Clarke CDM80C Manuale utente
OPERATING INSTRUCTIONS
DL0723
PEN-TYPE DIGITAL MULTIMETER
MODEL NO: CDM80C
PART NO: 4501160
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Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com
INTRODUCTION
Thank you for purchasing this CLARKE product.
This instrument is a professional, portable multimeter with an easy to read LCD
display. It incorporates overload protection, low battery indication, with both
auto-range and manual ranges available.
During use, the instrument automatically shows the value and unit of the
measurement. The meter includes Data Hold and Max. Hold features and
automatic power-off.
Before attempting to use this product, please read this manual thoroughly and
follow the instructions carefully. In doing so you will ensure the safety of yourself
and that of others around you, and you can look forward to your purchase
giving you long and satisfactory service.
GUARANTEE
This product is guaranteed against faulty manufacture for a period of 12
months from the date of purchase. Please keep your receipt which will be
required as proof of purchase.
This guarantee is invalid if the product is found to have been abused or
tampered with in any way, or not used for the purpose for which it was
intended.
Faulty goods should be returned to their place of purchase, no product can
be returned to us without prior permission.
This guarantee does not effect your statutory rights.
ENVIRONMENTAL RECYCLING POLICY
Through purchase of this product, the customer is taking on the
obligation to deal with the WEEE in accordance with the WEEE
regulations in relation to the treatment, recycling & recovery and
environmentally sound disposal of the WEEE.
In effect, this means that this product must not be disposed of with general
household waste. It must be disposed of according to the laws governing
Waste Electrical and Electronic Equipment (WEEE) at a recognised disposal
facility.
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Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com
SAFETY INFORMATION
BEFORE USE
1. When using the meter, the user must observe all normal safety rules
concerning:
• General protection against electric shock
• Protection of the meter against misuse.
2. When the meter is delivered, confirm it has not been damaged in transit.
3. The test leads must be kept in good condition. Before using, check that the
insulation on the test leads has not been damaged or any wire exposed.
4. Use only the test leads supplied to ensure operational safety. If necessary,
they must be replaced with test leads of the same model or class.
DURING USE
1. Do not take measurements that exceed the maximum values for this
meter.
2. Do not touch the metal probes of the test leads when the meter is
connected to the circuit being measured.
3. Do not take voltage measurements if you suspect the value exceeds 600V.
4. If the appropriate value range is unknown, select the highest range on the
scale.
5. Disconnect the test leads from the circuit under test before turning the
rotary function selector.
6. Do not measure the resistance, diode or continuity of live circuits.
7. Do not connect the meter to any voltage source while the rotary selector is
in the Current, Resistance, Diode or Continuity range.
8. Do not use the meter near explosive gases or steam.
9. Stop using the meter if any abnormalities or faults are observed.
10. Do not use the meter unless its battery cover is correctly fastened.
11. Do not store or use the meter in areas exposed to direct sunlight, at high
temperature or with high relative humidity.
WARNING: TAKE CARE WHEN USING THIS METER. IMPROPER USE CAN
RESULT IN ELECTRIC SHOCK OR DAMAGE TO THE METER. TAKE ALL
NORMAL SAFETY PRECAUTIONS AND FOLLOW THE SAFEGUARDS
SUGGESTED IN THIS MANUAL.
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Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com
12. To avoid false readings, replace the batteries as soon as the Low Battery
indicator appears.
13. Before use, verify the meter operation by measuring a known voltage.
14. Never touch exposed wiring, connections or any live circuit while taking
any measurements.
15. Keep your body isolated from ground by using dry clothing, rubber shoes,
rubber mats or any approved insulating material.
SAFETY SYMBOLS
Please read all of the safety and operating instructions carefully before using
this product. The following safety symbols may be found on the product.
General hazard
warning
High voltage danger.
Earth symbol Class II insulation without
earth conductor.
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Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com
FEATURES
COMPONENTS OF THE METER
ITEMS SUPPLIED
•Multi-meter
• Black test lead & probe
• Pair crocodile clip extensions
• 2 x AAA batteries
• 1 x Belt pouch
1 Positive test probe 8 Function Button
2 Probe cover (removable) 9 Max Hold Button
3 LED Indicators 10 Non-contact voltage button
4 Protective Shoulder 11 Panel
5 Rotary Switch 12 LCD Screen
6 Data Hold Button 13 COM jack
7 Range Button
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Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com
BUTTONS AND FUNCTIONS
ADDITIONAL FEATURES
Button Function Description
HOLD Any mode Press to hold the current reading on the display.
