Sealey TA202 User manual

DIGITAL AUTOMOTIVE ANALYSER
14 FUNCTION WITH INDUCTIVE COUPLER
MODEL NO: TA202
Thank you for purchasing a Sealey product. Manufactured to a high standard, this product will, if used according to these
instructions, and properly maintained, give you years of trouble free performance.
IMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS & CAUTIONS. USE
THE PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE DAMAGE AND/OR
PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. KEEP THESE INSTRUCTIONS SAFE FOR FUTURE USE.
1. SAFETY
1.1. PERSONAL PRECAUTIONS
9When using this meter, please observe all normal safety rules concerning:
Protection against the dangers of electric current.
Protection of the meter against misuse.
9Full compliance with safety standards can only be guaranteed if used with the test leads supplied. If necessary, they must be replaced
with genuine Sealey leads with the same electronic ratings. Failure to do so will invalidate the warranty.
8DO NOT use leads if damaged or if the wire is bared in any way.
1.2. GENERAL SAFETY INSTRUCTIONS
9Familiarise yourself with the applications, limitations and hazards of the meter. IF IN ANY DOUBT CONSULT A QUALIFIED
ELECTRICIAN.
9When the meter is linked to a measurement circuit, DO NOT touch unused meter terminals.
9When the scale of the value to be measured is unknown set the selector to the highest range available.
9Before rotating the range selector to change functions, disconnect test leads from the circuit under test.
WARNING! Never perform resistance measurements on live circuits.
9Always be careful when working with voltages above 60Vdc or 30Vac rms. Keep your fingers behind the probe guards while measuring.
9When not in use, store the meter carefully in a safe, dry, childproof location. Storage temperature range -10°C to 50°C.
9Never apply voltage or current to the meter that exceeds the specified maximum.
9The user shall ensure that test probes are correctly selected in order to prevent danger. Probes shall be selected to ensure
that adequate barriers guard against inadvertent hand contact with live conductors under test and that probes have minimal exposed
probe tips. Where there is a risk of the probe tip short circuiting with other live conductors under test, it is recommended that the
exposed tip length shall not exceed 4mm.
2. INTRODUCTION
Extra large, hi-contrast LCD display with 36mm high digital read-out and back light. Durable case and integral stand suitable for the toughest
workshop conditions. Features millisecond pulse-width function for accurate measurement of fuel injection systems. Includes auto-ranging,
data-hold and auto-power-off. Supplied with inductive coupler, test probes, thermocouple and carry-case.
2.1. Symbols and descriptions
.......................................................................... Continuity
Bat ...................................................................... Low Battery
............................................................................Diode
DATA HOLD ........................................................... Data Hold
Auto ................................................................. Auto Ranging
AC............................................................ Alternating Current
DC...................................................Direct Current or Voltage
Function Maximum Input
V AC or V DC 700V AC, 1000V DC
mA AC/DC 400mA AC/DC
A AC/DC 20A AC/DC (30 secs
max every 15 minutes)
Frequency
Resistance
Duty Cycle
Diode Test
Continuity
Temperature
RPM
DWELL
Pulse Width
250V AC/
DC
TA202 Issue 5 (-6) 20/09/18
Original Language Version
© Jack Sealey Limited
Refer to
instructions
Electrical shock
hazard
g.1 g.2
Warning!
Layout: (Refer to fig.1.)
1. Large LCD display
2. Rotary switch
3. COM, negative input jack
4. Positive (+) input for AC/DC Voltage, Current, Hz, %duty, Cycle, Ohms, Diode,
Continuity, Capacitance, Temperature (°C or °F), RPM, Dwell and Pulse Width.
5. Positive (+) input jack for AC/DC µA/mA.
6. Positive (+) 20A input jack for 20A AC/DC measurements.
7. Data Hold and backlight push button.
8. Relative push button.
9. RPM, DWELL, Hz%, CYL, mS ± button.
10. Mode push button.

3. SPECIFICATION
Overvoltage Category: ..................................................................................................................... CAT11 1000V.
Display:......................................................................................4000 counts LCD display with function indication.
Polarity: .................................................................................................Automatic, (-) negative polarity indication.
Overrange: .............................................................................................................................“OL” mark indication.
Low Battery Indication: ............The “BAT” is displayed when the battery voltage drops below the operating level.
