UNI-T Ut195 Professional Multimeters Instruction Manual

UNI-T Ut195 Professional Multimeters

Preface

Dear Customers:
Thank you for purchasing this brand new Uni-Trend instrument, for the purpose of using the instrument properly, we ask you to read this instruction manual carefully and thoroughly before putting this instrument into service, especially the sections related with “Safety Precautions”. After you have read this instruction manual thoroughly, we suggest you place this instruction manual at a convenient location for future reference .

Limited Warranty Liability

Uni-Trend Technology (China) Limited will guarantee this product is free from any defect in material and process within one year from the date of purchase. This warranty is not applicable to fuse, disposable batteries, or any damage resulted from any accident, negligence, misuse, retrofitting, contamination, misoperation or handling. The dealer shall not be entitled to give any other warranty in the name of Uni-Trend. If warranty service is required within warranty period, please contact your nearest service center authorized by Uni- Trend to obtain authorized information on return of the product; then send the product together with the description of problems to that service center. This warranty is the only compensation that you can obtain. Otherwise, Uni-Trend will not provide any expressed or implied guarantee, such as the implied guarantee to certain specific item. Meanwhile, Uni-Trend will not be responsible for any special incidental or indirect damage or loss that is caused by any reason or speculation. As some areas or countries do not allow to implied guarantees and collateral or limit incidental or subsequent damage, above limitation of liability and stipulation may not applicable to you.

lntroduction

UT195 series are hand-held industrial grade digital multimeter that are highly reliable, safe, and durable. It is designed with IP65 rating and 2 meter drop proof. It is a multimeter of 3 5/6 digit true RMS with large multiple display screen and auto ranged. It can measure AC/DC voltage or current, resistance, diode, circuit continuity, capacitance, frequency, duty ratio, temperature (UT195M), and motor phase voltage (UT195M/UT195DS). Required test function and trouble-shooting function can be realized in petroleum, chemical and aviation, strong electromagnetic field, and other harsh working environments. This series of multimeter is German GS certified.

Features

1. Completely sealed, protection level is IP65.
2. Withstand 2 meters fall.
3. Dustproof, comply with IEC60529 IP65
4. Waterproof, comply with IEC60529 IP65 and IEC over voltage electrical safety standard 61010-1 :2001.
5. Large LCD dual mode display, 6,000 counts dual slope analog-to-digital converter (for conversion rate, UT195E: 3 times/second, UT195M: 3 times/second, UT195DS: 5 times/second).
6. Full function measurement error protection, enabling to sustain lightning impulse voltage more than 8kV.
7. True Root Mean Square (TRMS) AC voltage and current can precisely measure non-linear sign
8. AC+DC measurement mode: AC+DC (AC is combined with DC), defined as the square root of✓ AC +DC
9. AC voltage peak capture (250 µ s) measurement.
10. The AC and DC voltage and current up to 1000V and 20A can be measured (pay attention to the alarm prompt).
11. LOW PASS FILITER guarantees precise measurement of voltage and frequency of variable speed drivers (VSD) (for UT195DS).
12. MOTOR TEST three phase rotation test can identify motor phase (UT195M UT195DS).
13. LoZ voltage measurement, which provides a low impedance to the conductor circuit to get more accurate measurement and detects ghost voltage.
14. Resistance, continuity and diode 3.6V (only for UT195E) test voltage.
15. Capacitance range is 60.00mF.
16. Capture MAX/MIN, mean, and peak values and automatically record the transients and changes.
17. Relative REL mode which eliminates the interference of test conductor in resistance measurement.
18. Manual and auto select range that allows maximum flexibility.
19. Auto backlight function. Turn on and off the LED backlight automatically according to the brightness of environment.
20. Battery Service Life – with no backlight:
    • UT195E=120 hours (alkaline battery)
    • UT195M=72 hours (alkaline battery)
    • UT195DS=82 hours (alkaline battery)

Accessories

Open the package box, take out the meter, and check whether the following accessories are missed or damaged. If any missing or damage is found, please contact your supplier immediately.

