UNI-T UT25CL User Manual
  1. Manuals
  2. Brands
  3. UNI-T Manuals
  4. Security Sensors
  5. UT25CL
  6. User manual
UNI-T UT25CL User Manual

UNI-T UT25CL User Manual

Cable locator
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
UT25CL User Manual
UT25CL
Cable Locator
User Manual
1

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the UT25CL and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for UNI-T UT25CL

Summary of Contents for UNI-T UT25CL

  • Page 1 UT25CL User Manual UT25CL Cable Locator User Manual...
  • Page 2 UT25CL User Manual Preface Thank you for purchasing this brand new product. In order to use this product safely and correctly, please read this manual thoroughly, especially the Safety Instructions part. After reading this manual, it is recommended to keep the manual at an easily accessible place, preferably close to the device, for future reference.

  • Page 3: Table Of Contents

    7.1.2 Setting of UT25CL-T transmitter ..............19 7.1.3 Use of UT25CL-R receiver (In automatic scanning mode)......20 7.1.4 Use of UT25CL-R receiver (In manual scanning mode) ......21 7.2 Identify Circuit Breaker and Fuse (Energized and Deenergized) ......22 7.2.1 Connect test leads ..................23 7.2.2 Setting of UT25CL-T transmitter ..............
  • Page 4 8.9 Draw a Circuit Diagram Using the Connection of Test Leads ......32 8.10 Track the Circuit Breaker in the System with Illumination Dimmer ....32 External Voltage Measurement and ELV Function (UT25CL-T) ........ 33 9.1 External Voltage Measurement ................33 9.2 ELV Function ......................

  • Page 5: Overview

    UT25CL User Manual 1. Overview UT25CL Handheld Cable Locator can be used to detect the path of low-voltage cables buried in ground (such as cabling inside wall); test and diagnose opens, shorts and other problems occurring at cabling; and detect if the tested cable is energized. The transmitter can display corresponding voltages (voltage of energized cable: ≥8V), and the receiver can simultaneously display the signal...

  • Page 6: Safety Instructions And Precautions

    UT25CL User Manual Conform to European Union UKCA certification mark standards Do not place equipment and its accessories in the trash. Please dispose properly according to the local regulation. Applicable to test and measure the circuit connected with the power CAT III distribution part of building’s low-voltage MAINS installation.
  • Page 7 UT25CL User Manual • Set the Meter at maximum range if the measured range is unknown. The measured signal is not allowed to exceed the specified extreme limit, to prevent electric shock or damage to the Meter. • Do not apply overrated voltage or current between terminals, or between any terminal and earth ground.
  • Page 8 2) Use only fuse with designated type and current rating. Do not use wrong or repaired fuse or connect the fuse block, otherwise it may cause fire. Note: It is normal that weak spark may occur momentarily when UT25CL-T is used as a voltage meter to measure external voltage.

  • Page 9: Transmitter Components

    UT25CL User Manual 4. Transmitter Components 4.1 Transmitter Appearance 4.2 Descriptions of Components Input/output terminal: Used to connect with multiple accessories (i.e., AC polarized plug) for signal measurement/output. LCD screen with backlight. ELV indicator light: If the voltage of the input port exceeds the specified voltage when the transmitter is powered off, the LED lights up red and its brightness increases as the voltage rises.

  • Page 10: Descriptions Of Display

    UT25CL User Manual . The default level is “ ”. Backlight/Mute button: Short press to turn on/off the backlight; long press to turn on/off the mute mode. LEVEL button (Enabled when transmission is stopped): Short press to enter/exit the LEVEL setting.

  • Page 11: Receiver Components

    UT25CL User Manual This is the code symbol. It flashes when setting code. This symbol denotes the level of the transmission power. It flashes when setting the power level. This is the current power level. When setting the power, the current set power level and ) will be displayed.

  • Page 12: Description Of Display

    UT25CL User Manual Backlight/Mute button: Short press to turn on/off the backlight; long press to turn on/off the mute mode. Flashlight button: Short press to turn on/off the flashlight. NCV button: 1). Cable tracking mode is the default mode after boot-up. Short press this button to switch to NCV mode.

  • Page 13: Setting

    UT25CL User Manual 6. Setting 6.1 UT25CL-T Setting 6.1.1 CODE Setting 1. The default code is 5 when the transmitter is powered on. 2. The transmitter is in power-on state by default (Transmission is not started by the transmitter), short press the START/STOP button to stop transmission when transmission is started by the transmitter.

  • Page 14: Buttons Setting

    UT25CL User Manual transmitter. When the LEVEL button is short pressed, the LEVEL symbol flashes for 0.5s, as shown in Figure 6.1.2a. Figure 6.1.2a 3. When the LEVEL symbol flashes, short press the Up/Down button to set the level to , or .

