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  User's Manual
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Features and Benefits
Competitive Advantages
What's Included?
Recommended
Specifications
What is It?
True RMS Mini Clamp Meter with Temperature and Backlight - “Big” Meter Function in a Compact Design - SC46
The SC46 True RMS Mini Clamp Meter with Temperature and Backlight packs the biggest punch in the SC40 series. With features that rival many full-sized clamp-on meters, this auto ranging DMM packs a ton of functions into a compact, easy to handle shape. It includes temperature and capacitance as well as a bright green backlight and True RMS for more accurate readings on non-sinusoidal AC waveforms. It also packs in most of the other HVAC/R ranges you use everyday. Some technicians use the SC46 as their everyday DMM, others as back-up or second meter to get more testing done in less time. This mini-clamp was deigned to make your job easier, safer, and faster no matter where you choose to rank it in your bag.
How Does it Work?
The SC46 dial is very easy to read and operate with one with one hand. Simply select the range you’re testing and get the job done. Be sure to refer to the Operator’s Manual for safety information and warnings and use safe testing practices when hooking up your multimeter to any A/C or heating system.
Selecting Ranges
For DC voltage, set the meter to the VDC parameter instead of VAC (shown below).
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Voltage
Resistance
Capacitance
Amps AC
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Temperature
Disconnect test leads from voltage before plugging in thermocouple! Insure the temperature being measured is stable. Maintain good contact between the thermocouple and what's being measured.
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Features and Benefits
The SC46 is a mini workhorse. The features and ranges included surpass those found on some full-size clamp meters.
True RMS
Digital multimeters use two different types of AC sensing. The most common is average sensing, normalized to a true RMS value of a sine wave. The other is true RMS sensing. The actual true RMS value is sensed for a wave form within the limits of the crest factor. Either sensing method will give the same results on a clean sine wave but they may differ on a non-sinusoidal waveform.
Temperature
Take ambient air or refrigeration line temperatures and more with the built-in K-type port and the included ATB1 wrap tab thermocouple. Add a wet sock (saturated tissue or a shoelace to take wet bulb temperatures. The built-in temperature junction offers great temperature compensation for more accurate and faster measurements., .
Capacitance (MFD)
Measure microfarads on motor-start and motor-run capacitors to check for degradation. Don’t forget to discharge the capacitor before testing.
400AAC
Using the amp clamp, read 0-400 amps directly on your meter with 0.1 resolution.
Wire Grabbing Jaw
The amp clamp is shaped like a jaw to make grabbing a single wire easy using only one hand.
Non-contact Voltage
With the NCV tab on the tip of the clamp close to an AC voltage, press and hold the NCV button. The NCV LED will light with an analog feel and the beeper will beep. The closer you get to AC voltage, the louder the beep. The NCV function is sensitive enough to detect 24VAC on thermostats (24V to 600V, 50Hz to 60Hz).
Hold
The HOLD button is easily pressed with your thumb while holding the mini clamp meter naturally in your hand. It holds any reading on your SC46 so you can concentrate on the test points and look at the LCD after you’ve disconnected.
And More:
- Backlight.
- Volts AC.
- Volts DC.
- Resistance (Ohms).
- Continuity.
- Rugged ABS case.
- Ergonomic shape fits naturally in your hand.
- Auto power-off (APO) to conserve battery life.
- All this in a meter under 8” tall.
Competitive Advantages
The SC46 has features and benefits that rival many full-size clamp-on multimeters plus easy to use built-in safety features they don’t include. The built-in non-contact voltage sensor (NCV) sensor tells you if a line is hot or not before you work on it. The continuity beeper tells you if a circuit is open or closed. And the hold button on the side of the SC46 allows you to concentrate on the test point, hold the reading and then look at the display after you’ve disconnected.
