Mastech MS5902RTB - User Manual

MS5902RTB
Circuit Breaker Finder
Sock et Tester Instruction
HYS006750
MS5902R

Summary

MASTECH MS5902 RTB Circuit Breaker Finder Socket Tester Instruction

Features

Lists the key characteristics and capabilities of the MS5902 device, including voltage compatibility and operating temperature.

Operation: Locating a Circuit Breaker or Fuse

Step-by-step instructions for using the device to find the correct circuit breaker or fuse by testing outlets and scanning panels.

Test Socket

Instructions on how to perform a socket test using the MS5902-T component.

Maintenance

Guidance on cleaning the device and replacing the battery in the MS5902-R.

Overview

1. Function Description
2. Usage Features
3. Maintenance Features

The MASTECH MS5902RTB is a comprehensive Circuit Breaker Finder and Socket Tester designed to simplify the often frustrating task of identifying the correct circuit breaker or fuse for an AC outlet or lighting fixture. This device eliminates the annoyance of searching for the right breaker, providing a quick and efficient solution for both professional electricians and DIY enthusiasts.

Function Description

The primary function of the MS5902RTB is twofold: to locate the correct circuit breaker or fuse and to test the condition of a socket. It operates by utilizing a transmitter (MS5902-T) and a receiver (MS5902-R).

When used as a Circuit Breaker Finder, the MS5902-T transmitter is plugged into the receptacle or lighting fixture whose breaker needs to be identified. The MS5902-R receiver is then used to scan the circuit breaker panel. The receiver is designed to detect the signal emitted by the transmitter, guiding the user to the precise breaker that controls the power to the connected outlet. This process is made intuitive through a combination of audible beeps and visual LED indicators on the receiver.

As a Socket Tester, the MS5902-T transmitter itself provides immediate feedback on the wiring condition of the socket it's plugged into. By observing the LED indicators on the transmitter, users can quickly identify common wiring faults such as correct wiring, missing earth, live earth reverse, live neutral reverse, or missing neutral. This feature is crucial for ensuring electrical safety and proper installation.

The device is engineered for automatic and quick identification of breakers and fuses, significantly reducing the time and effort typically involved in such tasks. It also provides a rapid and easy way to identify various conditions of a circuit socket, enhancing safety and troubleshooting capabilities.

Usage Features

The MS5902RTB is designed for ease of use, even in challenging environments. A key feature is its ability to operate in dark surroundings, thanks to a built-in flashlight on the receiver (MS5902-R). This is particularly useful when working in dimly lit breaker panels or basements.

For locating a circuit breaker or fuse, the process involves a few straightforward steps:

1. Preparation of the Transmitter: Ensure the pillar on the MS5902-T is set to the left position, indicating its use for breaker finding.
2. Connecting the Transmitter: Plug the MS5902-T into the target receptacle. If dealing with a candescent light fixture, a socket adapter (purchased separately) should be used. It's crucial to ensure the switch for the fixture is OFF before plugging in the adapter and the MS5902-T, then turn the switch ON.
3. Scanning the Breaker Panel: Proceed to the circuit breaker panel box. Turn on the MS5902-R receiver; a red LED will illuminate, indicating it's active.
4. Identifying the Breaker: Place the chapiter (the sensing end) of the MS5902-R directly onto each circuit breaker or fuse.
5. Refining the Search: Slide the chapiter down each breaker along both sides of the panel. The MS5902-R will emit frequent beeps, with the frequency indicating the relative signal strength.
6. Pinpointing the Correct Breaker: Move the MS5902-R down each breaker once more. On the third pass, the MS5902-R will beep, the red LED will quench, and a green LED will light up only at the circuit breaker powering the MS5902-T. This precise indication ensures accurate identification.
7. Verification: To confirm the correct breaker, push it to the OFF position. Check that the LED on the MS5902-T in the outlet turns off. This final step confirms that the correct breaker or fuse has been found.

For testing a socket, the procedure is even simpler:

1. Preparation of the Transmitter: Set the pillar on the MS5902-T to the right position, indicating its use for socket testing.
2. Connecting the Transmitter: Plug the MS5902-T into the socket to be tested.
3. Interpreting Results: Observe the LED indicators on the MS5902-T. The nameplate on the device provides a clear guide to interpret the LED patterns, indicating conditions such as correct wiring, missing earth, live earth reverse, live neutral reverse, or missing neutral.

The device is designed to work with specific AC voltages: the MS5902-T operates on 220V AC, while the MS5902-TB (a variant) works on 110V AC. It has an operating temperature range of 0 to 50°C, making it suitable for a variety of indoor environments.

Maintenance Features

Maintaining the MS5902RTB is straightforward, focusing on cleanliness and battery replacement to ensure its longevity and accurate performance.

1. Cleaning: The device should be kept clean by wiping it with a dry cloth. This prevents dust and debris from accumulating, which could potentially affect its operation or the clarity of its indicators.
2. Battery Replacement: The MS5902-R receiver is powered by a 9V battery. When the yellow LED on the MS5902-R illuminates, it indicates that the battery is low and needs replacement. To replace the battery:
   • Unscrew the relevant fasteners on the receiver.
   • Carefully remove the cover.
   • Insert a new 9V battery, ensuring it is correctly oriented.
   • Replace the cover and secure it by screwing it back into place. This ensures the MS5902-R remains well-balanced and fully functional.

By following these simple maintenance steps, users can ensure the MASTECH MS5902RTB continues to provide reliable and accurate performance for all their circuit breaker finding and socket testing needs.

Mastech MS5902RTB Specifications

General

Category	Test Equipment
Model	MS5902RTB
Display	LCD
DC Voltage Range	0-600V
AC Voltage Range	0-600V
DC Current Range	0-10A
AC Current Range	0-10A
Resistance Range	0-20MΩ
Battery	9V
GFCI Test	Yes
Outlet Wiring Check	Yes
Safety Rating	CAT III 600V
Power Supply	Battery
Type	Multimeter