Measurement Rate:.....................................................................................................2 times per second nominal
Auto Power Off: .......................................... Meter automatically shuts down after approx 30 minutes of inactivity.
Operating environment:...................................................... 0°C to 50°C (32° to 122°F) at < 70%relative humidity.
Storage Temperature:....................................................... -20° to 60°C (-4°F to 140°F) at <80% relative humidity.
For Inside Use:
Max Working Height: ................................................................................................................................2000mtr.
Power: ....................................................................................................................................One 9V battery PP3.
Dimensions:...............................................................................................................195 (H) x 92 (W) x36 (D) mm
Approx Weight:................................................................................................................................................360g
Accuracy is given at 18°C to 28°C (65°F to 83°F) less than 70% relative humidity.
Range Resolution Accuracy
400.0mV 0.1mV ± 0.5% of reading ± 2 digits
4.000V 1mV
40.00V 10mV ±1.5% of reading ± 2 digits
400.0V 100mV
1000V 1V ± 1.8% of reading ± 2 digits
Range Resolution Accuracy
400.0mV 0.1mV ± 1.5% of reading ± 30 digits
4.000V 1mV ± 1.0% of reading ± 3 digits
40.00V 10mV ± 1.5% of reading ± 3 digits
400.0V 100mV
700V 1V ± 2.0% of reading ± 2 digits
Range Resolution Accuracy
400.0uA 0.1uA ± 1.0% of reading ± 3 digits
4000uA 1uA
40.00mA 10uA ± 1.5% of reading ± 3 digits
400.0mA 100uA
4A 1mA ± 2.5% of reading ± 5 digits
20A 10mA
Range Resolution Accuracy
400.0Ω 0.1Ω ± 1.2% of reading ± 4 digits
4.000kΩ 1Ω ± 1.0% of reading ± 2 digits
40.00kΩ 10Ω ± 1.2% of reading ± 2 digits
400.0kΩ 100Ω
4.000MΩ 1kΩ
40.00MΩ 10kΩ ± 2.0% of reading ± 3 digits
Range Resolution Accuracy
400.0uA 0.1uA ± 1.5% of reading ± 5 digits
4000uA 1uA
40.00mA 10uA
400.0mA 100uA
4A 1mA ± 3.0% of reading ± 7 digits
20A 10mA
DC Voltage (Auto Ranging)
AC Voltage (Auto Ranging except 400mV)
Input Impedance: 10MΩ.
Maximum Input 700Vac rms or 1000Vdc.
DC Current (Auto Ranging for uA and mA)
Input Impedance: 10MΩ.
Frequency Range: 50 to 400Hz.
Maximum Input: 700Vac rms or 100Vdc.
Overload Protection: 0.5A/250V and 20A/250V
Fuse:
Maximum Input:400mAac rms or 400mAdc on uA/mA ranges
20A ac or dc rms on 10A range.
AC Current (Auto Ranging for uA and mA)
Overload Protection: 0.5A/250V and 20A/250V
Fuse:
Frequency Range:50 to 400Hz
Maximum Input: 40mA ac rms or 400mA dc on uA/m7
20A ac or dc rms on 20A range.
Resistance (Auto Ranging)
Range Resolution Accuracy
40.00nF 10pF ± 5.0% of reading ± 7 digits
400.0nF 0.1nF
4.000uF 1nF ± 3.0% of reading ± 5 digits
40.00uF 10nF
100.0uF 0.1uF ± 5.0% of reading ± 5 digits
Capacitance (Auto Ranging)
Input Protection: 250Vac rms or 250Vdc.
Input Protection: 250Vac rms or 250Vdc.
Range Resolution Accuracy
5Hz 0.001Hz
50Hz 0.01Hz ± 1.5% of reading ± 5 digits
500Hz 0.1Hz
5kHz 1Hz
50kHz 10Hz ± 1.2% of reading ± 3 digits
500kHz 100Hz
10MHz 1kHz ± 1.5% of reading ± 4 digits
Frequency (Auto Ranging)
Sensitivity: <0.5V RMS while <1MHz
Sensitivity: >3V rms while >1MHz
Overload Protection: 250Vac rms or dc.
