AMPROBE ACD-10 TRMS-Plus Clamp Multimeters User Manual

**AMPROBE ACD-10 TRMS-Plus Clamp Multimeters User Manual

**

SYMBOLS

| Caution ! Refer to the explanation in this Manual
---|---

| Caution ! Risk of electric shock
| Earth (Ground)

| Double Insulation or Reinforced insulation

| AC–Alternating Current

| DC–Direct Current

| Conforms to relevant Australian standards

| Underwriters Laboratories Inc. [Note: Canadian and US.]
| Complies with European Directives

| Application around and removal from hazardous live conductors is permitted

| Do not dispose of this product as unsorted municipal waste

Introduction

The ACD-10 PLUS and ACD-10 TRMS-PLUS are digital clampmeters that measure both AC and DC voltage, AC current, Resistance, Frequency, Continuity and Diode Test. Frequency can be measured in the voltage and current modes.

Warnings and Precautions

Safety Information

• The ACD-10 Series Digital Clampmeters conform to EN61010-1:2001; EN61010-2- 032:2002; CAT III 600 V, class 2 and pollution deg. 2.
• This instrument is EN61010-1 certified for Installation Category III ( 600V). It is recommended for use in distribution level and fixed installations, as well as lesser installations, and not for primary supply lines, overhead lines and cable systems.
• Do not exceed the maximum overload limits per function (see specifications) nor the limits marked on the instrument itself. Never apply more than 600 Vdc/600 V ac rms between the test lead and earth ground.
• Before and after hazardous voltage measurements, test the voltage function on a known source such as line voltage to determine proper meter functioning.
• Disconnect the test leads from the test points before changing meter functions.
• Inspect the Clampmeter, test leads and accessories before every use. Do not use any damaged part.
• Never ground yourself when taking measurements. Do not touch exposed circuit elements or test probe tips.
• Do not operate the instrument in an explosive atmosphere.
• To reduce the risk of fire or electric shock, do not expose this product to rain or moisture.
• The meter is intended only for indoor use. To avoid electrical shock hazard, observe the proper safety precautions when working with voltages above 60 VDC or 30 VAC rms. These voltage levels pose a potential shock hazard to the user.
• Before and after hazardous voltage measurements, test the voltage function on a known source such as line voltage to determine proper meter functioning.
• Keep your hands/fingers behind the hand/finger barriers (of the meter and the test leads) that indicate the limits of safe access of the hand-held part during measurement.
• Inspect test leads, connectors, and probes for damaged insulation or exposed metal before using the instrument. If any defects are found, replace them immediately.
• This Clamp-on meter is designed to apply around or remove from uninsulated hazardous live conductors. Individual protective equipment must be used if hazardous live parts of the installation could be accessible.
• Exercise extreme caution when: measuring voltage >20 V // current >10 mA // AC power line with inductive loads // AC power line during electrical storms // current, when the fuse blows in a circuit with open circuit voltage >600 V // servicing CRT equipment.
• Remove test leads before opening the case to change the battery.
• Disconnect circuit power and discharge all high-voltage capacitors before testing resistance, continuity, diodes, or capacitance.
• To avoid false readings, which could lead to possible electric shock or personal injury, replace the batteries as soon as the low battery indicator appears.

Unpacking and Inspection

Your shipping carton should include:

• Digital clamp meter 1
• Carrying case 1
• Test lead set (one black, one red) 1
• One 9V battery (installed) 1
• Manual 1
  If any of the items are damaged or missing, return the complete package to the place of purchase for an exchange.

Features of this instrument

1. Transformer Clamp Jaw for AC current magnetic field pick up
2. Hand/Finger Barrier to indicate the limits of safe access of the meter during measurement
3. Push-buttons for special functions & features.
4. Push-buttons for special functions & features on Slide-switch Selector functions
5. Input Jack for all functions EXCEPT non-invasive ACA current function
6. Common (Ground reference) Input Jack for all functions
7. Slide-switch Selector to turn the power ON/OFF and Select a function
8. 3-3/4 digits 4000 counts LCD display
9. Jaw trigger for opening the transformer clamp jaw
10.  Jaw center Indicators, at where best ACA accuracy is specified
11.  Jaw marking lines for ACA position error indication.
    

CAUTION

The Hz button will alternate the display between the voltage function selected and frequency reading.

Measuring DC Voltage See Figure -1-

1. Set the Function Switch to V .
2. Connect the test leads: Red to +, Black to COM.
3. Connect the test probes to the circuit test points.
4. Read the display, and if necessary, correct any overload (0L) conditions.
   
