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DESPATCH |
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NATURAL CONVECTION OVENS |
DESPATCH LEB NATURAL CONVECTION BENCH-TOP OVEN
The Despatch LEB oven features natural convection that provides the most economical thermal processing. It is recommended for a variety of standard laboratory and production applications including drying, curing, annealing and materials testing.
Reliable, trouble-free performance
The LEB is designed and manufactured to provide years of dependable service.
Despatch warrants the heater performance for a full five years.
Every LEB oven is UL and C-UL listed, and receives a thorough performance test before shipping.
Precise digital controls
Digital controls regulate temperatures within tight tolerances. A 3/4" LED panel displays temperatures in large, bright, easy-to-read numbers. Temperatures can be reported in either Fahrenheit or Celsius.
Airflow Design
When forced convection airflow is not required, gravity or natural airflow offers high productivity at low cost. The heater generates quick heat-up as it covers the entire base of the chamber and allows the heated air to move through the perforated chamber floor.
Key Features
Natural convection
Temperatures up to 400°F (204° C)
Precise digital controls
Stainless steel interior
Nickel plated shelves
Five year heater warranty
UL and C-UL listed
Standard features
Natural convection
Digital control with 3/4" LED display
304 stainless steel interior
5-year heater warranty
High-limit control
UL and C-UL listed
Options
Reinforced shelves rated to 100 lbs. (standard shelves rated to 50 lbs.)
Door with window and interior light
Process timer
Access ports
Oven stand
Oven stacking hardware
European Union (CE) Conformance available
Warning: Not for use with flammable or combustible materials. If your process has flammable solvents, ask about the Despatch RFD Ovens.
LEB Physical Specifications
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Model |
Interior Dimensions W● x D x H in" |
Capacity Cu. Ft. |
Exterior Dimensions W x D x H in" |
Single Phase |
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Volts |
Amps |
Hz |
KW |
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LEB 1-23 |
18" x 18" x 12" |
2.3 |
24" x 24.5" x 26" |
120*/240** |
10.4 5.2 |
50/60 |
1.2 |
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LEB 1-69 |
30" x 18" x 22" |
6.9 |
36" x 24.5" x 36.5" |
120*/240** |
20.4 10.2 |
50/60 |
2.4 |
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LEB 2-18 |
37" x 24" x 35" |
18 |
43" x 30.5" x 51.5" |
240** |
15.2 |
50/60 |
3.6 |
●Clear opening is 1 1/2" less than chamber width due to 3/4" shelf supports on each side.
*Standard voltage for LEB 1-23 and LEB 1-69 is 120V. 240V is available as an option.
**Oven will operate at 208V with a 25% reduction in heater output.
LEB Functional Specifications
| Model | Time to Temp 9min, w/ no load* | Operating Range | Control Stability | Max. Load Capacity | Ship Weight (lbs.) | |
| 25-150°C | 25-204°C | |||||
| LEB 1-23 | 20 | 35 | 25-240°C | ±0.5°C | 75 lbs. | 195 |
| LEB 1-69 | 18 | 30 | 25-240°C | ±0.5°C | 100 lbs. | 310 |
| LEB 2-18 | 20 | 36 | 25-240°C | ±0.5°C | 150 lbs. | 475 |
* Time to temperature and recovery time, are based on 240V/60hz operation. Actual results may vary slightly depending on unit configuration and operating conditions.
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