  • Page 15: Ut25Cl-R Setting

    3. In MANUAL mode, short press the DOWN button to adjust the sensitivity from 8 to 0. In AUTO mode, short press the DOWN button to switch to MANUAL mode. Note: The LEVEL and CODE shown on UT25CL-R are data sent from UT25CL-T. These data cannot be adjusted on UT25CL-R.

  • Page 16: 3Ncv Mode Switching

    UT25CL User Manual 6.2.3 NCV Mode Switching： 1. The receiver is in power-on state: In AUTO or MANUAL mode (in cable tracking mode), short press the NCV button to switch to NCV mode. In NCV mode, short press the NCV button to switch to AUTO mode (in cable tracking mode).
  • Page 17 UT25CL User Manual field generated around the conductor by the signal produced by the transmitter (the electromagnetic field is detected by the receiver). The clearer the signal, the easier the cable can be tracked. Connect the transmitter with two adjacent conductors of the same circuit (i.e., the live and neutral wires of...

  • Page 18: Track Energized And Deenergized Cables

    UT25CL User Manual Auto Manual 7.1 Track Energized and Deenergized Cables 7.1.1 Connect test leads to the transmitter 1. Connect the black and red test leads to the transmitter (No need to consider the polarity). 2. Connect the outlet convertor to the outlet, and connect the red test lead to the energized live wire (at the load side of the system).

  • Page 19: Setting Of Ut25Cl-T Transmitter

    Applications”. For the tracking method, please see the Section 8.1 “Track the Cable of GFCI- Protected Circuit” 7.1.2 Setting of UT25CL-T transmitter 1. Power on the transmitter. 2. Test and confirm if the connection of test leads is correct. For circuit with voltage over 30 V AC/DC, the warning symbol will light up.

  • Page 20: Use Of Ut25Cl-R Receiver (In Automatic Scanning Mode)

    Figure 7.1.2d Transmission Strength II Figure 7.1.2e Transmission Strength I 7.1.3 Use of UT25CL-R receiver (In automatic scanning mode) The automatic scanning mode is used to detect the conductor at a relatively far distance (between the conductor and the receiver). This mode can automatically adjust the reception sensitivity according to the current signal strength, to prevent the signal from being saturated or too weak.

  • Page 21: Use Of Ut25Cl-R Receiver (In Manual Scanning Mode)

    Figure 7.1.3b No Signal Detected Figure 7.1.3c Signal Detected 7.1.4 Use of UT25CL-R receiver (In manual scanning mode) Use manual tracking mode to locate cable or fault accurately. The receiver indicates the signal strength through 3-digit reading, analog indication and sound.

  • Page 22: Identify Circuit Breaker And Fuse (Energized And Deenergized)

    UT25CL User Manual or I (For specific setting, please see “6.1 UT25CL-T Setting”) Figure 7.1.4b Signal Detected 3. To obtain a best effect when tracking energized conductor, please align the dot screen printing (on the top of the sensor) to the direction of the conductor, as shown in Figures 7.1.4a and 7.1.4b.

  • Page 23: Connect Test Leads

    4. Connect the black test lead to independent grounding, i.e., metal structure of building, metal water pipe, or grounding wire of independent circuit. 7.2.2 Use of UT25CL-T transmitter 1. Power on the transmitter. 2. Test and confirm if the connection of test leads is correct. For circuit with voltage over 30 V AC/DC, the warning symbol will light up;...

  • Page 24: Use Of Ut25Cl-R Receiver

    Relatively-low signal level also helps to prevent the receiver from being oversaturated due to large covering area of strong signal. 7.2.3 Use of UT25CL-R receiver 1. Power on the receiver and then short press the AUTO/MANUAL button to switch to manual mode, as shown in Figure 7.2.3a.

  • Page 25: Ncv Mode And Passive Tracking

    UT25CL User Manual accuracy from being affected by signal with over-high strength. As shown in Figure 7.2.3c. Figure 7.2.3c Signal Detected Note: Since the designs, heights and internal contact structures of the circuit breakers are different, the accuracy of identifying circuit breaker may be affected. To obtain a reliable result, please open the circuit breaker panel to scan the conductor instead of the circuit breaker.

  • Page 26: Special Applications

    8. Special Applications 8.1 Track the Cable of GFCI-Protected Circuit When connecting UT25CL-T transmitter to GFCI-protected circuit, if connect the transmitter to the energized GFCI-protected circuit by the use of independent grounding, maybe trigger GFCI protection. For GFCI-protected circuit, please use the methods below: For deenergized GFCI-protected outlet which will not be triggered, please connect the test lead to the contact point of the outlet, in deenergized sensor mode.

