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ET324X/ET325X Series Digital Benchtop Multimeter

Short Description:

ET324X/ET325X Series is a fully functional and stable TRV digital multimeter, which provides powerful functions, excellent performance and good user experience; 3.5 inch TFT LCD screen display, clear reading, rich content, has good display effect. This table is driven by municipal power supply to make it a high reliability digital table. Full-function, full-range overload protection and unique appearance design make it the first choice for electricians and University laboratories. There are 9 models in the whole series (see table below).


Product Detail

Product Tags

Model description

Conventional model

ET124X Series Enhanced Model

ET125X Series Enhanced Model

Model

ET3240

ET3255

ET3241

ET3241B

ET3242

ET3243

ET3256

ET3257

ET3258

Reading display

4 ½

5 ½

4 ½

4 ¾

4 4/5

4 5/6

5 ½

5 4/5

5 5/6

Basic characteristics

¤ Using 3.5 inch TFT LCD display (resolution 320*480), the brightness of the screen can be adjusted.

¤ Language switching between Chinese and English

¤ Two-parameter display can display two parameters of the same input signal (for example, AC voltage value and AC frequency

value can be displayed simultaneously under AC voltage measurement)

¤ Overrange display: 120% of range

¤ The measuring and displaying speed can be adjusted, which can be divided into three kinds: fast, medium and slow.

¤ Measurement of AC/DC Voltage, AC/DC Current and 2/4 Line Resistance

¤ The maximum DC current is 12A and the maximum DC voltage is 1100V.

¤ Periodic and frequency measurements, maximum frequency 20 MHZ

¤ Capacitance measurement, maximum 10 mF

¤ True RMS AC voltage and AC current measurements, bandwidth up to 100 kHz

¤ Provide automatic, external, single trigger three trigger measurement methods

¤ With AC+DC measurement

¤ Optional manual or automatic range

¤ Function of square wave output and duty cycle measurement

¤ Setting function: Language, buzzer, screen brightness, etc. can be set

¤ Twelve Mathematical Functions: MX+B, MAX, MIN, Average, dB, dBm, REL, Hold,%, Limit Comparison, Statistics, Reciprocal

¤ External calibration function to support user self-calibration

¤ Supporting a variety of sensors: 10 thermocouples, 4 thermal resistors

¤ Support for custom sensors

¤ Graphic display: real-time curve, histogram, bar graph, etc.

¤ With reading retention function

¤ Supporting SCPI protocol and providing programming documentation

¤ Data Memory Storage and Reading Function for Easy Viewing of Data Information

¤ Multiple communication modes: RS232, USB Device, GPIB, USB Host, LAN, WIFI, Bluetooth

¤ Built-in temperature sensor for cold-end compensation, support automatic and manual compensation.

General technical specifications

¤ Power supply voltage: 220V AC ± 10%, 110V AC ±10%, 45-65Hz;

¤ Display: 3.5 inch TFT LCD screen, resolution 480x320, color 16M;

¤ Operating Temperature: 0~40 ℃;

¤ Storage environment: - 10~50 ℃;

¤ Relative humidity <80%;

¤ Interface: ET124X Standard - USB Device, ET125X Standard - USB Device, RS232, other optional - GPIB, USB Host, LAN, Wifi, Bluetooth;

¤ Shape size: 265 mm * 105 mm * 305 mm (width * height * depth);

¤ Weight: 2.3kg

Standard accessories

¤ Three core power cord*1(30A51)

¤ Three core pen*1(32A52)

¤ Backup power fuse*2(32A52)

Optional accessories

¤ GPIB cable

¤ Cabinet installation kit

¤ Rs232 serial port line

¤ USB data line

Technical indicators Table 1(ET3240、ET3255)

Model

ET3240

ET3255

Display screen

3.5” TFT LCD (resolution of 320*480)

Number of display digits

24000(4 1/2)

240000(5 1/2)

Display rate

Slow: 2 seconds per second; Medium: 5 times per second; Fast: 7 times per second

Function

No.

Uncertainty, ±(% of reading + least significant digit )

DCV

Measuring range

10μV~1000V

1μV~1000V

Maximum resolution

10μV

1μV

Uncertainty

±(0.03+ 3)

±(0.01%+3)

DCI

Measuring range

10nA~10A

1nA~10A

Maximum resolution

10nA

1nA

Uncertainty

±(0.08%+10)

±(0.05%+10)

ACV

Measuring range

10μV~750V

1μV~750V

Frequency range

20Hz~100kHz

20Hz~100kHz

Maximum resolution

10μV

1μV

Uncertainty

±(0.3%+20)

±(0.2%+100)

ACI

Measuring range

10nA~10A

1nA~10A

Frequency range

20Hz~10kHz

20Hz~10kHz

Maximum resolution

10nA

1nA

Uncertainty

±(0.3%+20)

±(0.2%+100)