Hold the button while turning on the meter to
turn off the auto power feature.
RANGE V Ω mA Switch ranges in manual range. Hold to return
to auto range.
MAX Any mode Press to hold the maximum measured value on
the display.
NCV Any mode Hold for non-contact voltage detection
FUNC V~ Logic
Ω
mA
Switch between AC and DC voltage. Hold
down for Logic level test. Switch between
resistance, diode and continuity modes. Switch
between AC and DC current.
Rotary switch Selects between functions
Test probe For V/Ω/ / measurements
COM Jack Common test lead input
LCD display Shows results of measurements
LED indicator In Logic mode, green indicates low level, red indicates
high level
Probe cover Used when making category III or higher measurements.
Twist to remove if making category II or lower
measurements.
Protection ring Keep hands behind the protective shoulder and away
from the probe tip to avoid injury.
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Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com
SPECIFICATIONS
Model Number CDM80C
Product Dimensions 222 x 44 x 30 mm
Weight (inc batteries) 130g
Test leads length (inc probe) 1000 mm
Fuse protection 400mA/600V
Power 2 x AAA batteries
Maximum display value 1999
Over-range indication “1”
Polarity display “-” for negative polarity
Detects and measures voltages DCV 200m/2/20/200/600 ± 0.7%
ACV 200m, 2,20,200 ± 0.8% 600± 1.0%
Detects and measures resistance Ohm 200 ± 1.0% 2k,20k,200k, 2M ± 1%,
20M ± 1%
Detects and measures current DC: 20mA, 200mA ± 1.5%
AC: 20mA, 200mA ± 2.0%
Operating temperature 0 - 40°C
Storage temperature -10°C to 50°C
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Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com
OPERATION
Before taking the measurement of voltage with the probe, make sure there is
no electronic device connected to the test socket of the instrument.
DC VOLTAGE MEASUREMENT
Input impedance: 10MΩ
Overload protection: 200mV range: 250V DC or AC rms 2 V-600V ranges: 600V
DC or AC rms
Max. input voltage: 600V DC
AC VOLTAGE MEASUREMENT
Input impedance: 10MΩ
Overload protection: 200mV range: 250V DC or AC rms 2V-600V ranges: 600V
DC or AC rms
Frequency range: 40-400Hz
Response: average (rms of sine wave)
Max. input voltage: 600V AC rms
Range Resolution Accuracy
200mV 0.1mV
± 0.7% of reading, ± 2 digits
2V 0.001V
20V 0.01V
200V 0.1V
600V 1V
Range Resolution Accuracy
200mV 0.1mV
± 0.8% of reading, ± 3 digits
2V 0.001V
20V 0.01V
200V 0.1V
600V 1V ± 1.0% of reading, ± 3 digits
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Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com
RESISTANCE
Open circuit voltage: 250mV
Overload protection: 250V DC or AC rms
CONTINUITY
Open circuit voltage: approximately 500mV
Overload protection; 250V or AC rms
DIODE TEST
Forward DC current: approximately 1mA
Reverse DC voltage: approximately 1.5V
Overload protection: 250V or AC rms
DC CURRENT MEASUREMENT
Overload protection: re-settable fuse.
Range Resolution Accuracy
200Ω0.1Ω± 1.0% of reading, ± 3 digits
2kΩ0.001Ω
± 1.0% of reading, ±1 digits
20kΩ0.01Ω
200kΩ0.1Ω
2MΩ0.001MΩ
20MΩ0.01MΩ± 1.0% of reading, ± 5 digits
Function Description
The built-in buzzer sounds when the resistance is less than 50Ω
Range Description
0.001V Displays approx forward-biased voltage
Measuring Range Resolution Accuracy
20mA 0.01mA
± 1.5% of reading, ± 3 digits
200mA 0.1mA
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Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com
AC CURRENT MEASUREMENT
Overload protection: re-settable fuse
Frequency range: 40Hz to 200Hz
Response: average (rms of sine wave).
LOGIC TEST
Input impedance: 1MΩ
Overload protection: 250V or AC rms
Measuring Range Resolution Accuracy
20mA 0.01mA
± 2% of reading, ± 3 digits
200mA 0.1mA
Function Description
Logic
0V Low”0” 1.5V 3.5V High”1” 5V
I----------------------------I------------------------------I------------------------------I
Green Green /Red Red LED
LED on LED off on
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