What's Included
- True RMS Mini Clamp Meter with Temperature and Backlight - SC46
- Vinyl Test Leads
- One (1) Wrap-Tab K-type Thermocouple - ATB1
- Mini Clamp-On Meter Case - ANC4
- Two (2) 1.5V “AAA” batteries (installed)
- Operator’s manual
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Recommended Accessories and Replacement Parts
Technicians who like the SC46 may also enjoy these instruments and accessories:
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True RMS Clamp Meter with Temperature, Capacitance and Backlight - SC77
The SC77 is one of our most popular digital multimeters for a reason. It has virtually every parameter for electrical and thermal HVAC/R testing in one meter. This auto ranger includes a host of safety features including a high-voltage LED and beeper, a continuity warning, push button non-contact voltage (NCV), a lead holder with detachable leads and alligator probe tips for easy one-handed testing. As far as ranges go, it has temperature, capacitance, microamps DC for flame diode tests, and everyday electrical ranges for HVAC/R. Not to mention technicians tell us it one of the most durable meters in the industry. Rivaled only by our stick meters, the SC77 is also one of their top picks from Fieldpiece.
Read More..
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Expandable True RMS Stick Multimeter with Backlight - HS36
Our top of the line True RMS Stick Meter, the HS36 includes the ranges you use everyday for HVAC/R field service plus includes a bright blue backlight and True RMS. Like the rest of the HS30 series, the HS36 comes equipped with a magnetic hanger, along with detachable silicone test leads and alligator clip probe tips for remote and easy one-handed testing, as well as the full set of built-in safety features. This auto-ranging stick meter also includes a bar graph on the LCD for an analog feel. Technicians who prefer our expandable stick meters tell us this is the best digital multimeter for HVAC/R field Service.
Read More..
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Deluxe Silicone Test Lead Kit - ADK7
The ADK7 deluxe silicone lead is the optimal way to test most electrical parameters you run into during field service. The kit includes the ADSL2 silicone leads and ASA2 alligator leads plus our all new RCT2 "Molex"-style probe tips. HVAC techs often remove the black probe tip (common) and insert the black alligator lead for an extended reach from ground. When used with our stick meters, the Volts (red) probe tip is inserted into the top of the meter for easy one-handed testing. Use both alligator extension to perform “no-hands” tests. Silicone test leads deliver better performance in temperature extremes than test leads insulated with vinyl.
Read More..
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Large Briefcase-Style Instrument Bag - ANC3
The ANC3 Large Briefcase-Style Instrument Bag is our top of the line instrument case. Combined with our modularly expandable instruments and accessories, the ANC3 can haul a service truck full of tools to your job, over your shoulder. It has 14 pockets in all. It holds most any combination of your Fieldpiece gear: 3 meters and 10 accessory head instruments with room for plenty more, or, put in 6 standalones and their accessories, 2 meters and more. The combinations are almost endless. One thing’s for sure, you can fit the test instruments you need to do the whole job easier, better and faster with the ANC3 over your shoulder. Features include rugged nylon construction, padding, durable pockets inside and out, a rugged zippers and a shoulder strap. Comes standard with our big Fieldpacks and doubles as a great laptop briefcase.
Read More..
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Specifications
TECHNICAL SPECIFICATIONS
Display: 3¾ digit liquid crystal display (LCD) with a maximum reading of 3999.
Range: Manual ranging mode, hold button for 2 seconds to return to autoranging mode.
Overrange: "OL" or “-OL” mark indication.
Auto power off: 10 minutes.
Operating environment: 32 to 122°F (0 to 50°C), at <70% R.H.
Storage temperature: -4 to 140°F (-20 to 60°C), @ <80% R.H. with batteries removed.
Accuracy: Specifications good in ambient conditions of 74°F ±8°F (23°C ±4°C), <75% relative humidity.
Temperature coefficient: 0.1×(specified accuracy) per °F/°C; 32 to 66°F (0 to 19°C); 82 to 122°F(28 to 50°C).
Altitude: 6561.7 feet (2000m).
Power: Two AAA 1.5V batteries.
Battery life: 300 hours typical with alkaline
Accessories: One pair test leads, (2) 1.5V AAA batteries (installed), wrap tab k-type thermocouple, carrying case and operating instructions.
Safety: Designed to meet IEC61010-1 (EN61010-1) and IEC61010-2-032 (EN61010-2-032), CATIII 300V, class II and pollution degree 2 indoor use comply with CE, C-tick certified.