1. Instruction Manual—————————-1
2. Probe ——————————– 1 pair
3. Point K type (nickel-chromium~ nickel-silicon) thermocouple (only for UT195M) 1

Safe Operation Rules

1. Safety Certification
2. CE, TUV/GS certification standards:

  * EN 61010-1:2010,
  * EN 61010-2-030:2010
  * EN 61010-2-033:2012
  * EN 61010-031:2015
  * EN 61326-1:2013
2. CAT Ill 1000V CAT IV 600V
3. Pollution level 2
4. Double insulation safety standar

2. Before Operation
   Prior to operating this instrument, read this instruction manual carefully and follow the requirements. Store this manual in a proper place so as to refer it when necessary. Send this manual with the instrument to all subsequent users.

3. Safety Instructions and Precautions

4. This instrument can be operated and maintained only by trained professionals.

5. To prevent electric shock, when the operating voltage is more than 30Vrms DC or AC, the preventive measures should be taken.

6. The measuring instrument can only be used in line circuit of< 20A; its nominal voltage is 1000V (CAT Ill).

7. For the purpose of safe connection, the nominal cross-section of the cable to be connected should be taken into consideration.

8. Measuring dangerous electric device should be carried out under the guidance of qualified electrician only.

9. Only the restrained control area on this instrument can be touched, the display elements should not be covered.

10. If it becomes necessary to open the instrument to replace the fuse, it should be conducted by qualified professional. Before opening the instrument, turn off the power supply to the instrument, and disconnect all circuit connection.

11. Do not modify this instrument without authorization.

12. Only the accessories supplied with this product or same specification can be used.

13. Any change or modification to this instrument will result in voiding all warranty and guaranteed claim from the manufacturer.

14. Do not use this instrument in explosive environment.

15. Prior to use, always inspect whether the instrument is in peak operating sequence or not. Carry out measuring by connecting the instrument with a given power supply.

16. It is forbidden to use this instrument if the battery compartment is open.

17. Inspect the batteries before use or replacement.

18. The storage space should be kept dry.

19. On condition that leakage with the battery occurs, do not use this instrument before our customer service department carries out inspection.

20. Battery acid (electrolyte) is alkaline, and conducts electricity. There may be risk of skin burn if battery leaks! In case the battery acid contacts with your skin or clothing, immediately wash with large amount of water thoroughly. If the battery acid enters your eyes, immediately wash with large amount of water and seek medical advice in time.

21. In condition that cannot guarantee the safety of operator and those around, stop using this instrument.
    For example:

  * The case is smashed
  * Test leads are damaged
  * Leakage with battery
  * Storage in improper place for a long time

4. Range of Applications
   This instrument complies with standard of CAT Ill measuring category and rated voltage of 1000V.
   CAT Ill measuring category is used in three phase distribution circuit, such as indoor commercial lighting circuit, industrial equipment switchboard, multiphase motor and multiphase electrical systems.
   This instrument complies with standard of CAT IV measuring category and rated voltage of 600V.
   CAT IV is used in outdoor three-phase utility power supply equipment that is initially connected, such as power distribution system of power station, over- current protection device before the power instruments, instruments of equipment connected with outdoor building.
   The rated voltage for probe assembly used in main line measurement should comply with measurement category Ill and IV of IEC 61010-31, and the rated voltage should be maximum voltage of the circuit to be measured.
   This instrument should be used in the application field limited in this manual. Any deviation from this application should be considered to be improper and not inspected, and may result in accident or damage to the instrument. Any improper use may completely void the claim to “dealer” and the right of warranty. The manufacturer will not liable for property damage and personal injury caused by following reasons:

5. Not follow the instruction manual

6. Modify the instrument without prior approval from the manufacturer

7. Use accessories without prior approval from the manufacturer

8. Use this instrument under the influence of alcohol, drugs and medicines

9. It is not allowed to use this instrument in following conditions:

10. Potential explosive environment: This instrument is not explosion-proof!

11. In case of raining or other rainfall: Risk of electric shock!

Electrical symbols

1. Device Safety Identification
2. UT195DS LCD Full Display Symbol (UT195E/UT195M are neglected)UT195E/UT195M/UT19SDS INSTRUCTIONS

