GD3128 Series Insulation Resistance Tester
GD3128 series Insulation Resistance Tester has perfect testing function of various insulation resistance parameters and excellent anti-interference ability, which can be used to test the insulation resistance of large capacity high voltage electrical equipment and transmission lines in strong inductive environment such as substation. The instrument adopts true color touch screen, all test data and battery power are displayed on the same screen at a glance, and the combination of knob switch and key makes the operation very simple. The user does not need to memorize the operation method. Click "HELP" on the screen to pop up the operation method, which can effectively guide the user to operate the instrument. The instrument has the function of fast discharge, which can discharge the voltage of the tested object instantaneously without additional discharge circuit. The voltage monitor of the instrument can automatically monitor the live voltage of the tested object. If the voltage exceeds 36V, the test will be automatically prohibited, which can effectively protect the instrument and operators.
The instrument adopts large capacity rechargeable lithium battery pack. The test timer of the instrument automatically records the test time and stores the test results with date and time. The touch screen can easily access the recorded historical data. The completely isolated USB interface can safely upload the test data to the PC. The instrument is equipped with test line with double insulation and shielding layer, and the high voltage bar is equipped with replaceable alligator clip and hook, which can adapt to various test places. The instrument adopts a solid double-layer shell structure, and the protection grade of the outer box is IP65, which can prevent the invasion of moisture and dust during transportation and storage, and effectively protect the instrument from collision.
GD3128 series has a wide range, high resolution, convenient operation, sturdiness and durability, accuracy and reliability, stable performance, and strong anti-interference ability. The instrument has insulation resistance test (IR); polarization index test (PI); absorption ratio test (DAR); ramp test (RAMP); filter test (FR, 10S, 20S, 30S, 40S four options); voltage test ( V); capacitance test (uF); current test (nA) and other functions. The instrument is suitable for the insulation resistance test of electrical equipment, transmission lines and other large equipment under the environment of large capacity, high voltage and strong induction. It is a commonly used and indispensable instrument for electric power, telecommunications, meteorology, computer room, oil field, electromechanical installation and maintenance, and power supply departments of industrial and mining enterprises.
● The maximum short-circuit current is 7mA.
● Insulation resistance test (IR), polarization index test (PI), absorption ratio test (DAR).
● Ramp test mode (RAMP), filter test mode (FR), capacitance test (uF)
● Voltage monitor function, automatically monitor the charged voltage of the tested object.
● Test timer function, automatically record test time.
● Automatic discharge function, automatically and quickly release the charge of the test object after the test, without an external discharge circuit.
● Automatic shutdown function.
● Large touch color screen.
● Double-layer shell structure, sturdy and durable, protection grade IP65.
● High-capacity rechargeable lithium battery pack.
● Storage function, can automatically store 1000 groups of real-time test data with test date and time and test timing.
● Upload function, equipped with USB interface, record data can be uploaded to computer for statistical analysis of data.
