Fieldpiece Loaded Clamp Meters

Quick Start

1. For electrical testing, connect test leads to "COM" and "+" jacks.
2. Rotate the dial to your desired measurement.
3. Connect to test points and read measurement.
4. For temperature testing, remove test leads, slide TEMP switch to the right and connect Type K thermocouple.

Certifications

• CULUS LISTED
• CE
• UL 61010-1, Third Edition
• EN61010-1
• EN61010-2-032
• EN61010-2-033
• EMC EN61326-1
• C-Tick (N22675)
• WEEE
• CATIII 600V, class II and pollution degree 2 indoor use comply with CE, RoHS compliant.
• CATIII: Is for measurements performed in the building installation.

Safety Information

• Never ground yourself when taking electrical measurements. Do not touch exposed metal pipes, outlets, fixtures, etc., which might be at ground potential, while taking measurements. Keep your body isolated from ground by using dry clothing, rubber shoes, rubber mats, or any approved insulating material.
• Disconnect the test leads before opening the case. Inspect the test leads for damage to the insulation or exposed wire. Replace if suspect.
• Keep your fingers behind the finger guards on the probes while taking measurements.
• When disconnecting from a circuit, disconnect the "RED" lead first, then the common "BLACK" lead. Use one handed testing when possible. Work with others.
• Turn off power to the circuit under test before cutting, unsoldering, or breaking the circuit. Do not measure resistance (ohms) when circuit is powered. Isolate load by disconnecting from circuit.
• Disconnect the meter from circuit before turning any inductor off, including motors, transformers, and solenoids. High voltage transients can damage the meter beyond repair.
• Do not use during electrical storms.
• Do not apply more than rated voltages between input and ground.
• Isolate capacitors from system and discharge them safely before testing.
• Temperature switch prevents leaving thermocouple plugged in while measuring voltage.
• When measuring high frequency AC current, do not exceed the rated 400AAC of the clamp. Failure to adhere may cause the clamp to heat up dangerously.
• All voltage tests: All voltage ranges will withstand up to 600V. Do not apply more than 600VDC or AC 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 APPLY VOLTAGE greater than 30VAC or 60VDC to the thermocouple or the jacks when the rotary dial is on °F°C. (Use only Type K thermocouples)
• DO NOT APPLY VOLTAGE TO THE JACKS when the rotary dial is on microamps. Even low voltages can cause a current overload and potentially harm the meter.

Description

The SC600 series are the new loaded clamp meters for the HVACR professional. Hang your SC600 series clamp meter to any metallic surface with the redesigned heavy-duty magnet and conveniently store your test leads when the job is done. See both voltage and amperage readings at the same time on the big dual LCD display, even in low light conditions using the bright blue backlight (backlight SC640 only). Easily see your amperage readings no matter how you clamp around a wire with the swivel head AAC clamp.

Take more accurate VAC and AAC readings on variable frequency drives with True RMS sensing technology (SC640 only). Measure the starting amp draw of a compressor with Inrush current feature (SC640 only). Use the clamp jaw light to easily light up the test area. (SC640 only).

Take measurements with one hand using the single test lead holder for added safety. Test leads come with removable gold plated tips to connect with Fieldpiece accessory heads.

The SC600 series clamp meters are built to withstand the rigors of HVACR with high impact plastic and a display you can read in very hot or very cold environments.

Controls

• Rotate dial to the function you want to use.
• Press to cycle Amps AC and frequency within VAC/AAC/Hz switch position.
• Press to illuminate backlight (SC640).
• Press to activate inrush current capture mode (SC640).
• Press to manually select a range.
• Press to freeze the display.

Display

• APO: Auto Power Off Enabled
• Battery Life (replace 9V if blinking)
• High Voltage Warning (>30VAC/VDC)
• Manual Range (RNG) Mode
• Data Hold Mode
• INRUSH: Inrush Amps Mode (SC640)
• Continuity Test
• Diode Test
• OFF
• Hz: Frequency Test (hertz)
• 50AAC: Amps AC (50A)
• VAC: Voltage AC
• 400AAC: Amps AC (400A)
• VDC: Voltage DC
• Ω: Resistance Test (ohms)
• MFD: Capacitance Test (farads)
• %: Duty Cycle Test (percentage)
• + : Micro Unit (10⁻⁶, one millionth)
• m: Milli Unit (10⁻³, one thousandth)
• K: Kilo Unit (10³), one thousand)
• M: Mega Unit (10⁶, one million)
• HOLD
• SELECT
• INRUSH
• RANGE
• APO
• •))): Continuity Test

