Fieldpiece SC680 Manual de usuario

Fieldpiece

Job Link® System

Power

Clamp Meter

OPERATOR'S

MANUAL

Model SC680

INRUSH

Safety Information

Understand and follow operating instructions

carefully.

A Warning identifies conditions and procedures

that are dangerous to the user. A Caution identiﬁes

conditions and procedures that can cause damage to

the Product or the equipment under test.

WARNING

To avoid possible electric shock, personal injury or

death, follow these guidelines:

• Use the meter only as speciﬁed in this manual;

otherwise, the protection provided by the meter

may be impaired.

• Do not use if meter appears damaged. Visually

inspect the meter to ensure case is not cracked

and back case is securely in place.

• Inspect and replace leads if insulation is damaged,

metal is exposed, or probes are cracked. Pay

particular attention to the insulation surrounding

the connectors.

• Do not use meter if it operates abnormally as

protection maybe impaired.

• Use only correct measurement category (CAT),

voltage, and amperage rated probes, test leads,

and adapters for the measurement.

• Do not use this meter to verify the presence of

hazardous voltages on circuits that may have

voltages generated from frequencies above

1000Hz as the low pass filter limits voltage

measurements to below 1000Hz.

• Do not use during electrical storms or in wet

weather.

• Do not use around explosive gas, dust, or vapor.

• Do not apply more than the rated voltage to,

as marked on the meter, between terminals or

between any terminal and earth ground.

• Do not use without the battery and the back case

properly installed.

• Replace battery as soon as battery indicator

appears to avoid false readings.

• Remove the test leads from the circuit prior to

removing battery cover.

• Do not attempt to repair this unit as it has no

user-serviceable parts.

• Temperature switch prevents leaving

thermocouple plugged in while measuring

voltage.

• Do not measure current while the test leads are

in the input jacks.

• When measuring high frequency AC current,

do not exceed the rated 600AAC of the clamp.

Failure to adhere may cause the clamp to heat

up dangerously.

• Do not use the HOLD function to measure

unknown potentials. When HOLD is turned on,

the display does not change when a diﬀerent

potential is measured.

• Do not use in CAT III or CAT IV environments with

the protective cap of test probe. The protective

cap decreases the exposed probe metal <4mm.

This decreases the possibility of arc ﬂash from

short circuits.

• Do not place magnet inside Category IV panel.

Place it outside the panel instead.

CAUTION

To protect yourself, think “Safety First”:

• Voltages exceeding 30VAC or 60VDC pose a shock

hazard so use caution.

• Use appropriate personal protective equipment

such as safety glasses, face shields, insulating

gloves, insulating boots, and/or insulating mats.

• Disconnect circuit power and discharge all high-

voltage capacitors before testing resistance,

continuity, diodes, or capacitance.

Before each use:

• Perform a continuity test by touching the test

leads together to verify the functionality of the

battery and test leads.

• Use the 3 Point Safety Method. (1) Verify meter

operation by measuring a known voltage. (2)

Apply meter to circuit under test. (3) Return to

the known live voltage again to ensure proper

operation.

• Use the proper terminals, functions and range for

your measurements.

• Never ground yourself when taking electrical

measurements.

• Connect the black common lead to ground

or neutral before applying the red test lead to

potential voltage. Disconnect the red test lead

from the voltage ﬁrst.

• Always work with a partner.

• Keep ﬁngers behind the ﬁnger guards on the

probes.

All voltage tests: All voltage ranges will

withstand up to 1000VDC/750VAC rms. Do not

apply more than 1000VDC or 750VAC rms.

Symbols used:

Caution, risk of electric shock

Caution, refer to manual.

Ground

Double insulation

WARNINGS

DISCONNECT AND UNPLUG TEST LEADS before opening case.

TEST NCV FUNCTION ON KNOWN LIVE WIRE before using.

DO NOT APPLYVOLTAGE greater than 30VAC/VDC to the

thermocouple or the jacks when the rotary dial is on °F°C. (Use

only Type K thermocouples)

DO NOT APPLYVOLTAGETOTHE JACKS when the rotary dial is on

microamps. Even low voltages can cause a current overload and

potentially harm the meter.

Description

Your SC680 is the top of the line clamp meter with

wireless functionality for the HVACR professional. Send

your electrical measurements directly to the Job Link®

System mobile app. Leave the meter behind a closed

blower door and view the current measurement on your

mobile device.

