Kaise SK-8402 Instruction Manual

SK

-8402

Instruction Manual

SK-8402 取扱説明書（英文）表1

O2 SENSOR CHECKER

CONTENTS

Thank you for purchasing KAISE "SK-8402 O2 SENSOR CHECKER". To obtain the maximum performance of
this instrument, read this Instruction Manual carefully, and take safe measurement.

SAFETY PRECAUTIONS
OPERATING PRECAUTIONS
FEATURES
UNPACKING AND INSPECTION
NAME ILLUSTRATION
SPECIFICATIONS

1. General Specifications

2. Measurement Specifications

3. LCD Specifications

4. Simulation Test

BEFORE USE

1. Types of O2 Sensors

2. Battery Installation

3. Confirmation of O2 Sensor Cables

4. Colors of O2 Sensor Cables

PREPARATION FOR USE

1. Inspection of Check Harness and
Test Lead

2. Check Harness Connection

BASIC CONNECTION DIAGRAM
NORMAL TEST

1. Measurement Flow Chart

2. Measurement Procedure with
Check Harness

3. Measurement Procedure with
Test Pin

SIMULATION TEST
MAINTENANCE

1. Battery Replacement

2. Periodical Check and Calibration

TROUBLE SHOOTING
WARRANTY

1〜5
6〜7

10

8
9

11〜12

13〜14

13

14

15
16
17
17

24

25〜31

32〜33
34〜38

39
39

41

23

SK-8402 取扱説明書（英文）表2

INTRODUCTION

40

21〜22

18〜20

SK-8402 取扱説明書（英文）_P1

SAFETY PRECAUTIONS (strict observance is required)

1

This instruction manual contains the important contents to prevent harm to user or others and damage of
property, and to use the instrument safely and correctly.
Read this manual carefully and obey the contents after having understand the following terms and symbols.

■The points where the following symbols are attached in this manual describe the degree of harm and
damage that would be caused by incorrect usage due to neglect of this description.

WARNING

CAUTION

This symbol in this manual advises the user of an electrical shock
hazard that could result in serious injury or even death.

This symbol in this manual advises the user of an electrical shock
hazard that could cause injury or material damages.

■The points where the following symbols are attached in this manual describe the matters which must obey

in accordance with the each meanings. (following symbols are some examples.)

This symbol shows the warnings and cautions.

This symbol shows the prohibited matters.

This symbol shows the matters that is forced to do.

2

SK-8402 取扱説明書（英文）_P2

SAFETY PRECAUTIONS (strict observance is required)

WARNING

Be careful about your hands, gloves and clothes not to be caught in the engine belt or cooling fan.

Important to prevent injury.

Do not to touch the heated part of the engine such as exhausting parts.

Important to prevent burn injury.

Be careful not to catch your feet in the test leads.

Important to prevent injury.

Confirm that the shift lever is set to "Parking" position (set to "Neutral" for stick shift car).

The car runs accidentally and could cause unexpected accident, electric shock, or damage
to the instrument or the car.

Confirm that the parking brake is applied.

The car runs accidentally and could cause unexpected accident, electric shock, or damage
to the instrument or the car.

Take the measurement or its preparation under well-ventilated environment.

Carbon monoxide poisoning may occur due to the engine running during the measurement.

Use the "car lift" when lifting the car for measurement preparation.

Important to prevent any accident.

Use the supplied test leads and cables when taking the measurement.

Important to prevent any accident, electric shock, or damage to the instrument or the car.

SK-8402 取扱説明書（英文）_P3

3

SAFETY PRECAUTIONS (strict observance is required)

WARNING

Do not drive the car keeping the instrument connected.

Unexpected accident, electric shock, fire, or damage to the instrument or the car may occur.

Do not work under the car when it is jacked up.

Unexpected accident may occur.

Do not open the battery cover keeping the instrument connected to the car.

Electric shock may occur.

Do not replace the battery with the wet hands.

Electric shock may occur.

Keep the instrument away from babies or children.

Important to prevent any accident, injury, or electric shock hazard.

Do not work in the dark place.

Unexpected accident, electric shock, fire, or damage to the instrument or the car may occur.

