Model UT804 OPERATING MANUAL
Model UT804: OPERATING MANUAL Chapter Title 1. Before You Start Overview Unpacking Inspection Safety Information Rules For Safe Operation International Electrical Symbols Getting Acquainted Turning the Meter On Battery Considerations Automatic Power Off Automatic Backlight Off Low Battery Indication The Meter Structure Rotary Switch Functional Buttons The Meter Functions Vs Displays Selecting the Range Understanding the Display Analogue Bar Graph Using MAX MIN Making Measurements A.
Model UT804: OPERATING MANUAL Chapter 4. 5. 6. 2 Title C.Measuring DC Millivoltage D.Measuring Currents E.Measuring Resistance F.Testing for Continuity G.Testing Diodes H.Measuring Capacitance I. Measuring Frequency / Duty Cycle J.Measuring Temperature K.
Model UT804: OPERATING MANUAL Chapter Title 7. Specifications Safety and Compliances Physical Specifications General Specifications Feature Summary Basic Specifications Detailed Accuracy Specifications A. DC Voltage B. AC Voltage C. DC Current D. AC Current E. Resistance F. Continuity Test G. Diode Test H. Capacitance I. Frequency J. Duty Cycle K. Temperature 1-1. Degrees Celsius 1-2. Fahrenheit L.
Model UT804: OPERATING MANUAL 4 Table Title 1-1 1-2 2-1 2-2 2-3 2-4 5-1 Unpacking Inspection International Electrical Symbols Rotary Switch Selections Functional Buttons Functions Vs Displays Display Features Setup Selections List of Tables Page 7 10 14 15 18 21 49
Model UT804: OPERATING MANUAL Table Title 2-1 2-2 3-1 3-2 3-3 3-4 3-5 3-6 3-7 3-8 3-9 3-10 3-11 3-12 3-13 3-14 3-15 3-16 6-1 6-2 Meter Structure Display Features DC Voltage Measurement AC Voltage Measurement DC Millivoltage Measurement DCµA Currents Measurement ACµA Currents Measurement DCmA Currents Measurement ACmA Currents Measurement DCA Currents Measurement ACA Currents Meaasurement Resistance Measurement Continuity Test Diode Test Capacitance Measurement Frequency / Duty Cycle Measurement Temperat
Model UT804: OPERATING MANUAL Overview This Operating Manual covers information on safety and cautions. Please read the relevant information carefully and observe all the Warnings and Notes strictly. Warning To avoid electric shock or personal injury, read the “Safety Information” and “Rules for Safe Operation” carefully before using the Meter.
Model UT804: OPERATING MANUAL Unpacking Inspection Open the package case and take out the Meter. Check the items shown on Table 1-1 carefully to see any missing or damaged part: Table 1-1.
Model UT804: OPERATING MANUAL Safety Information This Meter complies with the standards IEC61010 safety measurement requirement: in pollution degree 2, overvoltage category (CAT. I 1000V, CAT.II 600V) and double insulation. CAT. I: Signal level, special equipment or parts of equipment, telecommunication, electronic, etc., with smaller transient overvoltages than overvoltages CAT. II. CAT. II: Local level, appliance, PORTABLE EQUIPMENT etc., with smaller transient voltage overvoltages than CAT.
Model UT804: OPERATING MANUAL terminals or between any terminal and grounding. l The rotary switch should be placed in the right position and no any changeover of range shall be made during measurement is conducted to prevent damage of the Meter. Must disconnect the connection between the test leads and the tested circuit before changing the measurement position of the rotary switch. l During measurement, do not contact naked wire, connector, un-used input terminal or the circuit in used.
Model UT804: OPERATING MANUAL and accident. l The Meter is suitable for indoor use. l When under battery operated situation, turn the Meter off when it is not in use and take out the battery when not using for a long time. l When under battery operated situation, constantly check the battery as it may leak when it has been using for some time, replace the battery as soon as leaking appears. A leaking battery will damage the Meter.
