400A Amp Clamp Accessory - ACH4

The ACH4 enables technicians to measure up to 400A AC current on most multimeters with industry standard jacks.User's Manual

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Features and Benefits

Competitive Advantages

What's Included?

Recommended

Specifications

 

 

 

 

What is It?

The ACH4 current clamp is a small size accessory head for quickly reading up to 400 AC amps. The new claw feature at the top of the clamp allows for quickly picking out the wire you need to measure and isolating it in the clamp. Once the current carrying conductor is isolated, the amperage is converted to mVAC for reading directly on the meter. The ACH4 works with the Fieldpiece “Stick” meter, EHDL1 Electronic Handle, DL3 Data Logger, the HG2 HVAC Guide® System Analyzer or any other digital multimeter (with mVAC range) connected by Fieldpiece ADLS2 detachable silicone leads or AHDL1 handle adapter.

 

How Does it Work?

The ACH4 is a very accurate current clamp that slides easily on the top of our modular stick DMMs and instruments, electronic handles, and connects to other DMMs using detachable test leads (model ADLS2). It converts 1AAC to 1mVAC on your meter.  In other words, when you’re measuring 8.5 AAC your display will read 8.5 on the mVAC range on your meter. Isolate the wire you want to measure amperage on quickly using the wire grabbing jaw. While the clamp is very accurate, there is a prime location for the most accurate reading possible. Try to place the center of the conductor going through the clamp as shown.


Setup and Use
  1. Connect the ACH4 to Volts and COM jacks. (Polarity is not important.)
  2. Set the multimeter to mVAC range.
  3. Use the claw shape to pick out the conductor you need to measure. Snap the jaws of the ACH4 around one of the current-carrying conductors. Make sure the jaws are tightly clamped.
  4. For best accuracy, the wire should be centered according to the arrow indents on the back of the clamp.
  5. Directly read the current value (in amperes) indicated on the display.
  6. If meter displays overload, change range to next highest (2000mVAC or 2VAC. For 2VAC range, multiply reading by 1000.)

 

Features and Benefits

The ACH4 AC Current Clamp Accessory offers several features and benefits to field technicians:
  • Works with any Fieldpiece expandable DMM, instrument, handle or any DMM with mVDC ranges and industry standard jacks.
  • Remote the amp clamp for hard to reach areas using our deluxe silicone leads with detachable probe tips (model ADLS2).
  • Angled jaw opens to 1.8 inches and makes singling out a wire fast and easy.

Competitive Advantages

The modular design of the ACH4 gives it a distinct advantage over other ammeters in the field.  Remoting the amp clamp with our detachable test leads allows you to measure amps with the blower door closed.  You get more accurate amp draw readings with the door closed, because the system is sealed and running under normal conditions.

What's Included


  • 400A Amp Clamp Accessory - ACH4
  • Operator’s manual

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Recommended Accessories and Replacement Parts

Technicians who like the ACH4 may also enjoy these instruments and accessories:

 

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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.

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Electronic Handle - EHDL1

Convert any Fieldpiece accessory head instrument into a standalone with the Electronic Handle model EHDL1. It features a MAX/MIN button to record the highest and lowest reading. And a HOLD button to hold the reading. The EHDL1 has a 200 and 2000 mVAC for use with our Amp Clamp, model ACH4 and the 200 and 2000mVDC range is for use with the rest of our accessory head instruments.

 

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Classic Style Digital Multimeter with Temperature - LT17A

The LT17A is the classic style meter the boss calls the biggest “Bang for the Buck”.  He’s got a point.  This manual ranger covers most of the parameters and ranges you need for most HVAC/R applications.  The LT17A meter measures current, resistance, voltage, capacitance, frequency, continuity, and temperature. Test leads store in the meter body and, with the probe tips removed, connect the LT17A to Fieldpiece accessory heads. The body is made out of durable ABS plastic and comes with a bright blue backlight for poorly lit test areas. Get great accuracy using the included k-type thermocouple and an easily accessible temperature calibration pot.

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Deluxe Meter Case - ANC1

The Deluxe Meter Case, model ANC1, easily holds 1 meter and 2 accessory head instruments. Features include rugged nylon construction, padding, durable pockets inside and out, a rugged double zipper and a shoulder strap. The ANC1 comes standard with our HS30 Series Stick Multimeters.

 

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Specifications

TECHNICAL SPECIFICATIONS
Current range: 1AAC to 400AAC rms
Conversion rate: 1AAC to 1mVAC
Frequency: 50Hz to 60Hz
Operating temperature: 32°F to 122°F
Storage temperature: -4°F to 140°F
Temperature coefficient: 0.1 x (specified accuracy) per °F. (32°F to 64°F, 82°F to 122°F).
Altitude: 6561.7 Feet (2000m).
Resolution: 0.1A
Accuracy: ±(1.5%rdg + 0.2A), 1 to 20AAC; ±(2.5%rdg + 0.3A), 20 to 100AAC;  ±(3.5%rdg + 0.5A), 100 to 400AAC                    
Maximum conductor diameter: 1.18 in. (30mm)
Accessories: operator’s manual
Safety: Designed to meet IE C61010-1 (EN61010-1) and IEC61010-2-032 (EN61010-2-032),CATIII 300V, class 2 and pollution degree indoor use comply with CE.

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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)