ThermoWorks 9141 HART SCIENTIFIC FIELD DRY-WELL TEMPERATURE CALIBRATORS - Manual (Page 15)

3 Specifications and Environmental
Conditions
3.1 Specifications
Power 115 VAC (±10%), 50–60 Hz, 1000 Watts and 230 VAC (±10%), 50–60 Hz,
switchable
Ambient Temperature 5–50°C(41–121°F)
Operating Range 50–650°C (122–1202°F)
Resolution 0.1°C or °F resolution
Readout Switchable °C or °F
Accuracy ±0.5°C up to 400°C, ±1°C 400°C to 650°C, ±2°C for holes greater than 6.5
mm (0.25")
Stability ±0.05°C at 100°C, ±0.12°C at 500°C, ±0.12°C at 650°C
Uniformity ±0.1°C below 400°C
±0.5°C with similar sized wells above 400°C
Controller Hybrid analog/digital controller with data retention
Heater 1000 W
Heating Times 12 minutes from ambient to 650°C
Cooling Times 25 minutes from 650°C to 100°C
Stabilization Time 7 minutes
Immersion Depth 124 mm (4.875”)
Cooling 2 speed internal fan
Fault Protection Sensor burnout and short protection, over temperature thermal cutout
Test Wells 1.125" dia. x 4.87" deep. Multi-hole inserts are available.
Size 236 mm H x 109 mm W x 185 mm D (9.3" x 4..3" x 7.3")
Weight 3.6 kg (8 lbs.)
3.2 Environmental Conditions
Although the instrument has been designed for optimum durability and trou-
ble-free operation, it must be handled with care. The instrument should not be
operated in an excessively dusty or dirty environment. Maintenance and clean-
ing recommendations can be found in the Maintenance Section of this manual.
The instrument operates safely under the following conditions:
• temperature range: 5 - 50°C (41 - 122°F)
• ambient relative humidity: maximum 80% for temperature <31°C, de-
creasing linearly to 50% at 40°C
• pressure: 75kPa - 106kPa
• mains voltage within ± 10% of nominal
• vibrations in the calibration environment should be minimized
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3 Specifications and Environmental Conditions
Specifications