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3 Specifications and Environmental Conditions
3.1 Specifications
The following table lists the specifications for this instrument. Accuracy speci
-
fications are applicable for a one-year calibration interval. In line with normal
prudent metrology practices, Hart Scientific recommends a short-cycle interval
of six months for new units during the first year.
9105 9107
Power
115 VAC (±10%), 50/60 Hz, 230 VAC (±10%), 350 watts
Ambient Temperature
5–50°C (40–120°F)
Operating Range
–25°C to 140°C
(–32°C to 284°F)
at 25°C (77°F)
–45°C to 140°C
(–49°F to 285°F)
at 25°C (77°F)
Resolution
0.01°C or 0.01°F
Accuracy:
Drilled Wells
±0.2°C (0.36°F)
Center Well
±0.1°C (0.18°F) with 6.35 mm (1/4”)probe
Uniformity:
Drilled Wells
±0.05°C (0.09°F)
Center Well
±0.2°C (0.36°F) with 6.35 (1/4”) mm probe
Control Stability
0.02°C (0.04°F)
Controller
Hybrid analog/digital controller with data retention
Test Wells
One 3/4" dia. x 6" deep, two 1/4" dia. x 6", one 3/16" dia. x 6" deep, and
one 1/8" x 6" deep
Size
12.5"Hx8"Wx10.5" D
Weight
30 lb. including well sleeve
Safety
OVERVOLTAGE (Installation) CATEGORY II, Pollution Degree 2 per IEC1010-1
Fuse Rating
115 V: 4 A (slow blow) 250 V
230 V: 3.15 A (slow blow) 250 V
3.2 Environmental Conditions
Although these instruments have been designed for optimum durability and
trouble-free operation, they must be handled with care. The instrument should
not be operated in an excessively dusty or dirty environment. Maintenance and
cleaning recommendations can be found in the Maintenance Section of this
manual.
The instrument operates safely under the following conditions:
9105/9107 9
3 Specifications and Environmental Conditions