Help determine system efficiency by directly

measuring power consumption (W) of the system. Use

this value to inform your customer of energy saving

measures you can take to help them save money on

their energy bills.

The SC680 is the only meter you’ll need for

troubleshooting mini-split systems. Dual Type K

temperature ports to measure entering/exiting air

temperatures and measure frequency (Hz) directly with

clamp jaw. Reach those cramped mini-split connectors

with the included RCT2 probe tips for voltage and

resistance measurements.

Hang your SC680 clamp meter to any metallic surface

with the heavy-duty magnet.When the job is done, store

your test leads in the back case for tidy and convenient

storage. See both voltage and amperage readings at the

same time on the large dual display.

Easily see your amperage readings no matter how you

clamp around a wire with the swivel head AAC clamp.

Verify the order of 3-phase voltage lines with just two

leads. Capture L1-L2 and L1-L3 to check that motor lines

are correctly installed with Phase Rotation test.

Take more accurateVAC and AAC readings on variable

frequency drives with True RMS sensing technology.

Measure the starting amp draw of a compressor with

Inrush current mode.

Illuminate the way with a powerful LED built into the

clamp jaw. Easily see your measurements with the bright

blue backlight on the display. Safely change functions

with the backlit illuminated dial.

Take measurements more safely with one hand

using the single test lead holder. Test leads come with

removable gold plated tips to reliably connect Fieldpiece

accessory heads.

What’s Included

• SC680 Job Link® System Power Clamp Meter

• ADLS2 Deluxe Test Leads Kit

• ASA2 Alligator Clips

• RCT2 Molex Probe Tips

• 2 ATB1 Type K Thermocouples

• 2 Velcro Straps

• 9V Alkaline Battery (Not installed)

• ANC7 Protective Padded Case

• Operator’s manual

Quick Start

1. Forelectricaltesting,connecttestleadstoblack "COM"

and red "+" jacks.

2. Rotate the dial to your desired measurement.

3. Connect to test points and read measurement.

4. For temperature testing, remove test leads, slideTEMP

switchtothe rightand connectTypeK thermocouples.

Measurements Dial

The SC680 is loaded with the measurement

parameters essential for HVACR professionals.

Select the parameter on the dial you want to

measure with the rotating selector switch.

Buttons

Illuminatebacklight.Pressfor1secondto

zero Amps DC

Activate Inrush AAC capture mode

ActivatewirelesstoconnecttoJob Link®

System mobile app

ActivateandcyclethroughHold,Maximum,

minimum,andreal-timemeasurements

(Press for 1 second to clear and exit)

Deactivate autoranging and select the

range manually

Cycle through displayed values on

applicable switch positions (Press for 1

second to toggle °F and °C)

TRUE RMS AUTO OFF

TYPE K 30V MAX

L1 L2

Sync

OFF

Range Select H/M/m

SC660

ZERO A

°F °C

TEMP

CAT III

600V

COM

INRUSH

TRUE RMS AUTO OFF

TYPE K 30V MAX

L1 L2

Sync

OFF

Range Select H/M/m

SC660

ZERO A

°F °C

TEMP

CAT III

600V

COM

INRUSH

TRUE RMS AUTO OFF

TYPE K 30V MAX

L1 L2

Sync

OFF

Range Select H/M/m

SC660

ZERO A

°F °C

TEMP

CAT III

600V

COM

INRUSH

TRUE RMS AUTO OFF

TYPE K 30V MAX

L1 L2

Sync

OFF

Range Select H/M/m

SC660

ZERO ADC

°F °C

TEMP

CAT III

600V

COM

INRUSH

TRUE RMS AUTO OFF

TYPE K 30V MAX

L1 L2

Sync

OFF

Range Select H/M/m

SC660

ZERO ADC

°F °C

TEMP

CAT III

600V

COM

INRUSH

1110

Display Icons

Battery Life Monitor

Auto Power Oﬀ Enabled

High Voltage Warning (>30VAC/VDC)

Manual Ranging

Data Hold

Maximum

Minimum

Inrush AAC

Wireless ON to Job Link® mobile app

Watts (Active Power)

Power Factor

Reactive Power

Apparent Power

Temperature Inputs

Delta T

Fahrenheit / Celsius

Continuity Test

Diode Test

Frequency (Hertz)

Duty Cycle (percentage)

Resistance Test (Ohms)

Capacitance Test (farads)

Microamps DC

Nano Unit (10−9, one billionth)

Micro Unit (10−6, one millionth)

Milli Unit (10−3, one thousandth)

Kilo Unit (103, one thousand)

Mega Unit (106, one million)

Alternating Current

Direct Current

Easy to Read Display

Easily see your measurements on the large dual

display. You’ll never miss a reading no matter the

lighting with the bright blue backlight to illuminate

the way.

