Cautions - Fluke 9142 User Manual

Before You Start
Safety Information
If supplied with user accessible fuses, always replace the fuse with one of the same rating, volt-
age, and type.
Always replace the power cord with an approved cord of the correct rating and type.
HIGH VOLTAGE is used in the operation of this equipment. SEVERE INJURY or DEATH
may result if personnel fail to observe safety precautions. Before working inside the equipment,
turn power off and disconnect power cord.
-P Model Only
When using test leads, keep fingers behind the finger guards on the test leads.
DO NOT apply more than the rated voltage, as marked on the instrument, between the termi-
nals, or between any terminal and earth ground (30 V 24 mA max all terminals).
Never touch the probe to a voltage source when the test leads are plugged into current
terminals.
Select the proper function and range for your measurement.
Inspect the test leads for damaged insulation or exposed metal. Check test leads continuity.
Replace damaged test leads before you use the calibrator.
1.4.2

Cautions

To avoid possible damage to the instrument, follow these guidelines:
DO NOT leave the inserts in the instrument for prolonged periods. Due to the high operating
temperatures of the instrument, the inserts should be removed after each use and buffed with a
Scotch-Brite® pad or emery cloth (see Section 5 Maintenance on page 35).
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 of 1 meter (3 ft) is required. DO NOT place instrument under
any structure.
Component lifetime can be shortened by continuous high temperature operation.
DO NOT apply any type of voltage to the display hold terminals. Applying a voltage to the
terminals may cause damage to the controller.
DO NOT use fluids to clean out the well. Fluids could leak into electronics and damage the
instrument.
Never introduce any foreign material into the probe hole of the insert. Fluids, etc. can leak into
the instrument causing damage.
Unless recalibrating the instrument 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.
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