   Figure -1

Measuring AC Voltage See Figure -2-

1. Set the Function Switch to V .
2. Connect the test leads: Red to +, Black to COM.
3. Connect the test probes to the circuit test points.
4. Read the display, and if necessary, correct any overload (0L) conditions.
   
   Figure -2

CAUTION

The Hz button will alternate the display between the AC current and frequency reading.

Measuring AC Current See Figure -3-

1. Set the Function Switch to A� position.
2. Open spring-loaded clamp by pressing the lever on left side of meter.
3. Position clamp around one wire or conductor and release the clamp lever. Make sure that the clamp is entirely closed. The clamp must be positioned around only one conductor. If it is placed around two or more current carrying conductors, the reading is FALSE.
4. Read the displayed value, and if necessary, correct any overload (0L) conditions.
   
   Figure -3

Measuring Frequency See Figure -2

Note: Both ammeter and voltmeter can be used for frequency measurement. The clamp-on Ammeter detects the frequency of the current circulating in the cable or bus-bar under test (the current must be greater than 1A in the 400A range and greater than 15A in the 600A range). The Voltmeter detects the frequency of the voltage applied to the test leads.

Figure -2

1. Set-up for AC current or AC voltage measurement and press the Hz button.
2. Read the frequency value on the display

CAUTION

Using the Resistance, Continuity, Diode or Capacitance functions on a live circuit will produce false results and may damage the instrument. In many cases the suspected component must be disconnected from the circuit to obtain an accurate measurement reading.

Measuring Resistance See Figure -4-

1. Set the Function Switch to Ω.
2. Connect the test leads: Red to +, Black to COM.
3. Turn off power to the circuit being measured.
4. Discharge any capacitors that may influence the reading.
5. Connect the test probes across the resistance.
6. Read the display. If 0L appears on the highest range, the resistance is too large to be measured or the circuit is an open circuit.
   
   Figure -4

Testing for Continuity See Figure -5-

1. Set the Function Switch to Ω and press the SELECT button until � is displayed.
2. Connect the test leads: Red to +, Black to COM.
3. Turn off power to the circuit being measured.
4. Discharge any capacitors that may influence the reading.
5. Connect the test probes across the resistance or the two points of test.
6. Listen for the tone that indicates continuity ( >10 Ω and <  120  Ω).
   
   Figure -5

Testing Diodes See Figure -6-

1. Set the Function Switch to Ω and press the SELECT button until is displayed.
2. Connect the test leads: Red to +, Black to COM.
3. Turn off power to the circuit being measured.
4. Free at least one end of the diode from the circuit.
5. Connect the test probes across the diode noting polarity.
6. Read the display. A good diode has a forward voltage drop of about 0.6 V. An open or reverse biased diode will read .0L.
   
   Figure -6

Measuring Capacitance See Figure -7-

1. Set the Function Switch to Ω and press the SELECT button until  is displayed.
2. Connect the test leads: Red to +, Black to COM.
3.  Turn off power to the circuit being measured.
4. Discharge the capacitor using a 100 kΩ resistor.
5. Free at least one end of the capacitor from the circuit.
6. Connect the test probes across the capacitor.
7. Read the display.
8.  Relative zero mode can be used to zero out the parasitic capacitance of the leads and the internal protection circuitry of the meter when measuring low capacitance in the order of Pico Farad (pF).
   
   Figure -7

Features

HOLD / MAX

The HOLD feature freezes the display when the button is pressed. The MAX feature compares and displays the measured maximum value as fast as 30ms with auto-ranging capability.

HOLD

Press the HOLD button momentarily toggles to hold mode for all of the functions. To release the HOLD feature momentarily press the HOLD button.

MAX

Press the HOLD button for 1 second or more activates the MAX HOLD feature for the VDC, VAC and ACA functions. To release the MAX  HOLD feature press the HOLD button for 1 second or more.

Relative zero mode

Relative zero mode allows the user to offset the meter consecutive measurements with the displayed reading as the reference value. The display will now show readings relative to the stored reference value. That is, display = reading – stored value. Press the r button momentarily to set relative zero mode. To release the relative zero mode, press the r button momentarily.

Auto Power Off (APO)

When the meter is on, the Auto Power Off (APO) feature will switch the meter into a sleep mode automatically to extend battery life after approximately 30 minutes of no slide-switch nor push button operations. To wake up the meter from APO, press the buttons momentarily or set the slide-switch to the OFF position and then slide back on again. Always set the slide-switch to the OFF position manually when the meter is not in use.