1312

Measurement Dial

Volts AC (VAC) True RMS (50-400Hz)

Test power lines (120 to 480VAC), test 24VAC going to controls and test

for transformer failure.

Ranges: 1000mV, 10V, 100V, 750V Resolution: 0.1mV

Accuracy: ±(1.5% + 10) 50Hz to 60Hz

±(2.0% + 10) 60Hz to 400Hz

Unspeciﬁed at 400Hz and greater

Minimum Input Voltage Range: >20 digits

Low Pass Filter: >1 kHz

Crest Factor: ≤ 3

Audio/Visual Hi-V Indicator: >30VAC/VDC

Input Impedance: 5MΩ

Overload Protection: 1000VDC or 750VAC rms

Volts DC (VDC)

Select VDC and measure DC voltages on circuit boards on more

advanced HVACR systems and logic control boards. In VDC/ADC dial

position, VDC is shown on lower display. Press SELECT button to show ADC

on the top display at the same time.

Ranges: 1000mV, 10V, 100V, 1000V Resolution: 0.1mV

Accuracy: ±(0.5% + 5)

Input Impedance: 5MΩ

Overload Protection: 1000VDC or 750VAC rms

Non Contact Voltage (NCV)

Use NCV to check 24VAC from a thermostat or live voltage up to 600VAC.

Always test a known live source before using. A segment graph and RED

LED will display the presence of voltage. An audible beep increases from

intermittent to continuous as intensity of ﬁeld (EF) increases.

AC Voltage Detection Range: 24VAC to 600VAC (50-60Hz)

1514

Amps AC (AAC) True RMS (50-60Hz)

Test isolated power lines. Press SELECT onVAC/100AAC/Hz or

VAC/600AAC/Hz position. Read AAC in upper display and VAC on the lower

display. For AC current <100AAC, select VAC/100AAC/Hz switch position

and for AC current >100AAC, select the VAC/600AAC/Hz switch position.

Range: 100A, 600A Resolution: 0.01A Crest factor: ≤ 3

Accuracy: ±(2.5% + 15) 100A, ±(2.0% + 10) 600A

Minimum Input Current Range: >20 digits

Overload Protection: 600AAC Jaw Opening: 1.2in (30 mm)

Frequency (Hz) Through Clamp

Measure Hz on variable frequency drive motors.Turn dial to either

VAC/100AAC/Hz or VAC/600AAC/Hz position and press SELECT twice. Hz

will show in upper display andVAC on the lower display at the same time.

Range: 10Hz to 400Hz Resolution: 0.1Hz

Accuracy: ±(0.1% + 5)

Minimum current range: >7AAC (10 to 100Hz); >20AAC (100 to

400Hz) on 100AAC range; >25AAC (10 to 400Hz) on 600AAC range.

Overload Protection: 600AAC

Amps DC (ADC)

Measure ADC through the clamp jaw. Press

TRUE RMS AUTO OFF

TYPE K 30V MAX

L1 L2

Sync

OFF

Range Select H/M/m

SC660

ZERO A

°F °C

TEMP

CAT III

600V

COM

INRUSH

for 1 second to zero

the ADC value in the top display.

Ranges: 100A, 600A Resolution: 0.01A Jaw Opening: 1.2in (30 mm)

Accuracy: ±(2.5% + 15) 100A, ±(2.0% + 10) 600A

Overload Protection: 600ADC

Amps AC (AAC), Frequency (Hz) through the clamp and Inrush AAC current

is measured in theVAC/100AAC/Hz orVAC/600AAC/Hz switch position

shown above.

Inrush AAC Current

Inrush mode captures the starting amp draw of a motor. Starting amp

draw can assist in diagnosing a motor before it fails.

Activate Inrush mode

1 Rotate selector switch to VAC/100AAC/Hz or VAC/600AAC/Hz

2 Press SELECT once to show AAC on upper display. Press INRUSH on the

right side of meter to activate Inrush Mode.

3 Clamp jaw around the motor’s start wire.

4 Turn motor on. The starting amp draw will hold on the upper display.

5 Press INRUSH to clear captured reading. Press INRUSH for 2 seconds to

exit.