Comprehensive Specifications

1. Overload protection voltage between various input terminals and grounding is 1000V.
2. 20A Terminal (CE): FF 11A H 1000V fast-melting fuse (©10×38) mm
3. mA/A Terminal (CE): FF 600mA H 1000V fast-melting fuse (Ф6×32) mm
4. Maximum Display: 6000 bits
5. Update Rate: UT195E/UT195M 3 times/second, UT195DS: 5 times/second over-range displays “OL”.
6. Others
   • Range: MANUAL/AUTO
   • Polarity: Automatic
   • Operation Temperature: 0°C-40°C (32F -1047°F)
   • Storage Temperature: -10°C~50°C (14°F ~122*F)
   • Relative Humidity: 0°C ~ 30°C below is < 75%, 30°C ~ 40°C <50%
7. Operation Altitude: 0-2,000 m
8. Batteries in the unit: 6F22 9V
9. Low Battery: LED displays or symbol
10. Overall Dimension: About (195×95×58) mm
11. Weight: About 473g (including batteries)
12. Electromagnetic Compatibility:
    Under 1V/m radio-frequency field: Total accuracy = specified accuracy + 5% of range, there is no specified specification in radio-frequency field of 1V/m and more.

Overall Configuration

1. Auto backlight sensing window
2. LCD display
3. Function button
4. Function selection switch
5. Measurement input terminals
6. Strap hook
7. Flashlight window
8. Multimeter probe locating stand
9. Battery cabinet fixing screw
10. Case support

Function Selection, Button Definition, and Dual Display Mode

Feature Selection

Button Definition:

• RANGE Button: Press to change Auto/Manual range, it will jump upward one stall when it is pressed once, and jump to minimum range when pressing at maximum range. If this button is pressed for more than 2 seconds or changed by rotary disc, it will exit the manual range mode. (Only suitable for:  ).
• MAX MIN Button: Press to enter manual range mode and display the maximum value, press it again to display the minimum value, and press it again to display maximum and minimum value. If this button is pressed for more than 2 seconds or changed by rotary disc, it will exit the data record mode. (Only suitable for: °C/F).
• REL Button: Press to enter MANUAL range mode. Take the current displayed value as reference, the different value between measurement value and reference value will be displayed. Press it again to exit relative measurement. (Only suitable for: ).
• HOLD Button: (suitable for full range) Press this button, displayed value is locked and held, LCD will display ” ” indicator. Press it again, the lock is released and enter normal measurement mode.
• A-OFF Button: Auto turn off backlight function. If need to restart the backlight function, turn function knob to OFF stall and restart.
• LIGHT Button: Turn on or off the flashlight lighting function.
• Hz% Button: Select Hz or % measurement mode.
• PEAK Button: Voltage peak Vp-p, and current peak measurement. Current peak Ip-p: Catch maximum value of signal current when measuring (PEAK-max/PEAK-min) Remarks:

This function has the same recording mode as that of MAX MIN, but the largest difference between them is that the response time for the peak (PEAK) record is much shorter (250us).
When measuring the actual peak of a sine wave signal, the recording function of the peak can measure the surge of the power supply much more accurate, the transient value of surge.

SELECT Button: Press to select function (only suitable for combined range). Long press SELECT button when powering on the meter, Auto-OFF function can be cancelled.

Operation Instruction of Dual Display Mode (only for UT195DS):

AC+DC measurement:
In DC mode, short press SELECT button to enable AC+DC mode: Main display shows AD+DC value, the secondary display will automatically switch to show ACV or DCV value with a time interval of 2s.Voltage Measurement Function
In ACV mode, main display shows ACV value, the secondary display shows frequency. Short press “SELECT” button to enter L-Pass Filter function, main display shows voltage value and the secondary display shows frequency. Motor rotation direction and phase sequence measurement

In ACV voltage mode, long press SELECT button for more than 2 seconds to enable motor rotation direction function. Main display shows the current voltage value and the secondary display shows operation frequency.
When resting Motor function, short press SELECT button once to enable phase sequence measurement.
Long press SELECT button (more than 2 seconds) to exit Motor function.
Steps: Phase sequence measurement (Detection condition: Above AC 80V, frequency is 40Hz to 80Hz, and it will keep on waiting if the range is exceeded).