Specifications

• Display: 5000 count dual display
• Backlight: 60 second duration with auto-off. Blue color. SC640 only.
• Overrange: (OL) or (-OL) is displayed
• Measurement rate: 3.3 times per second, nominal
• Zero: Automatic
• Operating environment: 32°F to 122°F (0°C to 50°C) at <70% relative humidity
• Storage temperature: -4°F to 140°F (-20°C to 60°C), 0 to 80% RH (with battery removed)
• Accuracy: Stated accuracy @ 73°F±9°F (23°C±5°C), <75%RH
• Temperature coefficient: 0.1 x (specified accuracy) per °C [0°C to 19°C (32°F to 66°F), 28°C to 50° C (82°F to 122°F)]
• APO (Auto Power Off): Approx. 30 minutes
• Power: Single standard 9-volt battery, NEDA 1604, JIS 006P, IEC 6F22
• Battery life: 200 hours typical alkaline (SC620); 100 hours typical alkaline (SC640)
• Low battery indication: Battery icon blinks and "LO.bt" is displayed when the battery voltage drops below the operating level
• Dimensions: 287.5mm (H) x 79.5mm(W) x 50.0mm(D)
• Weight: Approx. 450g including battery
• Altitude: Up to 6562 ft (2000m)
• Overload protection: 600 VDC or 600VAC rms unless otherwise stated
• Test leads: Use UL listed test leads that comply to UL61010-031 rated CATIII 600V or above. Included test leads are gold-plated and have removable safety caps.
• Please operate the instrument following all instructions of the operator's manual to avoid impairing the safety of the product.

Functions

Temperature (°F/°C)

Plug any Type K thermocouple directly into the meter to measure temperature. Cold junction is located inside the meter and allows for extremely accurate measurements even in rapidly changing ambient temperatures (going from rooftop to freezer). No adapter is required.

Range: -30°F to 932°F, (-35°C to 500°C) Resolution: 0.1°

Accuracy: ±(1°F)* 32°F to 120°F, ±(1°C) 0°C to 49°C; ±(1%+2°F) 32°F to 572°F, ±(1%+1°C) 0°C to 300°C; ±(2%+6°F) -30°F to 32°F, ±(2%+3°C) -35°C to 0°C; ±(2%+6°F) 572°F to 932°F, ±(2%+3°C) 300°C to 500°C

Sensor type: Type K thermocouple *After field calibration

Overload protection: 30 VDC or 30VAC 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. Audible beep increases from intermittent to continuous as intensity of field (EF) increases.

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

Voltage AC (VAC) (50Hz-500Hz)

Test power lines (120, 220, 480), test 24V going to controls, and test for transformer failure.

Ranges: 500mV, 5V, 50V, 500V, 600V Resolution: 0.1mV

Accuracy: ±(1.2% + 8) 500mV range (50-60Hz); ±(1.2%+8), 5V, 50V, 500V; ±(1.5% +8) 600V range

True RMS: model SC640 only Crest factor: ≤3

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

Input impedance: 10MΩ (500mV), 5MΩ (5V to 600V)

MicroAmps DC (µADC)

Microamps for flame rectifier diode test on a heater control. Connect leads between flame sensor probe and control module and turn heating unit on to read µA measurement. 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: 500µA Resolution: 0.1µA

Accuracy: ±(1.0% + 2) Volts burden: 1V

Overload Protection: 600VDC or 600VAC rms

Frequency (Hz) Through Leads

Check incoming voltages to ensure they are cycling at 60Hz. For frequency measurements on VFD equipment, use the amp clamp.

Ranges: 500Hz, 5kHz, 50kHz, 500kHz, 1MHz Resolution: 0.1Hz

Accuracy: ±(0.1%+5) Sensitivity: 10Hz to 1MHz: >3.5Vrms

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

Duty Cycle (%)

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

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

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

Overload Protection: 600VDC or 600VAC rms

Capacitance (MFD)

Set to MFD to test motor start and run capacitors. Capacitors are one of the most failure prone components in a HVACR system. Disconnect from power and resistors between terminals. Discharge capacitor before testing. If dIS.C is displayed, capacitor is not discharged completely.

Ranges: 5µF, 50µF, 500µF, 5mF Resolution: 1nF

Accuracy: ±(3%+15) 5μF, ±(3%+5) 50μF to 500μF, ±(5% +20) 5mF

Overload Protection: 600VDC or 600VAC rms

Voltage DC (VDC)

Select VDC and measure DC voltages on circuit boards on more advanced HVACR systems.

Ranges: 500mV, 5V, 50V, 500V, 600V Resolution: 0.1mV

Accuracy: ±(0.5% + 2)

Input impedance: 10MΩ (500mV), 5MΩ (5V to 600V)

Resistance (Ω)

Used for "ohming out" a compressor motor. 0.1Ω resolution is useful to test the resistance between the motor poles because the values are typically very low.

Ranges: 50Ω, 5kΩ, 50kΩ, 500kΩ, 5MΩ, 50MΩ

Resolution: 0.1Ω Overload Protection: 600VDC or 600VAC rms

Accuracy: ±(1.0% + 5) 50Ω to 500kΩ, ±(1.5% + 5) 5MΩ, ±(3.0% + 5) 50MΩ

Continuity ()))

Use the continuity feature to test if a circuit is open or closed. Use this feature to check fuses as well. A steady "beep" and green LED indicate you have continuity.

Range: 500Ω Resolution: 0.1Ω Response time: 100ms

Audible beep: <30Ω Overload Protection: 600VDC or 600VAC rms

Diode Test (+)

Test diodes for proper forward and reversed-biased functions.