Range Resolution Accuracy
0.1%~99.9% 0.1% ± 1.2% of reading ± 2 digits
Duty Cycle (Auto Ranging)
Pulse Width: >100us, <100ms
Frequency Width: 5Hz - 150kHz
Overload Protection: 250Vac rms or dc.
Range Resolution Accuracy
1.0~10.0ms 0.1ms ± 3% of reading ± 10 digits
Pulse Width
Overload Protection: 250Vac rms or dc.
Range Resolution Accuracy
-20°C~+760°C 1°C ± 3.0% of reading ± 3 digits
-4°F~+1400°F 1°F (Meter only, probe accuracy
not included).
Range Resolution Accuracy
RPM 4 600~4000RPM 1RPM
600~1200RPM 10RPM
(X 10PM) ±2% of rdg ± 4 digits
RPM 2 300~4000 RPM 1RPM
300~600RPM 10RPM
(x 10RPM)
Temperature
Sensor: Type K Thermocouple
Range Resolution Accuracy
0.3mA 1mV ± 10% of reading ±5 digits
typical
Diode test
Open Circuit Voltage: 1.5Vdc typical
Overload Protection: 250Vac rms or dc.
Cylinder Range Resolution Accuracy
4CYL 0~90.0° 0.1° ± 2.0% of reading ± 4 digits
5CYL 0~72.0°
6CYL 0~60.0°
8CYL 0~45.0°
Dwell Angle
Overload Protection: 250Vac rms or dc.
Effect Reading: >600RPM
RPM (Tach)
Audible Continuity
Audible threshold: Less than 150Ω
Test Current: <0.3mA
Overload Protection: 250Vac rms or dc.
Original Language Version
© Jack Sealey Limited TA202 Issue 5 (-6) 20/09/18

4. OPERATION
WARNING! Ensure that you read, understand and apply the safety and operational instructions before connecting the meter. Only
when you are sure that you understand the procedures is it safe to proceed with testing.
WARNING! Risk of electrocution. High voltage circuits, both AC and DC are very dangerous and should be measured with great care.
Operating temperature range 0°C to 40°C.
Remember to turn on meter before use and to turn it off when measurement is completed.
Note:IF “OL” appears in the display during a measurement, the value exceeds the range you have selected. Change to a higher
range.
Note:On some low AC and DC ranges, with the test leads not connected to a device, the reading may show a random uctuating
reading. This is normal and is caused by the high input sensitivity. The reading will stabilise and give a proper measurement when
connected to a circuit.
4.1.  ModeButton(g.1.10)
4.1.1. To select AC/DC voltages, AC/DC current, Resistance, Diode, Continuity and Capacitance check.
4.2. Stroke Button 4/2 (DIS) Hz, %, ms CYL range button. (g.1.9.).
4.2.1. To select stroke 4/2 (DIS) Hz, %, ms CYL range.
4.3.  DataHold,BacklightButton(g.1.7.)
4.3.1. The data hold function allows the meter to freeze a measurement for later reference.
4.3.2. Press the data hold button to freeze the reading in the display. The indicator “hold” will appear in the display.
4.3.3. Press the data hold button to return to normal operation.
4.3.4. Press and hold the data button for two seconds to to switch on the display backlight.
4.3.5. Press and hold the data button again for two seconds to turn off the backlight.
4.4. Relative Button (fig.1.8.)
4.4.1. The relative measurement feature allows you to make measurements relative to a stored reference value. A reference voltage, current
etc. can be stored and measurements made in comparison to that value. The displayed value is the difference between the reference
value and the measured value.
4.4.2. Perform any measurement as described in the operating instructions.
4.4.3. Press the relative button to store the reading in the display and the “REL” indicator will appear in the display.
4.4.4. The display will now indicate the difference between the stored value and the measured value.
4.4.5. Press the relative button to return to normal operation.
4.5. AC or DC Voltage Measurements
4.5.1. Insert the black test lead into the negative “COM” jack and the red test lead into the positive “V” jack.
4.5.2. Turn the rotary switch to the VDC/AC position.
4.5.3. Press the “MODE” button to select ac or dc voltage.
4.5.4. Touch the test probes to the circuit under test and read the voltage display.
Note: Pressing the Hz button (fig1.9.) while in the voltage function will switch the display to frequency or duty cycle.
4.6. AC or DC Current Measurements
WARNING! DO NOT make current measurements on the 20A scale for longer than 30 seconds in every 15 minutes. Exceeding 30
seconds may cause damage to the meter and test leads.
