1、 Core selling points and applicable scenarios of the product

1. Application materials

Plastic, rubber, ceramics, epoxy resinPCBSubstrate, silicon wafer, thin film, graphene, nanocomposites, etc.

2. Application Industry

Cables, transformers, motorsPCBSemiconductor packaging, new energy battery separators, anti-static flooring, aerospace composite materials, third-party quality inspection/Research laboratory.

3. meet the standard

GB/T 1410(Equivalent)IEC 60093）TheASTM D257TheGB/T 1692TheGB 31838Wait.

4. Technical Highlights

Range width:10^-4～10¹⁹Ω, current10^-16～10^-2 A

Multiple voltage levels:10 VThe25 VThe50 VThe100 VThe250 VThe500 VThe1000 VProgram controlled switching

Three electrode system (high voltage)/measurement/Protection)+Shielding box, anti electromagnetic interference

Misoperation alarm, filtering, discharge protection, built-in lithium battery, supporting field operations without power supply

connectable PCSoftware that automatically generates reports and prints original records

2、 Unpacking and installation 10 footwork

1. Environment Preparation

temperature 23±2 ℃, humidity50±5 %RH, hourly fluctuation ΔT＜1 ℃、ΔRH＜3 %Lay anti-static mats on the ground and keep away from large motors and frequency converters.

2. Open box inspection

Host, shielding box, three electrode assembly, power cord, high voltage line (red), micro current line (black)/Blue), grounding wire, calibration resistor, softwareUPlate and certificate of conformity.

3. grounding

use ≥4 mmConnect the "⏚" terminal on the back panel of the host to the laboratory grounding post with a yellow green line, and the grounding resistance should be less than4 Oh.

4. Connect the shielding box

high-voltage line → High voltage electrode (red)

Micro electric streamline → Measuring electrode (black)

shielded wire → Protective electrode (blue)

Be sure to keep the three electrodes coaxial and the gap uniform.

5. power supply

AC 220 V/50 HzStable voltage power supply; If there is a built-in lithium battery, fully charge it first4 h.

6. Power on preheating

Place the range knob first 10^4Ω, voltage10 VSwitch on the gear and turn on the power again; preheat10–30 minStabilize the electrostatic meter amplifier.

7. zero adjustment

“Rx”Open circuit status → Press“ZERO”→ Display0000After each voltage change, it needs to be reset to zero.

8. Electrode pressure calibration

Use a force gauge to apply vertical pressure to the pressure head, so that the electrode contacts the sample at a certain pressure 10–15 kPa（≈1 kgf/ cm²）。

9. Calibration verification

Use standard equipment 10^6、10^9、10^12Measure the Ω standard resistance once each, with an error of ≤±2 %Only then can it be accepted.

10. software installation

Randomly select UDisk insertionPC→ Install drivers andLabControlSoftware → Set Serial Port/Bluetooth → real-time drawing and exporting capabilityEXCELThePDF.

3、 Standard usage process

1. sample preparation

Size:≥100 mm×100 mm, thickness0.1–10 mmThe film is vacuum adsorbed without wrinkles.

Cleaning: Unidirectional wiping with isopropanol or anhydrous ethanol → Dry dust-free paper30 min.

Tempering: in 23±1 ℃、50±5 %RHLower adjustment ≥24 h.

2. pretend

Open the shielding box → Cover the "unprotected electrode" in the center of the sample → Place the high-voltage electrode and protective ring in sequence → Lock with light pressure.

3. Parameter Settings

Material CategoryRecommended voltage:

film/paper100 V，PCBsubstrate250 V, Ceramic/rubber500 VMica, mica/polyimide1000 V.

Charging time 60 sReading time30 sShift delay2 s.

4. Test sequence

Surface resistivity first Rs, rear volume resistivityRv(Avoid surface charge interference).

5. Range operation

10⁴→10⁵→... gradually increase the gear and stop at each gear1–2 sStop when a significant number appears and do not dial higher.

6. reading

The screen lock value at the moment of electrification completion is RAutomatic calculation of instruments

ρv = Rv×A / t(Oh andcm）

ρs = Rs×P / g(Ω/□）

A-Effective area,t-thicknessP-Circumference of the ring,g-Ring gap.

7. discharge

The high voltage indicator light is off → Press“DISCHARGE”→ Waiting60 sOpen the box and take samples (to prevent electric shock).

8. reset

Range Return 10^4Ω, voltage return10 VShut down.

4、 Key precautions

1. safety

It is strictly prohibited to touch the high-voltage terminal when turning on the machine; Must wear 5 kVInsulated gloves.

High capacitance samples must be discharged forcibly after testing.

2. Prevent damage

Prohibit“Rx”Short circuit; Prohibit range not returning10^4Change the sample.

Prohibit live switchingThe surface/The "volume" gear needs to be turned off before switching.

3. environment

Humidity>70 %RHIt is strictly prohibited to measure10^12High resistance above Ω; Nitrogen box or dehumidifier can be used.

Test independent grounding, keep away from windows and air conditioning vents to avoid airflow disturbance.

4. maintenance

Used every week 2000 Grinding paste lightly polished electrode, roughnessRa≤0.2 µm.

Used quarterly 10^9、10^12Ω standard resistance retest, drift ＞±3 %Need to return to the factory.

fiveRandom delivery list

host 1 Platform and shielding box1 Set, three electrode system1 Set, high voltage/Micro electric streamline lines1 Root and power cord1 Root and grounding wire2 mStandard resistance3 OnlyLabControlsoftwareUPlate, Chinese/English manuals for each1 Calibration Certificate of the Institute of Metrology1 Aluminum alloy pull rod box1 One.