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4. SPECIFICATION
AC VOLTAGE
Range
Accuracy
2V
±0.8% of reading ±5 digits
20V
±0.8% of reading ±5 digits
200V
±0.8% of reading ±5 digits
600V
±1.2% of reading ±4 digits
Input impedance: 10MΩ for all ranges.
Frequency range: 40Hz to 1kHz
overload Protection: 220V rms ac for 200mV range and
600V dc or ac for other ranges.
Indication: Average (rms of sine wave).
DC VOLTAGE
Range
Accuracy
200mV
±0.8% of reading ±4 digits
2V
±0.8% of reading ±4 digits
20V
±0.8% of reading ±4 digits
200V
±0.8% of reading ±4 digits
600V
±1.2% of reading ±4 digits
Input impedance: 10MΩ for all ranges. overload
Protection: 600V dc or peak ac on all ranges.
overload Protection:200V rms ac for 200mV range and
600V dc or ac for other ranges.
AUDIBLE CONTINUITY TEST
Range
Description
Buzzer sounds if
resistance is less than 30 ohms
open Circuit Voltage approximately 2.8V
5. MAINTENANCE
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.
5.1.
Changing a fuse.The fuses are located on the back of the circuit board. To gain access to the fuses, remove the protective rubber boot and
the two screws from the rear of the multimeter. Lift off the rear cover, replace the appropriate fuse and re-assemble in reverse order.
WARNING! ALWAYS replace a fuse with one of the correct rating.
Fuse 1: 500mA/250V
Fuse 2: 10A/250V
5.2.
If the battery sign
5.1 to remove the rear cover, replace the battery (9V PP3) and re-assemble in reverse order.
5.3.
Clean the multimeter's casing using a 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.
recycle unwanted materials instead of disposing of them as waste. All tools, accessories and packaging should be sorted,
taken to a recycle centre and disposed of in a manner which is compatible with the environment.
When the product is no longer required, it must be disposed of in an environmentally protective way.
1.
2.
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 phone 01284 757500.
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 will be required for any claim.
INFORMATION: For a copy of our latest catalogue and promotions call us on 01284 757525 and leave your full name and address, including postcode.
AC CURRENT
Resolution
Range
1mV
2mA
10mV
20mA
100mV
200mA
1V
10A
overload protection: Fuse 1: 500mA/250V
Indication: Average (rms of sine wave).
Maximum Input Current: Fuse 2: 10A/250V (10A
up to 15 seconds).
Measuring Voltage Drop: 200mV.
Frequency range: 40Hz to 1kHz .
DC CURRENT
Resolution
Range
100 µ V
2mA
1mV
20mA
10mV
200mA
100mV
10A
1V
overload protection: Fuse 1: 500mA/250V
Maximum Input Current: Fuse 2: 10A/250V (10A
up to 15 seconds).
Measuring Voltage Drop: 200mV.
TRANSISTOR hFE TEST (External test socket)
Range
hFE
Displays approximate
hFE value (1-1000) of
transistor.
appears on the LCD display, it indicates that the battery must be replaced. repeat the steps detailed in section
See Section 5.2.
remove and dispose of according to local authority guidelines.
Sole UK Distributor, Sealey Group,
Kempson Way, Suffolk Business Park,
Bury St. Edmunds, Suffolk,
IP32 7Ar
Accuracy
Resolution
±1.2% of reading ±3 digits
1µA
±2.0% of reading ±3 digits
10µA
±2.0% of reading ±3 digits
100µA
10mA
±3.0% of reading ±7 digits
Accuracy
Resolution
±0.8% of reading ±4 digits
±0.8% of reading ±4 digits
10µA
±1.2% of reading ±5 digits
100µA
10mA
±2.0% of reading ±5 digits
Description
Test Condition
Base current
approximately 10µA .
VCE approximately
2.8V.
Environmental Protection.
Battery Removal.
Original Language Version
RESISTANCE
Range
Accuracy
200Ω
±1.0% of reading ±8 digits
2kΩ
±1.2% of reading ±8 digits
20kΩ
±1.2% of reading ±8 digits
200kΩ
±1.2% of reading ±8 digits
2MΩ
±1.2% of reading ±8 digits
20MΩ
±1.2% of reading ±8 digits
Maximum open circuit voltage less than 750mV.
overload protection: 220V dc/ac rms on all ranges.
BATTERY TEST
Range
1µA
1.5V
±0.8% of reading ±2 digits
9.0V
±0.8% of reading ±2 digits
DIODE TEST
Range
Description
Displays approximate
forward Voltage of
(2k)
Diode
01284 757500
Web
01284 703534
email
Resolution
0.1Ω
1Ω
10Ω
100Ω
1kΩ
10kΩ
Accuracy
Current
60mA
12mA
Test Condition
Forward DC current
approximately 1mA.
reversed DC voltage
approximately 2.8V
www.sealey.co.uk
sales@sealey.co.uk
MM24
Issue no: 2 - 02/07/10
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