MAINTENANCE

WARNING

To avoid electrical shock, disconnect the meter from any circuit, remove the test leads from the input jacks and turn OFF the meter before opening the case. Do not operate with open case.

Trouble Shooting

If the instrument fails to operate, check batteries and test leads etc., and replace as necessary. Double check operating procedure as described in this user’s manual. If the instrument voltage-resistance input terminal has subjected to high voltage transient (caused by lightning or switching surge to the system) by accident or abnormal conditions of operation, the series fusible resistors will be blown open (become high impedance) like fuses to protect the user and the instrument. Most measuring functions through this terminal will then be open circuit. The series fusible resistors and the spark gaps should then be replaced by qualified technician. Refer to the LIMITED WARRANTY section for obtaining warranty or repairing service.

Cleaning and Storage

Periodically wipe the case with a damp cloth and mild detergent; do not use abrasives or solvents. If the meter is not to be used for periods of longer than 60 days, remove the battery and store separately.

Battery replacement

The meter uses a 3V IEC-CR2032 coin battery. Remove the test leads and loosen the two screws from the case bottom and remove the bottom case. Slide the battery out the side of the holder and replace with a new battery (observe polarity). Replace the bottom case. Re-fasten the screws.

GENERAL SPECIFICATION

Display : 3-3/4 digits 4000 counts LCD display
Update Rate : 3 per second nominal
Polarity : Automatic
Operating Temperature : 0 °C to 40 °C; < 80% RH for temperature up to 31 °C decreasing linearly to 50% RH at 40 °C
Altitude : Operating below 2000m; Indoor use
Storage Temperature : -20 oC to 60 oC, < 80% RH (with battery removed)
Temperature Coefficient : nominal 0.15 x (specified accuracy)/oC @(0 oC ~ 18 oC or
28 oC ~ 40 oC)
Low Battery : Below approx. 2.4V
Power Supply : 3V coin battery IEC-CR2032
Power Consumption : 2.8 mA typical except that 3.3 mA typical for ACA function
APO Timing : Idle for 30 minutes
APO Consumption : 5 μA typical
Dimension : 190 x 63 x 32 mm (7.4 x 2.5 x 1.3 in)
Weight : 139 gm approx
Jaw opening & Conductor diameter : max 26 mm
Accessories : Test leads, battery installed, user’s manual, & soft carrying pouch;
Special Features : 30ms Max Hold; Data Hold; Relative Zero mode
  Safety: Meets EN61010-2-032, UL61010B-2-032, IEC61010-1 2nd Ed., EN61010-1
2nd Ed., UL61010-1 2nd Ed. CAT III-600 Volts ac & dc; Pollution degree : 2
EMC: Conforms to EN61326-1.

This product complies with requirements of the following European Community Directives: 89/ 336/ EEC (Electromagnetic Compatibility) and 73/ 23/ EEC (Low Voltage) as amended by 93/ 68/ EEC (CE Marking). However, electrical noise or intense electromagnetic fields in the vicinity of the equipment may disturb the measurement circuit. Measuring instruments will also respond to unwanted signals that may be present within the measurement circuit. Users should exercise care and take appropriate precautions to avoid misleading results when making measurements in the presence of electronic interference.

ELECTRICAL SPECIFICATION Accuracy at 23 °C ± 5 °C & < 75% R.H.

DC Voltage

Range| Accuracy
400.0 mV| ±( 0.3% + 4 digits)
4.000, 40.00, 400.0 V| ±( 0.5% + 3 digits)
600 V| ±( 1.0% + 4 digits)
NMRR :| >50 dB @ 50/60Hz
CMRR :| >120 dB @ DC, 50/60 Hz, Rs=1 kΩ
Input Impedance :| 10 MΩ, 30 pF nominal (1000 MΩ for 400.0 mV range)
Transient protection :| 6.5 kV (1.2/50 μs surge)
AC Voltage (50Hz ~ 500Hz
4.000, 40.00, 400.0 V| ±( 1.5% + 5 digits)
600 V| ±( 2.0% + 5 digits)
CMRR| >60dB @ DC to 60 Hz, Rs=1 kΩ
Maximum Crest Factor:| < 1.75 : 1 at full scale & < 3.5 : 1 at half scale limited to fundamental and harmonics, that fall within the meter specified AC bandwidth for non-sinusoidal waveforms
Input Impedance :| 10 MΩ, 30 pF nominal
Transient protection :| 6.5 kV (1.2/50μs surge)
ACD-10 Plus:| Average Sensing
ACD-10 TRMS-PLUS:| True RMS sensing – 5 % to 100 % of range
ACA Current (Clamp-on 50Hz / 60Hz)
40.00, 400.0, 600 A| ±( 1.5% + 8 digits)
Overload Protections :| ACA Clamp-on jaws : 600 A rms continuous
ACD-10 Plus:| Average Sensing
ACD-10 TRMS-PLUS:| True RMS sensing – 10 % to 100 % of range

