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STEP BY STEP PROCEDURES:

8

STEP BY STEP PROCEDURES:

7

a.Measuring DC Volts

WARNING!

Do not attempt to make a voltage measurement of
more than 600V or of a voltage level that is unknown. 

Instrument set-up:

FUNC

BLACK RED 

MIN

MAX

TEST LEAD

TEST LEAD

READING

READING

DCV

COM

V

1mV

600V

Measurement Procedure:

1.

Disconnect power to circuit to be measured.

2.

Plug the black test lead into the 

COM 

input jack.

3

Plug red test lead into 

V/

input jack.

4.

Set rotary switch on 122 to desired range in 

DCV

function depending on the voltage to be measured.

5.

Connect the test leads to the circuit to be measured.

6.

Reconnect power to the circuit to be measured.

7.

Read the voltage on the 122.

b.  Measuring AC Volts

WARNING!

Do not attempt to make a voltage measurement of more than
1000V or of a voltage level that is unknown. 

Instrument set-up:

FUNC

BLACK RED 

MIN

MAX

TEST LEAD

TEST LEAD

READING

READING

ACV

COM

V/

1mV

600V

Measurement Procedure:

1.

Disconnect power to circuit to be measured.

2.

Plug the black test lead into the 

COM 

input jack.

3.

Plug red test lead into 

V/

input jack.

4.

Set rotary switch on the 122 to desired range in 

ACV

function depending on the voltage to be measured.

5.

Connect the test leads to the circuit to be measured.

6.

Reconnect power to the circuit to be measured.

c. Measuring Resistance

WARNING!

Do not attempt to make resistance measurements with
circuit energized. For best results, remove resistor 
completely from circuit before attempting to measure. 

NOTE:

To make accurate low ohm measurements, short ends of test leads togeth-
er and record resistance reading.  Deduct this value from actual readings.

Instrument set-up:

FUNC

BLACK RED 

MIN

MAX

TEST LEAD

TEST LEAD

READING

READING

OHM

COM

V

1

2.000k

Measurement Procedure:

1.

Disconnect power to the circuit to be measured.

2.

Plug the black test lead into the 

COM 

input jack.

3.

Plug the red test lead into the 

V/

input jack.

4.

Set rotary switch on the 122 to 

2k

function 

depending on the voltage to be measured.

5.

Connect the test leads to the circuit to be measured.

6.

Read the resistance value on the 122.

d.

Continuity Buzzer

WARNING!

Do not attempt to make continuity measurements with
circuit energized.

Instrument set-up:

FUNCTION

BLACK  TEST LEAD

RED TEST LEAD

OHM(     )

COM

V

Measurement Procedure:

1.

Disconnect power to the circuit to be measured.

2.

Plug the black test lead into the 

COM 

input jack.

3.

Plug the red test lead into the 

V/

input jack.

4.

Set the rotary switch on the 122 to the       position.

5.

Connect the test leads to the circuit to be measured.

6.

Listen for the buzzer to confirm continuity.

e.  Data Hold

Press the 

DATA-H

button at any time on any function or

range to freeze the reading on the LCD display.  This func-
tion is very useful when measuring in locations where the
display is difficult to read.

Standard Accessories

Part No.

9V Battery

A009

Test Lead Set

A040

Rubber Boot (122 only)

A121

Optional Accessories

Part No.

Deluxe Test Lead Set

SDK1C

Microamp Adapter

A112

Temperature Adapter

A301

Carbon Monoxide Accessories

A701/A702/A711

Boot Hook

A120

Soft Carrying Case

A255

Carrying Case for multiple instruments

A901

*These accessories have not been evaluated by UL and are
not considered as part of the UL Listing of this product.

MAINTENANCE

1.

Battery Replacement:

The 122 will display BAT when the internal 9 Volt

battery needs replacement. The battery is replaced as follows:

a.

Disconnect and remove all test leads from live circuits and from 122.

b.

Remove the 122 from its protective boot.

c.

Remove the four screws from back of 122 housing.

d.

Carefully pull apart front and rear instrument housing.

e.

Remove old battery and replace it with new battery.

f.

Reassemble instrument in reverse order from above.

2.

Cleaning your 122

Use a mild detergent and slightly damp cloth to clean the surfaces of 122.

Digital Multimeter 122

Instruction Manual

Test Products International, Inc.

9615 SW Allen Blvd., Ste. 104

Beaverton, OR USA  97005

503-520-9197 • Fax: 503-520-1225

tpiusa@msn.com

Test Products International, Ltd.

342 Bronte Road South, Unit 9

Milton, Ontario  L9T5B7

Canada

905-693-8558  •  Fax: 905-693-0888

L122M • 12/1/97  copyright © 1998 Test Products International, Inc.

STEP BY STEP PROCEDURES:

9

STEP BY STEP PROCEDURES:

10

Summary of Contents for 122

Page 1: ...test leads to the circuit to be measured 6 Read the resistance value on the 122 d Continuity Buzzer WARNING Do not attempt to make continuity measurements with circuit energized Instrument set up FUNCTION BLACK TEST LEAD RED TEST LEAD OHM COM VΩ Measurement Procedure 1 Disconnect power to the circuit to be measured 2 Plug the black test lead into the COM input jack 3 Plug the red test lead into th...

