chamber depth increases by 2 1/2” (6.4cm) plus overall depth increases by 1 1/2” (3.8cm) Please contact
Despatch for exact specifications and more information. 2 reinforced shelves shipped standard on LBB1-69, 2-12, 2-18 and 2-27. 2 light duty shelves standard on LBB 1-23 and 1-43.
Notes: Uniformity figures are based on a nine-point test conducted in an empty oven after stabilization period. Uniformity can vary slightly depending on unit and operating
conditions. Time to temperature, recovery time, and temperature uniformity are based on 240V/60hz operation, with control panel on top. Actual results may vary slightly depending
on unit configuration and operating conditions. Minimum operating temperature is based on 20ºC ambient temperature measured at the fresh air inlet with the exhaust air damper
fully open. Maximum load capacity figures are only for standard configurations with controls on top. Specifications are subject to change without notice.
0
C ambient 35˚C - 204˚C 35˚C - 204˚C 35˚C - 204˚C 40˚C - 204˚C 40˚C - 204˚C 40˚C - 204˚C
18 x 18 x 12 in.
46 x 46 x 31 cm
24 x 24.5 x 26 in.
61 x 62 x 66 cm
120 240 120 240 120 240 240 240 240
2 2 2 2 2 2
15 amp 20 amp 15 amp None - hardwire None - hardwire None - hardwire None - hardwire
+/- 3˚C at 150˚C
+/- 4˚C at 204˚C
(0.5 lps)
24 x 14 x 22 in.
61 x 36 x 56 cm
30 x 20.5 x 36.5 in.
76 x 52 x 93 cm
+/- 3˚C at 150˚C
+/- 4˚C at 204˚C
Adj. to 2 CFM
(0.94 lps)
30 x 18 x 22 in.
76 x 46 x 56 cm
36 x 24.5 x 36.5 in.
91 x 62 x 93 cm
+/- 3˚C at 150˚C
+/- 4˚C at 204˚C
Adj. to 3 CFM
(1.4 lps)
30 x 20 x 35 in.
77 x 51 x 89 cm
36 x 26.5 x 51.5 in.
91 x 67 x 131 cm
+/- 3˚C at 150˚C
+/- 4˚C at 204˚C
Adj. to 12 CFM
(5.71 lps)
37 x 24
* x 35 in.
94 x 61* x 89 cm
43 x 30.5* x 51.5 in.
109 x 78* x 131 cm
* (182 kg)* 550 lbs* (250 kg)*
+/- 3˚C at 150˚C
+/- 4˚C at 204˚C
* (272 kg)* 600 lbs.* (272 kg)*
Adj. to 14 CFM
(6.61 lps)
37 x 37* x 35 in.
94 x 94* x 89 cm
43 x 43.5* x 51.5 in.
109 x 111* x 131 cm
+/- 3˚C at 150˚C
+/- 4˚C at 204˚C
Adj. to 14 CFM
(6.61 lps)
service and technical suPPort
service parts: 1-800-473-7373
international service/main: 1-952-469-8230
service fax: 1-952-469-8193
service@despatch.com
Global headquarters
phone: 1-888-DESPATCH (1-888-337-7282)
international/main: 1-952-469-5424
fax: 1-952-469-4513
sales@despatch.com
8860 207th Street West
Minneapolis, MN 55044 USA
www.despatch.com
© 2012 Despatch Industries. All rights reserved. Despatch is a registered trademark of Despatch Industries in the U.S. and other countries. LBB 7-12