Universal Enterprise DL39 Installation Manual

1-800-547-5740 • Fax: [phone]

www.ueitest.com • email: [e-mail]

DL39

INSTRUCTION MANUAL

• If any of the following indications occur during testing, turn
off the power source to the circuit under test:

• Arcing

• Flame

• Smoke

• Extreme Heat

• Smell of Burning Materials

• Discoloration or Melting of Components

• Read the safety precautions associated with the equipment being

tested and seek assistance or advice when performing
unfamiliar tasks.

• Keep your fingers away from the test lead metal probe contacts

and bus-bars when making measurements. Always grip the
instrument and test-leads behind the hand guards (molded into
the probes).

• In the event of electrical shock, ALWAYS bring the victim to

the emergency room for evaluation, regardless of the victim’s
apparent recovery. Electrical shock can cause an unstable heart
rhythm that may need medical attention.

International Symbols

C o n t r ols and Indicators

1. C l a m p : Used to measure inductive AC current.

Opens to 1 1/4” (32 mm).

CAUTION!

The clamp uses a high-tension spring to close the jaw. DO NOT allow
fingers or objects to become pinched in the base as jaw closes.

2. Conductor Alignment Marks: Used to aid in the visual

alignment of a conductor when measuring inductive ampera g e .
Greatest accura c y is achieved when the conductor inside the clamp
is centered at the intersection of these marks.

3. Hand Guard: Used as a point of reference for the operator’s safety.

WARNING!

Always keep your hands and fingers behind the hand guards when
measuring current on exposed conductors. Contact may result
in serious safety.

Introduction

The DL39 is a hand-held, battery powered digital multimeter with
clamp-on current measuring ca p a b i l i ty. This instrument is ideal for
anyone that needs to make quick, accurate measurements of AC
inductive amperage, AC voltage and resistance. The low voltage DC
function accommodates accessory adapters.

Features include

• AC inductive amps

• AC volts

• DC volts for adapters

• Ohms (resistance)

• Continuity (with audible alert)

• Max capture

• Data hold

• Low battery indicator

• Rugged construction

• Compact size for easy access to tight areas

Safety Notes

Before using this meter, read all safety information carefully. In
this manual the word "WARNING" is used to indicate conditions
or actions that may pose physical hazards to the user. The word
"CAUTION" is used to indicate conditions or actions that may
damage this instrument.

WARNING!

Exceeding the specified limits of this meter is dangerous and can
expose the user to serious or possibly fatal injury.

• DO NOT attempt to measure any voltage that exceeds 600 volts
with this meter - UEi offers numerous alternatives for measuring
high voltage and current

• Voltages above 60 volts DC or 25 volts AC may constitute a
serious shock hazard

• DO NOT attempt to use this meter if either the meter or the test
leads have been damaged. Send unit in for repair by a qualified
repair facility

• Test leads must be fully inserted prior to taking measurements

• Always turn off power to a circuit (or assembly) under test before
cutting, unsoldering or breaking the current path. Even small
amounts of current can be dangerous

• Always disconnect the live test lead before disconnecting the
common test lead from a circuit

• When measuring high voltage, disconnect the power source before
making test lead connections. Connect the test leads to the meter
first then to the circuit under test. Reapply power

DL39-MAN P. 1

LCD Display Functional Description

1. Numerical Value: Displays the total value of the units displayed.

2. Low Battery Indicator: This symbol appears when the battery
needs replacement.

NOTE: A low battery will adversely affect accuracy.

3. P-H: I n d i cate s the meter is displaying the maximum value measured

4. Data Hold: I n d i c ates the value displayed is held on screen
(the data hold button is pressed).

5. Minus: I n d i c ates the value measured has a negative polarity.

6. Continuity: I n d i cate s the meter is in the continuity measurement

mode and will sound a tone when measuring resistance below
approximately 50 ohms.

Operating Instructions

Auto-Power Off

This instrument is turned on and off using the rotary switch. When the
meter is moved out of the OFF position, into any of the measurement
positions, it will begin to display a measured value.

This instrument will remain on as long as it is in a measurement
position to allow long-term monitoring. Always store your meter in
the off position.

Max Capture

Use the “MAX CAPTURE” button on the right side of the instrument to
capture the highest measured value in any selected function or scale.
When Max Capture is selected, the symbol “P-H” appears at the top of
the screen and the highest measured value remains on the LCD display.

NOTE: This numerical data is not reset when the rotary switch is
moved from one function to another. For best, results, set the range
and function you intend to record prior to pressing the Max Capture
button, then leave the rotary switch in that position.

Press the Max Capture button again to return the instrument to the
real-time measurement mode.

4. Data Hold Push-button: Freezes the value displayed on the
digital read-out.

5. Max Capture Button: Used to capture and display the highest
measured value.

6. Clamp Lever: Opens and closes current clamp jaw.

7. Rotary Function Switch: Used to power the meter on and off, or
to select one of the available measurement functions.

NOTE: Measure inductive AC current using the clamp. Measure
volts AC and DC at the test lead inputs, resistance and continuity
at the test lead inputs.

8. Display: C o m m u n i c ates function, range, and value information to
the user.

9. Common Terminal: The black test lead is plugged into this

terminal to supply the ground or “low” reference for
all measurements.

10. Volt/Ohm (V/Ω) Terminal: The red lead is plugged into this
terminal. It is used for AC/DC volts, ohms, and continuity measurements.

11. Maximum Input Statements: M A X 600V indicates that a
m aximum of 600 Volts can be applied between the two terminals of
b e t ween earth ground and any terminal.

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DL39-MAN P. 2

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