Do not point the tip of Test Pin or Check Harness at the person.

Loss of eyesight or injury may occur.

Do not get the instrument wet.

Fire or electric shock may occur.

4

SK-8402 取扱説明書（英文）_P4

Do not attempt to disassemble or modify the instrument.

Fire, electric shock, or damage to the instrument may occur.

Do not use the instrument if it is in the abnormal condition.

Stop using the instrument immediately and consult with your local dealer when recognizing
smoke, strange smell, or abnormal noise.
Using the faulty instrument may cause the unexpected accident, fire, or electric shock.

Do not use the Test Lead or Check Harness with which coating were damaged by heat.

Fire or electric shock may occur.

SAFETY PRECAUTIONS (strict observance is required)

WARNING

Do not use the faulty instrument that can recognize such as display trouble, switch failure.

Stop using the instrument immediately and consult with your local dealer.
Using the faulty instrument may cause the unexpected accident, fire, or electric shock.

SK-8402 取扱説明書（英文）_P5

5

SAFETY PRECAUTIONS (strict observance is required)

CAUTION

Be careful about the instrument or the cables not to be caught in the engine belt or cooling fan.

Short circuit or wire breaking may occur that could cause unexpected accident, electric shock,
or damage to the instrument or the car.

Be careful about the instrument or the cables not to touch the heated part of the engine
such as exhausting parts.

Important to prevent any accident, electric shock, or damage to the instrument or the car.

Do not use this instrument for a purpose other than O2 Sensor measurement.

Unexpected accident or damage to the instrument may occur.

Do not use any battery that have wrong rated specification.

Fire, injury, or damage to the surroundings may occur due to battery explosion or leakage.

Install the battery with the correct polarity as shown in the plus○＋ and minus○− indications.

Installing with wrong polarity may cause fire, injury, or damage to the surroundings due to
battery explosion or leakage.

Do not heat or disassemble the battery. Do not put the battery into the fire or water.

Fire or injury may occur due to battery explosion or leakage.

Dispose the exhausted battery in accordance with the local government rule after applying
adhesive tape to both electrodes for insulation.

Disposing the battery with other conductive materials such as metal pieces may cause
the fire or battery explosion due to their short circuit.

SK-8402 取扱説明書（英文）_P6

6

OPERATING PRECAUTIONS

●SK-8402 is the O2 Sensor Checker for the O2 sensor of Zirconia, Titania 1V and Titania 5V. SK-8402 can not check
deterioration judgment of A/F (air-fuel ratio) Sensor or Rear O2 Sensor.

●Check object of this instrument is O2 sensor unit only. If the other parts are defective, engine trouble might not be
solved even if the O2 sensor is replaced.

●To obtain the stable measurement, keeping the engine speed at approx. 2,500rpm for 3 to 4 minutes to warm up the O2
sensor is necessary. When measuring the car without tachometer, estimate the engine speed by its sound. Keeping the
constant engine speed at approx. 2,500rpm is also necessary during the normal test mode.

●Scanning tool which can live monitor of ECU control is required to check ECU in simulation test.

●Error code is memorized in Engine Control Unit (ECU) when taking off the connector of O2 sensor with the ignition key

switch is activated and the engine is running. Error code must be deleted by using the Code Reader or equivalent tool
to prevent any engine troubles.

●Do not apply any oil to Input Terminal, Test Lead, Check Harness, Alligator Clip or metal part of Test Pin to prevent
contact failure.

●Do not polish the case with the fluid that contains alcohol to prevent the cracking.

●Use this instrument under the environment of 0℃ to 40℃, 80％RH or less to obtain the accurate measurement.

●Test Lead or Check Harness that coating are heat damaged might cause the short circuit. Do not use them and replace

into the new ones.

●Measurement by using the Test Pin might weaken the waterproof property of the connectors of O2 sensor and ECU.
Wrap heat-resistance/waterproof tape around them after taking the measurement.

●Remove the batteries when the instrument is out of use for a long time. The exhaust battery might leak electrolyte and
corrode the inside.

SK-8402 取扱説明書（英文）_P7

7

OPERATING PRECAUTIONS

Cautions for Handling

●Do not apply mechanical shock.