• a. In ACV mode, press and hold SELECT button for at least 2 seconds automatically, then automatically jump to 600.0V range and wait for input signal. It will keep on waiting if there is no input.
• b. After the first phase sequence is measured and locked, insert the probe into another phase, the LCD displays 1-+2-+3 or 3-+2-1; if not move the probe to change input signal, it will time out in 5 seconds.
• c. Press SELECT button for at least 2 seconds to automatically exit phase sequence mode.
  Press SELECT button (for at least 2 seconds) to exit Motor function.

PEAK Value Measurement
Press PEAK button in AC mode to enter peak measurement mode: main display shows ACV value, the secondary display shows P-MAX. Short press PEAK button, “P-MAX” and “P-MIN” will be displayed respectively. Long press PEAK button for at least 2 seconds to exit peak measurement function

Measurement Operating Instruction

Check the internal 6F22 9V batteries first, if”” or * ” symbol appear on the screen, replace the
batteries in ume, in acoition, anention should be paid to the symbol beside the probe sockets, this is ic
warn you of not exceeding the indicated number for the measured vorage of current so as to guarantee
the measurement safety!

1. AC/DC Voltage Measurement (See Figure 1)

1. Parallel the meter to the load or measurement
2. When meter input impedance is about 10M , this kind of load may cause measurement error in high when meter input impedance is about TOMe this kind of oad may cause measurement error in high impedance circuit. In most cases, if circuit impedance is less than 10 , the error can be ignored (0.1%

Low Pass Filter (LPF) Measurement (for UT195DS)

1. Parallel the meter to the load for measurement.
2. In ACV mode, press SELECT button to enter LOW PASS FILTER, this filter can intercept voltage higher than 1kHz. As shown in the following figure. the low pass filter can measure the combined sine wave signal generated by the inverter and variable frequency motor.

PEAK Value Measurement (for UT195DS)

1. Parallel the meter to the load for measurement.
2. Press PEAK button once to activate the peak value detection function. Response time of capture is 250 s,
   it can precisely measure the transient values of P-MAX and P-MIN. Long press PEAK button to exit peak measurement.

MOTOR Phase Sequence Measurement Function (See Figure 2)

1. Parallel the meter to the load for measurement.
2. In ACV mode, long press SELECT button for no less than 2 seconds to enable the MOTOR phase rotation measurement function, at this moment, LCD screen will show flashing” “symbol (only for UT195M/UT195DS).
3. Set the first voltage source for COM terminal, fix the black probe at L3, the red probe will measure L1 for the first time. Wait till the ” ” on the LCD is locked, change the red probe to L2 within 5 seconds, now the 1-2-3 symbol will be displayed on LCD, indicating forward rotation phase sequence.
4. Set the first voltage source for COM terminal, fix the black probe at L3, the red probe will measure L2 for the first time. Wait till the “ ” on the LCD is locked, change the red probe to L1 within 5 seconds, now the 3-2-1 symbol will be displayed on LCD, indicating reverse rotation phase sequence.
5. During the measurement, short press SELECT button once to restart the MOTOR measurement (only for UT195DS). Long press SELECT button for at least 2 seconds again to exit the MOTOR phase rotation measurement function.

Note:

1. Phase sequence measurement condition: Above AC 80V, frequency is 40 Hz to 80 Hz, the flashing ” ” symbol will be displayed on LCD screen and it will
   keep on waiting if range of frequency response is exceeded.

2. Multi-harmonic anti-interference decoding mode is set in the chip of UT195DS products. The high-frequency interference signal will be filtrated by a special filter circuit built in the chip, this will be suitable for the measurement in variable-frequency voltage fields.
   Measurement phase sequence lock time is about 10s more or less.

3. When measuring UT195M products in variable frequency condition, due to the impact of multiple-harmonic PM, measurement phase sequence lock time is much slower (about 30s more or less), and the frequency range is only suitable from 50 Hz to 80 Hz, and the unstable state of phase sequence measuring may occur.

