Weight
2.2 lb. (1.0 kg)
Safety
OVERVOLTAGE (Installation) CATEGORY II, Pollution Degree 2 per
IEC 1010-1
1
Accuracy specifications apply within the recommended operating temperature range. Accuracy limits are
increased by a factor of the temperature coefficient outside this range.
2
Short-term accuracy includes nonlinearity and noise uncertainties. It does not include drift or calibration
uncertainties.
3
The temperature range may be limited by the sensor.
4
Temperature accuracy is for the 1502A only. It does not include probe uncertainty or probe characteriza
-
tion errors.
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:
• Ambient temperature range: Absolute 0–55°C (32–131°F); [full accuracy
16–30°C (61–86°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 should be minimized
•
Altitude less than 2,000 meters
•
Indoor use only
1502A Thermometer Readout
User’s Guide
10
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