ELECTRICAL SHOCK
•These guidelines must be followed to ensure that the safety mechanisms
in this instrument will operate properly. This instrument must be plugged
into a 115 VAC, 60Hz (230 VAC, 50Hz optional), AC only electric outlet.
The power cord of the instrument is equipped with a three-pronged
grounding plug for your protection against electrical shock hazards. It
must be plugged directly into a properly grounded three-prong receptacle.
The receptacle must be installed in accordance with local codes and ordi-
nances. Consult a qualified electrician. DO NOT use an extension cord or
adapter plug.
•If supplied with user accessible fuses, always replace the fuse with one of
the same rating, voltage, and type.
•Always replace the power cord with an approved cord of the correct rat-
ing and type.
•HIGH VOLTAGE is used in the operation of this equipment. SEVERE
INJURY or DEATH may result if personnel fail to observe safety precau-
tions. Before working inside the equipment, turn power off and discon-
nect power cord.
1.2.2 CAUTIONS
•Always operate this instrument at room temperature between 41°F and
122°F (5°C to 50°C). Allow sufficient air circulation by leaving at least 6
inches (15 cm) of clearance around the instrument. Overhead clearance is
required. DO NOT place unit under any structure.
•Component lifetime can be shortened by continuous high temperature op-
eration.
•DO NOT leave the sleeve(s) in the instrument for prolonged periods. Due
to the high operating temperatures of the instrument, the sleeves should be
removed after each use and buffed with a Scotch-Brite® pad or emery
cloth. (See Maintenance, Section .)
•DO NOT apply any type of voltage to the display hold terminals. Apply-
ing a voltage to the terminals may cause damage to the controller.
•DO NOT use fluids to clean out the well. Fluids could leak into electron-
ics and damage the instrument.
•Never introduce any foreign materialinto the probe hole of the insert.
Fluids, etc. can leak into the instrument causing damage.
•DO NOT change the values of the calibration constants from the factory
set values. The correct setting of these parameters is important to the
safety and proper operation of the calibrator.
•DO NOT slam the probe sheath in to the well. This type of action can
cause a shock to the sensor and affect the calibration.
9140 Dry-well Calibrator
User’s Guide
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