Universal Enterprise ADM4201 Installation Manual

1-800-547-5740 • Fax: [phone]

www.ueiautomotive.com • email: [e-mail]

ADM4201

INSTRUCTION MANUAL

• Disconnect the test leads from the test points before changing
functions to avoid damaging the meter when testing above 350V AC

• Choose the proper range and function for the measurement ­Always set the meter to the highest range and work downward for
an unknown value if you are using manual ranging mode

• Do not try voltage or current measurements that may exceed the
ratings marked on the input limit for switch or terminal

• Use current probes to measure circuits exceeding 10A

• Disconnect the “LIVE” test lead before disconnecting the
“COMMON” test lead

• Do not test a recently recharged lead-acid battery

• Disconnect the power and discharge all high-voltage capacitors
before testing in the resistance, continuity, and diode functions

• If the engine has been running, do not place the meter and its
accessories near the engine or the exhaust manifold which might
be hot and can damage the meter

• 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

Introduction

The ADM5201 is a handheld battery operated professional automotive
multimeter designed to provide trouble shooting solutions to the most
difficult problems encountered in today’s sophisticated automotive
electronic systems. The ADM4201 has a bright LED backlight. A battery
access door allows users to replace the battery and fuse without breaking
ca l i b r ation seals! High impact over-molded case absorbs shock over more
of the case than a conventional rubber boot design.

Features include

• Accurate RPM measurement for 2 and 4 stroke automotive
engines with 1 to 8 cylinders using the inductive pickup

• ms-pulse Width function to test on-time of both PFI type and
TBI type fuel injectors

• Duty Cycle and direct DWELL reading

• 4 step adjustable triggers on 1 to 8 cylinders

• Temperature measurement up to 2,498˚F or 1,370˚C

• 3-3/4 digit, 4,000 count display with bar-graph
(Frequency range: 99,999 counts)

• Backlit display

• Auto power off

• High impact over-molded case

• CE-mark

• IEC 1010.1-92, CAT II 1000 V rating

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 600 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

• Never attempt a voltage measurement with the test leads inserted
into the “A” terminal and the “C O M” terminal - The “A” terminal is
protected by a fuse. You might be injured or damage the meter

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

• Turn the engine off before connecting or disconnecting inductive
pickup to avoid a shock.

ADM4201-MAN P. 1

LCD Display Functional Description

12. TRIG ±: These annunciators indicate that positive (+) or negative
(-) “Trigger Slope” is selected.

13. 8 TRIG: These annunciators indicate trigger level status.

14. : This symbol indicates the “Re l a t i ve” function is activated.

15. : This symbol indicates “N e g a t i ve Po l a r i t y” .

16. AC: AC annunciator indicates alternating current is selected.

17. DATA: Digital readings of data being measured.

18. AUTO: This annunciator indicates “A u t o ra n g i n g” .

19. : Low battery alert. Replace the battery as soon as possible
to ensure accura cy.

20. : This symbol indicates the “Continuity Te s t ” function is selected.

21. : This symbol indicates the “Diode Te s t ” function is selected.

22 . HOL D : This annunciator indicates the “H o l d ” function is activated.

23 . : This annunciator indicates the “Re c o rd” function is activated.

24. MIN/MAX/AVG: These annunciators indicate Minimum,
M a ximum and Average reading is being displayed.

25. ˚8 CYL...: These annunciators indicate the function being selected
and/or the appropriate measurement units.

26. : Analog bar-graph with sca l e .

C o n t r ols and Indicators

1. LCD Display: 3 - 3 /4 digit, 4000 count display with bar-gra p h .

2. LEVEL Push-button: Press this push-button momentarily to select

trigger levels. Press this push-button for more than 1 second to toggle
b e tween positive and negative trigger slopes.

3. HOLD Push-button: Press this push-button momentarily to
activate “HOL D” for simply freezing a reading. Press this
push-button for more than 1 second to turn the LCD backlight on.

4. SELECTOR: Turn the power ON/OFF and select a function.

5. COM: Common (ground reference) input terminal for all functions
except RPM functions.

6. VΩHz , ms-Pulse & Temp: Input terminal for all functions
except current and RPM functions.

7. RPM +: Input terminal (+) for RPM function.

8. mA A/RPM-: Input terminal (+) for mA A functions. Ground
reference (-) input terminal for RPM function.

9. REC Push-button: Press this push-button momentarily to activate
“Re co r d” function. Press this push-button for more than 1 second
to select “Re l a t i v e Zero” .

10. SELECT Push-button: Press this push-button momentarily to
select (blue colored around selector) secondary functions.

11. RANGE Push-button: Press this push-button momentarily to
select ranges in the manual ranging mode of most functions or
number of cylinders on “D w e l l” function. Press this push-button
momentarily to toggle between the “PFI” mode and the “TBI”
mode when measuring on-time of fuel injectors. Press this
push-button for more than 1 second to toggle “A u t o / M a n u a l”
ranging in most functions.

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ADM4201-MAN P. 2

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5

6

11

10

9

7

8

18 19 20 21 22 23 24

25

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Operating Instructions

Measuring Voltage (V)

To measure DC or AC volts:

1. Set rotary selector to “ “ position. The meter defaults at DC.

2. Press the “SELECT” push-button momentarily to select AC,

if required.

3. Insert red lead into “V” terminal and black lead into “C OM” terminal.

4. Touch black probe to ground or negative side of the circuit and
touch red probe to positive side of the circuit coming from the
power source (Fig 1).

NOTE: Voltage must be measured in parallel (red probe
measuring circuit from power source).

The analog bar graph is easier to read when the data causes the
digital display to rapidly change. It is also useful for trend setting or
directional data.

Measuring Resistance (Ω)

CAUTION!

Turn off power and discharge all capacitors on circuit to be tested
before attempting in circuit resistance measurements. Accurate
measurement is not possible if external or residual voltage is present.

To measure Resistance:

1. Set rotary selector to “Ω “ position. The meter defaults at Ω
function. “

OFL

” is displayed.

2. Insert black lead into “COM” terminal and red lead into
“Ω” terminal.

3. Touch the test lead probes across the resistance or circuit
to be tested (Fig 2).

NOTE: The resistance in the test leads can affect accuracy in the
400Ω range. Short the leads together and press the “REL “
push-button to automatically subtract the test lead resistance
from the measured resistance.

Measuring Continuity ( )

CAUTION!

Turn off power off on the test circuit. A beeper tone does not necessarily
mean zero resistance.

To measure Continuity :

1. Set rotary selector to “Ω “ position.

2. Press the “SELECT” push-button to select “Continuity” function.

“

OFL

” is displayed.

3. Insert black lead into “COM” terminal and red lead into

“Ω” terminal.

4. Touch the test lead probes across the device being tested (Fig 3).

If the resistance of the device is more than 50Ω, there is a continuous
beep tone.

If the resistance of the device is more than 50Ω, there is no beep tone.

This is useful for checking wiring connections and operation of switches.

ADM4201-MAN P. 3

(Fig 1)

(Fig 2)

(Fig 3)

Parallel Connection

Parallel Connection