Page 2: ...TION RISK OF ELECTRIC SHOCK AC ALTERNATING CURRENT DC DIRECT CURRENT REFER TO INSTRUCTION MANUAL GROUND DOUBLE INSULATION ON OFF PUSH BUTTON SWITCH Features and Benefits Safety Meets CE and IEC 1010 requirements UL Listed Large LCD Easy to read at all angles and the majority of lighting levels Data Hold Freeze readings on the display Rubber Boot Added protection when the instrument is dropped 122N...

Page 3: ...TION RISK OF ELECTRIC SHOCK AC ALTERNATING CURRENT DC DIRECT CURRENT REFER TO INSTRUCTION MANUAL GROUND DOUBLE INSULATION ON OFF PUSH BUTTON SWITCH Features and Benefits Safety Meets CE and IEC 1010 requirements UL Listed Large LCD Easy to read at all angles and the majority of lighting levels Data Hold Freeze readings on the display Rubber Boot Added protection when the instrument is dropped 122N...

Page 4: ...TION RISK OF ELECTRIC SHOCK AC ALTERNATING CURRENT DC DIRECT CURRENT REFER TO INSTRUCTION MANUAL GROUND DOUBLE INSULATION ON OFF PUSH BUTTON SWITCH Features and Benefits Safety Meets CE and IEC 1010 requirements UL Listed Large LCD Easy to read at all angles and the majority of lighting levels Data Hold Freeze readings on the display Rubber Boot Added protection when the instrument is dropped 122N...

Page 5: ...TION RISK OF ELECTRIC SHOCK AC ALTERNATING CURRENT DC DIRECT CURRENT REFER TO INSTRUCTION MANUAL GROUND DOUBLE INSULATION ON OFF PUSH BUTTON SWITCH Features and Benefits Safety Meets CE and IEC 1010 requirements UL Listed Large LCD Easy to read at all angles and the majority of lighting levels Data Hold Freeze readings on the display Rubber Boot Added protection when the instrument is dropped 122N...

Page 6: ...TION RISK OF ELECTRIC SHOCK AC ALTERNATING CURRENT DC DIRECT CURRENT REFER TO INSTRUCTION MANUAL GROUND DOUBLE INSULATION ON OFF PUSH BUTTON SWITCH Features and Benefits Safety Meets CE and IEC 1010 requirements UL Listed Large LCD Easy to read at all angles and the majority of lighting levels Data Hold Freeze readings on the display Rubber Boot Added protection when the instrument is dropped 122N...

Page 7: ...TION RISK OF ELECTRIC SHOCK AC ALTERNATING CURRENT DC DIRECT CURRENT REFER TO INSTRUCTION MANUAL GROUND DOUBLE INSULATION ON OFF PUSH BUTTON SWITCH Features and Benefits Safety Meets CE and IEC 1010 requirements UL Listed Large LCD Easy to read at all angles and the majority of lighting levels Data Hold Freeze readings on the display Rubber Boot Added protection when the instrument is dropped 122N...

Page 8: ...test leads to the circuit to be measured 6 Read the resistance value on the 122 d Continuity Buzzer WARNING Do not attempt to make continuity measurements with circuit energized Instrument set up FUNCTION BLACK TEST LEAD RED TEST LEAD OHM COM VΩ Measurement Procedure 1 Disconnect power to the circuit to be measured 2 Plug the black test lead into the COM input jack 3 Plug the red test lead into th...

Page 9: ...test leads to the circuit to be measured 6 Read the resistance value on the 122 d Continuity Buzzer WARNING Do not attempt to make continuity measurements with circuit energized Instrument set up FUNCTION BLACK TEST LEAD RED TEST LEAD OHM COM VΩ Measurement Procedure 1 Disconnect power to the circuit to be measured 2 Plug the black test lead into the COM input jack 3 Plug the red test lead into th...

Page 10: ...test leads to the circuit to be measured 6 Read the resistance value on the 122 d Continuity Buzzer WARNING Do not attempt to make continuity measurements with circuit energized Instrument set up FUNCTION BLACK TEST LEAD RED TEST LEAD OHM COM VΩ Measurement Procedure 1 Disconnect power to the circuit to be measured 2 Plug the black test lead into the COM input jack 3 Plug the red test lead into th...

Page 11: ...test leads to the circuit to be measured 6 Read the resistance value on the 122 d Continuity Buzzer WARNING Do not attempt to make continuity measurements with circuit energized Instrument set up FUNCTION BLACK TEST LEAD RED TEST LEAD OHM COM VΩ Measurement Procedure 1 Disconnect power to the circuit to be measured 2 Plug the black test lead into the COM input jack 3 Plug the red test lead into th...

Page 12: ...test leads to the circuit to be measured 6 Read the resistance value on the 122 d Continuity Buzzer WARNING Do not attempt to make continuity measurements with circuit energized Instrument set up FUNCTION BLACK TEST LEAD RED TEST LEAD OHM COM VΩ Measurement Procedure 1 Disconnect power to the circuit to be measured 2 Plug the black test lead into the COM input jack 3 Plug the red test lead into th...

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