PEAKMETER MS5910 RCD/Loop Tester Instruction Manual

1. Introduction

The PEAKMETER MS5910 RCD/Loop Tester is a compact, firm, and durable instrument designed for electrical inspection and repair. It incorporates advanced technology to provide reliable and accurate measurements. This device is capable of measuring trip-out current, trip-out time, contact voltage, and loop resistance. It features data storage capabilities, PC connectivity via USB, backlight indication, auto power off, and auto/manual range selection. Additionally, it includes overheating and low battery voltage alarms to ensure safe and efficient operation.

2. Product Overview

The MS5910 RCD/Loop Tester is engineered for ease of use and portability. Its robust design ensures longevity in various working environments. Key features include:

• Measurement of Trip-Out Current and Trip-Out Time.
• Measurement of Contact Voltage and Loop Resistance.
• Storage for up to 100 groups of test results.
• Data transmission to PC via USB 2.0 interface.
• Backlight Indication for clear display in various lighting conditions.
• Automatic Power Off function to conserve battery life.
• Auto/Manual Ranging for flexible measurement.
• Overheating Alarm and Low Battery Voltage Alarm for safety and operational awareness.

Figure 2.1: Front view of the PEAKMETER MS5910 RCD/Loop Tester, highlighting its digital display and control buttons.

Figure 2.2: Angled view of the PEAKMETER MS5910, showcasing its ergonomic design and robust casing.

Figure 2.3: The MS5910 with its kickstand deployed, allowing for convenient hands-free operation.

3. Specifications

Figure 3.1: Physical dimensions of the MS5910 tester, indicating its length, width, and height.

4. Setup

4.1 Battery Installation

1. Ensure the device is powered off and disconnect all test leads.
2. Locate the battery compartment on the rear of the device.
3. Use a suitable tool to open the battery cover.
4. Insert six (6) 1.5V AA batteries, observing the correct polarity markings inside the compartment.
5. Securely close the battery cover.

Figure 4.1: Rear view of the MS5910, illustrating the battery compartment for installation of 6x AA batteries.

4.2 Connecting Test Leads

1. Identify the test lead ports on the device.
2. Connect the test lead to the appropriate ports.
3. Attach the crocodile clips to the test lead ends as required for your measurement application. Ensure a secure connection.

Figure 4.2: The MS5910 with test leads and crocodile clips connected, ready for measurement.

5. Operating Instructions

5.1 Power On/Off

Press the power button to turn the device on. The display will illuminate. To power off, press and hold the power button until the display turns off. The device also features an auto power-off function to conserve battery life after a period of inactivity.

5.2 RCD Testing

The RCD (Residual Current Device) test function measures the trip-out current and trip-out time of RCDs to ensure they operate correctly for safety. Refer to the on-screen prompts and the device's rotary switch for selecting RCD test parameters (e.g., current level, type).

5.3 Loop Resistance Testing

The loop resistance test measures the resistance of the earth fault loop. Select the LOOP function on the rotary switch. Connect the test leads to the circuit as instructed. The device will display the loop resistance value. Note that this model supports loop resistance (RL) measurement with a minimum display of 3 ohms. Measurements resulting in 1-2 ohms are not supported by this model.

5.4 Data Storage and Transfer

The MS5910 can store up to 100 groups of test results. Use the 'MEMO' button to save readings. To transfer stored data to a PC, connect the device using the provided USB cable. The included CD contains the necessary software for data retrieval and analysis.

6. Maintenance

6.1 Cleaning

Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents, as these may damage the casing or display.

6.2 Battery Replacement

When the low battery voltage alarm activates, replace all six AA batteries promptly to ensure accurate measurements and prevent data loss. Refer to Section 4.1 for battery installation instructions.

6.3 Storage

Store the device in a cool, dry place, away from direct sunlight and extreme temperatures. If storing for extended periods, remove the batteries to prevent leakage.

7. Troubleshooting

7.1 Device Does Not Power On

• Check if batteries are correctly installed with proper polarity.
• Replace old or depleted batteries with new ones.

7.2 Inaccurate Readings

• Ensure test leads are securely connected to both the device and the circuit under test.
• Verify that the correct measurement function and range are selected.
• Check battery level; low batteries can affect accuracy.

7.3 Loop Resistance Measurement Issues

If the loop resistance measurement is not displayed or seems incorrect, remember that this model supports loop resistance (RL) measurement with a minimum display of 3 ohms. Measurements resulting in 1-2 ohms are not supported and will not be displayed accurately.

8. Package Contents

Upon unpacking, please verify that all the following items are included in your package:

• 1 x RCD/LOOP Tester MS5910 (batteries not included)
• 1 x Test Lead
• 3 x Crocodile Clips (Red, Green, Black)
• 1 x USB Cable
• 1 x CD (containing software and drivers)
• 1 x Instructions Manual (this document)
• 1 x Black Carrying Bag
• 1 x Lanyard

Figure 8.1: Complete package contents of the PEAKMETER MS5910, including the tester, carrying bag, leads, clips, USB cable, and lanyard.

9. Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the contact details provided by your retailer or visit the official PEAKMETER website. Keep your purchase receipt as proof of purchase for any warranty claims.