Loz (Low impedance) Measurement

1. Parallel the meter to the load for measurement.

2. To eliminate the stray voltage, the Loz (Low impedance is about 300k) function of meter provides a low
   impedance on the whole conductor circuit so as to obtain much more accurate measurement value. Turn rotation switch to Loz, meter displays AC voltage in main display.
   Note:

   • Do not input voltage higher than 1000Vrms. Much higher voltage is possible to be measured, but the meter may be damaged!
   • When measuring high voltage, special attention should be paid to avoid electric shock!
   • In low pass filter measurement mode, meter will automatically change to manual mode. Press RANGE button to select corresponding range.
   • Measure the known voltage before using the meter to confirm whether the function of the product is correct or not!

Resistance and Circuit Continuity Measurement (See Figure 3a+3b)

Parallel the meter to the measured circuit for measurement.

Note:

• * If open circuit or resistance value of measured resistance exceeds the meter maximum range, the “OL” will be displayed.

  • When measuring online resistance, turn off all power supplies in measured circuit and discharge all residual charges on all capacitors before measurement. In this way, the correct measuring can be assured.

  • In low resistance measurement, probe will cause resistance measurement error of about 0.1 to 0.2 .
    To obtain precise reading, first short-circuit the probes, then use REL relative measurement mode to ensure measurement accuracy.

  • If the resistance value is less than 0.5 when probe is in short circuit, check for any loosening or other causes with the probes.

  • When measuring high resistance, the reading will be stable after a few seconds. This is normal for high

  • Use resistance measurement function can self-check the built-in fuses, see Figure 3b for more detail.

  • Do not input higher than 30V of DC or AC voltage.

  • Circuit continuity measurement: If the resistance between two measured ends is more than 50. the circuit will be considered as open, the buzzer will not sound; if the resistance between two measured ends is no more than 1052, the circuit is considered as good continuity. the buzzer will sound continuous
    Note:

  • When checking the online circuit continuity, turn off all power supplies in measured circuit and discharge all residual charges on all capacitors before measurement.

  • Do not inout voltage higher than DC or AC 30V to avoid personal injury!

Diode Measurement (see Figure 4)

If measured diode is open circuit or polarity is connected reversely, “OL” will be displayed. For silicon PN-junction, it is a normal value of about 500 – 800mV.

Note:

• When measuring on-line diode, turn off all power supplies in measured circuit and discharge all residual charges on all capacitors before measurement.
• Diode test voltage range is about 3.0V (about 3.5V for UT195E)
• Do not input voltage higher than DC or AC 30V to avoid personal injury!

Capacitance Measurement (See Figure 5)

Meter will display a fixed reading when there is no input, this is the intrinsic capacitance value in the meter. For small range capacitance measurement, measured value must subtract this value to guarantee the measurement accuracy. For this purpose, the relative measurement REL function of the meter can be used to subtract it automatically so as to measure reading conveniently.

Note:

• If measured capacitance is short circuit or capacitance value exceeds the maximum range of meter, the OL” will be displayed.
• For large capacitance measurement, it will take several seconds to measure and this is normal.
• Fully discharge the residual charges of the capacitance before measurement, this is much more important for high voltage capacitance.
  This is to avoid meter damage and personal

Frequency/Duty Ratio Measurement (See Figure 6)

At the frequency measurement stall, press Hz/% button can select frequency/duty ratio measurement mode (for UT195E)

Note:

• Do not input voltage higher than DC or AC 30V to avoid personal injury!

Temperature Measurement (Only for UT195M (See Figure 7)

Temperature sensor: Only for K type (nickel-chromium-nickel-silicon) thermocouple. If “OL” is displayed after powering on the meter, connect K type temperature sensor to measure °C (Celsius) or F (Fahrenheit). °F=1. 8 x °C + 32

Note:

• The point K type (nickel-chromium-nickel-silicon) thermocouple provided by the accessories is only suitable for the temperature measurement below 230°C/446°F.

AC/DC Current Measurement (See Figure 8) Connect the meter to the load in series for measurement. AC measurement display value is true RMS.

