Sealey TM101 User manual

INSTRUCTIONS FOR
PROFESSIONAL DIGITAL MULTIMETER NCVD
7 FUNCTION
MODEL NO: TM101
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 multimeter, please observe all normal safety rules concerning:
Protection against the dangers of electrical 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 electrical ratings. Failure to do so will invalidate the warranty.
DO NOT use leads if damaged or if the wires are bared in any way.
1.2. GENERAL SAFETY INSTRUCTIONS
9Familiarise yourself with the application and limitations of the multimeter as well as the potential hazards.
IF IN ANY DOUBT CONSULT A QUALIFIED ELECTRICIAN.
9USE EXTREME CAUTION when working with high voltages.
9When the meter is connected to a circuit, do not touch unused meter terminals.
9When the magnitude of the value to be measured is unknown, set the range selector to the highest value available.
9Before commencing testing, follow instructions below and select the correct input sockets, function and range on the multimeter.
9Before rotating the rotary switch to change functions, disconnect the test leads from the circuit under test.
9Take care when working with voltages above 35V DC or 25V AC rms. These voltages are considered a shock hazard.
Keep fingers behind the probe barriers whilst measuring.
8DO NOT test voltages above 600V - the circuitry of the multimeter may be destroyed.
WARNING! NEVER connect the multimeter to a voltage source / live circuit when the rotary switch is set to any other function apart
from Voltage testing.
WARNING! NEVER perform resistance, transistor, diode or continuity measurements on live circuits.
ALWAYSdischargeltercapacitorsinpowersuppliesanddisconnectthepowerwhenmakingresistanceordiodetests.
WARNING! Voltagechecksonelectricaloutletscanbedifcultandmisleadingbecauseoftheuncertaintyofconnectiontothe
recessed electrical contacts. Other means should be used to ensure that the terminals are not “live”.
8DO NOT use the multimeter in a potentially explosive atmosphere.
8DO NOT operate the meter unless the back cover and the battery and fuse doors are in place and fastened securely.
9If any abnormal readings are observed, the multimeter must be checked by an authorised technician.
9When not in use, store the multimeter carefully in a safe, dry, childproof location out of direct sunlight.Storage temperature range: -20°C
to 60°C.
9ALWAYS turn off the power and disconnect the test leads before opening the covers to replace the fuse or battery.
9Keep product surfaces clean and dry.
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.
The warnings, cautions and instructions referred to in this manual cannot cover all possible conditions and situations that may occur.
It must be understood that common sense and caution are factors which cannot be built into this product, but must be applied by the
operator.
1.3. SAFETY SYMBOLS
This symbol adjacent to another symbol, terminal or operating device indicates that the operator must refer
to an explanation in the Operating Instructions to avoid personal injury or damage to the meter.
This WARNING symbol indicates a potentially hazardous situation, which if not avoided, could result in death or serious injury.
This CAUTION symbol indicates a potentially hazardous situation, which if not avoided, may result in
damage to the product.
Thissymbol,adjacenttooneormoreterminalsidentiesthemasbeingassociatedwithrangesthatmay,innormaluse,besub
jected to particularly hazardous voltages. For maximum safety, the meter and its test leads should not be handled when these
terminals are energized.
TM101 | Issue 3 12/10/16
Original Language Version
© Jack Sealey Limited
Refer to
instructions
Electrical
shock
hazard
WARNING
CAUTION

This symbol indicates that a device is protected throughout by double insulation or reinforced insulation.
WARNING! NEVERapplyvoltageorcurrenttothemultimeterthatexceedsthespeciedmaximumasshownbelow:
Input Limits
Function Maximum Input
VAC 600V DC/AC
VDC or V AC 600V DC/AC,200V rms on 200mV range
mA DC 200mA 250V fast acting fuse
ADC 10A 250V fast acting fuse (30 seconds max every 15 min.
Resistance, Continuity 250V rms for 15sec max
1.4. BATTERY INSTALLATION
WARNING! To avoid electric shock, disconnect the test leads from any source of voltage
before removing the battery cover.
Disconnect the test leads from the meter.
Open the battery cover by loosening the two screws using a Phillips head screwdriver.