1. Max Induced error from adjacent current carrying conductor: 0.05 A
2. Specified accuracy is from 1% to 100% of range and for measurements made at the jaw center. When the conductor is not positioned at the jaw center, position errors introduced are: Add 2% to specified accuracy for measurements made BEYOND jaw marking lines (toward jaw opening)
3. Add 8 digits to specified accuracy @ reading < 10% of range .

Frequency

Capacitance

1. Additional 50.00nF range accuracy is not specified
2. Accuracies with film capacitor or better
3. Specified with battery voltage above 2.8V (approximately half full battery). Accuracy decreases gradually to 12% at low battery warning voltage of approximately 2.4V

Transient protection : 6.5 kV (1.2/50 μs surge)

Audible Continuity Tester

Audible indication : between 10 Ω and 120 Ω.
Transient protection : 6.5 kV (1.2/50 μs surge)

Diode Tester / Open Circuit Voltage Test Current

(Typical): < 1.6 VDC @ 0.25 mA
Transient protection: 6.5 kV (1.2/50 μs surge)

*Max Hold (where applicable)**

Specified accuracy ± 50 digits for changes > 25 ms in duration

Warranty

Limited Warranty and Limitation of Liability

Your Amprobe product will be free from defects in material and workmanship for 1 year from the date of purchase. This warranty does not cover fuses, disposable batteries or damage from accident, neglect, misuse, alteration, contamination, or abnormal conditions of operation or handling. Resellers are not authorized to extend any other warranty on Amprobe’s behalf. To obtain service during the warranty period, return the product with proof of purchase to an authorized Amprobe Test Tools Service Center or to an Amprobe dealer or distributor. See Repair Section for details. THIS WARRANTY IS YOUR ONLY REMEDY. ALL OTHER WARRANTIES – WHETHER EXPRESS, IMPLIED OR STAUTORY – INCLUDING IMPLIED WARRANTIES OF FITNESS FOR A  ARTICULAR PURPOSE OR MERCHANTABILITY, ARE HEREBY DISCLAIMED. MANUFACTURER SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, ARISING FROM ANY CAUSE OR THEORY. Since some states or countries do not allow the exclusion or limitation of an implied warranty or of incidental or consequential damages, this limitation of liability may not apply to you.

Repair

All test tools returned for warranty or non-warranty repair or for calibration should be accompanied by the following: your name, company’s name, address, telephone number, and proof of purchase. Additionally, please include a brief description of the problem or the service requested and include the test leads with the meter. Non-warranty repair or replacement charges should be remitted in the form of a check, a money order, credit card with expiration date, or a purchase order made payable to Amprobe® Test Tools.

In-Warranty Repairs and Replacement – All Countries

Please read the warranty statement and check your battery before requesting repair. During the warranty period any defective test tool can be returned to your Amprobe® Test Tools distributor for an exchange for the same or like product. Please check the “Where to Buy” section on www. amprobe.com for a list of distributors near you. Additionally, in the United States and Canada In Warranty repair and replacement units can also be sent to a Amprobe® Test Tools Service Center (see address below).

Non-Warranty Repairs and Replacement – US and Canada

Non-warranty repairs in the United States and Canada should be sent to a Amprobe® Test Tools Service Center. Call Amprobe® Test Tools or inquire at your point of purchase for current repair and replacement rates.

In USA
Amprobe Test Tools
Everett, WA 98203
Tel: 877-AMPROBE (267-7623)

In Canada
Amprobe Test Tools
Mississauga, ON L4Z 1X9
Tel:905-890-7600

Non-Warranty Repairs and Replacement – Europe

European non-warranty units can be replaced by your Amprobe® Test Tools distributor for a nominal charge. Please check the “Where to Buy” section on www.amprobe.com for a list of distributors near you.

European Correspondence Address* Amprobe® Test Tools Europe In den Engematten 14 79286 Glottertal, Germany Tel.: +49 (0) 7684 8009 – 0

(Correspondence only – no repair or replacement available from this address. European customers please contact your distributor.)

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Visit: www.Amprobe.com

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References

• Amprobe | Electrical Test and Measurement Tools
• Amprobe | Electrical Test and Measurement Tools

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