CPS AC750 Manual de usuario
OWNER’S MANUAL (English)
Français, Español, Deutsch: www.cpsproducts.com
AC750 DIGITAL
CLAMP METER
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CONTENTS
CONTENTS
1. Safety Information
1.1 Preliminary ................................................................................1
1.2 Usage.........................................................................................2
1.3 Symbols.....................................................................................3
1.4 General Use................................................................................4
2. Description
2.1 AC750 Layout ............................................................................5
2.2 Switch, Key and Input Jack Description.....................................6
2.3 LCD Display ........................................................................... 7-8
3. Specifications
3.1 General.......................................................................................9
3.2 Technical Data.................................................................... 10-15
4. Operating Instructions
4.1 Reading Hold ...........................................................................16
4.2 Manual Measuring Range ........................................................16
4.3 Frequency Duty/Ratio Switch...................................................16
4.4 Maximum / Minimum Measurement........................................17
4.5 Function Key ............................................................................17
4.6 INRUSH Measurement.............................................................17
4.7 Back Light And Clamp Head Light............................................18
4.8 Automatic Power-Off................................................................18
4.9 Measurement Preparation........................................................18
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CONTENTS
1. Safety Information
1.1 Preliminary ................................................................................1
1.2 Usage.........................................................................................2
1.3 Symbols.....................................................................................3
1.4 General Use................................................................................4
2. Description
2.1 AC750 Layout ............................................................................5
2.2 Switch, Key and Input Jack Description.....................................6
2.3 LCD Display ........................................................................... 7-8
3. Specifications
3.1 General.......................................................................................9
3.2 Technical Data.................................................................... 10-15
4. Operating Instructions
4.1 Reading Hold ...........................................................................16
4.2 Manual Measuring Range ........................................................16
4.3 Frequency Duty/Ratio Switch...................................................16
4.4 Maximum / Minimum Measurement........................................17
4.5 Function Key ............................................................................17
4.6 INRUSH Measurement.............................................................17
4.7 Back Light And Clamp Head Light............................................18
4.8 Automatic Power-Off................................................................18
4.9 Measurement Preparation........................................................18
4.10 Current Measurement ............................................................19
4.11 Voltage Measurement ............................................................20
4.12 Frequency and Duty Ratio Measurement ...............................20
4.13 Resistance Measurement.......................................................21
4.14 Diode Test ..............................................................................21
4.15 Circuit Continuity Test............................................................22
4.16 Capacitance Measurement .....................................................22
4.17 Surge Current Measurement..................................................22
4.18 Non-Contact Voltage Detection ..............................................23
5. Maintenance
5.1 Calibration................................................................................24
5.2 Battery Replacement................................................................24
5.3 Probe Replacement..................................................................24
6. Accessories...........................................................28
7. Warranty ..............................................................29
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This meter is designed and manufactured according to safety requirements
of EN 61010-1, EN 61010-2-032, EN 61010-2-033 concerning electronic
measuring instruments with a measurement CAT III 1000V, CAT IV 600V and
pollution degree 2 and safety requirements for hand-held clamps for electrical
measurement and test.
1.1 PRELIMINARY
1.1.1 When using this meter, comply with standard safety rules:
- General shock protection
- Prevent misuse of this meter
1.1.2 After receiving meter, check for any transportation damage that may
have occurred.
1.1.3 If meter was stored or shipped under harsh conditions, confirm if
meter has been damaged.
1.1.4 Probe should be in good condition. Before use, check if probe
insulation is damaged and no bare metal wires are found.
1.1.5 Use the probe table provided with the meter to ensure safety. If
necessary, replace either probe with identical probe or one with the
same level of performance.
WARNING
BE EXTREMELY CAREFUL WHEN USING THIS METER. IMPROPER
USE OF THIS DEVICE CAN RESULT IN ELECTRIC SHOCK OR
DESTRUCTION OF THE METER. TAKE ALL NORMAL SAFETY
PRECAUTIONS AND FOLLOW THE SAFEGUARDS SUGGESTED
IN THIS MANUAL. TO EXPLOIT FULL FUNCTIONALITY OF
THIS METER AND ENSURE SAFE OPERATION, PLEASE READ
CAREFULLY AND FOLLOW THE DIRECTIONS IN THIS MANUAL.
IF THE EQUIPMENT IS USED IN A MANNER NOT SPECIFIED BY
THE MANUFACTURER, THE PROTECTION PROVIDED BY THE
EQUIPMENT MAY BE IMPAIRED.
1. SAFETY INFORMATION
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1.2 USAGE
1.2.1 DO NOT measure voltage greater than 750 V AC, 1000 V DC.
1.2.2 DO NOT measure resistor, capacitor, diode and circuit while
connected to power.
1.2.3 DO NOT measure capacitance before capacitor is discharged
completely.
1.2.4 DO NOT use meter in explosive gas, vapor or dusty environments.
1.2.5 DO NOT store or use meter in direct sunlight, high ambient
temperature or high humidity.