Model UT804: OPERATING MANUAL Chapter 2 Getting Acquainted Turning the Meter On To turn the Meter on, switch on the on-ff switch at the back of the Meter. Battery Considerations The Meter uses one 6pcs X 1.5V Battery (R14) or AC110V 50Hz. The following paragraphs describe several techniques used to conserve battery power.
Model UT804: OPERATING MANUAL Under AC operated situation, the backlight is always on, cannot turn off. Low Battery Indication A constant battery icon ( ) in the middle left area of the display notifies you that the batteries are low and should be replaced. 1 3 Warning To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the battery icon ( ) appears. The Meter Structure The Figure 2-1 shows the Meter structure. 4 1. LCD Display 2.
Model UT804: OPERATING MANUAL Rotary Switch Turn the Meter on by selecting any measurement function. The Meter presents a standard display for that function. The display may also be influenced by some of the choices made in Setup. Use the blue SELECT button to select any rotary switch alternate function (labeled in blue letters). When you turn the rotary switch from one function to another, a display for the new function appears. Button choices made in one function do not carry over into another function.
Model UT804: OPERATING MANUAL The Table 2-1 described each rotary switch position Table 2-1.
Model UT804: OPERATING MANUAL Functional Buttons The buttons activate features that augment the function selected with the rotary switch. The buttons are shown in Table 2-2. Table 2-2. Functional Buttons Button Description SELECT feature: Use the blue button to select any rotary switch alternate function (labeled in blue letters) LIGHT feature: Under battery operated situation, turn the display backlight on. Under AC operated situation, the backlight is always on, cannot turn off.
Model UT804: OPERATING MANUAL Table 2-2. Functional Buttons Button 16 Description Access Method Press to output the data, AUTO mode switch off. The primary display shows “SEND”. Press EXIT to exit. Setup feature: In Setup, press to select OFF at the selection of HIGH and LOW Press to display max, min and current measurement reading. Press EXIT to stop and return to current measurement mode. l In Setup, each press to select the digit you want to edit.
Model UT804: OPERATING MANUAL Table 2-2. Functional Buttons Button Description Access Method In Setup, each press to decrement an Option. In Recall, each press to go back to the previous stored reading. In Store, each press to decrease a second on the storing interval. Press EXIT to exit Hold feature: Press HOLD to freeze the displayed value. Press EXIT to release the display. In Setup, each press to increment an Option. In Recall, each press to recall the next stored reading.
Model UT804: OPERATING MANUAL The Meter Functions Vs Displays Table 2-3 shows the cross reference of function and display: Table 2-3 Functions Vs Displays Function DCV ACV DCmV Ω Primary Display The tested DC voltage value The tested AC voltage value ACµA The tested DCmV value The tested resistance value The tested resistance value The tested resistance value The tested frequency value The tested capacitance value o The tested C value o The tested F value The tested DCµA value The tested ACµA value DC
Model UT804: OPERATING MANUAL Table 2-3 Functions Vs Displays Function Primary Display ACmA The tested ACmA value DCA ACA The tested DC current value The tested AC current value STORE The current measurement reading RECALL The recalled value Lower Right Secondary Display Upper Right Secondary Display The tested frequency value: 40.00kHz~100.0kHz No display The tested frequency value: 40.00kHz~100.0kHz The value of the corresponding index number The total number of stored value.
Model UT804: OPERATING MANUAL Selecting the Range Press RANGE to enter manual ranging mode and select a fixed range. Autoranging (AUTO lighted in the display) always comes on initially when you select a new function. In autorange, the Meter selects the lowest input range possible, ensuring that the reading appears with the highest available resolution. If AUTO is already on, press RANGE to enter MANUAL ranging in the present range. You can then select the next manual range each time you press RANGE.
Model UT804: OPERATING MANUAL Table 2-4. Display Features No. Symbol 1 MAX MIN No 2 3 4 o o C F H µ mS Meaning Maximum reading displayed. Minimum reading displayed The sequence of the reading. Degrees Celsius (default) or Fahrenheit. H: Hour µ: Micro 5 6 SET 7 8 AC+DC 9 TrueRMS m: Minutes (Milli) S: Second Indicates negative reading The battery is low.