Resistance

Measuring range

10mΩ~200MΩ

1mΩ~200MΩ

Maximum resolution

10mΩ

1mΩ

Uncertainty

±(0.05%+5)

±(0.015%+3)

Capacitance

Measuring range

1pF~10mF

1pF~10mF

Maximum resolution

1pF

1pF

Uncertainty

±(1%+5)

±(1%+5)

Frequency

Measuring range

1Hz~20MHz

1Hz~20MHz

Maximum resolution

0.001Hz

0.0001Hz

Uncertainty

±(0.01%+10)

±(0.005%+3)

Other functions

Mathematical functions:

MX+B / MAX / MIN / Average / dB / dBm / Rel / Limits Compare/ Hold / Statistics / % / 1/X

Resistance measurement

Supporting 2-line and 4-line

Communication interface

ET1240: Standard: USB Device; Matching: RS232, USB Host, GPIB, LAN, WIFI, Bluetooth

ET1255: Standard: USB Device、RS232;Matching: USB Host、GPIB、LAN、WIFI、Bluetooth

On-off measurement

The buzzer sounds when the measured value is below the threshold. Threshold resistance can be set in the range of 0~2kΩ, default is 30Ω

Diode measurement

Measurement range: 0-2V

AC+DC measurement

Support

Trigger mode

Automatic Trigger, Single Trigger, External Trigger (ET1240 is optional)

Duty cycle measurement

5.0%-95.0%(error within 10 words)

Square wave output

Frequency: 1Hz-100kHz, Amplitude: 3V

Limit test

Support

Calibration function

Support

Temperature measurement

Thermocouple: K / N / R / S / T / B / E / J / WRe325 / WRe526; Thermal resistance: PT100 / PT50 / Cu100 / Cu50

Cold end compensation

Built-in temperature sensor to support automatic and manual temperature compensation

Additional functions

Data retention, data storage, data readback

Technical indicators Table 2(ET3241、ET3241B、ET3242、ET3243)

Model

ET3241

ET3241B

ET3242

ET3243

Reading display

24000(4 1/2)

44000(4 3/4)

55000(4 4/5)

66000(4 5/6)

Display rate

Slow: 2 seconds per second; Medium: 5 times per second; Fast: 7 times per second

DCV

Measuring range

10μV~1100V

Maximum resolution

10μV

Uncertainty

±(0.02%+3)

±(0.02%+3)

±(0.02%+3)

±(0.02%+3)

DCI

Measuring range

10nA~12A

Maximum resolution

10nA

Uncertainty

±(0.08%+3)

±(0.05%+3)

±(0.05%+3)

±(0.05%+3)

ACV

Measuring range

10μV~800V

Maximum resolution

20Hz~100kHz

Uncertainty

±(0.2%+20)

±(0.2%+20)

±(0.2%+20)

±(0.2%+20)

ACI

Measuring range

10nA~12A

Frequency range

20Hz~10kHz

Maximum resolution

10nA

Uncertainty

±(0.2%+10)

±(0.2%+10)

±(0.2%+10)

±(0.2%+10)

Resistance

Measuring range

10mΩ~1GΩ

Maximum resolution

10mΩ

Uncertainty

±(0.05%+5)

±(0.04%+5)

±(0.03%+5)

±(0.03%+5)

Capacitance

Measuring range

1pF~10mF

Maximum resolution

1pF

Uncertainty

±(1%+5)

±(1%+5)

±(1%+5)

±(1%+5)

Frequency

Measuring range

1Hz~20MHz

Maximum resolution

0.001Hz

Uncertainty

±(0.01%+3)

±(0.01%+3)

±(0.01%+3)

±(0.01%+3)

Other functions

Mathematical function

MX+B / MAX / MIN / Average / dB / dBm / Rel / Limits Compare/ Hold / Statistics / % / 1/X

Resistance measurement

Supporting 2-line and 4-line

On-off measurement

The buzzer sounds when the measured value is below the threshold. Threshold resistance can be set in the range of 0~2kΩ, default is 30Ω

Diode measurement

Measurement range: 0-2V

AC+DC measurement

Support

Trigger mode

Automatic Trigger, Single Trigger, External Trigger ( optional)

Duty cycle measurement

5.0%-95.0%(error within 10 words)

Square wave output

Frequency: 1Hz-100kHz, Amplitude: 3V

Limit test

Support

Calibration function

Support

Graphic display

Bar/Trend/Histogram

Temperature measurement

Thermocouple:K / N / R / S / T / B / E / J / WRe325 / WRe526;Thermal resistance:PT100 / PT50 / Cu100 / Cu50

Custom sensor

Users can set the corresponding curve by themselves and download it through U disk or USB communication port, which can support up to 20 kinds.

Cold end compensation

Built-in temperature sensor to support automatic and manual temperature compensation

Communication interface

Standard:USB Device;Matching:RS232、USB Host、GPIB、LAN、WIFI、Bluetooth

Additional functions

Data retention, data storage, data readback

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