Amprobe RS-1007 PRO Analog Clamp Meter User Manual

1. Introduction

The Amprobe RS-1007 PRO is an average-sensing, manual-ranging analog clamp meter designed for measuring alternating current (AC), AC voltage, and resistance. This instrument is suitable for electrical testing and heating, ventilation, and air-conditioning (HVAC) applications, particularly in environments where extreme temperatures might affect digital meters. Its analog display provides readings via a moving needle on a calibrated scale.

Key features include:

• Measures AC current up to 1,000 Amperes.
• Measures AC voltage up to 600 Volts.
• Measures resistance up to 1,000 Ohms.
• Transformer clamp with a 1.88-inch (47 mm) jaw opening for non-contact current measurement.
• Needle lock function to secure readings.
• Broader operating temperature range compared to digital multimeters.
• Meets IEC 61010 safety standard for CAT IV 600V installations.

2. Safety Information

WARNING: To avoid electric shock or personal injury, read, understand, and follow all safety instructions and operating procedures before using this meter.

• Always adhere to local and national safety codes.
• Do not use the meter if it appears damaged or if the test leads are damaged.
• Ensure the meter is set to the correct function and range before making measurements.
• Do not exceed the maximum input limits for any function.
• Use caution when working with voltages above 30V AC RMS, 42V peak, or 60V DC. These voltages pose a shock hazard.
• Always connect the common (COM) test lead first and disconnect it last.
• The meter is rated for CAT IV 600V installations, which covers measurements at the source of the low-voltage supply.
• A finger guard on the body of the meter helps protect fingers from shock.

3. Product Overview

Familiarize yourself with the components of your Amprobe RS-1007 PRO Analog Clamp Meter.

Figure 1: Amprobe RS-1007 PRO Analog Clamp Meter
This image displays the Amprobe RS-1007 PRO Analog Clamp Meter. Key features visible include the yellow clamp jaws at the top, the red main body, and the gray control panel. The control panel features an analog scale for readings, a 'LOCK' button, 'VA ZERO' and 'Ω ZERO' adjustment knobs, and input terminals for test leads labeled 'COM', 'A', and 'VΩ'. The meter also shows 'CAT IV 600V' and '1000A' markings on the jaws.

Meter Components:

• Clamp Jaws: Used for non-contact measurement of AC current.
• Jaw Opening Lever: Opens and closes the clamp jaws.
• Analog Display Scale: Shows measurement readings via a moving needle.
• Needle Lock Button: Secures the needle position for reading retention.
• VA ZERO Knob: Adjusts the needle to zero for voltage/current measurements.
• Ω ZERO Knob: Adjusts the needle to zero for resistance measurements.
• Function/Range Selector Switch: Selects the measurement type (AC A, AC V, Ω) and range.
• Input Terminals:
• COM: Common input terminal for all measurements.
• VΩ: Input terminal for voltage and resistance measurements.
• A: Input terminal for current measurements (when using test leads, though primary current is via clamp).
• Finger Guard: Provides protection against accidental contact with live circuits.

4. Setup

4.1 Battery Installation (for Resistance Measurement)

The meter requires one 1.5V AAA battery (ANSI/NEDA-24A or IEC LR03) for resistance measurements. Current and voltage measurements do not require a battery.

1. Locate the battery compartment cover on the back of the meter.
2. Use a screwdriver to open the compartment.
3. Insert one 1.5V AAA battery, observing correct polarity.
4. Replace the battery compartment cover and secure it.

4.2 Fuse Installation (for Resistance Measurement)

A 0.5 amp/1,000V fast-blow fuse is installed for resistance measurement protection.

1. The fuse is typically pre-installed. If replacement is necessary, refer to the battery compartment access.
2. Ensure the replacement fuse matches the specified rating (0.5A/1000V).

4.3 Test Lead Connection

For voltage and resistance measurements, connect the provided test leads:

• Insert the black test lead into the COM input terminal.
• Insert the red test lead into the VΩ input terminal.

5. Operating Instructions

The Amprobe RS-1007 PRO is a manual-ranging meter, requiring the user to select the appropriate range for accurate measurements.

5.1 Measuring AC Current (Clamp Function)

This method measures current without breaking the circuit.

1. Set the meter's function/range selector to the desired AC current range (e.g., 1000A).
2. Press the jaw opening lever to open the clamp jaws.
3. Enclose a single conductor (not a bundle of wires) within the clamp jaws. Ensure the jaws are fully closed.
4. Read the AC current value on the analog display scale.
5. If the needle goes off scale, select a higher range. If the reading is too low for accuracy, select a lower range if available.
6. To hold the reading, press the Needle Lock button. Release to allow the needle to move freely again.

5.2 Measuring AC Voltage

Use the test leads for voltage measurements.

1. Connect the test leads as described in Section 4.3 (black to COM, red to VΩ).
2. Set the meter's function/range selector to the desired AC voltage range (e.g., 600V AC).
3. Before connecting to the circuit, use the VA ZERO knob to ensure the needle is at zero.
4. Carefully connect the test probes in parallel across the circuit or component to be measured.
5. Read the AC voltage value on the analog display scale.
6. If the needle goes off scale, select a higher range. If the reading is too low for accuracy, select a lower range if available.

5.3 Measuring Resistance and Continuity

Resistance measurements require the installed 1.5V AAA battery.

1. Connect the test leads as described in Section 4.3 (black to COM, red to VΩ).
2. Set the meter's function/range selector to the desired resistance range (e.g., Ω).
3. Short the test leads together (touch the red and black probes).
4. Use the Ω ZERO knob to adjust the needle to zero on the resistance scale.
5. Disconnect power from the circuit or component to be measured.
6. Connect the test probes across the component.
7. Read the resistance value on the analog display scale. A reading of zero or near zero indicates continuity.
8. If the needle does not move, the resistance may be too high for the selected range, or the circuit is open.

6. Maintenance

6.1 Cleaning

Wipe the meter with a damp cloth and mild detergent. Do not use abrasives or solvents. Keep the input terminals free of dirt and moisture.

6.2 Battery Replacement

If the meter fails to zero for resistance measurements, or if the resistance readings become inaccurate, replace the 1.5V AAA battery as described in Section 4.1.

6.3 Fuse Replacement

If the resistance function ceases to operate, the 0.5 amp/1,000V fast-blow fuse may need replacement. Ensure the meter is disconnected from all power sources before opening the case to replace the fuse. Use only a fuse of the specified type and rating.

6.4 Storage

When not in use, store the meter in its soft vinyl carrying case in a dry, dust-free environment. If storing for extended periods, remove the battery to prevent leakage.

7. Troubleshooting

• No reading or inaccurate reading:
  • Check if the meter is set to the correct function and range.
  • Ensure test leads are properly connected and not damaged.
  • For current measurements, ensure only a single conductor is within the clamp jaws and they are fully closed.
  • For resistance measurements, check the 1.5V AAA battery and fuse.
  • Ensure the circuit under test is de-energized for resistance measurements.
• Needle does not zero:
  • Use the VA ZERO or Ω ZERO knob to adjust the needle.
  • If unable to zero for resistance, replace the 1.5V AAA battery.

8. Specifications

Note: Some dimension and weight specifications provided in the source data appear to conflict. Please refer to the product packaging for the most accurate physical specifications.

9. Warranty and Support

Amprobe manufactures electrical testing equipment. For product support, service, or warranty information, please contact Amprobe directly or visit their official website. The meter comes with a soft vinyl carrying case and instructions.

Visit the official Amprobe Store for more information: Amprobe Store on Amazon