Microprocessor
Bench Ovens

BULLETIN
BH-251

MICROPROCESSOR
CONTROLLED
FORCED CONVECTION
BENCH OVENS


 

Grieve Bench Ovens with microprocessor temperature control and forced convection are designed for the laboratory requiring the unmatched accuracy and precision of microprocessor technology in a convenient, portable unit. They provide excellent uniformity and temperature control, rapid rise and recovery times.

STANDARD FEATURES Back to Top

—Temperatures to 300°C (572°F)
—Proportional temperature control
—Digital set point guarantees repeatable settings
—Large digital temperature display of set point and oven temperature
—Platinum RTD temperature sensor
—Over-temperature protection system
—Panel lights indicate over-temperature condition
—304 stainless steel interior
—Enameled steel exterior
—3" insulation all sides
—Plug style door to retain chamber heat
—One-piece silicone door gasket
—Two (2) chrome plated wire shelves, adjustable on 1-3/4" centers
—3-wire line cord
—1 year limited warranty


MP SERIES
Digital microprocessor temperature control system provides the most accurate and reproducible condition possible. Proportioning controller ensures minimal overshoot and excellent temperature control. Temperatures to 300°C (572°F). Choice of capacities — 2.5, 3.5 and 4.4 cubic feet.

 

   
SPECIFICATIONS Back to Top
NOT FOR USE WITH FLAMMABLE SOLVENTS OR VAPORS. OTHER MODELS
AVAILABLE FOR THESE APPLICATIONS–PLEASE CONSULT FACTORY
Model
Work Space
Outside
Dimensions
(WxDxH)
Max
Temp
Blower
Number
of
Shelves
Insu-
lation
Watts
Operating Characteristics†
Approx
Shipping
Weight
Dimensions
(WxDxH)
Volume
Cu Ft
CFM HP Control
Accuracy
Oven
Uniformity
Rise Time
MPA-271 13" x 17.125" x 19.5" 2.5 21.625" x 25.25" x 35.5" 300°C 125 1/15 2 3" 1300 ± 0.1°C ± 1°C 40 min 150 lbs
MPB-271 18" x 17.125" x 19.5" 3.5 26.625" x 25.25" x 35.5" 300°C 125 1/15 2 3" 1900 ± 0.1°C ± 1°C 40 min 170 lbs
MPC-271 23" x 17.125" x 19.5" 4.4 31.625" x 25.25" x 35.5" 300°C 125 1/15 2 3" 1900 ± 0.1°C ± 1°C 40 min 180 lbs
  †Accuracy and uniformity at 100°C. Rise Time in minutes to 200°C. Tests
run with empty oven and minimum exhaust. Performance will vary with
load, exhaust rate and application. See Bulletin TC-920 for additional details.
STANDARD EQUIPMENT   Back to Top
Standard Electrical Characteristics
— 120 volts, 50-60 Hz, 3-wire cord and plug
— 240 volts, 50-60 Hz, 3-wire cord
— Other electrical characteristics available

Standard Temperature Control System

MP SERIES

Microprocessor temperature control system provides the unmatched accuracy, precision and convenience of microprocessor technology. Proportional temperature control ensures accurate temperature regulation. Digital set guarantees repeatable settings and a large digital temperature display indicates oven temperature. A platinum RTD monitors and responds instantly to the temperature of the workload. Optional programmable control (ramp/dwell capability) and timer are listed below.

For over-temperature protection, a second control system consisting of an independent hydraulic thermostat, set by the operator to a temperature slightly higher than the set point, provides a mechanical back-up should the microprocessor fail. A red panel lamp signals an over-temperature situation.


Circulation Diagrams
(Front View)

MP Series


 

 
ADDITIONAL EQUIPMENT AVAILABLE Back to Top
Additional Shelves, 25 lbs distributed load per shelf, 75 lbs maximum oven load, specify oven model when ordering.

Programmable Temperature Controller, microprocessor based, digital indicating, 4 program with 6 steps each, in lieu of standard controller...
not available on 240 volt ovens.
Option MPTC 

 

 
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Specifications Subject to Change Without Notice
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