Note:

• Before connecting the meter to the loop to be measured, turn off the power supply in the circuit
• Proper input port and function position should be used during measurement. if cannot estimate the current. start measurement from high range.
• Fuses are set in 20A and mA/ | A input sockets. Do not parallel the probe to any circuit, especially power terminal, for it will damage the meter and endanger personal safety!
• It is available to continuously measure the current up to 10A. When measuring current of 10A-20A, it should not take more than 30 seconds. It is suggested to wait for 15 minutes before measuring the low current continuously with the meter after measuring the current higher than 10A

Other Functions

• Auto-off: During measurement, if any knob switch is not turned within about 15 minutes, the meter will turn on the auto-off function to save energy. Rotate function switch in auto-off mode, the meter will auto wake up.

• Auto backlight: In case the instrument is placed in a dark environment after turning it on, the backlight function will be turned on immediately. If the instrument is placed in a bright environment again, the backlight function will be turned off in 30 seconds.
  In addition, the auto backlight function will be turned off after pressing OFF button while the backlight is on, if it is necessary to restart the backlight function, just turn off the unit and turn it on again.

• Press and hold SELECT button in power off state and power on the meter, auto-off function will be cancelled. Recover auto-off function to restart.

• Buzzer: The buzzer will sound when measured AC voltage is more than 750 V, DC voltage is more than 1000 V and the current value is more than 20 A.

• Low voltage testing: Detect the internal VDD while the power is supplied, when it is less than 7.5V, or low battery symbol will be displayed.

Technical specifications

Accuracy: ±(a% reading+ b number), warranty period is 1 year.
Environmental Temperature: 23°(±5°( (73.4 °F±9°F) Relative Temperature: ,.;; 75%

Note:
*. Accurate temperature condition is 18°( to 28°(, the fluctuation range of ambient temperature is stable in

DC voltage measurement

±(0.7%+3)

|
600. ov| 0.1V
1000V| 1V
6V~60V| | ±(1.5%+4)AC+DC| Only for UT195DS

Input Impedance: mV range is ;;.1000MQ(;;.1000MO for UT195M) , other ranges are 10MO (mV range short circuit allows numbers more than 5, and other ranges will be reset to zero)
Maximum Input Voltage:± 1000V

AC Voltage Measurement

± (2.0% + 3)

(Only for UT195DS)

| Calculate the deviation based on the measured voltage ± (2.0%+3), then divided by–/2 and obtain the reading range.
AC LoZ 600. 0V| 0. 1V| ± (2.0% + 3)| Input resistance 300KO

PEAK HOLD

| V-peak capture time is 250µs| ± (2%+100)

(Only for UT195DS)

| Input value xH ±(2%+100)
MOTOR 600.0V| 0.1V| ± (1.5%+5)| Only for UT195M/UT195DS

• Input impedance is about 10 M

• Display true RMS.

• Frequency Response: 45-400 Hz (UT195E) 45-1 kHz (UT195M) 45-5 kHz (UT195DS)

• Under the condition of variable frequency power supply, the measured voltage value is only for reference.

• When the measured voltage frequency is greater then 1 kHz the accuracy needs to add 5 words

• Allow the meter to stabilize for 1 minute after LoZ (Low impedance 300K) function is used.

• Guaranteed range of accuracy: range of 5-100%, short circuit is allowed to have remain readings less than 10 digits.

• The AC wave peak factor is up to 3.0 in full value (except 1000V range, this range is 1.5 in full value) . Non-sine waveform:
  Wave peak factor is 1.0 to 2.0, accuracy should be added 3.0%(UT195M/UT195DS is 1.0%).
  Wave peak factor is 2.0 to 2.5, accuracy should be added 5.0%(UT195M/UT195DS is 2.5%).
  Wave peak factor is 2.5 to 2.0, accuracy should be added 7.0%(UT195M/UT195DS is 4.0%).

• Maximum input voltage: 750Vrms

Resistance measurement

± (0.8%+2)

60.00k| 10
600.0K| 100
6.000M| 1k| ± (1.2%+3)
60.00M| 10k| ± (2.5%+5)

Range: Measured value = Displayed value – Probe short circuit value
Overload protection: 1 000V

Circuit Continuity, Diode Measuring

Circuit Continuity, Diode Measuring

0.1!1

| Set resistance value when circuit is disconnected to more than 500, and buzzer does not sound.

