Model UT511 OPERATING MANUAL
Model UT511: OPERATING MANUAL 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.Measuring Insulation Resistance a) Continuous Measurement b) Timed Measurement c) Polarization Index (PI) Measurement d) Compare Function C.
Model UT511: OPERATING MANUAL TITLE The Use of Power Adaptor 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. Insulation Resistance Measurement C.
Model UT511: OPERATING MANUAL Table Title 1. 2. 3. 4. 5. 6. 7.
Model UT511: OPERATING MANUAL 4 Figure Title 1. 2. 3. 4. 5. 6. 7. 8.
Model UT511: OPERATING MANUAL Introduction Uni-Trend Model UT511 insulation resistance tester (hereafter, “the Meter”) is a handheld instrument designed primarily to make resistance/ insulation resistance measurement. Unpacking the Meter The Meter includes the following items: Table 1. Unpacking Inspection Item 1 2 3 4 5 6 Description English Operating Manual One plug test lead to one alligator Two plugs test lead to one alligator 1.
Model UT511: OPERATING MANUAL International electrical symbols used on the Meter and in this Operating Manual are explained on page 4~5. Danger Use of instrument in a manual not specifed by the manufactuer may impair safety features/ protection provided by the equipment. Read the following safety information carefully before using or servicing the instrument. l Do not apply more than 1000VDC or 750V AC. l Do not use the Meter around explosive gas, vapor or dust. l Do not use the Meter in a wet environment.
Model UT511: OPERATING MANUAL l When servicing the Meter, use only the same model number or identical electrical specifications of test leads and power adaptor. l Do not use the Meter if the battery indicator ( ) shows a battery empty condition. Take the battery out from the Meter if it is not used for a long time. l Do not use or store the Meter in an environment of high temperature, humidity, explosive, inflammable and strong magnetic field. The performance of the Meter may deteriorate after dampened.
Model UT511: OPERATING MANUAL Battery Saver (Sleep Mode) Battery Indication The Meter enters the Sleep Mode and blanks the display if there is no button press for 15 minutes. This is done to conserve battery power. The Meter comes out of Sleep Mode when ON/OFF button is pressed two times. There is a battery indicator shows on the display upper left hand corner. Below Table 3 is the explanation: The 15 minutes timer is disabled during any insulation resistance measurement.
Model UT511: OPERATING MANUAL The Meter Structure Below Figure 1 and Table 4 shows the Meter front structure and description Table 4. Meter Front Description 1 2 3 4 5 6 7 8 9 10 LCD Scroll Button Emergency stop Data Clear the Display Backlight Button, Down Button On/Off Button Compare Button Insulation Resistance Button Voltages measurement Button Timer Button. Figure 1. The Meter Front Structure 11 Low Resistance measurement Button 12 13 14 15 Test Button Step Button Data Store Button.
Model UT511: OPERATING MANUAL Below Figure 2 and Table 5 shows the Meter side structure and description Display Table 6 and Figure 3 describe the display. Figure 2. The Meter Side Structure (Side View) Figure 3. Display Table 5.
Model UT511: OPERATING MANUAL Table 6.
Model UT511: OPERATING MANUAL Key Functions Table 7. Key Description ON/OFF CLEAR/ SAVE LOAD 12 Turn on or off the Meter. Press and hold the button for 1 second to turn the Meter on. Press to clear the stored data,Push 1 SEC to turn on and off the display backlight. Press to store the current measurement value. The maximum number of stored reading is 18. When the stored readings memory is full, the Meter shows FULL and stop storing.
Model UT511: OPERATING MANUAL Table 7. Key Description l When compare feature measuring insulation resistance, press to decrement a resistance comparing value. l After polarization index measurement, press to display polarization index, TIME 2 insulation resistance value and TIME 1 insulation resistance value in sequence. l When set the timer duration for the measurement of insulation resistance or polarization index, press to increment the time.
Model UT511: OPERATING MANUAL Table 7. Key Description STEP COMP TIME TEST Ho 14 l When the Meter is under compare mode: S1 means increment of 1, then each press of increase 1 or decrease 1. S2 means increment of 10, then each press of increase 10 or decrease 10. S3 means increment of 100, then each press of increase 100 or decrease 100. Set a pass / fail limit for insulation tests.
Model UT511: OPERATING MANUAL Measurement Operation Below section explains how to make measurements. A. Measuring Voltages Caution l Special care should be taken when measuring high voltage. Warning l To avoid harms to you or damages to the Meter, please do not attempt to measure voltages higher than 1000V DC or 750V AC, although readings may be obtained. Black To measure voltages, set up the Meter as Figure 4 and do the following: Red Figure 4. Voltages Measurement 1.