4.6.1. Insert the black test lead into the into the negative “COM” jack and the red test lead into the:
a) Positive uA/mA jack for currents to 400mA (fig.1.5.)
b) Positive 20A jack for currents to 20A (fig.1.6.)
4.6.2. Turn the rotary switch to the uA, mA or A position.
4.6.3. Press the mode button to select AC or DC current.
4.6.4. Touch the test probes in series with the circuit under test and read the current on the display.
4.7. Resistance, Diode, Continuity or Capacitance Measurements
WARNING! To avoid electric shock, disconnect power to unit under test and discharge all capacitors before taking any resistance or
capacitance measurements.
4.7.1. Insert the black test lead into the negative “COM” jack and the red test lead into the positive Ω CAP jack.
4.7.2. Turn the rotary switch to the Ω CAP position.
4.7.3. Press the Mode button (fig. 1.1.) to select Ω or or or CAP.
4.7.4. Connect the test probes to the two ends of the Resistance, Diode, Continuity, Capacitance or circuit to be measured.
4.7.5. Read the measured value from the display.
4.7.6. When on continuity range a beeping will be heard if the resistance is lower than 150Ω.
4.7.7. When measuring the forward voltage across a good Diode will indicate 0.4V or 0.7V will be indicated and the reverse voltage will
indicate “OL” (same as on open condition). For a short circuit diode, a value of 0mV will be displayed.
WARNING! When checking in-circuit capacitance, be sure to disconnect the power supply from the circuit and that the capacitors are
fully discharged. The range control mode in capacitance measurement is auto-ranging.
4.8. Frequency or Duty Cycle measurements
4.8.1. Insert the black test lead into the negative “COM” jack and the red test lead into the positive “Hz” jack.
4.8.2. Turn the rotary switch to the “Hz %DUTY” position.
4.8.3. Press the Hz % button (fig.1.9.) to select Hz or %.
4.8.4. Touch the test probes to the circuit under test and read the frequency or duty cycle on the display.
4.9. Temperature Measurements
4.9.1. Insert the type K thermocouple plug into the negative “COM” jack and the positive jack ensuring the + symbol on the plug is inserted
into the positive + jack and the negative symbol on the plug is inserted into the negative “COM” jack.
4.9.2. Turn the rotary switch to the select °C or °F.
4.9.3. Read the temperature on the display.
4.10. Pulse Width Measurement
4.10.1. Insert the black test lead into the negative “COM” jack and the red test lead into the positive + jack.
4.10.2. Turn the rotary switch to the PULSE WIDTH position.
4.10.3. Connect the black test probe to ground and the red test probe to the signal wire that connects to the component to be measured.
Note: The applied time for most fuel injector is displayed on the negative (-) slope.
Original Language Version
© Jack Sealey Limited TA202 Issue 5 (-6) 20/09/18

4.11. RPM (TACH) Measurements
4.11.1. Select the RPM range with the rotary switch.
4.11.2. Select the X10 RPM range with the rotary switch. Multiply the displayed reading times by 10 to get the actual RPM.
4.11.3. Press STROKE button (fig.1.9.) to select through RPM 4 for 4-stroke or RPM 2 for 2-stroke
4.11.4. Insert the inductive coupler leads into the meter. Black lead into the negative “COM” jack and the red lead into the positive RPM jack
(fig.1.4.).
Connect the inductive coupler to a spark plug HT lead. If no reading is received, unhook the clamp, turn it over and connect again.
Note: Connect the inductive coupler as far away from the distributor and exhaust manifold as possible.
Position the pickup to within six inches of the spark plug or move it to another plug HT lead if no reading or an erratic reading is obtained.
Note: RPM4: For RPM of 4-stroke engines which have 1 ignition on every 4 engine strokes.
RPM2: For RPM of DIS (Distributor-less Ignition System) and 2 -stroke engines which have 1 ignition on every two strokes.
4.12. Dwell Angle Measurement
Dwell angle is the number of degrees through which the distributor cam rotates while the breaker points are closed.