Remove old battery (if applicable) and insert the new battery into battery holder, observing
the correct polarity. Fit the battery cover back in place. Secure it with the screws.
WARNING! To avoid electric shock, do not operate the meter until the battery cover is in
place and fastened securely.
NOTE! If your meter does not work properly, check the fuses and battery to make sure that
they are still good and that they are properly inserted.
2. INTRODUCTION
High precision multimeter. Conforms with EN61010-1 CATIII 600V safety requirements for
electrical equipment for measurement,
control, and laboratory use. Features Non-Contact AC voltage detection function.
Double moulded housing with soft grip case and large display for ease of use. The housing
has practical storage for probes and lead and has an integral upright stand for use on the
workbench. Measures:
•ACandDCVoltage
•DCCurrent
•Resistance
•DiodeTest
•ContinuityBuzzer
•NonContactVoltageDetection(NCVD)
1. LCD Display
2. Function Switch
3. 10A Jack
4. COM Jack
5. Positive Jack
6. Non Contact Voltage (NCV) Warning Light
SYMBOLS AND ANNUNCIATORS
•))) ContinuityTest
Diode Test
µ Micro (Amps)
m Milli (Volts, Amps)
k Kilo (Ohms)
Ω Ohms
VDC Volts Direct Current
VAC Volts Alternating Current
ADC Amps Direct Current
BAT Battery Test
TM101 | Issue 3 12/10/16
Original Language Version
© Jack Sealey Limited
REMOVE SCREWS
TO ACCESS
BATTERY AND
FUSES
1
6
2
3
4
5

TM101 | Issue 3 12/10/16
Original Language Version
© Jack Sealey Limited
3. SPECIFICATION
Function Range Resolution Accuracy
DC Voltage
200mV 0.1mV
±(0.5% reading + 2 digits)2000mV 1mV
20V 0.01V
200V 0.1V ±(0.8% reading + 2 digits)
600V 1V
AC Voltage
(V AC)
200V 0.1V ±(1.2% reading + 10 digits) (50/60Hz)
600V 1V
DC current
(A DC)
2000µA 1µA ±(1.0% reading + 2 digits)
20mA 10µA
200mA 100µA ±(1.2% reading + 2 digits)
10A 10mA ±(2.0% reading + 2 digits)
Resistance
200Ω 0.1Ω
±(0.8% reading + 2 digits)
2000Ω 1Ω
20KΩ 0.01Ω
200KΩ 0.1KΩ
2000KΩ 1KΩ ±(1.0% reading + 2 digits)
Battery test 9V 10mV ±(1.0% reading + 2 digits)
1.5V 10mV
NOTE!Accuracyspecicationsconsistoftwoelements:
(% reading) – This is the accuracy of the measurement circuit.
(+ digits) – This is the accuracy of the analog to digital converter.
NOTE! Accuracy is stated at 65°F to 83°F (18°C to 28°C) and less than 75% Relative Humidity.
Diode Test:.............................Test current of 1mA maximum, open circuit voltage 2.8V DC typical.
ContinuityCheck:...................Audiblesignalwillsoundiftheresistanceislessthanapproximately30Ω.
Battery Test Current:..............9V (6mA); 1.5V (100mA).
InputImpedance:...................>1MΩ.
ACV Bandwidth:.....................45Hz to 450Hz.
DCA Voltage Drop:.................200mV.
Display:..................................3 ½ digit, 2000 count LCD, 0.5” digits.
Overrange Indication:.............“I” is displayed.
Polarity:..................................Automatic (no indication for positive polarity); Minus (-) sign for negative polarity.
Measurement Rate:................2 times per second, nominal.
Low Battery Indication:...........“BAT” is displayed if battery voltage drops below operating voltage.
Battery:.................................. 9 volt (PP9 type).
Fuses:....................................mA, µA ranges; 0.2A/250V fast blow. A Range: 10A/250V fast blow.
Operating Temperature:.........32°F to 122°F (0°C to 50°C).
Storage Temperature:.............-4°F to 140°F (-20°C to 60°C).
Relative Humidity:..................<70% operating, <80% storage.
Operating Altitude:................. 7000ft. (2000m) maximum.
Weight:.................................. 260g.
Size:.......................................121.5mm x 60.6mm x 40mm.