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

Open circuit volts: 3.2VDC typical Audible beep: <0.03V

Visual Indicator: Green LED

Overload Protection: 600VDC or 600VAC rms

Amps AC (AAC) True RMS

Test any isolated power line. Press SELECT on VAC/AAC/Hz position. Read AAC in upper display. True RMS on SC640 only.

Ranges: 50A, 400A Resolution: 0.01A Crest factor: ≤ 3

Accuracy: ±(2.0% + 10) 50-60Hz Jaw Opening: 1.2in (30 mm)

Frequency (Hz) Through Clamp

Measure Hz on variable frequency drive motors. Turn dial to VAC/AAC/Hz and press SELECT twice. Hz will show in upper display.

Range: 10Hz to 400Hz Accuracy: ±(0.1%+5)

Minimum current range: > 5AAC Overload Protection: 400AAC

Resolution: 0.1Hz

Inrush Current (SC640 only)

Inrush feature captures starting current of a compressor motor. Starting current can assist in diagnosing a motor before it fails.

To activate Inrush feature:

1. Turn selector switch to VAC/50AAC/Hz or VAC/400AAC/Hz
2. Press SELECT to show AAC on upper display. Press INRUSH, on right side of the meter, to activate.
3. Clamp meter around compressor start wire. Turn motor on. The starting current will hold on the upper display.
4. Hold INRUSH for 2 seconds to exit Inrush feature or press and release INRUSH to measure starting current again.

Inrush measurement period: 100-milliseconds

Minimum input: >2A on 50A range; >20A on 400A range

? Note: AAC through the clamp and voltage through the test leads can be measured simultaneously. However, if only AAC, Frequency (Hz), or Inrush is measured through the clamp, test leads and thermocouple must be unplugged from the meter.

Modular Expandability

Your new Swivel Clamp Meter is compatible with all Fieldpiece Accessory Heads. With Fieldpiece Accessory Heads, you can measure any available parameter, and read the measurement on your new meter's display in real-time.

Just set the range to VDC and press the RANGE button until mV is displayed. Remove the probe tips of your test leads, and connect your accessory head (model AAV3 shown).

Visit www.fieldpiece.com to see all of the different accessory heads that Fieldpiece offers.

Temp. Calibration

For accuracies of ± 1°F, calibrate thermocouple to a known temperature. A glass of stabilized ice water is very close to 32°F (0°C) and is usually very convenient but any known temperature can be used.

1. Select the °F °C range.
2. Plug thermocouple to be calibrated into the Type K jack.
3. Unscrew A and B and remove the battery cover.
4. Stabilize a large cup of ice water. Stir the ice with the water until temperature stays at a stable value.
5. Immerse the thermocouple probe and let it stabilize. Keep stirring water to prevent thermocouple from direct contact with ice.
6. Use a small screwdriver to adjust calibration pot C below the battery as close to 32°F (0°C) as you would like.

Note: J1-J2 switch is for auto-calibration purposes only. Do not switch from J2.

Auto Power Off

Auto power off or APO will automatically turn off your meter after 30 minutes of inactivity. By default it is activated and APO will show on the display. To disable, turn meter off. Hold Range and power on the meter by turning the selector dial to any range. Release Range after the beep. APO will no longer display over the battery icon.

Auto Hold

Press and hold Hold for two seconds. Meter will beep and HOLD will blink on LCD. After 6 seconds the measurement on screen will freeze automatically. Press Hold to exit this mode.

Battery Replacement

When your meter's battery is low, the battery icon will appear empty and blink for 30 seconds. "LO.bt" will display and meter will power off.

Turn dial to OFF position, disconnect test leads and remove the battery cover with magnet strap on the back of your meter. Remove old battery and replace with a standard 9V battery only. Be sure to re-insert the magnet strip before re-installing the battery cover.

Maintenance

Clean the exterior with a dry cloth. Do not use liquid.

Limited Warranty

This meter is warranted against defects in material or workmanship for one year from date of purchase. Fieldpiece will replace or repair the defective unit, at its option, subject to verification of the defect.

This warranty does not apply to defects resulting from abuse, neglect, accident, unauthorized repair, alteration, or unreasonable use of the instrument.

Any implied warranties arising from the sale of a Fieldpiece product, including but not limited to implied warranties of merchantability and fitness for a particular purpose, are limited to the above. Fieldpiece shall not be liable for loss of use of the instrument or other incidental or consequential damages, expenses, or economic loss, or for any claim of such damage, expenses, or economic loss.

State laws vary. The above limitations or exclusions may not apply to you.

Obtaining Service

Call Fieldpiece Instruments for one-price-fix-all out-of-warranty service pricing. Send check or money order for the amount quoted. Send the meter freight prepaid to Fieldpiece Instruments. Send proof of date and location of purchase for in-warranty service. The meter will be repaired or replaced, at the option of Fieldpiece, and returned via least cost transportation.

For international customers, warranty for products purchased outside of the U.S. should be handled through local distributors.