  • Page 27: Identify Shorts

    UT25CL User Manual Alternatively, connect two UT25CL-T transmitters (set different codes for them) to both ends of the cable respectively. If the signal is in the same location, the code is updated to the other receiver after the receiver passes above the breakpoint, then the location of the fault is found. As shown in Figures 8.2.1a and 8.2.1b.

  • Page 28: Track Cables In Metal Pipe

    UT25CL User Manual 3. Set the receiver to automatic or manual scanning mode. Track the cable to identify the fault until the signal is stopped. To verify the location of the fault, please move the transmitter to the other end of the cable to perform tracking.

  • Page 29: Track Shielded Cables

    UT25CL User Manual 8.5 Track Shielded Cables If following the standard instructions, the receiver cannot track the signal of shielded cable. To track the shielded cable effectively, please perform according to the following steps. 8.5.1 Ground the far end of shielded cable 1.

  • Page 30: Track Underground Wire

    Figure 8.5.2a Track shielded cable (with its far end disconnected from grounding) 8.6 Track Underground Wire UT25CL can track energized or deenergized cables buried in ground, the tracking method is same as that of locating the cable on wall or ground. Please perform tracking by using independent grounding.

  • Page 31: Track Low-Voltage Wire And Data Cable

    UT25CL User Manual 8.7 Track Low-Voltage Wire and Data Cable UT25CL can track data cable, video cable, and thermostat cable (For information about tracking shielded data cable, please see “8.5 Track Shielded Cable”). Track data cable, video cable, and thermostat cable: 1.

  • Page 32: Draw A Circuit Diagram Using The Connection Of Test Leads

    UT25CL User Manual 8.9 Draw a Circuit Diagram Using the Connection of Test Leads For use of the connection of test leads, drawing a circuit diagram is applicable to deenergized circuits only. 1. Set the circuit breaker to OFF (switch off) position.

  • Page 33: External Voltage Measurement And Elv Function (Ut25Cl-T)

    UT25CL User Manual 9. External Voltage Measurement and ELV Function (UT25CL-T) 9.1 External Voltage Measurement 1. When the transmitter is in power-on state. Regardless of whether the transmitter transmits signal or not (Some sources will be interfered when transmitting signal. If voltage source is sensitive to the interference, please stop transmitting signal immediately).

  • Page 34: Elv Function

    UT25CL User Manual 7. When the voltage is 8 V ~ 480 V DC/AC (50/60 Hz). If the measured voltage is greater than 30 V, then the display is as shown in Figures 9.1d, 9.1e and 9.1f. Figure 9.1d DC voltage (>30V) measurement Figure 9.1e DC voltage (<-30V) measurement...

  • Page 35: Technical Specifications

    UT25CL User Manual Technical Specifications 10.1 Transmitter Specifications Characteristics UT25CL-T Working frequency 33kHz Identification range of external 8~480V voltage Identification frequency of DC/AC: 50-60Hz external voltage Measurement accuracy of 2.5%±3deg external voltage Strength of external 480V DC/AC overvoltage overvoltage rating...

  • Page 36: Receiver Specifications

    UT25CL User Manual or lights off. 2. UT25CL-T is in power-on state with batteries installed: the ELV LED lights off 3. UT25CL-T is in power-off state with batteries installed: If external voltage applied is >25V, the ELV LED emits weak light and its brightness increases as voltage rises (light up constantly), otherwise, the ELV LED emits weak light or lights off.

  • Page 37: Maintenance

    Indoor use √ Maintenance 11.1 Battery Replacement (UT25CL-T) The battery compartment of the transmitter is specially designed to facilitate battery replacement. The batteries are fixed by two screws, which prevents damage to the batteries in case the transmitter falls down. 6 pieces of AA alkaline batteries can be used.

  • Page 38: Fuse Replacement (Ut25Cl-T)

    2Hz) and the transmitter powers off. (There is an accuracy error of about 5% with the voltage of the critical point between levels) 11.3 Fuse Replacement (UT25CL-T) Dismantle the battery compartment (See “11.1 Battery Replacement”), loosen the batteries at the rear cover (as shown in Figure 11.3), remove the rear cover, use a tool to take off the fuse, and...

  • Page 39: Battery Replacement (Ut25Cl-R)

    UT25CL User Manual 11.4 Battery Replacement (UT25CL-R) The battery compartment of the receiver is specially designed to facilitate battery replacement. The batteries are fixed by a screw, which prevents damage to the batteries in case the receiver falls down. 6 pieces of AAA alkaline batteries can be used.

This manual is also suitable for:

Ut25cl-tUt25cl-r

Table of Contents