User's Manual

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Calibration Manual

• Do not operate the Meter around explosive gas, vapor, or

dust.

• Use only 1.5 V AA batteries, properly installed in the

Meter case, to power the Meter.

• When servicing the Meter, use only specified

replacement parts.

• When using probes, keep fingers behind the finger

guards on the probes.

• Do not use the Low Pass Filter option to verify the

presence of hazardous voltages. Voltages greater than

what is indicated may be present. First, make a voltage

measurement without the filter to detect the possible

presence of hazardous voltage. Then select the filter

function.

• Only use test leads that have the same voltage, category,

and amperage ratings as the meter and that have been

approved by a safety agency.

• Use proper protective equipment, as required by local or

national authorities when working in hazardous areas.

• Comply with local and national safety requirements

when working in hazardous locations.

WCaution

To avoid possible damage to the Meter or to the equipment

under test, follow these guidelines:

• Disconnect circuit power and discharge all high-voltage

capacitors before testing resistance, continuity, diodes,

or capacitance.

• Use the proper terminals, function, and range for all

measurements.

• Do not remove batteries while the Meter is turned on or a

signal is applied to the Meter’s input jacks.

• Before measuring current, check the Meter's fuses. (See

"Testing the Fuses" in the Users Manual on the

accompanying CD.)

• Do not use the LoZ mode to measure voltages in circuits

that could be damaged by this mode’s low impedance

(≈3 kΩ). (Model 289 only)

Hazardous Voltage

To alert you to the presence of a potentially hazardous voltage, when the Meter detects a

voltage ≥30 V or a voltage overload (OL), the

Ysymbol is displayed.