Digital Filter Exponential with adjustable time constant (1 to 60 seconds)
Remote Communications RS-232 serial
Display LCD, 6-digit x 7-segment with 16-character alphanumeric
Operating Temperature Range 0 to 40°C (32 to 104°F) absolute
15 to 35°C (59 to 95°F) full accuracy
Power 12 VDC (AC adapter included)
Rechargeable NiMH batteries (included)
Safety OVERVOLTAGE (Installation) CATEGORY II, Pollution Degree 2 per
IEC1010-1 refers to the level of Impulse Withstand Voltage protec
-
tion provided. Equipment of OVERVOLTAGE CATEGORY II is en
-
ergy-consuming equipment to be supplied from the fixed installation.
Examples include household, office, and laboratory appliances.
Size 7.75"H x4.2"Wx1.5"D (20 cm H x 11 cm W x 4 cm D)
Weight 0.4 kg (1.0 lb.)
†
Accuracy specifications apply from 15 to 35°C. Accuracy specifications over the entire absolute operating
range are 1.5 times the stated values. Temperature accuracy does not include probe uncertainty or probe
characterization errors. The practical measurement range may be limited by the sensor.
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, dirty, or wet environment. Maintenance and
cleaning recommendations can be found in the Maintenance section of this
manual.
For full accuracy, operate the instrument in ambient temperatures between
15-35°C (59-95°F). Do not operate the instrument in an environment colder
than 5°C (41°F) or warmer than 50°C (122°F).
The instrument operates safely under the following conditions:
•
Operating temperature range: absolute 5–50°C (41–122°F);
full accuracy15-35°C (59-95°F)
•
ambient relative humidity: maximum 80% for temperature <31°C, de
-
creasing linearly to 50% at 40°C
•
Pressure: 75kPa-106kPa
•
Vibration should be minimized
•
Altitude less than 2,000 meters
•
Indoor use only
1521 Handheld Thermometer Readout
User’s Guide
10