Model UT804: OPERATING MANUAL Table 2-4. Display Features No. Symbol Ω, kΩ, MΩ Hz, kHz, MHz mV, V 10 µA, mA, A nF, µF, mF 11 22 Meaning Ω: Ohm. The unit of resistance. kΩ: Kilohm. 1x103 or 1000 ohms MΩ: Megaohm. 1x106 or 1,000,000 ohms Hz : Hertz. The unit of frequency in cycles/second. kHz: Kilohertz. 1x103 or 1000 hertz MHz: Megahertz, 1x106 or 1,000,000 hertz. V: Volts. The unit of voltage. mV: Millivolt. 1x10-3 or 0.001 volts A: Amperes (amps). The unit of current. mA: Milliamp, 1x10-3 or 0.
Model UT804: OPERATING MANUAL Table 2-4. Display Features No. 12 13 14 15 16 17 18 19 20 21 22 23 24 Symbol STO RCL ∆ LOW AUTO SEND HOLD PEAK HOLD % OL Analogue Bar Graph Meaning Continuity test Data store is on Data recall is on The relative mode is on to display the present value minus the stored value. The indicator for the lowest setup limit. The Meter is in the auto range mode in which the Meter automatically selects the range with the best resolution.
Model UT804: OPERATING MANUAL Analogue Bar Graph The bar graph provides an analogue indication of the measured input. For most measurement functions, the bar graph updates 10 times per second. Using MAX MIN The MAX MIN mode stores minimum (MIN) and maximum (MAX) input values. When the input goes below the stored minimum value or above the stored maximum value, the Meter beeps and stores the new value. Press MAX MIN to enter MAX MIN mode. The sampling time is every 2 seconds.
Model UT804: OPERATING MANUAL Chapter 3 Making Measurement Introduction Chapter 3 explains how to make measurements. Most measurement functions can be selected by using the rotary switch. While letters or symbols identify primary functions; blue letters or symbols identify alternative functions. Press the BLUE button to access these alternate functions.
Model UT804: OPERATING MANUAL Note l When measuring V , the Meter acts around a 10MΩ input impedance in parallel with the circuit. This loading effect can cause measurement errors in high impedance circuits. In most cases, the error high impedance circuits. In most cases, the error is negligible (0.1% or less) if the circuit impedance is 10kΩ or less. l Special care should be taken when measuring high voltage.
Model UT804: OPERATING MANUAL B. Measuring AC Voltage Figure 3-2. AC Voltage Measurement Warning To avoid harms to you or damages to the Meter from electric shock, please do not attempt to measure voltages higher than 1000V, although readings may be obtained. To measure AC voltage, set up the Meter as Figure 32 and do the following: 1. Insert the red test lead into the V terminal and the black test lead into the COM terminal. 2. Set the rotary switch to V . 3.
Model UT804: OPERATING MANUAL C. Measuring DC Millivoltage To measure DC Millivoltage Measurement, set up the Meter as Figure 3-3 and do the following: 1. Insert the red test lead into the V terminal and the black test lead into the COM terminal. 2. Set the rotary switch to mV . Press the SELECT button cycles among mV , frequency and duty cycle. 3. Connect the test leads across with the object being measured. The measured value shows on the display. It displays the RMS. Figure 3-3.
Model UT804: OPERATING MANUAL D. Measuring Currents To avoid possible damage to the Meter or to the equipment under test, check the Meter’s fuses before measuring current. Use proper terminals, function, and range for the measurement. Never place the testing leads in parallel with any circuit or component when the leads are plugged into the current terminals. To measure DCµA current, set up the Meter as Figure 3-4 and proceed as follows: Figure 3-4. DCµA Currents Measurement Warning 1.
Model UT804: OPERATING MANUAL To measure ACµA current, set up the Meter as Figure 3-5 and proceed as follows: Figure 3-5. ACµA Currents Measurement 30 1.Insert the red test lead into the µAmA terminal and black test lead into the COM terminal. 2.Set the rotary switch to µA . DC measurement is default, press SELECT button to select AC measurement mode. 3.Connect the test leads in serial with the object being measured. The measured value shows on the display. It displays the True RMS value.
