Model UT512 OPERATING MANUAL
Model UT512: OPERATING MANUAL Table of Contents Title Introduction Unpacking the Meter Safety Information International Electrical Symbols Battery Saver (Sleep Mode) Battery Indication The Meter Structure Display Key Functions Measurement Operation A. Measuring Voltages B.
Model UT512: OPERATING MANUAL Title USB Interface Maintenance A. General Service B. Replacing the Battery Specifications Safety and Compliances Physical Specifications General Specifications Feature Summary Detailed Accuracy Specifications A. Voltage Measurement B.
Model UT512: OPERATING MANUAL List of Tables Table Title 1. 2. 3. 4. 5. 6. 7.
Model UT512: OPERATING MANUAL List of Figures Figure 1. 2. 3. 4. 5. 6. 7. 8.
Model UT512: OPERATING MANUAL Table 1. Unpacking Inspection Introduction Uni-Trend Model UT512 insulation resistance tester (hereafter, ìthe Meterî) is a handheld instrument designed primarily to make resistance/ insulation resistance measurement.
Model UT512: OPERATING MANUAL Safety Information This Meter complies with the standards IEC61010 safety measurement requirement: in pollution degree 2, overvoltage category (CAT. III 600V) and double insulation. CAT II: Local level, appliance, PORTABLE EQUIPMENT etc., with smaller transient voltage overvoltages than CAT. III Use the Meter only as specified in this operating manual, otherwise the protection provided by the Meter may be impaired.
Model UT512: OPERATING MANUAL When carrying out insulation measurement, do not contact the circuit under test. Warning Do not use the Meter if it is damaged or metal part is exposed. Look for cracks or missing plastic. Be careful when working above 33V rms, 46.7V ac rms or 70V DC. Such voltages pose a shock hazard. Discharge all loading of circuit under test after measuring high voltage. Do not change battery when the Meter is in wet environment. Place test leads in proper input terminals.
Model UT512: OPERATING MANUAL International Electrical Symbols Battery Indication International symbols on the Meter and in this manual are explained in Table 2. There is a battery indicator shows on the display upper left hand corner. Below Table 3 is the explanation: Table 2. International Electrical Symbols Table 3. Battery Indication Risk of electric shock Equipment protected by double or reinforced insulation.
Model UT512: OPERATING MANUAL The Meter Structure Below Figure 1 and Table 4 shows the Meter front structure and description Green Black Red Figure 1.
Model UT512: OPERATING MANUAL Table 4. Meter Front Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 10 LCD Scroll Button Emergency Stop Data Clear the Display Backlight Button Down Button On/Off Button Compare Button Insulation Resistance Button DC Voltages measurement Button Timer Button. AC Voltages measurement Button Test Button USB Button Data Store Button.
Model UT512: OPERATING MANUAL Below Figure 2 and Table 5 shows the Meter side structure and description Table 5. Meter Side Description 1 2 3 Safety Shutter Power adaptor Input Terminal USB Port Figure 2.
Model UT512: OPERATING MANUAL Display Table 6 and Figure 3 describe the display. Figure 3.
Model UT512: OPERATING MANUAL Table 6.
Model UT512: OPERATING MANUAL Key Functions ON/OFF E-STOP CLEAR / SAVE 14 Table 7. Key Description Turn on or off the Meter. Press and hold the button for 1 second to turn the Meter on. Press again to turn off the Meter. The Meter default range is 500V insulation resistance continuous measurement when turning on. Emergency stop button. Press this button when the Meter is hang and cannot turn off the power.
Model UT512: OPERATING MANUAL Table 7. Key Description When set the timer duration for the measurement of insulation resistance or polarization index, press to decrement the time. The maximum length of time is 15 minutes and 30 seconds, the Meter will automatically carry out measurement. When compare feature measuring insulation resistance, press to decrement a resistance comparing value.
Model UT512: OPERATING MANUAL Table 7. Key Description COMP TIME TEST IR DCV ACV 16 Set a pass / fail limit for insulation tests. The default value is 10M Pres to step through continuous measurement, timed measurement and polarization index measurement in sequence.
Model UT512: OPERATING MANUAL Measurement Operation A. Measuring Voltages Below section explains how to make measurements. Press and hold ON/OFF to turn on the Meter, press again to turn off the Meter. The Meter default range is 500V insulation resistance continuous measurement when turning on. Red Green Figure 4.
Model UT512: OPERATING MANUAL Operating Catuion To avoid harms to you or damages to the Meter, please do not attempt to measure voltages higher than 600V or 600V rms, although readings may be obtained. Special care should be taken when measuring high voltage. To measure voltages, set up the Meter as Figure 4 and do the following: 1. Press DCV or ACV button to select DC voltage or AC voltage measurement 2. Insert the red and green test lead into the tested circuit. 3.
Model UT512: OPERATING MANUAL B. Measuring Insulation Resistance Red Green Black Groud Figure 5. Insulation Resistance Measurement Operating Caution When performing insulation resistance tests, remove all power from the circuit to be measured and discharge all the power. Operating the Meter must be very careful as it outputs dangerous voltage during measurement. Must make sure the tested object is firmed clipped, hands are away from the clips, then press TEST button to put high voltage.
Model UT512: OPERATING MANUAL To measure insulation resistance, set up the Meter as Figure 5 and do the following: 1. Press IR button to select insulation resistance measurement. 2. When there is no testing voltage output, press and button to select voltages of 500V, 1000V, 2500V or 5000V. 3. When performing insulation resistance tests, remove all power from the circuit to be measured and discharged all the power. 4.