Safety: For indoor use and in accordance with Overvoltage Category II, Pollution Degree 2. Category II includes local level,
appliance, portable equipment, etc., with transient overvoltages less than Overvoltage Category III.
4. OPERATION
WARNING! Risk of electrocution. High-voltage circuits, both AC and DC, are very dangerous and should be measured with great care.
ALWAYS turn the function switch to the “OFF” position when the meter is not in use.
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 voltage ranges, with the test leads not connected to a device, the display may show a random reaing.
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. DC VOLTAGE MEASUREMENTS
CAUTION: Do not measure DC voltages if a motor on the circuit is being switched ON or OFF. Large voltage surges may occur that can
damage the meter.
4.1.1. Set the function switch to the highest V DC position.
4.1.2. Insert the black test lead banana plug into the negative (COM) jack. Insert the red test lead banana plug into the positive (V) jack.
4.1.3. Touch the black test probe tip to the negative side of the circuit. Touch the red test probe tip to the positive side of the circuit.
4.1.4. Read the voltage in the display. Reset the function switch to successively lower V DC positions to obtain a higher resolution reading.
The display will indicate the proper decimal point and value. If the polarity is reversed, the display will show (-) minus before the value.

TM101 | Issue 3 12/10/16
Original Language Version
© Jack Sealey Limited
4.2. AC VOLTAGE MEASUREMENTS
WARNING! Risk of Electrocution. The probe tips may not be long enough to contact the live parts inside some 240V outlets for
appliances because the contacts are recessed deep in the outlets.
As a result, the reading may show 0 volts when the outlet actually has voltage on it. Make sure the probe tips are touching the metal
contacts inside the outlet before assuming that no voltage is present.
CAUTION: Do not measure AC voltages if a motor on the circuit is being switched ON or OFF. Large voltage surges may occur that can
damage the meter.
4.2.1. Set the function switch to the highest V AC position.
4.2.2. Insert the black test lead banana plug into the negative (COM) jack. Insert red test lead banana plug into the positive (V) jack.
4.2.3. Touch the black test probe tip to the negative side of the circuit. Touch the red test probe tip to the positive side of the circuit.
4.2.4. Read the voltage in the display. Reset the function switch to successively lower V AC positions to obtain a higher resolution reading.
The display will indicate the proper decimal point and value
4.3. DC CURRENT MEASUREMENTS
CAUTION: Do not make current measurements on the 10A scale for longer than 30 seconds. Exceeding 30 seconds may cause damage
to the meter and/or the test leads.
4.3.1. Insert the black test lead banana plug into the negative (COM) jack.
4.3.2. For current measurements up to 200mA DC, set the function switch to the highest DC mA position and insert the red test lead banana
plug into the (mA) jack.
4.3.3. For current measurements up to 10A DC, set the function switch to the 10A range and insert the red test lead banana plug into the (10A)
jack.
4.3.4. Remove power from the circuit under test, then open up the circuit at the point where you wish to measure current.
4.3.5. Connect test leads in series with the circuit under measurement.
4.3.6. Apply power to the circuit.
4.3.7. Read the current in the display. For mA DC measurements, reset the function switch to successively lower mA DC positions to obtain a
higher resolution reading. The display will indicate the proper decimal point and value.
4.4. RESISTANCE MEASUREMENTS
WARNING! To avoid electric shock, disconnect power to the unit under test and discharge all capacitors before taking any resistance
measurements. Remove the batteries and unplug the line cords.
4.4.1. SetthefunctionswitchtothehighestΩposition.
4.4.2. Insert the black test lead banana plug into the negative (COM) jack. Insert the red test lead banana plug into the positive Ωjack.
4.4.3. Touch the test probe tips across the circuit or component under test. It is best to disconnect one side of the component under test so
the rest of the circuit will not interfere with the resistance reading.
4.4.4. ReadtheresistanceinthedisplayandthensetthefunctionswitchtothelowestΩpositionthatisgreaterthantheactualorany
anticipated resistance. The display will indicate the proper decimal point and value.
4.5. CONTINUITY CHECK
WARNING! To avoid electric shock, never measure continuity on circuits or wires that have voltage on them.
