Amprobe ACD-20SW User Manual Download Page 9

5

OPERATION
HOLD Button

Data hold freezes the reading present on the LCD at the moment the button is 
pressed.To use this menu feature, set up the meter for the type of measurement 
and range desired.
Connect the test leads to the circuit / component to be measured and then press
“HOLD” push button. The LCD reading will freeze and display “HOLD.” You may 
now remove the test leads and the reading will not change until you press Hold 
again.

RANGE Button

This function allows the user to select the range of a function that does not show 
‘RANGE’ on the LCD.

Measuring DC Voltage

1. Set the Function Switch to 

L

2. Connect the test leads: Red to +, Black to COM.
3. Connect the test probes to the circuit test points. Refer to Fig.1
4. Read the display. If necessary, correct any overload ( 0L) conditions. 

Measuring AC Voltage

1. Set the Function Switch to 

K

.

2. Connect the test leads: Red to +, Black to COM.
3. Connect the test probes to the circuit test points. Refer to Fig.2
4. Read the voltage on the primary display and the frequency on the 

secondary display. If necessary, correct any overload (0L) conditions. 

AC Current Measurement

1. Set the Function Switch to position 

?

.

2. Open spring-loaded clamp by pressing the jaw opening lever on the left 

side of meter.

3. Position clamp around one wire or conductor. Release the jaw opening 

lever. Wire should be center inside the jaws. Refer to Fig.3

4. Read the current on the primary display and the frequency on the 

secondary display. If necessary, correct any overload (OL) conditions.

Summary of Contents for ACD-20SW

Page 1: ...Users Manual ACD 20SW ACD 21SW ACD 21SWC Digital Clamp Meter For detailed specifications and ordering info go to www TestEquipmentDepot com ...

Page 2: ...ACD 20SW ACD 21SW ACD 21SWC Digital Clamp Meter Users Manual September 2009 Rev 2 2009 Amprobe Test Tools All rights reserved Printed in Taiwan English ...

Page 3: ...xclusion 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...

Page 4: ... 7 Common Ground reference Input jack for all functions EXCEPT clamp on ACA current function 8 Input jack for all functions EXCEPT clamp on ACA current function 9 NCV Push button function 10 NCV Sensor 11 Hand Finger Barrier to indicate the limits of safe access of the meter during measurement 12 Hold Push button function 13 Ohm Continuity push button function 14 Input jacks for temperature measur...

Page 5: ... 6 Continuity Testing 6 Diode Testing ACD 20SW 7 Temperature Measurement ACD 21SW ACD 21SWC only 7 Non Contact Voltage Indicator 7 Auto Power off 8 Cancellation of Auto Power off feature 8 SPECIFICATIONS 8 DC Volts 9 AC Volts 9 AC Current 9 Resistance 9 Capacitance ACD 21SW ACD 21SWC only 10 Temperature ACD 21SW ACD 21SWC only 10 Continuity 10 NCV Non Contact Voltage Indicator 10 Diode Test ACD 20...

Page 6: ...pliance This instrument is EN61010 1 certified for Installation Category III 600V It is recommended for use in primary supply lines overhead lines and cable systems and distribution level and fixed installations as well as lesser installations Do not exceed the maximum overload limits per function see specifications nor the limits marked on the instrument itself Never apply more than 600 V ac rms ...

Page 7: ...e using the instrument If any defects are found replace them immediately This Clamp on meter is designed to apply around or remove from un insulated 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 ...

Page 8: ...t or inconvenient to reach places Simply rotate the body of the meter to get an unobstructed view of the LCD display Rich set of features and CAT III 600V safety reading for use in electrical and HVAC applications The features include 180 degree rotating head for the perfect display viewing Advanced VoltTect non contact voltage detection Slim jaw design with one hand operation Measures AC Current ...

Page 9: ...3 Connect the test probes to the circuit test points Refer to Fig 1 4 Read the display If necessary correct any overload 0L conditions Measuring AC Voltage 1 Set the Function Switch to K 2 Connect the test leads Red to Black to COM 3 Connect the test probes to the circuit test points Refer to Fig 2 4 Read the voltage on the primary display and the frequency on the secondary display If necessary co...

Page 10: ...tch to e Use the e R button to select the resistance test ACD 21SW ACD 21SWC only 2 Connect the test leads Red to Black to COM 3 Turn off power to the circuit being measured Never measure resistance across a voltage source or on a powered circuit 4 Discharge any capacitors that may influence the reading 5 Connect the test probes across the resistance Refer to Fig 5 6 Read the display If 0L appears...

Page 11: ...tion Insert the thermocouple plug matching the slot widths 4 Connect the thermocouple bead to the test point Refer to Fig 6 5 Read the display If 0L appears on the display the temperature is too large to be measured or the thermocouple is open 6 ACD 21SW Fahrenheit ACD 21SWC Celsius 7 Setting up for 400 C or 400 F measurements Open bottom case and find the jumper next to jack on 400 C when the jum...

Page 12: ...nge OL or OL is displayed Zero Automatic Low battery indication The is displayed when the battery voltage drops below the operating level Measurement rate 2 times per second nominal Auto power off Approx 10 minutes Operating environment 0 C to 50 C 32 F to 122 F at 70 relative humidity Storage temperature 20 C to 60 C 4 F to 140 F at 80 relative humidity Accuracy Stated accuracy at 23 C 5 C 75 rel...

Page 13: ... to 400V ranges 600V 1mV 1 5 rdg 5 dgts on 600V range Input impedance 4V 10Me 40V 600V 9 1Me Overload protection 600VDC or AC rms AC Current 50Hz 60Hz Ranges Resolution Accuracy 40A 400A 0 01A 2 0 rdg 6 dgts Overload protection 400AAC Resistance Ranges Resolution Accuracy 400e 4ke 40ke 400ke 0 1e 1 0 rdg 4 dgts 4Me 0 1e 1 5 rdg 4 dgts 40Me 0 1e 3 0 rdg 5 dgts Open circuit volts 0 45V dc typical 1 ...

Page 14: ... and need to be discharged before testing Overload protection 600VDC or AC rms Temperature ACD 21SW ACD 21SWC only Range 35 C 400 C 30 F 400 F Resolution 0 1 F 0 1 C Accuracy 1 0 2 F 32 F 400 F 1 0 1 C 0 C 400 C 2 0 6 F 30 F 32 F 2 0 3 C 35 C 0 C Sensor type K type thermocouple Overload protection 30V Max Continuity Range 400e Resolution 1e Audible indication Less than 25e Response time 500ms Over...

Page 15: ...e a malfunction during the operation of the meter the following steps should be performed in order to isolate the cause of the problem 1 Check the battery Replace the battery immediately when the symbol appears on the LCD 2 Review the operating instructions for possible mistakes in operating procedure Except for the replacement of the battery repair of the meter should be performed only by a Facto...

Page 16: ...12 ACD 20SW Fig 3 Measuring AC Current Fig 4 Measuring Capacitance Fig 2 Measuring AC Voltage Fig 1 Measuring DC Voltage ...

Page 17: ...13 ON ON ON ON ON ON OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF Fig 7 Non Contact voltage NCV Measurement Fig 6 Measuring Temperature Fig 5 Measuring Resistance ...

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