Model 9300 Temperature Controlled Air Bath

  • Volume 50 Liters
  • Temperature Range 15°C to 35°C
  • Stability +/- ±50mK for ±1°C
  • Peltier Cooled
  • Fast Heating/Cooling Rate
  • Large Working Area
  • Temperature Band Protection
  • Perfect for Temperature Coefficient Measurements
  • Lightweight and Portable
Features & Benefits

The Model 9300 Series Air Baths are designed as a convenient and inexpensive way to maintain the temperature of air resistors in the calibration laboratory. It is large enough to house several standard air resistors and features an adjustable shelf to permit easy access to the standards. These shelves are easily removable in order to place a single ESI type SR104 standard in the bath. The bath is small and rugged and may be moved about easily.

Easy access to the inside of the bath is achieved through the conveniently mounted front door. Resistor leads are brought into the bath through a small, insulated opening in the rear of the unit. The integrated control unit adds convenience as it eliminates a separate controller unit. Temperature control setting is located outside the bath. A vernier type control is used to set the individual temperatures between 15°C and 35°C. A corresponding graph of vernier settings verses temperature is supplied with each unit.

Cooling and heating for the bath is provided for by a thermoelectric peltier element using an internal thermistor as the sensing element. An internal fan is used to move the air inside the bath to providefor better temperature stability and uniformity while maintaining a quiet operation. The internal temperature is shown on a LCD located inside of the bath. The LCD Display module can also be programmed to set over and under control limits. If the temperature should exceed these points, the power to the bath is disconnected.

Specifications
9300S 9300A 9300L 9300
External Dimensions
(W x H x D)
705 x 865 x 640 660 x 940 x 432 875 x 1300 x 700 527 x 451 x 711
Internal Dimensions
(W x H x D)
400 x 375 x 350 510 x 630 x 330 570 x 810 x 410 330 x 356 x 610
Volume (L) ~53 ~106 ~190 ~50
Temperature Range (°C) +15…+50 +15…+40 +15…+50 +15… +35
Temperature Display
Resolution (°C)
0.001 0.001 0.001 0.1
Temperature Set
Resolution (°C)
0.01 0.001 0.01 0.1
Temperature Stability (°C) ±0.005 @ 23°C ±0.005 @ 23°C ±0.005 @ 23°C ±0.050 @ 23°C
Temperature Uniformity (°C) ±0.01 @ 23°C
±0.05 @ 15°C
±0.10 @ 35°C
±0.01 @ 23°C
±0.05 @ 15°C
±0.10 @ 35°C
±0.02 @ 23°C
±0.08 @ 15°C
±0.20 @ 35°C
±0.1 @ 23°C
±0.2 @ 15°C
±0.3 @ 35°C
Heating Rate ~80 min
(+15°C…+50°C)
~100 min
(+15°C…+40°C)
~145 min
(+15°C…+50°C)
~200 min
(+15°C…+35°C)
Cooling Rate ~80 min
(+50°C…+15°C)
~100 min
(+40°C…+15°C)
~160 min
(+50°C…+15°C)
~200 min
(+40°C…15°C)
Temperature Control Cascade PID PID Cascade PID PID
Power Supply 230V 50/60 Hz
(±10%)
100 – 240V 50/60 Hz 230V 50/60 Hz
(±10%)
85 – 265V
47/63 Hz
Wattage (W) 200 300 200 100
Interface RS 232
(USB or Ethernet
as Option)
GPIB RS 232
(USB or Ethernet
as Option)
None
Shelve 2 2 2 2
Access Port 2 x 50mm Dia 1 x 50mm Dia 2 x 50mm Dia 1 x 50mm Dia
Weight (Kg) ~79 ~73 ~150 ~22

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