Tenma 72-3540 Manual Download

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PRODUCT OVERVIEW

1. Case
2. LCD
3. Function keys
4. Rotary switch
5. Input terminals

Function

Description

1. Label of function keys

Indicates auxiliary functions under current measuring

interface

2. Simulation bar

Analogue display of input signals

3. Minus sign

Indicates negative reading

4. Lighting symbol

Danger - High voltage

5. Time and date

Indicates the time and date set in internal clock

6. Small measurements

Real-time input values are displayed when the primary

7. Telecommunication

Indicates the time and date set in the internal clock

8. Buzzer

Indicates the button sound is enabled

9. Battery capacity

Indicates the capacity level of rechargeable battery

10. Range indicator

Indicates the current range and range mode for the meter

11. Unit

Indicates the measurement unit

12. Aided function display Indicates the aided measuring function, such as LPF

13. Aided display

Indicates the aided measuring information on input

signals

LCD

WHAT’S INCLUDED

•

One Datalogging Multimeter

•

A pair of test leads

•

Two K type temperature probes

•

One user manual

•

One temperature connector

•

One charging adaptor

•

One charging connector

•

One USB cable

•

One CD

•

One zip bag

Summary of Contents for 72-3540

Page 1: ...1 True RMS Datalogging Multimeter Model 72 3540 ...

Page 2: ...C Voltage 9 DC Voltage 9 AC Voltage DC Voltage 10 AC Current 10 DC Current 10 AC Current DC Current 11 Resistance 11 Capacitance 12 Conductance 12 Temperature 12 Frequency 12 Duty Cycle 13 Pulse Width 13 Continuity Test 13 Diode Test 13 Measurement Operations Meter Power Control 14 Meter Settings 16 AC Voltage 16 DC Voltage 17 AC DC Current 17 Resistance 18 Conductance 19 Capacitance 19 Continuity...

Page 3: ...cle Measurement Pulse Width 21 Temperature 21 LPF Measurement 22 dBV 22 dBm 22 Maximum Minimum Value 23 Relative Value 23 Peak Detection 23 Compare Mode Comp 24 Recording Measurement Data 26 Communication 27 Cleaning Maintenance 28 Charging the Battery ...

Page 4: ...or repair Do not store or use the meter in an environment of high temperature humidity inflammable explosive and strong magnetic field When using the probes keep your fingers behind the finger guards Do not use the low pass filter to verify hazardous voltage for there may be a voltage over the indicated value Firstly measure the voltage to check whether it is hazardous in the case of not connectin...

Page 5: ...ommunication Indicates the time and date set in the internal clock 8 Buzzer Indicates the button sound is enabled 9 Battery capacity Indicates the capacity level of rechargeable battery 10 Range indicator Indicates the current range and range mode for the meter 11 Unit Indicates the measurement unit 12 Aided function display Indicates the aided measuring function such as LPF 13 Aided display Indic...

Page 6: ... access the Help menu Press the button change the backlight brightness Press and hold to turn off the backlight INPUT TERMINALS Terminal Description A Input terminals for measuring the current maximum duration is 30 seconds for 20A overload and suspend for 10 minutes and frequency from 0A to 10 00A µA mA Input terminals for measuring the current and frequency from 0A to 600mA COM Common terminals ...

Page 7: ...ment of mA in AC DC and AC DC A Measurement of ampere in AC DC and AC DC Battery charge GENERAL SPECIFICATION Max voltage between any terminal and ground 1000V Fuse protection of mA or µA input terminals 0 8A H 1000V fuse type 6 x 32mm Fuse protection of A input terminals 10A H 1000V fuse type 10 x 38mm Max display 60000 Range Auto manual Polarity Auto Operating temperature 20 C 50 C Storage tempe...

Page 8: ...I 1000V CATIV 600V IP rating IP65 ELECTRICAL SPECIFICATION Accuracy reading digits one year calibration period If the temperature variation of environment reaches 5 C the accuracy can be adopted after 2 hours Ambient temperature 23 C 5 C Ambient humidity 75 RH Temperature coefficient 0 1 x accuracy C 18C or 28 C AC VOLTAGE Range Resolution Accuracy Tolerance reading digits 60mV 0 001mV 45 1kHz 1k ...