4.12.1. Insert the black test lead into the negative “COM” jack and the red test lead into the positive + jack.
4.12.2. Turn the rotary switch to the corresponding position of 4CYL, 5CYL, 6CYL, 8CYL on the dwell range.
4.12.3. Set number of cylinders with the CYL button (fig.1.9.).
4.12.4. Connect the black test lead to the Ground terminal (-) on the car battery and the red test lead to the contact breaker points or the negative
(-) terminal of the ignition coil.
4.12.5. When the engine is started the Dwell will be displayed.
Note: To reduce the dwell angle reading the points gap must be increased, to increase the dwell angle the points gap must be reduced.
Refer to your owners handbook for detailed procedures for dwell settings and adjustments.
4.13. Other Functions
4.13.1. Your meter is also capable of testing the following automotive sensors.
Oxygen Sensors
Fuel Injectors
Temp Sensors
Position Sensors
Absolute pressure (MAP) and Baro Sensors
Mass Air Flow (MAF) Sensors
4.13.2. For a detailed description and testing procedure for these sensors, please refer to the vehicles hand book.
4.14. Replacing The Battery
WARNING! To avoid electric shock, disconnect the test leads from any source of voltage before removing the battery door.
4.14.1. When the battery become exhausted or drops below the operating voltage, “BAT” will be appear in the right hand side of the display.
Replace the battery.
4.14.2. Disconnect the leads from the meter.
4.14.3. Open the battery door by loosening the screw using a Philips head screw driver.
4.14.4. Remove the old battery and insert the new one, observing the correct polarity.
4.14.5. Replace the battery cover and secure with the two screws.
WARNING! To avoid electric shock, DO NOT operate the meter until the battery cover is secured in place.
4.15. Replacing The Fuses
WARNING! To avoid electric shock, disconnect the test leads from any source of voltage before accessing the fuses.
4.15.1. Disconnect the test leads from any item under test and disconnect them from the meter.
4.15.2. Remove the 5 screws on the rear of the meter and gently pull the two halves of the meter apart.
4.15.3. Remove the old fuse from its holder by gently pulling it out.
4.15.4. Install the new fuse into its holder.
Note: Always use a fuse of the correct size and value.
0.5A/250V fast blow for the 400mA range.
20A/250V fast blow for the 10A range.
4.15.5. Put the two halves of the meter back together and secure with the 5 screws.
WARNING! To avoid electric shock, do not use the meter until it has been fully re-assembled.
5. MAINTENANCE
WARNING! DO NOT attempt to repair or service your meter unless you are qualified to do so and have the relevant calibration,
performance test, and service information. To avoid electrical shock or damage to the meter DO NOT get water inside the case.
5.1. Periodically wipe the case with a damp cloth and mild detergent. DO NOT use solvents.
5.2. Turn the meter off when not in use and remove the battery if stored for a long period of time.
8DO NOT store the meter in a place of high humidity or high temperature
Original Language Version
© Jack Sealey Limited TA202 Issue 5 (-6) 20/09/18

Sealey Group, Kempson Way, Suffolk Business Park, Bury St Edmunds, Suffolk. IP32 7AR
01284 757500 01284 703534 [e-mail] www.sealey.co.uk
ENVIRONMENT PROTECTION
Recycle unwanted materials instead of disposing of them as waste. All tools, accessories and packaging should be sorted, taken to
a recycling centre and disposed of in a manner which is compatible with the environment. When the product becomes completely
unserviceable and requires disposal, drain any fluids (if applicable) into approved containers and dispose of the product and fluids
according to local regulations.
WEEE REGULATIONS
Dispose of this product at the end of its working life in compliance with the EU Directive on Waste Electrical and Electronic Equipment
(WEEE). When the product is no longer required, it must be disposed of in an environmentally protective way. Contact your local solid
waste authority for recycling information.
BATTERY REMOVAL
Under the Waste Batteries and Accumulators Regulations 2009, Jack Sealey Ltd are required to inform potential purchasers of products
containing batteries (as defined within these regulations), that they are registered with Valpak’s registered compliance scheme. Jack
Sealey Ltd Batteries Producer Registration Number (BPRN) is BPRN00705.
Note: It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component parts without prior
notice.
Important: No Liability is accepted for incorrect use of this product.
Warranty: Guarantee is 12 months from purchase date, proof of which is required for any claim.
Original Language Version
© Jack Sealey Limited TA202 Issue 5 (-6) 20/09/18
Parts support is available for this product. Please email [e-mail] or telephone [phone]