Model UT512: OPERATING MANUAL Then press and hold TEST button for 2 second to carry out timed measurement. TIME 1 and are displayed and blinked on the LCD on every 0.5 seconds. When the set time is reached, the insulation resistance measurement voltage will be closed and the measurement will be automatically stopped. The LCD displays the insulation resistance reading. Press TIME button to select timed measurement mode, the LCD displays TIME 1 and symbols. Press and buttons to set the time (00:10~15:00).
Model UT512: OPERATING MANUAL Press COMP button to select compare feature. COMP symbol displays on the LCD.. Press and buttons to set the compare value Below is the list in sequence of the compare value:10MΩ, 20MΩ, 30MΩ, 40MΩ, 50MΩ, 60MΩ, 70MΩ, 80MΩ, 90MΩ, 100MΩ, 200MΩ, 300MΩ, 400MΩ, 500MΩ, 600MΩ, 700MΩ, 800MΩ, 900MΩ 1GΩ, 2GΩ, 3GΩ, 4GΩ, 5GΩ, 6GΩ, 7GΩ, 8GΩ, 9GΩ, 10GΩ, 20GΩ, 330GΩ, 40GΩ, 50GΩ, 60GΩ, 70GΩ, 80GΩ, 90GΩ, 100GΩ Press and hold TEST button for 2 seconds to carry out the measurement.
Model UT512: OPERATING MANUAL The Use of Power Adaptor The use of power adaptor, see figure 6 1. Open the side safey shutter, then you will see there is a power adaptor input terminal. 2. Make sure the Meter is power off and Insert the UT512 power adaptor to the input terminal. 3. It is highly recommeded to take out all the batteries when you are using the power adaptor. 4. Make sure the Meter is power off when you disconnect the UT512 power adaptor from the Meter. 5.
Model UT512: OPERATING MANUAL USB Interface Connecting the USB interface, see figure 7 Figure 7. USB Interface Connection 24 1. Install the included software, the installation guide can be seen from the CD. 2. Open the side safety shtter, then you will see there is a USB port. 3. Insert the included USB cable to the Meterís USB port and the other end to the computer.
Model UT512: OPERATING MANUAL Maintenance If the Meter is wet, dry it before use. This section provides basic maintenance information including battery replacement instruction. Warning Do not attempt to repair or service your Meter unless you are qualified to do so and have the relevant calibration, performance test, and service information. A. General Service Periodically wipe the case with a damp cloth and mild detergent. Do not use abrasives or solvents.
Model UT512: OPERATING MANUAL B. Replacing the Battery Operating Caution Donít mix to use old and new batteries. Be careful the polarity is correct when installing batteries. Do not use the Meter if the battery indicator ( ) shows a battery empty condition. Do you carry out measuring during the battery compartment is open. Follow Figure 8 and proceed as follows to replace the battery: Figure 8.
Model UT512: OPERATING MANUAL Specifications Safety and Compliances Certification Compliances IEC 61010 CAT.III 600V overvoltage and double insulation standard Physical Specifications Display (LCD) Operating Temperature Storage Temperature Relative Humidity Battery Type Dimensions (HxW xL) Weight Digital: 9999 counts Analog bar graph. -10 ~40 (14 ~104 ) -20 ~60 (-4 ~152 ) 85% @ -10 ~40 below; 90% @ -20 ~60 : 8pcs of 1.5V (LR14) batteries or power adaptor (input voltage 230V, 50/60Hz, 50mA, input DC14.
Model UT512: OPERATING MANUAL General Specifications Range Overloading Battery Indicator Icon Display Current Consumption Auto Display OL on insulation resistance range Display Equips with function and battery indicator icons. Maximum: around 600mA Average: around 20mA Feature Summary Display Backlight Computer connection Data Logging and Recall Autorange Warning Voltage COMP Measurement PI Measurement TIME 28 Bright backlight for clear readings in poorly lighted areas. Via USB interface.
Model UT512: OPERATING MANUAL Detailed Accuracy Specifications Accuracy: ([% of reading] + [number of least significant digits), guarantee for 1 year. Operating temperature: 18 ~28 Relative humidity: 45~75%RH A.
Model UT512: OPERATING MANUAL B. Insulation Resistance Measurement Output Voltage 1000V 1500V 2500V Display Range 2M ~10.0G 5M ~20.0G 10M ~100G DC1000V + 20%, -0% DC 2500V + 20%, -0% DC2500V + 20%, -0% 1mA~1.2mA @ 1M 1mA~1.2mA @ 1.5M 1mA~1.2mA @ 2.5M 500V 0.5MΩ~5.0GΩ Open Circuit Voltage DC 500V + 20%, -0% Test Current 1mA~1.2mA @500kΩ Short Circuit Accuracy Less than 2.
Model UT512: OPERATING MANUAL *END* This operating manual is subject to change without notice.
Model UT512: OPERATING MANUAL Copyright 2007 Uni-Trend Group Limited. All rights reserved. Manufacturer: Uni-Trend Technology (Dongguan) Limited Dong Fang Da Dao Bei Shan Dong Fang Industrial Development District Hu Men Town, Dongguan City Guang Dong Province China Postal Code: 523 925 Headquarters: Uni-Trend Group Limited Rm901, 9/F, Nanyang Plaza 57 Hung To Road Kwun Tong Kowloon, Hong Kong Tel: (852) 2950 9168 Fax: (852) 2950 9303 Email: info@uni-trend.com http://www.uni-trend.
