Quincy Lab 21-250ER Digital Forced Convection Bench Oven
Quincy Lab 21-250ER Digital Forced Convection Bench Oven
Quincy Lab 21-250ER Steel Digital Forced Convection Bench Oven,7 Cubic feet 115 Volt, Ramp & Soak Digital Controls, 1050W, 300°F(150°C)
Used for drying, baking finishes, preheating, curing, dehydrating and many other processes. Models ending in "ER" come with digital PID microprocessor temperature controllers.
Standard Features
- Fan forced air circulation for even work area temperature. Incoloy Sheathed elements of low watt density and large 7/16" diameter for long life
- 6 lb mineral wool high density insulation for reduced heat loss and efficient operation
- Adujstable shelves on 1½" centers for total of eleven in either model
- Piano type door hinges for proper alignment and fit
- HIGH/LOW heat switch to help maintain greater sensitivity at lower set temperature
- Baked in scratch resistant finish - six foot cord with plug furnished on all models
- All bench ovens have aluminized interiors. High impact thermoplastic cool handles are used
- Model 21-250ER-1 have a 6' electrical cord with a 3 prong 20AMP plug
- The amps rating above is based on 115 volt
- Gasketed doors
- Full 18 month guarantee
Features on Model 21-250ER-1
- Combines 21 series design and dimensions with a precise digital PID microprocessor temperature controller. This microprocessor with a J type thermocouple will hold set temperatures accurately within 1 degree with improved chamber uniformity. Control features include large easy-to-read dual LED display, showing both set and process temperatures, select C or F units, autotune feature helps optimize PID parameters to balance oven performance for various work loads and applications. A versatile on/off control mode allows for even faster temperature recovery times and processing of batch-style work loads not requiring accurate temperature stability.
Digital P.I.D. microprocessor:
Our new and easy-to-use P.I.D. microprocessor not only provides ease of temperature setting but also provides you with ramp & soak capability and a countdown timer, facilitating the most demanding applications. Our digitally controlled Bench Ovens use a ‘J’-type thermocouple.
Product Specifications:
| GENERAL SPECIFICATIONS | 21-250ER |
| INTERIOR DIMENSIONS | |
| INCHES W x H x D | 25.5x20x24 |
| (CM) W x H x D | 64x50x60 |
| EXTERIOR DIMENSIONS | |
| INCHES W x H x D | 33x24x35.5 |
| (CM) W x H x D | 83x60x90 |
| CAPACITY | |
| CUBIC FEET | 7 |
| (LITERS) | 198 |
| TEMPERATURE MAXIMUM | |
| FAHRENHEIT | 300 |
| CENTIGRADE | 150 |
| SHELVES (1-1/2" CENTERS) | |
| MAXIMUM PER UNIT | 11 |
| MAXIMUM POUNDS / SHELF | 80 |
| ELECTRICAL | |
| VOLTS/AMPS | 115/8.75 |
| WATTS | 1050 |
| PLUG/NEMA | 5-15P |
| WEIGHT | |
| SHIPPING | 185 |
| STAND ALONE | 165 |
| CONTROL SENSITIVITY | |
| @ 100C | +/- 1.0/ 0.2° C |
| @ 200C | NA |
| UNIFORMITY | |
| @ 100C | +/- 2.5/ 2.0° C |
| @ 200C | NA |
| TIME TO TEMPERATURE | |
| AMBIENT TO 100C | 15 Min. / 16 Min. |
| AMBIENT TO MAX | 36 Min. / 38 Min |
| RECOVERY @ 150C | |
| DOOR OPEN 15 SEC. | 4 Min. / 5 Min. |
| DOOR OPEN 30 SEC. | 5 Min. / 6 Min |
| REPEATABILITY @ 150C | |
| (SET POINT DRIFT)** | +/- 2.0/ 0.5° C |
| AIR CHANGES MAX / HOUR | |
| @150C WITH NO LOAD | 8 to 12 |
| MAX CHAMBER AIR VELOCITY | 7 ft/sec |
| ENERGY EFFICIENCY @ 150C | |
| % DUTY CYCLE | 80% |
| RUN COST / HOUR @ $0.22/KWH | $0.18 |