Page 9: ... 025 5 6V 0 0001V 60V 0 001V 600V 0 01V 0 03 5 1000V 0 1V AC VOLTAGE DC VOLTAGE Range Resolution Accuracy Tolerance reading digits 60mV 0 001mV 50 1kHz 1k 10kHz 10k 20kHz 1 80 1 2 60 3 60 600mV 0 01mV 45 1kHz 1k 10kHz 10k 20kHz 0 3 30 1 2 40 3 40 6V 0 0001V 45 1kHz 1k 10kHz 10k 20kHz 0 3 30 1 2 40 3 40 60V 0 001V 45 1kHz 1k 10kHz 10k 20kHz 0 3 30 1 2 40 3 40 600V 0 01V 45 1kHz 1k 10kHz 10k 20kHz 0...

Page 10: ...e type ɸ 10x38mm Switch on for 30 seconds and suspend for 10 minutes for 20A Not specified for over 10A DC CURRENT Range Resolution Accuracy tolerance reading digits 600µA 0 01µA 0 08 10 6000µA 0 1µA 0 08 10 60mAV 0 001mA 0 08 20 600mAV 0 01mA 0 15 10 10A 0 001A 0 5 10 Overload protection µAmA range 0 8A H 1000V fuse type ɸ 6x32mm 10A range 10AH 1000V fuse type ɸ 10x38mm Switch on for 30 seconds a...

Page 11: ...nds Allow 10 minutes to discharge between measurements Do not attempt measurements over 10A RESISTANCE Range Resolution Accuracy tolerance reading digits 600Ω 0 01Ω In REL state 0 05 10 6kΩ 0 0001kΩ 0 05 2 60kΩ 0 001kΩ 600kΩ 0 01kΩ 6MΩ 0 0001MΩ 0 3 10 60MΩ 0 001MΩ 2 10 Overload protection 1 000V Humidity 50 CAPACITANCE Range Resolution Accuracy tolerance reading digits 6nF 0 001nF 3 10 60nF 0 01nF...

Page 12: ...asurement can be performed via temperature connectors Temperature sensor Applicable to K type thermocouple Spare parts are point contact K type thermocouple only applicable to the measurement when temperature is below 230 C FREQUENCY Range Resolution Accuracy 60Hz 0 001Hz 0 02 8 600Hz 0 01Hz 0 01 5 6kHz 0 0001kHz 60kHz 0 001kHz 600kHz 0 01kHz 6MHz 0 0001MHz 60MHz 0 001MHz Overload protection 1000V...

Page 13: ...not sound Overload protection 1000V DIODE TEST Range Resolution Remark 0 0001V Open circuit voltage is around 3V The forward voltage drop value of the measured PN junction is approximately 3V When the buzzer activates it will beep briefly for the normal semiconductor junction If the semiconductor junction shorts out it will beep continuously Silicon PN junction drops between 0 5 0 8V as the normal...

Page 14: ... OFF auto power off will be disabled Power Saving Mode Set the brightness down display off and power off times for backlight brightness via the AUTO POWER SAVE option METER SETTINGS Press the function button SETUP to set and view the relevant information on the meter Press the directional buttons to select the relevant menu items of the meter as follows Keypad Tone Set to ON to enable button sound...

Page 15: ...ss the function button OK to confirm the above settings To cancel the setting press the function button CANCEL More Settings Press the function button ENTER to set the language memory format reset the meter settings check the product model serial number and available memory space Press the directional buttons to select the relevant menu items for the meter as follows Help Menu Language Press the f...

Page 16: ...nnect the connection between the test leads and the circuit under test The response mode of AC coupled true RMS is adopted for the conversion of AC with sinusoidal input calibration The accuracy of non sinusoidal wave must be adjusted based on the following For crest of 1 4 2 0 the accuracy should be adjusted by 1 0 For crest of 2 0 2 5 the accuracy should be adjusted by 2 5 For crest of 2 5 3 0 t...

