Description
The TES-3910 Trms Clamp Meter is a versatile, high-precision tool designed for professional electricians, HVAC technicians, and industrial maintenance personnel. It offers True RMS readings for AC and DC currents up to 1000A, ensuring accurate measurements even in circuits with distorted waveforms. Its Lo-Z voltage mode effectively removes ghost voltages, allowing safe and reliable testing.
This meter is capable of measuring capacitance up to 1000µF, inrush current, and variable-frequency drive (VFD) voltage and frequency, making it ideal for complex electrical systems. Additionally, it can verify 3-phase motor wiring using its phase sequence detection. The TES-3910 also provides diode and resistance testing, along with a data hold and peak hold mode for convenient on-site readings.
Its ergonomic design supports a maximum conductor diameter of 33 mm, and it comes with a full set of accessories, including test leads, a carrying case, and batteries. With data memory and read functions, the TES-3910 allows technicians to log measurements for later analysis, enhancing productivity and safety in the field.
Specifications
GENERAL SPECIFICATION:
| Parameter |
Specification |
| Safety Category |
CAT III 1000 V
CAT IV 600 V |
| Maximum Conductor / Wire Diameter |
33 mm |
| Dimensions (L × W × T) |
236 × 80 × 39 mm |
| Weight |
332 g (including battery) |
| Included Accessories |
• Instruction Manual × 1
• Battery × 1
• Carrying case × 1
• Test leads × 1 pair |
ELECTRICAL SPECIFICATIONS (23℃±5℃)
AC Current (40Hz to 400Hz) : VFD Trms
| Range |
Resolution |
Accuracy |
Sensitivity |
Overload Protection |
| 99.99A |
10mA |
±2%±20dgts (50, 60Hz) ±4%±20dgts (40~400Hz) |
>0.25A |
1000A AC |
| 999.9A |
100mA |
>2.5A |
DC Current :
| Range |
Resolution |
Accuracy |
Sensitivity |
Overload Protection |
| 99.99A |
10mA |
±2% ±20dgts |
>0.25A |
1000A |
| 999.9A |
100mA |
>2.5A |
ACA Inrush Current : VFD Trms
| Range |
Resolution |
Sensitivity |
Measurement Time |
Overload Protection |
| 99.99A |
0.01A |
>5A |
100mS |
1000AAC |
DCμA : (Burden Voltage : 3.6mV/µA)
| Range |
Resolution |
Accuracy |
Sensitivity |
Overload Protection |
| 99.99μA |
10nA |
±1% ±20dgts |
>0.30µA |
1000V |
| 999.9μA |
100nA |
>3.0µA |
ACmA : VFD Trms (Burden Voltage : 3.6mV/µA)
| Range |
Resolution |
Accuracy |
Sensitivity |
Overload Protection |
| 99.99mA |
10nA |
±1%±10dgts (50, 60Hz) ±2%±10dgts (40~400Hz) |
>0.30µA |
1000V |
| 999.9mA |
100nA |
>3.0µA |
AC Voltage (40Hz to 400Hz) : VFD Trms
| Range |
Resolution |
Accuracy |
Sensitivity |
Overload Protection |
| 999.9mV |
0.1mV |
±1%±10dgts (50, 60Hz) ±2%±10dgts (40~400Hz) 40 ~ 300Hz on mV range |
>2mV |
1000V (LoZ: 600V 1 minute) |
| 9.999V |
1mV |
>20mV |
| 99.99V |
10mV |
>200mV |
| 999.9V |
100mV |
>2V |
DC Voltage
| Range |
Resolution |
Accuracy |
Sensitivity |
Overload Protection |
| 999.9mV |
0.1mV |
±1% ±10dgts |
>2mV |
1000V (LoZ: 600V 1 minute) |
| 9.999V |
1mV |
>20mV |
| 99.99V |
10mV |
>200mV |
| 999.9V |
100mV |
>2V |
Resistance (Continuity<40Ω on the range) :
| Range |
Resolution |
Accuracy |
Overload Protection |
| 999.9Ω |
100mΩ |
±1% ±10dgts |
1000V |
| 9.999KΩ |
1Ω |
| 99.99KΩ |
10Ω |
| 999.9KΩ |
100Ω |
3Φ Phase sequence indication :
| Range |
Frequency Response |
Overload Protection |
| 80V to 480V |
50Hz / 60Hz |
1000V |
Diode (Continuity<40mV) :
| Range |
Resolution |
Accuracy |
Overload Protection |
| 3.000V |
1mV |
±1% ±10dgt |
1000V |
Frequency :
| Range |
Resolution |
Accuracy |
Sensitivity |
| 40Hz/1KHz |
0.1Hz |
±0.5%rdg ±2dgts |
V > 5% range μA, A > 30% |
Capacitance:
| Range |
Resolution |
Accuracy |
Overload Protection |
| 1.000μF |
1nF |
±1.5%±5dgts |
1000V |
| 10.00μF |
10nF |
| 100.0μF |
100nF |
| 1000μF |
1μF |