 The shock such as dropping or beating might

damage the instrument and may cause the trouble.

●Do not pull cables forcibly.

 Pulling the cables forcibly, such as when removing

the plugs from terminal, may cause the cable
disconnection.

●It might cause the instrument trouble if taking the
simulation test with mischoice the type of O2
sensor (zirconia, titania 1V or titania 5V).

●Do not take the simulation test for heater cable or
power supply cable during the electric car
components are activated. It may damage to the
instrument.

Cautions for safekeeping

●Do not keep the instrument in the following place.
 ・The place where has the water splash
 ・The place where applies the hard shock
 ・-20℃ or less, 60℃ or more, 70%RH or more
 ・The place where has the condensation
 ・The place where is exposed to direct sunlight

SK-8402 取扱説明書（英文）_P8

8

FEATURES

●Deterioration level of O2 sensor can be checked
easily by bar-graph.

●O2 sensor signal can be measured directly without
changing the present exhaust system.

●Simulated sensor signal output is possible that is
useful for checking wiring error or ECU control
with a combination of scanning tool.

●Rich, Lean, Average voltages and Cycle are
displayed respectively.

mV

RICH

TEST

Z

APO

GOOD CHECK BAD

mV

RICH

TEST

Z

APO

GOOD CHECK BAD

GOOD

(No problem)

mV

RICH

TEST

Z

APO

Rich voltage

mV

TEST

Z

AVG
APO

Average voltage

mV

TEST

Z

LEAN

APO

Lean voltage

C

TEST

Z

APO

Cycle

CHECK

replacement

recommended

BAD

replacement

required

mV

RICH

TEST

Z

GOOD CHECK BAD

APO

(

)

(

P

O

W

E

R

(

1

S

e

c

<

)

S

(

1

S

ec

<

)

(

T

es

t

)

O

2

S

E

N

S

O

R

C

H

E

C

K

E

R

D

H

T5

T

1

Z

R

I

C

H

L

E

AN

DIS

P

L

AY

T

E

S

T

S

K

-

8

4

0

2

T

E

S

T

S

E

L

G

O

O

D

C

HEC

K

B

A

D

V

R

I

CH

T

E

S

T

Z

S

A

P

O

)

SK-8402 取扱説明書（英文）_P9

9

UNPACKING AND INSPECTION (Check before use)

Confirm if the following items are contained in the package in good condition.
If there are any damages or missing items, ask your local dealer for replacement.

①O2 Sensor Checker…1pce. ②Test Lead (100-65)…1pce. ③Check Harness (911)…1pce.

④Alligator Clip (947)…1pce. ⑤Test Pins: Red & Black (795)

…1pce. each

⑥Carrying case (1030)…1pce.

⑦Batteries (manganese 1.5V R6P, AA)

…2pcs.

⑧Instruction Manual…1pce.

・Use parts numbers that are listed along with the

parts names when ordering them for replacement.

・Use commercially available batteries for replacement.

POWER

(1Sec<)

S

(1Sec<)

(Test)

O2 SENSOR CHECKER

DH

T5

T1

Z

RICH

LEAN

DISPLAY

TEST

SK-8402

TEST SEL

C
mV

AUTO

DH

RICH

TEST

ZT1T5

S

AVG

LEAN

APO

GOOD CHECK BAD

POWER

(1Sec<)

S

(1Sec<)

(Test)

O2 SENSOR CHECKER

DH

T5

T1

Z

RICH

LEAN

DISPLAY

TEST

SK-8402

TEST SEL

C
mV

AUTO

DH

RICH

TEST

ZT1T5

S

AVG

LEAN

APO

GOOD CHECK BAD

SK-8402 取扱説明書（英文）_P10

10

NAME ILLUSTRATION

Input

Terminal

(＋)

Input

Terminal

(−)

LCD

TEST Key

①Press this key for 1 second or more to start the normal test.
②Press this key for 2 seconds or more to finish the normal test.
③Press this key less than 1 second to change the display mode

during the normal test. (this function is available when " "
lights up)

④Press this key to output simulated signal in the simulation test

mode.

