UT26858 OPERATING MANUAL Contents TITLE Whamming— I. Introduction —— Il. Electrical Symbols Il. Technical Specifications 1.Reference and Operating Con: 2. General Specifications. 3. General Differences and Performance Indexes under Reference Conditions IV. Meter Description— — — V. Operating Instructions— 1. Power On/Off —— —— 2.
UT2658 OPERATING MANUAL TITLE PAGE 3. Data Hold, Cancel and Save —— 19 4. Data Access and Ext— 19 5. Data Delete 19 6. Data Transmission to PC— 7. Measurement— —— VI. Battery Replacement — VII. Other Items and Notes — VIII. Product Contents — — —— UT26858 OPERATING MANUAL A Wakings Thank you for purchasing our product UTES Intelligent double clamp phase digital volt ammeter (also known as automatic dual-clamp digital phase volt ampere meter).
UT2658 OPERATING MANUAL # list prohibited to test on inflammable and dangerous sites # Disconnect test leads with the conductor before unplugging out of the mater; to avoid electric shack do nat touch input terminals # Keep the meter away from strong electromagnetic environment to ensure normal operation. # The operation will be invalid if simultaneously pressing two buttons or more. # Stop using the meter i the housing or test lead Is found with any fracture and metal exposure.
UT2658 OPERATING MANUAL I. Introduction UT265 intelligent double clamp phase digital volt ammeter (lase known as Automatic dual-clamp digital phase volt ampere meter) comes out from tremendous efforts of our company and is a totally automatic, multi-functional, digital and intelligent tool especially designed for on-site measurement.
UT2658 OPERATING MANUAL factories and mining, R&D institutes, metro logical department. It is particularly needed in electric charging and relay protection system, electric power calculation, check and monitoring from power supply re marketing departments as well as electric Installment, relay protection, differential Inspection, start-up testing, power transformation check , electrical training, skill competition performed by technical department. Il.
UT2658 OPERATING MANUAL UT26858 OPERATING MANUAL Current Amplitude when measuring frequency 200mA+3mA 10mA~20A phase sequence Voltage Amplitude when measuring frequency 100VLEV 10V~800V phase sequence Current Amplitude when measuring r factor 200mA£3mA 20mA~20A Voltage Amplitude when i measuring r factor 100Vi5V 10V~600V External . Electromagnetic Field Avoided Conductor Location Placed on geometric center of the jaw 2.
UT2658 OPERATING MANUAL Phase Angle: 0.0° ~360.0° Frequency: Active Power: Reactive Power. | Apparent Power. Rawer Factor: -1~+1 Jaw Size Sharp current clamp: 7.5mm X 13mm Voltage: AC 0.01V Current: AC 0.1mA Phase Angle: 0.1° Resolution Frequency: 0.01Hz Active Power: 0.1W Reactive Power: 0.1VAR Apparent Power: 0.1VA UT26858 OPERATING MANUAL Power Factor: 0.001 Data Storage 1500 sets RS232 Interface With data transferred into PC for further data management and analysis ‘Communication line Rs232 type, 1.
UT2658 OPERATING MANUAL Auto power off to reduce power loss minsters Auto Power Off later after power on Low battery displays with voltage lower than Battery Voltage 7.2V, please change batteries | The meter: batterer included) | Weight Current Clamp: 170gX2 Test leads: 250g Testing Lead Length | 1.
UT2658 OPERATING MANUAL 3. General Differences and Performance Indexes under Reference Conditions Items. Sangs Resolution | General Difference Voltage AC 0.01v Current AC 0.1mA Phase Angle 0.0° ~360° 01° +1° Active Power P 0.1wW Reactive Power Q | 0.1VAR Apparent Power S 0.1VA Power Factor PF -1~+1 0.001 +0.03 Frequency F 45HZ~65HZ 0.01HZ | Notes: Phase angle differences should not exceed +£3° under the working 16 conditions. UT26858 OPERATING MANUAL IV. Structure of Meter .
UT2658 OPERATING MANUAL UT26858 OPERATING MANUAL V. Operating Instructions A Notes: @ Please carefully check to ensure there are no damaged parts before operating the meter. ® Do not use the meter on dangerous slates. ® Install the battery as specified in the manual. ® Do not simultaneously press 2 buttons or more in case of invalid operation. 1. Power On/Off Press {ON to power on and LCD displays. Press [OFF button, the meter will automatically switch off 15 minutes later after power on. 2.
UT2658 OPERATING MANUAL mess. 6. Data Transmission to PC The accessory USB-RS232 connection line is used for communication of the meter with PC. With the meter powered on and the software running, several following operations such as history lookup, data recall, save, report sheet, history printing can all be performed. The more data the meter saves, more time it will take to read out. History data can be saved in Txt or Excel format. 7.
UT2658 OPERATING MANUAL The meter can measure two-way AC voltage, current, phase angle between voltages, currents or both, frequency, phase sequence, active, reactive and apparent powers, power factor, inductive and capacities circuits. Wire connection shows as below: Single-Phase Measurement: Connect measured voltage lines L and N to terminals red U1 and black COM, then get current clamp 11 enclose L line. It Is able to measure single-phase voltage, current, pass, frequency, power factor, ect.
24 UT2658 OPERATING MANUAL UT26858 OPERATING MANUAL Three-Phase Four-Wire Measurement: It takes two steps to measure three phase four-wire voltage, current, phase angle, phase sequence, frequency, power factor, ect. Refer to the table and figure for right connection. ( it is internally short-circuit for 2 COM terminals and so any COM can be selected for connection with N line.
UT2658 OPERATING MANUAL UT26858 OPERATING MANUAL Three-Phase Three-Wire Measurement: Connect measured voltage lines yellow UA, green UB and red UC to terminals red U1, black COM and U2, then get current clamps [1 and 12 enclose measured lines IA and IC. It Is able to measure three-phase three-wire voltage, current, phase angle and sequence, frequency, power and power factor, ect.
28 UT2658 OPERATING MANUAL UT26858 OPERATING MANUAL It Is possible to differentiate among Inductive and capacities load, phase sequence and the polarity during measuring.
UT2658 OPERATING MANUAL VI. Battery Replacement A Notes: ® To avoid damage fo the meter, ensure correct polarity when Installing batteries. @ tis prohibited to replace batteries on dangerous sites ® Please use specified alkaline dry AAX 6) ® Old and new batteries are not allowed to match together for use 1. Low battery icon displays with power supply below 7 2V, please change batteries timely and do as below: £ union to power off. 3.
UT2658 OPERATING MANUAL VII. Other Items and Notes Exclusiveness of Current Clamps There are two current clamps attached to every meter, which can not be exchanged for the other meters. Current clamps should be prevented from any crush and kept clean in order to ensure reliability when closing up to measure. 2.
UT2658 OPERATING MANUAL 8. Three-Phase Four-Wire and Three-Phase Three-Wire Vector Diagrams Yi ut uz Three-Phase Four-Wire Vector Diagram A Notes: usu ut ui Three-Phase Three-Wire Vector Diagram If current clamps or current wires are incorrectly attached, the displayed phase difference will be 180° , that is to increment by 180° based on reference values above. 34 UT26858 OPERATING MANUAL VII. Product Contents The Meter Carrying Case Current Clamps 1 1 2 System Software CD 1 RS232 Communication Line 1 (1.