Set resistance value when circuit is connected well to no more than 100, and buzzer sound continuously.

….| ****

1mV

| Open-circuit voltage is about 3.0V (UT195E is about 3.5V) The normal voltage value of silicon PN-junction is about

0.5 to 0.8 V.

Overload protection: 1000V

Capacitance measuring

± (4%+10)

| In REL mode

± (3%+10)

| In REL mode

± (3%+10)

60.00nF~600.0µF| 10pF~0.1µF| ± (3%+5)| ± (3%+5)| ± (3%+5)
6.000mF~60.00mF| 1µF~10µF| ± 10%| ±5%| ±5%

Overload protection: 1000V
It is suggested that measured capacitance no more than 1F should be measured in REL measurement
mode to ensure measurement accuracy.

Frequency/Duty Ratio Measurement

Temperature measurement (Only for UT195M)

Overload protection: 1000V
Remarks: The point K type (nickel-chromium-nickel-silicon) thermocouple provided by the accessories is only suitable for the temperature measurement below 230°C/446°F.

DC Current Measurement

±(0.8%+3)

6000µA| 1µA
mA| 60.00mA| 10µA
600.0mA| 0.1mA

A

| 6.000A| 1mA| ±(1.0%+3)
20.00A| 10mA| ±(1.2%+5)

Available to continuously measure the current up to 10 When measuring the current of 10A-20A, it should not take more than 30 seconds, we suggest to wait for 15 minutes before measuring the low current continuously with the instrument after measuring the current of more than 10A.

Overload protection:

µA mA range: F1 fuse (<!>6×32) mm FF 600mA H 1000V (CE)
20A range: F2 fuse (<1>10×38) mm FF 11A H 1000V (CE)

AC Current Measurement

Available to continuously measure the current up to 10 A. When measuring the current of 10A-20A, it should not take more than 30 seconds, we suggest to wait for 15 minutes before measuring the low current continuously with the instrument after measuring the current of more than 10A.

Frequency response: 45-400 Hz (UT195E)

45-1 kHz (UT195M)

45-5 kHz (UT195DS)

Display true RMS.

Accuracy Guaranteed Range: range of 5-100%, short circuit is allowed to have remain readings less than 2 digits. The AC wave peak factor is up to 3.0 in full value.
Non-sine waveform: Wave peak factor is 1.0 to 2.0, accuracy should be added 3.0% (UT195M/UT195DS is 1.0%). Wave peak factor is 2.0 to 2.5, accuracy should be added 5.0% (UT195M/UT195DS is 2.5%).
Wave peak factor is 2.5 to 2.0, accuracy should be added 7.0% (UT195M/UT195DS is 4.0%).
&Overload protection: (Overload protection for similar DC current measurement)

Maintenance and Repair

Warning: Before opening the back cover of the instrument, ensure that the power supply has been turned off and probes have been removed from the input ports and the measured circuit.

General Maintenance and Repair

• Please use wet cloth and gentle cleaning agent to clean the case, do not use grinding agent or
• If any abnormality is found with the meter, stop using it and send it for
• If need to check or repair the meter, please ask for qualified special maintenance personnel or authorized maintenance department.

Batteries and Fuse Replacement

If LCD display show under voltage or symbol, replace the built-in batteries immediately, otherwise the measurement accuracy will be influenced. Battery specification is 6F22 9V.

Operation Steps:

1. Set the power switch to “OFF”, remove the probes from the input sockets, and take away the protective
2. Use a screwdriver to unscrew 3 fixed screws in the battery back cover, remove the battery back cover and Under voltage old batteries and blown fuse:

F1 fuse (<P6 x 32) mm FF 600mA H 1000V (CE)
F2 fuse (<P10 x 38) mm FF 11A H 1000V (CE )

Manufacturer:

Uni-Trend Technology(China) Limited No 6, Gong Ye Bei 1st Road Songshan Lake National High-Tech Industrial Development Zone, Dongguan City Guangdong Province China Postal Code:523 808

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

http://www.uni-trend.com

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