Model UT511: OPERATING MANUAL Note l When voltage measurement has been completed, disconnect the connection between the testing leads and the circuit under test and remove testing leads away from the input terminals of the Meter. B. Measuring Insulation Resistance Red Black Figure 5.
Model UT511: OPERATING MANUAL Caution l When performing insulation resistance tests, remove all power from the circuit to be measured and discharge all the power. l Do not short circuit two test leads under high voltage status. l Do not measure insulation resistance after high voltage output.
Model UT511: OPERATING MANUAL Press TEST button to close the insulation resistance measurement voltage when measurement is completed. TEST button lights off , disappears. The LCD shows the current insulation resistance measurement value. l Press TIME button to select timed measurement mode, the LCD displays TIME 1 and symbols. l Press , and STEP buttons to set the time (00:05~29:30). l Then press and hold TEST button for 1 second to carry out timed measurement.
Model UT511: OPERATING MANUAL l Press , to set through the polarization index, TIME 2 insulation resistance reading and TIME 2 insulation resistance reading. Information: PI = 3 minutes ~10 minutes reading / 30 second ~1 minutes reading PI 4 or more 4~2 Standard The best Good 2.0~1.0 Warning 1.0 or less Bad l Press COMP button to select compare feature. COMP symbol displays on the LCD. l Press , and STEP buttons to set the compare value.
Model UT511: OPERATING MANUAL C. Low Resistance Measurement Caution l When performing insulation resistance tests, remove all power from the circuit to be measured and discharge all the power. Red To measure low resistance, set up the Meter as Figure 6 and do the following: Black Figure 6. Low Resistance Measurement 20 1. Press LO button to select low resistance measurement.. 2. Insert the red test lead into the LINE terminal and the black test lead into EARTH terminal. 3.
Model UT511: OPERATING MANUAL The Use of Power Adaptor The use of power adaptor, see figure 7 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 UT511 power adaptor to the input terminal. 3. It is highly recommed 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 UT511 power adaptor from the Meter.
Model UT511: OPERATING MANUAL Maintenance 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 l Periodically wipe the case with a damp cloth and mild detergent. Do not use abrasives or solvents.
Model UT511: OPERATING MANUAL Follow Figure 8 and proceed as follows to replace the battery: l Turn the Meter to OFF and remove all connections from the terminals. l Remove the screw from the battery compartment, and separate the battery compartment from the case bottom. l There are 8pcs of 1.5V (R14) carbon battteries in the meter, except this, it can support 1.5V (LR14) alkalescence batteries and the special power apapter which our company provided.
Model UT511: OPERATING MANUAL Specifications Safety and Compliances Certification Compliances IEC 61010 CAT.II 1000V, CAT.III 600V overvoltage and double insulation standard Physical Specifications Display (LCD) Operating Temperature Storage Temperature Relative Humidity Battery Type Dimensions (HxW xL) Weight 24 Digital: 9999 counts Analog bar graph. -10 ~40 (14 ~104 ) -20 ~60 (-4 ~140 ) 85% @ -10 ~40 below; 90% @ -20 ~60 : 8pcs of 1.5V (R14 or LR14) batteries or DC15V power adaptor.
Model UT511: 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 90mA Average: around 20mA Feature Summary Display Backlight Autorange Warning Voltage COMP Measurement PI Measurement Bright backlight for clear readings in poorly lighted areas. The Meter automatically selects best range and red light will on.
Model UT511: 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. Voltage Measurement Measurement Range Resolution Accuracy DC Voltage 30 ~ 1000V 1V (2%+3) AC Voltage 30V~750V (50/60Hz) 30~100V (2%+5) 100~750V (2%+3) B. Insulation Resistance Measurement Output Voltage Display Range 100V 0.1M ~99.
Model UT511: OPERATING MANUAL Caution At any output voltage, when the tested resistance is les than 5MΩ, the testing time cannot exceed 10 seconds. C. Low Resistance Measurement Function Measurement Range Resolution Accuracy Maximum open circuit voltage Buzzer Overload Protection Resistance 0.1Ω~999.9Ω 0.1Ω (1%+3) Around 2.
Model UT511: OPERATING MANUAL *END* This operating manual is subject to change without notice.
Model UT511: OPERATING MANUAL Copyright 2006 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.