Model UT804: OPERATING MANUAL To measure DCmA current, set up the Meter as Figure 3-6 and proceed as follows: 1. Insert the red test lead into the µAmA terminal and black test lead into the COM terminal. 2. Set the rotary switch to mA . DC measurement is default, or press SELECT button to select DC measurement mode 3. Connect the test leads in serial with the object being measured. The measured value shows on the display. It displays the RMS. Figure 3-6.
Model UT804: OPERATING MANUAL To measure ACmA current, set up the Meter as Figure 3-7 and proceed as follows: Figure 3-7. ACmA Currents Measurement 32 1. Insert the red test lead into the µAmA terminal and black test lead into the COM terminal. 2. Set the rotary switch to mA . DC measurement is default, press SELECT button to select AC measurement mode 3. Connect the test leads in serial with the object being measured. The measured value shows on the display. It displays the True RMS value. 4.
Model UT804: OPERATING MANUAL To measure DCA current, set up the Meter as Figure 3-8 and proceed as follows: 1. Insert the red test lead into the 10A terminal and black test lead into the COM terminal. 2. Set the rotary switch to A . DC measurement is default, or press SELECT button to select DC measurement mode 3. Connect the test leads in serial with the object being measured. The measured value shows on the display. It displays the RMS. Figure 3-8.
Model UT804: OPERATING MANUAL 3. Connect the test leads in serial with the object being measured. The measured value shows on the display. It displays the True RMS value. When a ACV function is selected, you can press the 4. AC+DC button to view the AC + DC True RMS value in the primary display. Note l Figure 3-9. ACA Currents Measurement l To measure ACA current, set up the Meter as Figure 39 and proceed as follows: 1.
Model UT804: OPERATING MANUAL E. Measuring Resistance Warning To avoid harms to you, please do not attempt to input voltage higher than 60V DC or 30V AC. To avoid possible damages to the Meter or to the devices under test, disconnect circuit power and discharge all the high-voltage capacitors before measuring resistance. To measure resistance, set up the Meter as shown in Figure 3-10 and follow the following procedure: Figure 3-10. Resistance Measurement 1.
Model UT804: OPERATING MANUAL Note l When measuring low resistance, the test leads can add 0.1 to 0.2 of error to resistance measurement. To test the leads, touch the probe tips together and read the resistance of the leads. If necessary, you can press REL ∆ to automatically subtract this value. l For high-resistance measurement (>1M ), it is normal taking several seconds to obtain a stable reading. In order to obtain precision readings, use the test lead as short as possible.
Model UT804: OPERATING MANUAL F. Testing for Continuity To test for continuity, set up the Meter as Figure 3-11 and do the following: 1. Insert the red test lead into the terminal and the black test lead into the COM terminal. 2. Set the rotary switch to ; press SELECT button to select measurement mode and connet the test leads across with the object being tested. 3. The beeper comes on continuously for open conditions, that is test resistance around < 50 . 4.
Model UT804: OPERATING MANUAL G. Testing Diodes Warning To avoid harms to you, please do not attempt to input voltages higher than 60V DC or 30V AC. To avoid damages to the Meter or to the devices under test, disconnect circuit power and discharge all the high-voltage capacitors before testing diodes. Figure 3-12. Diode Test Use the diode test to check diodes, transistors, and other semiconductor devices.
Model UT804: OPERATING MANUAL on the component’s anode and place the black test lead on the component’s cathode. The red test lead polarity is “+” while the black test lead polarity is “— “. The measured value shows on the display. the connection between the testing leads and the circuit under test and remove the test leads away from the input terminals. The SELECT button cycles among resistance, continuity, and diode.
