ET124X/ET125X Series Digital Benchtop Multimeter
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Conventional model |
ET124X Series Enhanced Model |
ET125X Series Enhanced Model |
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Model |
ET1240 |
ET1255 |
ET1241A |
ET1241B |
ET1241C |
ET1241D |
ET1256A |
ET1256B |
ET1256C |
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Reading display |
4 ½ |
5 ½ |
4 ½ |
4 ¾ |
4 4/5 |
4 5/6 |
5 ½ |
5 4/5 |
5 5/6 |
¤ 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.
¤ 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
¤ Three core power cord*1(30A51)
¤ Three core pen*1(32A52)
¤ Backup power fuse*2(32A52)
¤ GPIB cable
¤ Cabinet installation kit
¤ Rs232 serial port line
¤ USB data line
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Model |
ET1240 |
ET1255 |
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Display screen |
3.5” TFT LCD (resolution of 320*480) |
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Number of display digits |
24000(4 1/2) |
240000(5 1/2) |
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Display rate |
Slow: 2 seconds per second; Medium: 5 times per second; Fast: 7 times per second |
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Function |
No. |
Uncertainty, ±(% of reading + least significant digit ) |
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DCV |
Measuring range |
10μV~1000V |
1μV~1000V |
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Maximum resolution |
10μV |
1μV |
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Uncertainty |
±(0.03+ 3) |
±(0.01%+3) |
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DCI |
Measuring range |
10nA~10A |
1nA~10A |
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Maximum resolution |
10nA |
1nA |
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Uncertainty |
±(0.08%+10) |
±(0.05%+10) |
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ACV |
Measuring range |
10μV~750V |
1μV~750V |
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| Frequency range |
20Hz~100kHz |
20Hz~100kHz |
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Maximum resolution |
10μV |
1μV |
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Uncertainty |
±(0.3%+20) |
±(0.2%+100) |
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ACI |
Measuring range |
10nA~10A |
1nA~10A |
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Frequency range |
20Hz~10kHz |
20Hz~10kHz |
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Maximum resolution |
10nA |
1nA |
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Uncertainty |
±(0.3%+20) |
±(0.2%+100) |
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Resistance |
Measuring range |
10mΩ~200MΩ |
1mΩ~200MΩ |
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Maximum resolution |
10mΩ |
1mΩ |
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Uncertainty |
±(0.05%+5) |
±(0.015%+3) |
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Capacitance |
Measuring range |
1pF~10mF |
1pF~10mF |
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Maximum resolution |
1pF |
1pF |
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Uncertainty |
±(1%+5) |
±(1%+5) |
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Frequency |
Measuring range |
1Hz~20MHz |
1Hz~20MHz |
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Maximum resolution |
0.001Hz |
0.0001Hz |
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Uncertainty |
±(0.01%+10) |
±(0.005%+3) |
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Other functions |
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Mathematical functions: |
MX+B / MAX / MIN / Average / dB / dBm / Rel / Limits Compare/ Hold / Statistics / % / 1/X |
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Resistance measurement |
Supporting 2-line and 4-line |
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Communication interface |
ET1240: Standard: USB Device; Matching: RS232, USB Host, GPIB, LAN, WIFI, Bluetooth |
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ET1255: Standard: USB Device、RS232；Matching: USB Host、GPIB、LAN、WIFI、Bluetooth |
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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 |
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Diode measurement |
Measurement range: 0-2V |
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AC+DC measurement |
Support |
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Trigger mode |
Automatic Trigger, Single Trigger, External Trigger (ET1240 is optional) |
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Duty cycle measurement |
5.0%-95.0%(error within 10 words) |
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Square wave output |
Frequency: 1Hz-100kHz, Amplitude: 3V |
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Limit test |
Support |
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Calibration function |
Support |
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Temperature measurement |
Thermocouple: K / N / R / S / T / B / E / J / WRe325 / WRe526; Thermal resistance: PT100 / PT50 / Cu100 / Cu50 |
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Cold end compensation |
Built-in temperature sensor to support automatic and manual temperature compensation |
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Additional functions |
Data retention, data storage, data readback |
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Model |
ET1241A |
ET1241B |
ET1241C |
ET1241D |
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Reading display |
24000(4 1/2) |
44000(4 3/4) |
55000(4 4/5) |
66000(4 5/6) |
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Display rate |
Slow: 2 seconds per second; Medium: 5 times per second; Fast: 7 times per second |
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DCV |
Measuring range |
10μV~1100V |
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Maximum resolution |
10μV |
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Uncertainty |
±(0.02%+3) |
±(0.02%+3) |
±(0.02%+3) |
±(0.02%+3) |
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DCI |
Measuring range |
10nA~12A |
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Maximum resolution |
10nA |
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Uncertainty |
±(0.08%+3) |
±(0.05%+3) |
±(0.05%+3) |
±(0.05%+3) |
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ACV |
Measuring range |
10μV~800V |
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Maximum resolution |
20Hz~100kHz |
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Uncertainty |
±(0.2%+20) |
±(0.2%+20) |
±(0.2%+20) |
±(0.2%+20) |
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ACI |
Measuring range |
10nA~12A |
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Frequency range |
20Hz~10kHz |
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Maximum resolution |
10nA |
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Uncertainty |
±(0.2%+10) |
±(0.2%+10) |
±(0.2%+10) |
±(0.2%+10) |
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Resistance |
Measuring range |
10mΩ~1GΩ |
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Maximum resolution |
10mΩ |
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Uncertainty |
±(0.05%+5) |
±(0.04%+5) |
±(0.03%+5) |
±(0.03%+5) |
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Capacitance |
Measuring range |
1pF~10mF |
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Maximum resolution |
1pF |
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Uncertainty |
±(1%+5) |
±(1%+5) |
±(1%+5) |
±(1%+5) |
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Frequency |
Measuring range |
1Hz~20MHz |
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Maximum resolution |
0.001Hz |
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Uncertainty |
±(0.01%+3) |
±(0.01%+3) |
±(0.01%+3) |
±(0.01%+3) |
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Other functions |
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Mathematical function |
MX+B / MAX / MIN / Average / dB / dBm / Rel / Limits Compare/ Hold / Statistics / % / 1/X |
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Resistance measurement |
Supporting 2-line and 4-line |
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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 |
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Diode measurement |
Measurement range: 0-2V |
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AC+DC measurement |
Support |
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Trigger mode |
Automatic Trigger, Single Trigger, External Trigger ( optional) |
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Duty cycle measurement |
5.0%-95.0%(error within 10 words) |
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Square wave output |
Frequency: 1Hz-100kHz, Amplitude: 3V |
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Limit test |
Support |
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Calibration function |
Support |
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Graphic display |
Bar/Trend/Histogram |
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Temperature measurement |
Thermocouple：K / N / R / S / T / B / E / J / WRe325 / WRe526；Thermal resistance：PT100 / PT50 / Cu100 / Cu50 |
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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. |
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Cold end compensation |
Built-in temperature sensor to support automatic and manual temperature compensation |
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Communication interface |
Standard：USB Device；Matching：RS232、USB Host、GPIB、LAN、WIFI、Bluetooth |
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Additional functions |
Data retention, data storage, data readback |
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