|
Product Model |
Rated Voltage |
Insulation Resistance Range |
Short Circuit Current |
|
GD3128A |
250V,500V,1kV,2.5kV,5kV |
0.50MΩ~10.0TΩ |
≥7mA |
|
GD3128B |
250V,500V,1kV,2.5kV,5kV,10kV |
0.50MΩ~20.0TΩ |
≥7mA |
|
GD3128C |
250V,500V,1kV,2.5kV,5kV,10kV,15kV |
0.50MΩ~30.0TΩ |
≥7mA |
Insulation Resistance Range and Accuracy
|
Rated Voltage |
Insulation Resistance Rage |
Accuracy |
Remark |
|
250V |
0.50MΩ～50.0GΩ |
±5%rdg±3dgt |
|
|
50.0GΩ～500GΩ |
±20%rdg±3dgt |
|
|
|
500V |
1.00MΩ～100GΩ |
±5%rdg±3dgt |
|
|
100GΩ～1.00TΩ |
±20%rdg±3dgt |
|
|
|
1000V |
1.00MΩ～200GΩ |
±5%rdg±3dgt |
|
|
200GΩ～2.00TΩ |
±20%rdg±3dgt |
|
|
|
2500V |
1.00MΩ～500GΩ |
±5%rdg±3dgt |
|
|
500GΩ～3.00TΩ |
±20%rdg±3dgt |
|
|
|
5000V |
1.00MΩ～1.00TΩ |
±5%rdg±3dgt |
|
|
1.00TΩ～10.0TΩ |
±20%rdg±3dgt |
|
|
|
10KV |
1.00MΩ～2.00TΩ |
±5%rdg±3dgt |
|
|
2.00TΩ～20.0TΩ |
±20%rdg±3dgt |
|
|
|
15KV |
1.00MΩ～3.00TΩ |
±5%rdg±3dgt |
|
|
3.00TΩ～30.0TΩ |
±20%rdg±3dgt |
1 TΩ (Tera ohm)=1000GΩ=1012Ω
1 GΩ (Giga ohm)=1000MΩ=109Ω
1 MΩ (Mega ohm)=1000KΩ=106Ω
| Function | Insulation resistance measurement (IR); polarization index measurement (PI); absorption ratio (DAR); ramp test mode (RAMP); filter function (10S, 20S, 30S, 40S); voltage measurement(V); capacitance measurement(uF); current measurement(nA) |
| Power Supply | Rechargeable lithium battery 6.2Ah |
| Rated Voltage | GD3128A: 250V, 500V, 1kV, 2.5kV, 5kV GD3128B: 250V, 500V, 1kV, 2.5kV, 5kV, 10kV GD3128C: 250V, 500V, 1kV, 2.5kV, 5kV, 10kV, 15kV |
| Output Voltage Accuracy | (5%～10%) ±10V |
| Insulation Resistance Test Range | GD3128: 0.50MΩ～10.0TΩ GD3128B: 0.50MΩ～20.0TΩ GD3128C: 0.50MΩ～30.0TΩ |
| Output Short Circuit Current | ≥7mA |
| Polarization Index Test | Yes |
| Absorption Ratio Test | Yes |
| Ramp Test Mode | Test in steps of 10% of the preset voltage until the preset voltage. |
| Filter Test Mode | 10S, 20S, 30S, 40S four selections. |
| Voltage Test | Range: AC/DC: 0V～1000V; Accuracy: ±5%rdg±3V |
| Capacitance Test | Range: 10nF～25uF; Accuracy: ±10%rdg±10nF |
| Current Test | Range: 0.01nA～7mA; Accuracy: ±5%rdg±0.5nA |
| Voltage Monitor | Monitor the voltage of the tested object, and monitor discharge status after test, forbidden to test when voltage exceed 36V, protect instrument and operator. |
| Test Timer | Automatic record test time, timing range: 0s~9999s |
| Storage Function | Automatically store the test data with test date and time, total of 1000 groups |
| Upload Function | Upload the stored data to computer via USB communication cable. |
| Battery Power Display | With battery power display, when battery voltage low will remind to charge the battery. |
| Automatic Shutdown | After 15 minutes start up will shut down automatically without any operation. |
| Dimension | 280mm×260mm×160mm |
| Weight | 4900g (include the battery) |
| Test Wires | Red color high voltage test wire 1pc (with a alligator clip and hook), green color test wire 1pc, black color test wire 1pc |
| Protection Level | Close the case IP65, open the case IP40 |
| Working Environment | -20℃～50℃; 80%rh |
| Store Environment | -25℃～65℃; 80%rh |
| Insulation Resistance | 50MΩ (1000V) (between the test circuit and shell) |
| Withstand Voltage | AC 3kV 50Hz 1min (between the test circuit and shell) |
| Safety | IEC61010-1, IEC61326-1 |
