3 Specifications and Environmental Conditions
3.1 Specifications
The following table lists the specifications for this instrument. Accuracy speci-
ficationsare ap plicable for a one-year calibration interval. In line with normal
prudent metrologypractices, Hart Scientific recommends a short-cycle interval
of six monthsfor newunits during the first year.
9105 9107
Power 115VAC (±10%), 50/60 Hz, 230 VAC (±10%), 350 watts
AmbientTemperature 5–50°C(40–120°F)
OperatingRange –25°Cto 140°C
(–32°Cto 284°F)
at25°C (77°F)
–45°Cto 140°C
(–49°Fto 285°F)
at25°C (77°F)
Resolution 0.01°Cor 0.01°F
Accuracy:
DrilledWells
±0.2°C(0.36°F)
CenterWell ±0.1°C(0.18°F) with 6.35 mm (1/4”)probe
Uniformity:
DrilledWells
±0.05°C(0.09°F)
CenterWell ±0.2°C(0.36°F) with 6.35 (1/4”) mm probe
ControlStability 0.02°C(0.04°F)
Controller Hybridanalog/digital controller with data retention
TestWells One3/4" dia. x 6" deep, two 1/4" dia. x 6", one 3/16" dia. x 6" deep, and
one1/8" x 6" deep
Size 12.5"Hx8"Wx10.5"D
Weight 30lb. including well sleeve
Safety OVERVOLTAGE(Installation) CATEGORY II, Pollution Degree 2 per IEC1010-1
FuseRating 115V: 4 A (slow blow) 250 V
230V: 3.15 A (slow blow) 250 V
3.2 Environmental Conditions
Although these instrumentshave been designed for optimum durability and
trouble-freeoperation, they must be handled with care. The instrument should
not beoperated in an excessively dusty or dirty environment. Maintenance and
cleaning recommendationscan be found in the Maintenance Section of this
manual.
The instrument operates safely under thefollowing conditions:
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3Specifications and Environmental Conditions