Page 17: ...ween the options The red cursor button indicates the selected item Warnings Before connecting to the test circuit in series turn off the power to the circuit first and discharge all the high voltage capacitors Use proper input terminals and functions for measurement If the current size cannot be estimated the range of large current should be measured first When the test lead is inserted into the i...

Page 18: ...asurement of high resistance In order to obtain stable readings short test lines can be used for the measurement Do not input a voltage higher than 30V in AC rms AC peak 42V or 60V in DC to avoid personal injury After completing all of the measuring operations disconnect the connection between the test leads and the circuit under test CONDUCTANCE Insert the red test lead into the Ω terminal and th...

Page 19: ...der to avoid personal injury After completing all of the measuring operations disconnect the connection between the test leads and the capacitor under test Insert the red test lead into the Ω terminal and the black test lead into the COM terminal Set the rotary switch to the measurement Ω nS and press the SELECT button to enter one of the sub menu options If pressing the SHORT button then the buzz...

Page 20: ...e measured circuit must be shut off before measurement and all of the capacitors must be discharged Open circuit voltage of the diode test is around 3V Do not input a voltage higher than 30V in AC rms AC peak 42V or 60V in DC to avoid personal injury After completing all measurement operations disconnect the connection between the test leads and the circuit under test FREQUENCY DUTY CYCLE MEASUREM...

Page 21: ...probes after completing all of the measurement operations LPF MEASUREMENT Insert the red test lead into the V terminal and the black test lead into the COM terminal Set the rotary switch to Ṽ and connect the test leads to the lower or load to be tested in parallel as shown right Press the function button MENU to view the menu options Use the cursor buttons to select Low Pass then press the MENU fu...

Page 22: ... button to enter one of the menu options Press the cursor buttons to select the menu option dBm A reference impedance resistance must be used for the measurement of dBm to calculate dB value on the basis of 1mW Press the function button RES to select a reference impedance value Use the or button to scroll between the 10 defined reference values 4 8 16 25 32 50 75 600 1000 and 1200 Press the functi...

Page 23: ...EDIT to enter the setting mode of compare types Press or to set one of the four types as follows Inner low value input value high value Outer input value low value or input value high value value value Press the function button OK to confirm the above settings To cancel the settings press the function button CANCEL Beep Mode Press the function button EDIT to enter buzzer start mode Press or to sel...

Page 24: ...lower right corner Delete All Save Press the function button DELETE to delete all one time recorded data Press the function button YES to confirm To cancel the operation press the function button NO Record Press the function button ENTER to enter the continuous recording mode with maximum recording pieces up to 10 000 Press or and move the cursor to select the three settings as follows Edit Name P...

Page 25: ...yed in hours minutes seconds Samples Total recording points for present recorded events Start Time and date from the start of the recording To manually stop recording press the function button STOP When you ve stopped recording return to the menu and you can view the relevant operations in the following menu View Record Press SAVE and then select VIEW RECORD from the sub menu in order to see the r...

Page 26: ... or hold the F2 button to move the cursor left and F3 to move the cursor to the right The cursor will move one data to the left or right for each press Hold down F2 or F3 to speed the cursor up Press or to scale the graph vertically and or to scale the graph horizontally Press the F1 button to delete this record and again YES to confirm or NO to cancel the deletion Delete All Record Press the func...

Page 27: ...current input If the message Lead Error connection error for test lead appears it shows that the probe tip is inserted too deeply into the terminal of current input Draw out the test lead a little until the error message disappears and OL overload or the resistance reading appears on the display If the resistance reading for the A terminal is less than 0 5Ω it shows that the fuse F2 is normal If t...

Page 28: ...he battery is fully charged the red light is off and it will no longer charge Made in China www premierfarnell com V 1 0 INFORMATION ON WASTE DISPOSAL FOR CONSUMERS OF ELECTRICAL ELECTRONIC EQUIPMENT This symbol indicate that separate collection of Waste Electrical and Electronic Equipment WEEE or waste batteries is required Do not dispose of these items with general household waste Separate for t...

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