Inrush measurement period: 100-milliseconds

Minimum input: >2A on 100AAC range; >20A on 600A range

Note: AAC or Hz through the clamp and VAC through the test leads

can be measured simultaneously. However, if only AAC, Frequency

(Hz), or Inrush AAC is measured through the clamp, test leads and

thermocouples must be unplugged from the meter.

1716

MicroAmps DC (µADC)

Test ﬂame rectiﬁer diodes on a heater control. Connect leads between

ﬂame sensor probe and control module.Turn heating unit on. When the

ﬂame is on, there should be a measurable µADC signal, typically under

10µADC. Compare measurement to manufacturer’s speciﬁcation to

determine if replacement is necessary.

Ranges: 1000µA Resolution: 0.1µA

Accuracy: ±(1.0% + 5) Volts burden: 5V

Overload Protection: 600VDC or 600VAC rms

Frequency (Hz) Through Leads

Check incoming voltages to ensure they are cycling at 60Hz. For

frequency measurements onVFD equipment, use the amp clamp.

Ranges: 100Hz, 1000Hz, 10kHz, 100kHz, 1000kHz Resolution: 0.01Hz

Accuracy: ±(0.1% + 5) Sensitivity: 10Hz to 1000kHz: >3.5Vrms

Minimum PW: >1µs Duty Cycle Limits: >30% and <70%

Overload Protection: 600VDC or 600VAC rms

Duty Cycle (%)

Duty cycle shows the % OnTime of a 5V logic signal square wave.

Ranges: 5%-95% (40Hz to 1kHz), 10%-90% (1kHz to 10kHz), 20%-80%

(10kHz to 20kHz)

Accuracy (5V logic): ±(2% + 10) Resolution: 0.1%

Pulse Width: >10µs

Overload Protection: 600VDC or 600VAC rms

Capacitance (MFD)

Test motor start and run capacitors. Capacitors are one of the most

failure prone components in a HVACR system. Disconnect from power and

any resistors found between terminals. Discharge capacitor before testing. If

dIS.C is displayed, the capacitor needs to be fully discharged to test.

Ranges: 10nF, 100nF, 1000nF, 10µF, 100µF, 1000µF, 10mF

Accuracy: ±(3% + 15) 10nF, ±(3% + 5) 100nF to 1000µF, ±(5% + 5) 10mF

Resolution: 0.01nF Overload Protection: 600VDC or 600VAC rms Discharge Cap First!

1918

Resistance (Ω)

Used for“ohming out”a compressor. A 0.01Ω resolution is useful to

test the resistance between the terminal poles because the values are

typically very low. For best practice, use a megger (Fieldpiece SMG5) to

measure motor winding insultion to ground.

Ranges: 100Ω, 1000Ω, 10kΩ, 100kΩ, 1000kΩ, 10MΩ, 50MΩ

Resolution: 0.01Ω

Accuracy: ±(1.0% + 15) 100Ω, ±(1.0% + 5) 1000Ω to 100kΩ, ±(1.5%

+ 5) 1000kΩ, ±(3.0% + 5) 10MΩ to 50MΩ

Open circuit volts: -1.1VDC typical, -3.2VDC (100Ω range)

Overload Protection: 600VDC or 600VAC rms

Continuity (

FD NCV

VAC VDC

AAC

°C

°F

SC56

AUTO OFFTRUE RMS

CAT III

600V

TEMP K-TYPE

30V

MAX

SEL

HOLD

INRUSH

)

Perfect for checking isolated fuses, use the continuity function to test

whether a circuit is open (no beep, no green LED) or closed (beep and

green LED). Press SELECT once to enter Continuity mode.

Range: 100Ω Resolution: 0.01Ω Response time: 100ms

Audible beep: <30Ω

Visual Indicator: Green LED

Overload Protection: 600VDC or 600VAC rms

Diode Test (

FD NCV

AC VDC

AAC

°C

°F

SC56

AUTO OFFTRUE RMS

CAT III

600V

TEMP K-TYPE

30V

MAX

SEL

HOLD

INRUSH

)

Test diodes for proper forward and reversed-biased functions. A

voltage will display in forward-bias and“OL”in reversed-bias. Press SELECT

twice to enter Diode mode.

Test current: 0.8mA (Approx.) Accuracy: ±(1.5% + 5)

Open circuit volts: 3.2VDC typical Audible beep: <0.05V

Visual Indicator: Green LED

Overload Protection: 600VDC or 600VAC rms

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