4.5.1. Setthefunctionswitchtothe/•)))position.
4.5.2. Inserttheblackleadbananaplugintothenegative(COM)jack.Inserttheredtestleadbananaplugintothepositive(Ω)jack.
4.5.3. Touch the test probe tips to the circuit or wire you wish to check.
4.5.4. Iftheresistanceislessthanapproximately30Ω,theaudiblesignalwillsound.Ifthecircuitisopen,thedisplaywillindicate“I”.
4.6. DIODE TEST
4.6.1. Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive diode jack.
4.6.2. Turntherotaryswitchtothe/•)))position.
4.6.3. Touch the test probes to the diode under test. Forward voltage will indicate 400 to 700mV. Reverse voltage will indicate “I”.
Shorted devices will indicate near 0mV. Shorted devices will indicate near 0mV and an open device will indicate “I” in both polarities.
4.7. BATTERY TEST
4.7.1. Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive V jack.
4.7.2. Select the 1.5V or 9V BAT position using the rotary switch.
4.7.3. Connect the red test lead to the positive side of the 1.5V or 9V battery and the black test lead to the negative side of the 1.5V or 9V
battery.
4.7.4. Read the voltage in the display.
Good Weak Bad
9V Battery >8.2V 7.2 to 8.2V <7.2V
1.5V Battery >1.35V 1.22 to 1.35V <1.22V
4.8. NON CONTACT VOLTAGE
4.8.1. The NCV function works on any function switch position.
4.8.2. Test the detector on a known live circuit before use. Direct the top of the
multimeter very close to the voltage source.
4.8.3. If voltage is present, the red warning light will illuminate and the
multimeter will buzz.
NCV
Warning
Light

5. MAINTENANCE
5.1. REPLACING THE BATTERY
WARNING! To avoid electric shock, disconnect the test leads from any source of voltage before removing the battery cover.
5.1.1. When the battery becomes exhausted or drop below the operating voltage, “BAT” will appear in the right-hand side of the
LCD display. The battery should be replaced.
5.1.2. Follow instructions for installing battery. See the Battery Installation section of this manual (1.4.).
5.1.3. Dispose of the old battery properly - see recycling statements at the end of this manual.
WARNING! To avoid electric shock, do not operate the meter until the battery cover is in place and fastened securely.
5.2. REPLACING THE FUSES
WARNING! To avoid electric shock, disconnect the test leads from any source of voltage before removing the fuse cover.
5.2.1. Disconnect the test leads from the meter and any item under test.
5.2.2. Open the fuse cover by loosening the screw on the cover using a Phillips head screwdriver.
5.2.3. Remove the old fuse from its holder by gently pulling it out.
5.2.4. Install a new fuse into the holder.
5.2.5. Always use a fuse of the proper size and value (0.5A/250V fast blow for the 200mA range, 10A/250V fast blow for the 10A range).
5.2.6. Fit the fuse cover back in place. Insert the screw and tighten it securely.
WARNING! To avoid electric shock, do not operate the meter until the fuse cover is in place and fastened securely.
WARNING! Before attempting to open the case, ensure that the test leads have been disconnected from the multimeter and that it is
switched off to avoid electric shock hazard.
5.3. Clean the multimeter’s casing using a very slightly dampened cloth and mild detergent - do not use any abrasives or solvents. Clean
the inside of each terminal using a swab soaked in isopropyl alcohol, use a new swab to apply a light coat of machine oil to each
terminal.
5.4. If the multimeter is to be stored for a long period of time, remove the battery first to avoid any damage.
NOTE: It is our policy to continually improve products and as such we reserve the right to alter data, specications 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 will be required for any claim.
Environmental 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 off any fluids (if applicable)
into approved containers and dispose of the product and the 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
See Section 1.4
Under the Waste Batteries and Accumulators Regulations 2009, Jack Sealey Ltd are required to inform potential
purchasersofproductscontainingbatteries(asdenedwithintheseregulations),thattheyareregisteredwihValpak’s
registered compliance scheme. Jack Sealey Ltd’s Batteries Producer Registration Number (BPRN) is BPRN00705.
Parts support is available for this product. To obtain a parts listing and/or diagram,
please log on to www.sealey.co.uk, email sales@sealey.co.uk or telephone 01284 757500.
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