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Summary of Contents for Martindale Electric CM57
- Page 1 CM57 TRMS AC SMART CLAMP MULTIMETER nstructIon anual...
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Page 2: Table Of Contents
ALWAYS READ THESE INSTRUCTIONS BEFORE PROCEEDING Thank you for buying one of our products. For safety and a full understanding of its benefits please read this manual before use. Technical support is available from +44 (0)1923 441717 and support@martindale-electric.co.uk CONTENTS Safety Information Meaning of Symbols and Markings Precautions... -
Page 3: Safety Information
1. SAFETY INFORMATION: Always read before proceeding. REMEMBER: SAFETY IS NO ACCIDENT These instructions contain both information and warnings that are necessary for the safe operation and maintenance of this product. It is recommended that you read the instructions carefully and ensure that the contents are fully understood. -
Page 4: Precautions
(Measurement Category IV) is applicable to test and CAT IV measuring equipment connected at the source of the building’s low-voltage MAINS installation. For further information on measurement categories see page 15 or visit www.martindale-electric.co.uk/measurement_ categories.php Equipment complies with relevant directives Equipment complies with relevant UK Conformity Assessed marking End of life disposal of this equipment should be in... - Page 5 Always check the unit’s specified limits before use. If the clamp meter is used in a manner not specified by Martindale Electric, the protection provided by the clamp meter may be impaired.
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Page 6: Introduction
If there is any damage then consult your distributor immediately. 2.2 Description The Martindale CM57 has a SMART function that automatically detects if AC or DC voltage is being measured when set to the voltage function. The SMART function also automatically determines if resistance or capacitance is being measured or if a diode is being tested. -
Page 7: Accessories
• Display hold • Auto power off • Auto ranging • Display backlight 2.3 Accessories The CM57 comes with the following accessories: • Carrying case • Set of TL16 test leads • 2 x 1.5V AAA batteries • Instructions 2.4 Battery Installation Refer to section 4.1 (Battery Replacement) for the battery installation... -
Page 8: Description Of Clamp Meter Elements
3.3 Description of Clamp Meter Elements Clamp current sensing jaws NCV sensing area Clamp safety protection barrier Clamp trigger Rotary function selector switch Backlight button Frequency selector button Hold button Liquid crystal display COM input terminal Positive input terminal 3.4 Description of Press Buttons Selects backlight Selects frequency measurement Selects display hold... -
Page 9: Description Of Lcd Symbols
3.5 Description of LCD Symbols Figure 1 Auto power off is activated Display hold is activated Diode test function is selected Continuity function is selected SMART function is active SMART Indicates AC measurement Indicates DC measurement A, V, Ω, kΩ, MΩ, Hz, Units of measurement being displayed nF, µF Indicates >30V present between terminals... -
Page 10: Backlight
3.7 Backlight Press the button to turn on the backlight. Press again to turn the backlight off. The backlight will automatically turn off after 30 seconds to conserve the battery. 3.8 Display Hold To hold a displayed value, press the HOLD button. The LCD will display HOLD. -
Page 11: Voltage Measurements
3.11 Voltage Measurements 1. Connect the black test lead to the terminal and the red test lead to terminal. 2. Set the rotary switch to the V position. The LCD will display SMART. 3. The smart function will automatically detect if an AC or DC voltage is present at the terminals. -
Page 12: Capacitance Measurements
3.14 Capacitance Measurements Be sure the capacitor being tested is completely discharged before connecting the test leads. 1. Connect the black test lead to the terminal and the red test lead to terminal. 2. Set the rotary switch to the Ω... -
Page 13: Use As A Non-Contact Voltage Detector
3.16 Use as a Non-contact Voltage Detector Non-contact voltage detector testing is not suitable to determine if a circuit is not hazardous live. A double pole voltage test should always be used for that purpose. Before and after each use, the non-contact voltage detector function must be proven using a suitable proving device or a known good voltage source. -
Page 14: Maintenance
TL16 test leads supplied. 4.3 Calibration To maintain the integrity of measurements made using your instrument, Martindale Electric recommends that it is returned at least once a year to an approved Calibration Laboratory for recalibration and certification. -
Page 15: Cleaning
4.5 Repair & Service There are no user serviceable parts in this unit other than those that may be described in section 4. Return to Martindale Electric if faulty. Our service department will quote promptly to repair any fault that occurs outside the guarantee period. -
Page 16: Warranty
5. WARRANTY AND LIMITATION OF LIABILITY This Martindale product is warranted to be free from defects in material and workmanship under normal use and service. The warranty period is 2 years and begins on the date of receipt by the end user. This warranty extends only to the original buyer or end-user customer, and does not apply to fuses, disposable batteries, test leads or to any product which, in Martindale’s reasonable opinion, has been misused, altered, neglected,... -
Page 17: Measurement Categories
MEASUREMENT CATEGORIES CAT Ratings Stay safe - Match your test BS EN61010-1 Installation Categories equipment safety rating to the (CAT ratings) define the risks from installation category. hazardous transient impulses and potentially lethal short circuit currents CAT II: Socket outlets and similar on the mains supply system based on points of the mains installation. -
Page 18: Specifications
Specification CM57 AC Smart Clamp Meter ELECTRICAL All specified accuracies are at 23°C ± 5°C, <80% RH for 1 year. Temperature coefficient: Add 0.1 x (specified accuracy) per °C. (0°C to 18°C, 28°C to 40°C). All accuracies below are expressed as ±... - Page 19 Specification CM57 AC Smart Clamp Meter AC Current Accuracy Range Resolution (50 to 60Hz) (60 to 400Hz) 0.01A 1.9% + 5 3.0% + 5 600A 0.1A Crest factor: <1.8 Overload protection: 660A DC or AC rms Resistance Open circuit Range...
- Page 20 Specification CM57 AC Smart Clamp Meter Frequency Measurement Range Resolution Sensitivity Accuracy function 6kHz 0.001kHz 3A rms AC current 10kHz 0.01kHz 5A rms 6kHz 0.001kHz 0.2% + 2 AC voltage 5V rms 60kHz 0.01kHz 0.1kHz 100kHz Capacitance Max. test Range...
- Page 21 Specification CM57 AC Smart Clamp Meter Diode Test Resolution Max test current Test voltage <1mA <1.2V Overload protection: 450V DC or AC rms GENERAL Display: Liquid crystal display with maximum reading 5999 Sample rate 2 times/sec Polarity: automatic, positive implied, ‘-‘ for negative polarity indication Overrange: (OL) is displayed Power: 2 x 1.5V, AAA alkaline batteries (IEC LR03, NEDA 24A)
- Page 22 Specification CM57 AC Smart Clamp Meter SAFETY Conforms to: BS EN 61010-1, BS EN 61010-2-032, CAT III 600V, CAT IV 300V. Class II, double insulation Conforms to BS EN 61326-1 SPECIFICATION FOR TL16 TEST LEADS Maximum voltage: 1000V AC/DC Maximum current: 10A continuous...
- Page 24 Ver. D1.0 Due to policy of continuous development, Martindale Electric reserves the right to alter equipment specification and description outlined in this document without prior notice. No part of this document shall be deemed to be part of any contract for the equipment unless specifically referred to as an inclusion within such contract.
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