Temperature
Range: -30 to 400°F (-34 to 204°C)
Resolution: 0.1°
Accuracy: ±1°F (32 to 120°F); ±0.5°C (0 to 49°C),
±1% + 1.5°F (-4 to 400°F);
±1% + 1°C (-20 to 204°C),
±2% + 4°F (-30 to -4°F);
±2% + 2°C (-34 to -20°C)
Sensor type: K-type thermocouple
Capacitance
Range: 4μF, 40μF, 400μF, 4mF 4.000mF = 4000μF
Resolution: 1.0nF
Accuracy: ±(3% rdg + 10 dgts) on 4μF
±(3% rdg + 5 dgts) on 40μF to 400μF
±(5% rdg + 20 dgts) on 4mF (4000μF)
Minimum input range: >100nF
Safety: “dsc” symbol on LCD indicates that the capacitor must be discharged before testing.
DC volts
Ranges: 400mV, 4V, 40V, 400V, 600V
Resolution: 0.1mV
Accuracy: ±(0.5% rdg + 2 dgt)
Input impedance:
400mV > 100MΩ
4V = 10MΩ
40V~600V = 9.1MΩ
Transient protection: 6kV for 10μ sec
AC volts (50Hz - 500Hz)
Ranges: 4V, 40V, 400V, 600V
Resolution: 1mV
Accuracy: ±(1.2% rdg + 5 dgts), ±(1.5% rdg + 5 dgts) on 600V range
Input impedance: 4V = 10MΩ, 40V~600V = 9.1MΩ
Resistance
Ranges: 400Ω
Resolution: 1Ω
Accuracy: ±(1.0% rdg + 4 dgts)
Open circuit volts: -1.2VDC
AC Current (50Hz - 60Hz)
Ranges: 40A, 400A, Resolution: 0.01A
Accuracy: ±(2.0% rdg + 6 dgts)
Continuity
Audible indication: Less than 25Ω
Response time: 500ms
Overload Protection
VAC/DC - 600VDC or AC RMS
AAC - 400AAC
Resistance - 500VDC or AC RMS
Continuity - 500VDC or AC RMS
Capacitance - 500VDC or AC RMS
Temperature - 60VDC or 30AC RMS
Field Temperature calibration 
For accuracies of ±1°, calibrate 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.
- Select 400°F/C range and connect thermocouple.
- Remove back case (2 screws on back, one near clamp, other near base). Leave battery cover attached so batteries stay within back case.
- Stabilize a large cup of ice water.
- Immerse the thermocouple tip and let it stabilize.
- To change the temperature scale to °C, close the jumper just below VR5.
- Adjust VR5 calibration pot with a small screwdriver to get within 0.1° of 32°F (0°C). Each 1/4 turn should adjust the temperature about 3°, no more than 10° total. There’s no need rotating the screw more than 360°; doing so gets you back to where you started.
- Attach case without screws to preview the temperature and continue until you have it dialed in.
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Display: 3 1/2 digit liquid crystal display (LCD) with maximum reading of 1999.
Overrange: (OL) or (-OL) is displayed.
Low battery indication: The battery symbol is displayed when the battery voltage drops below the operating level.
Measurement rate: 2.5 times per second, nominal.
Operating Environment: 0°C to 40°C at < 70% relative humidity.
Storage Temperature: -20°C to 60°C, 0 to 80% R.H. with battery removed from meter.
Auto power off: 15 seconds approx.
Standby consume current: <10μA
Battery: 4 pcs 1.5V (AAA size) UM-4 R03.
Battery Life: 4 hours (continuity) typical with alkaline battery (@20ÌÙ range test 10ÌÙ resistor).
Dimensions: 170mm(H) x 44mm(W) x 40mm(D).
Weight: 160g including batteries.
ELECTRICAL
Range: 20MW, 2000 MW.
Resolution: 10K W on 20MW range, 1 MW on 2000 MW range.
Accuracy:
20 MW range: ±(2%rdg + 2dgts)
2000 MW range: <500ÌÙ ±(4%rdg + 2dgts)
>500 MW ±(5%rdg + 2dgts)
Rated voltage: DC-DC converter to 1000VDC
Accuracy temperature: 23°C ± 5°C less than 70%RH
Temperature Coefficient: 0.1X (specified accuracy)/°C (28°C)
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