1.2.6 During test of currents, resistors, capacitors, diodes and circuit
connections, DO NOT connect meter to a voltage source.
1.2.7 DO NOT use unless meter bottom case and battery cover are
completely fastened .
1.2.8 During use, select the right function and measuring range.
1.2.9 During measurement, DO NOT exceed the indicated value for
each range.
1.2.10 When measuring a circuit with the meter connected, DO NOT
contact with probe tip (metal part).
1.2.11 During measurement, if voltage to be measured is more than
60 V DC or 30 V AC (RMS), always keep fingers behind finger
protection device
1.2.12 In the manual measuring range mode, when measuring an
unknown value, select the highest measuring range first.
1.2.13 Before rotating Selector Switch to change measuring function,
remove probe from circuit to be measured.
1.2.14 If you find any abnormal phenomena or failure of meter, stop
using immediately.
1. SAFETY INFORMATION
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Note-Important safety information, refer to the
instruction manual.
Application around and removal from UNINSULATED
HAZARDOUS LIVE conductors is permitted.
Caution, possibility of electric shock
Equipment protected throughout by double insulation or
reinforced insulation.
Conforms to UL STD. 61010-1, 61010-2-032, 61010-2-
033; Certified to CSA STD C22.2 NO.
61010-1, 61010-2-032,61010-2-033
Complies with European (EU) safety standards
Earth (ground) terminal
Direct current
Alternating current
Both direct and alternating current
CAT III
It is applicable to test and measuring circuits connected
to the distribution part of the building’s low-voltage
MAINS installation.
CAT IV
It is applicable to test and measuring circuits connected
at the source of the building’s
low-voltage MAINS installation.
1. SAFETY INFORMATION
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1.4 GENERAL USE
1.4.1 Do not open case to adjust or repair (only for technicians who fully
understand this meter and electrical shock hazard).
1.4.2 Before opening case or battery cover, remove probe from circuit to be
measured.
1.4.3 To avoid wrong readings causing electric shock, when “ “ appears on
meter display, replace battery immediately.
1.4.4 Clean meter with damp cloth and mild detergent. Do not use abrasives
or solvents.
1.4.5 Set Selector Switch to OFF position when meter not in use.
1.4.6 If meter is not used for an extended time, remove battery.
2. DESCRIPTION
• This meter is a portable, professional multifunction measuring
instrument with LCD display and back light. Selector Switch is
operated with one hand for easy operation.
• This meter is for measuring AC current, DC current, AC voltage,
DC voltage, frequency, duty ratio, resistance, capacitance
measurement, circuit connection, diode test and non-contact
voltage detection.
Other features include:
• Automatic measuring range and manual measuring range
• Overload protection
• Reading hold function
• Max and Min measuring function
• Clamp head frequency measurement function
• Auto power-off function
• Relative measuring function
• Low battery indicator
1. SAFETY INFORMATION
2. DESCRIPTION
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2.1 AC750 LAYOUT
1. Current clamp
head (for current
measurement)
2. Clamp head light
3. Control panel
4. Jaw Trigger
5. Function choice key
(FUNC)
6. Relative
measurement key
7. Frequency/duty ratio
switch key (Hz/%)
8. LCD display
9. Common end jack
10. Resistance,
capacitance,
voltage, frequency,
diode and continuity
input jack
11. Maximum/minimum
choice key (MAX/
MIN)
12. Reading hold/
Back light key
(BL/ HOLD)
13. Selector Switch
14. NCV indicator
15. Protective Barrier
(limit of safe
access)
16. Wire pick
2. DESCRIPTION
1
2
3
4
5
8
66
7
9
16
15
14
13
12
11
10
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2. DESCRIPTION
2.2 SWITCH, KEY AND INPUT JACK DESCRIPTION
BL/HOLD Back light or reading hold key
FUNC Function key (use with Selector Switch)
RANGE For switching manual measuring range state
REL For entering relative measurement state
Hz/% For frequency and duty ratio measurement function switch
MAX/MIN For maximum/minimum measurement function switch
OFF For turning power OFF
INPUT Jack Voltage, resistance, frequency, duty ratio, capacitance, diode,
circuit connection input wire connecting terminal
COM Jack Voltage, resistance, frequency, duty ratio, capacitance, diode,
circuit connection common wire connecting terminal
Selector
Switch For selecting function and measuring range
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2.3 LCD DISPLAY
Automatic power-off indicator
AUTO Automatic measuring range mode
INR Surge current test
Diode, on/off
REL Relative measurement mode
MAX /MIN Maximum/minimum measurement
NCV Non-contact voltage detector
Ω,kΩ,MΩOhm, Kilohm, Megohm (resistance)
nF,μF,mF Nano farad, Microfarad, Millifarad
AC, DC Alternating current, direct current
H Reading hold state
Z DC current zeroing function
Low battery icon
% Percentage (duty ratio)
mV,V,A Millivolt, Volt (voltage), Ampere (current)
Hz,kHz,MHz Frequency range
2. DESCRIPTION
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