Model UT804: OPERATING MANUAL H. Measuring Capacitance Warning To ensure accuracy, the Meter inside is discharged against the tested capacitor. “----” will be shown on the display when it is under discharging, this process will be quite slow. To avoid damage to the Meter or to the equipment under test, disconnect circuit power and discharge all high-voltage capacitors before measuring capacitance. To measure capacitance, set up the Meter as shown in Figure 3 -13 and proceed as follows: Figure 3-13.
Model UT804: OPERATING MANUAL accuracy. To improve the measurement accuracy of small value capacitors (less than 10nF), press REL ∆ with the test leads open to subtract the residual capacitance of the Meter and leads. 3. It is recommended to use test clip to carry out measurement to reduce the effect of internal distributed capacitor. Note l The LCD displays OL indicating the tested capacitor is shorted or it exceeds the maximum range. l Capacitors larger than 400µF take longer time.
Model UT804: OPERATING MANUAL I. Measuring Frequency / Duty Cycle To measure frequency and duty cycle, connect the Meter as Figure 3-14 and do the following: 1. Insert the red test lead into the Hz terminal and the black test lead into the COM terminal. Hz % 2. Set the rotary switch to mV and press SELECT button to select the Hz measurement mode for frequency measurement or % for duty cycle measurement. The SELECT button cycles among mV , frequency and duty cycle. 3.
Model UT804: OPERATING MANUAL J. Measuring Temperature o o 1. Set the rotary switch to C F , the display shows OL. Short circuit the test leads to show the room temperature. 2. Insert the point contact temperature probe into the Meter as figure 10. 3. Place the temperature probe to the object being measured. The measured value shows on the display after several seconds. o 4.
Model UT804: OPERATING MANUAL K. 4~20 mA loop current as % readout Warning To avoid electric shock, please take extra care during measurement. To avoid harms to the Meter and yourself, never input higher than 250V from socket, although readings may be obtained. Before the Meter and the tested object are connected to the to be tested return circuit, turn the return circuit power off. It shows the mA measured value or output level in %, in a 4-20mA scale Figure 3-16.
Model UT804: OPERATING MANUAL 3. When the readings obtained is: l < 4mA, the primary display shows LO l 4mA, the primary display shows 0%. …. l 20mA, the primary display shows 100% l > 20mA, the primary display shows HI Note l When the measured current is 5A, continuous measurement is allowed. l When the measured current is between 5A-10A, continuous measurement 10 seconds and interval more than 15 minutes. l Do not attempt to measure higher than 10A.
Model UT804: OPERATING MANUAL Chapter 4 Using Store, Recall & Send Features Introduction Chapter 4 shows you how to use stores, recall and communication features available on the Meter Store and Clearing Readings To store readings, proceed as follows: l Press STORE once, “STORE” and “No.xxxx” appears to confirm the operation and the upper right secondary display shows the current measurement reading.
Model UT804: OPERATING MANUAL Recalling Stored Readings Use the following procedure to recall the stored reading: l Press RECALL to recall the stored value and RECALL appears to confirm the operation. l The upper right secondary display shows the index number “No.xxxx”. l The primary display shows the corresponding recalled data. l The lower right secondary display shows the total number of the stored data. l Press button to enable the SEND feature to export the data to the computer via USB or RS232.
Model UT804: OPERATING MANUAL Chapter 5 Changing the Default Setting Introduction The Meter allows you to change the default operating configuration of the Meter by changing setup options made at the factory. These settings are stored and can be changed in the Setup mode using the procedure described in this chapter. Selecting Setup Options To enter the Setup mode, turn the Meter on and press the SETUP button. It is recommended to change the default setting only when the Meter is at DCV measurement mode.
Model UT804: OPERATING MANUAL Table 5-1. Setup Selections Selection Option Factory Default Description HIGH OFF Over the upper limits, beeps not continuously. OFF Over the lower limits, beeps not continuously. 10 mins 10 mins power off 20 mins power off 30 mins power off Power off feature is disabled Beeps continuously and icon lights on No beep, icon flashes Backlight turn off in 10 seconds Backlight turn off in 20 seconds Backlight turn off in 30 seconds Disable backlight feature. Max.