DH

SEL Key (SELECT Key)

①In stand-by mode…Press this key less than 1 second to select the

types of O2 sensor.

②In stand-by mode…Press this key for 1 second or more to change

testing mode (normal test or simulation test).

③In simulation test…Press this key less than 1 second to change

RICH test or LEAN test.

④Display Hold
 Press this key less than 1 second during normal test mode to

hold display value on LCD.(" " lights up)

 To Cancel : Press SEL Key for 1 second or more.

DH

POWER Key

①Press this key for 1 second or more

to turn on/turn off the unit.

●O2 Sensor Checker

Power turns off automatically after approx. 20 minutes of the last key operation.

Note : Less than 2μA is consumed even in the power off condition.
To cancel : Turn on the unit holding down SEL Key. ("APO" disappears

from LCD)

Auto Power Off (this function is activated in default setting)

⊿ΣConversion
Input voltage calculation by microprocessor
500 times/second (LCD : 1 time/second in stand-by mode)

a. Numerical Display: LCD 999 count, 13 segment bar graph
b. Units and Symbols: TEST, AUTO, , DH, Z, T1, T5, S, RICH, LEAN, AVG, APO, C, m, V, ▲

within 1 second (in stand-by mode)
Auto range (range-up)
0℃ to 40℃, 80％RH or lower (in non-condensing)

-20℃ to 60℃, 70％RH or lower (in non-condensing)
Add ×0.01/℃ to the accuracy outside 23℃±5℃
"H" display on LCD when 6V or more is input (same display for overflow indication)

"- - -" display on LCD when + side of input terminal is grounded (only in stand-by mode)
"- - -" display on LCD when input is less than threshold (same as grounding indication)

"Err" display on LCD when minus voltage is input between input terminals
Err (error) : Indication of minus voltage input

"OL" blinks on LCD and stop testing when over current is detected during the
simulation test
OL (Over Load) : Warning indication of over current input

SK-8402 取扱説明書（英文）_P11

11

SPECIFICATIONS

1. General Specifications

OPERATING PRINCIPLE
TEST METHOD
SAMPLING RATE

DISPLAY (LCD)

RESPONSE TIME
RANGE SELECTION

OPERATING TEMPERATURE & HUMIDITY

STORAGE TEMPERATURE & HUMIDITY

TEMPERATURE COEFFICIENT

OVERVOLTAGE INDICATION
GROUNDING INDICATION
OPEN-INPUT INDICATION

REVERSE CONNECTION
WARNING

OVER CURRENT PROTECTION

１.

２.

３.

４.

５.

６.

７.

８.

９.

１０.

１１.

１２.

１３.

１４.

SK-8402 取扱説明書（英文）_P12

12

SPECIFICATIONS

sign starts blinking when the battery voltage becomes at approx. 2.5V.
Simulation test should be stopped when it is detected.

sign blinks on LCD at approx. 2.4V or less.

1.5V R6P or LR6(AA) batteries × 2
Hold LCD display by pressing SEL Key (effective in normal test mode)
Power turns off automatically after approx. 20 minutes of the last key operation. (cancelable)
Approx. 2.5V or more and 3.6V or less
10ｍA or less in normal test mode (approx. 2μA or less in power-off mode)
300mVA MAX (in simulation test mode)

Approx.

80 hours (manganese battery)

Approx. 180 hours (alkaline battery)

1.1kV 50Hz sine wave, for 1 minute (between circuit and case)
CE marking approved. (IEC61010-1 CATⅠ 600V class2)

148(H)×83(W)×33(D)mm, approx. 220g

BATTERY WARNING

POWER SUPPLY
DISPLAY HOLD
AUTO POWER OFF
OPERATING POWER SUPPLY VOLTAGE
POWER CONSUMPTION

MAXIMUM MOMENTARY POWER CONSUMPTION

CONTINUOUS OPERATING TIME
(in normal test mode)

DIELECTRIC STRENGTH
SAFETY LEVEL

DIMENSION & WEIGHT
(accessories are not included)

１５.

１６.

１７.

１８.

１９.

２０.

２１.

２２.

２３.

２４.

２５.

※Product specifications and appearance are

subject to change without notice.