Model UT804: OPERATING MANUAL Saving Setup Options At each setup Option, store your choice and exit setup by press EXIT, advance to the next Option by press +. To exit the Setup mode without saving the present Option, press Setup.
Model UT804: OPERATING MANUAL Chapter 6 Maintenance This chapter provides basic maintenance information including battery and fuse replacement instruction. B. Replacing the Fuses 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 UT804: OPERATING MANUAL Warning To avoid electrical shock or arc blast, or personal injury or damage to the Meter, use specified fuses ONLY in accordance with the following procedure. Follow Figure 6-1 and proceed as follows to replace the Meter’s fuse: l Switch off the Meter, disconnect the power cord and remove all connections from the terminals. l Remove the fuse cover from the power socket at the Meter’s back, then remove the Fuse 3 by gently prying one end loose, then take out from its bracket.
Model UT804: OPERATING MANUAL C. Replacing the Battery Warning To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the battery indicator “ ” appears when the Meter is under battery operated siutation. When the Meter is under battery operated siutation, battery cannot be re-charged. Make sure the test leads are disconnected from the circuit being tested before opening the case bottom.
Model UT804: OPERATING MANUAL Chapter 7 Specifications Safety and Compliances Maximum Voltage between any Terminal and Grounding Refer to different range input protection voltage Certification Compliances IEC 61010 CAT.I 1000V, CAT.II 600V overvoltage and double insulation standard 54 Fused Protection for µAmA input terminal: 0.5A, 250V, fast type fuse, ø5×20mm Fused Protection for A input terminal: 10A , 250V,fast type fuse, ø5×20mm Fused Protection for power socket: 0.
Model UT804: OPERATING MANUAL Physical Specifications Display (LCD) Operating Temperature Storage Temperature Relative Humidity Altitude Power Electromagnetic Compatibility Dimensions (H x W x L) Weight Digital: 40000 counts on primary display; updates 2-3 times / second. 4000 counts on secondary display. Analog: 40 segments; updates 10 times / second.
Model UT804: OPERATING MANUAL General Specifications Range Polarity Overloading Battery Deficiency Auto Auto Display OL (except at 4~20mA Loop range which display HI or LO) Display Feature Summary Tri Displays Analogue Bar Graph Backlight Autorange AC+DC True RMS, AC RMS Data Hold Continuity Bar Graph Duty Cycle MAX MIN Mode Battery Access Door 56 Primary: 40,000 counts Left Secondary: 4000 counts.
Model UT804: OPERATING MANUAL Basic Specifications Function DC Voltage AC Voltage, True RMS Basic Accuracy DC Current AC Current, True RMS Resistance Capacitance Frequency Temperature STORE Readings Ranges / Description 0 to 1000V 0 to 1000V, 100kHz bandwidth DC Voltage: 0.025% AC Voltage: 0.
Model UT804: OPERATING MANUAL Detailed Accuracy Specifications Accuracy: ( [% of reading] + [number of least significant digits] ), guarantee for 1 year. o o Operating temperature: 18 C~28 C Relative humidity: 75%RH A. DC Voltage Range Resolution 400mV 0.01mV Accuracy Overload Protection Input Impedance Around 2.5GΩ (0.025%+5) under REL mode 58 4V 0.0001V 40V 0.001V 400V 0.01V 1000V 0.1V 1000V (0.05%+5) (0.
Model UT804: OPERATING MANUAL B. AC Voltage (AC+DC measurement is available) Range Resolution Bandwidth Accuracy 4V 0.0001V 40V 0.001V 400V 0.01V 1000V 0.1V 45Hz~1kHz >1kHz~10kHz >10kHz~100kHz 45Hz~1kHz >1kHz~10kHz >10kHz~100kHz 45Hz~1kHz >1kHz~10kHz >10kHz~100kHz 45Hz~1kHz >1kHz~5kHz >5kHz~10kHz (0.4%+30) (1.5%+30) (6%+30) (0.4%+30) (1.5%+30) (6%+30) (0.4%+30) (5%+30) Not Specified (1%+30) (5%+30) (10%+30) Remarks: l Input Impedance: Approx 10MΩ l Overload Protection: 1000V.
Model UT804: OPERATING MANUAL a) b) c) d) e) True rms are valid from 10% of range to 100% of range AC crest factor can be up to 3.0 except 1000V where it is 1.5. A residual reading of 80 digits with test leads shorted, will not affect stated accuracy. The accuracy guarantee range 10%-100%. When making AC+DC measurment, the accuray need to add (1%+ 35 digits) of reading based on the above table. C. DC Current Range Resolution 400µA 4000µA 40mA 400mA 10A 0.01µA 0.1µA 0.001mA 0.01mA 0.
Model UT804: OPERATING MANUAL D. AC Current (AC+DC measurement is available) Range Resolution Bandwidth Accuracy 400µA 4000µA 40mA 400mA 0.01µA 0.1µA 0.001mA 0.01mA 45Hz~1kHz >1kHz~5kHz >5kHz~10kHz (0.7%+15) (1%+30) (2%+40) 10A 0.001A 45Hz~1kHz >1kHz~ 5kHz >5kHz~10kHz (1.5%+40) (2.5%+40) (5%+40) Overload Protection 0.
Model UT804: OPERATING MANUAL E. Resistance Range Resolution 400Ω 4kΩ 40kΩ 400kΩ 4MΩ 40MΩ 0.01Ω 0.0001kΩ 0.001kΩ 0.01kΩ 0.0001MΩ 0.001MΩ Accuracy (0.3%+40)+test leads open circuit value (0.3%+40) (0.5%+40) (1%+40) (1.5%+40) F. Continuity Test Range Resolution Overload Protection 0.01Ω 1000V Remarks: l Open circuit voltage approximate 1.2V. l The buzzer does not sound when the test resistance is 50Ω. l The beeper comes on continuously for open conditions, that is test resistance is 10Ω.
Model UT804: OPERATING MANUAL G. Diode Test Range Resolution Overload Protection 0.0001V 1000V Remarks: l Open circuit voltage approximate 2.8V. l A good silicon junction drops between 0.5V and 0.8V. H. Capacitance Range Resolution 40nF 0.001nF 400nF 4µF 40µF 400µF 4mF 40mF 0.01nF 0.0001µF 0.001µF 0.01µF 0.0001mF 0.001mF Accuracy Overload Protection (1%+20)+ capacitance value of open circuit test leads (1%+20) 1000V (1.
Model UT804: OPERATING MANUAL I. Frequency Range Resolution 40Hz 400Hz 4kHz 40kHz 400kHz 4MHz 40MHz 400MHz 0.001Hz 0.01Hz 0.0001kHz 0.001kHz 0.01kHz 0.0001MHz 0.001MHz 0.01MHz Accuracy (0.
Model UT804: OPERATING MANUAL J. Duty Cycle Range Resolution 100% 0.01% Accuracy (0.01%+40) Overload Protection 1000V Remarks: l It is valid from 10% of range to 90% of range. l Input amplitude “a” as follows; (DC electric level is zero) When 10Hz~40MHz : 200mV a 30Vrms; When 40MHz : Not specified K. Temperature 1-1. Degrees Celsius Range o Resolution o -40 C~40 C o o 40 C~400 C o o 400 C~1000 C o 0.1 C Accuracy (3%+30) (1%+30) 2.
Model UT804: OPERATING MANUAL 1-2. Fahrenheit Range o Resolution o -40 F~32 F o o 32 F~752 F o o 752 F~1832 F o 0.1 F Accuracy (4%+50) (1.5%+50) 3% Overload Protection 1000V Remarks: l Included is a K-Type (nickel chromium~nickel silicon) point contact temperature probe which could only measure o o temperature below 230 C. If you want to measure temperature higher than 230 C, you must use the rod contact temperature probe. L. 4~20 mA loop current Range Resolution (4~20mA)% 0.
Model UT804: OPERATING MANUAL ** END ** This operating manual is subject to change without notice.
Model UT804: 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.
