










Fully Automatic Resistivity Tester - Touch Screen
GEST-121B
Multifunctional Resistivity Tester
Complies with Standards:
GB/T 1410-2006 "Test Methods for Volume Resistivity and Surface Resistivity of Solid Electrical Insulating Materials"
ASTM D257-99 "Standard Test Methods for DC Resistance or Conductance of Insulating Materials"
GB/T 10581-2006 "Test Methods for Resistance and Resistivity of Insulating Materials at Elevated Temperatures"
GB/T 1692-2008 "Vulcanized Rubber - Determination of Insulation Resistivity"
GB/T 2439-2001 "Rubber, Vulcanized or Thermoplastic - Determination of Conductivity and Dissipative Resistivity"
GB/T 12703.4-2010 "Textiles - Evaluation of Electrostatic Properties - Part 4: Resistivity"
GB/T 10064-2006 "Test Methods for Measuring Insulation Resistance of Solid Insulating Materials"
GB 1672-1988 Determination of Volume Resistivity of Liquid Plasticizers
I. Overview
This resistance meter utilizes advanced measurement and control technology, upgraded on the basis of the GEST121 instrument. It can test insulation resistance, volume resistance, and surface resistance, and can automatically calculate resistivity. At the same time, it can print test data.
This instrument features high accuracy, rapid display, good stability, and convenient reading. It is suitable for measuring the volume and surface resistance of various insulating materials in the form of rubber, plastic, film, powder, liquid, solid, and paste. In addition to measuring resistance, this instrument can also directly measure weak currents.
Main Advantages:
1. Password Protection: Login to the test page requires a password to ensure operation only by qualified technical personnel.
2. Measurement Modes: Manual measurement & Automatic measurement
3. Sampling Time: In automatic measurement mode, the sampling time can be freely set.
4. Calibration Mode: Has automatic calibration function, capable of auto-calibrating voltage and current.
5. Display Data: Real-time display of test voltage, current, resistance value, and resistivity value.
6. Data Printing: Can print test data.
7. Software Communication: Can be equipped with host computer software for measurement via the host computer, and can save and export test data.
8. Operation Interface: 7-inch touch screen
III. Technical Specifications
1. Resistance measurement range: 0.01×10⁴Ω ~1×10¹⁸Ω.
2. Current measurement range: 2×10⁻⁴A~1×10⁻¹⁶A
3. Display method: 7-inch touch screen
4. Built-in test voltage: 10V, 50V, 100V, 250V, 500V, 1000V
5. Basic accuracy: 1% (*Note)
6. Operating environment: Temperature: 0℃~40℃, relative humidity <80%
7. Internal test voltage: 10V/50V/100V/250V/500V/1000V, arbitrary switching
8. Power supply: AC 220V, 50HZ, power consumption about 5W
9. Instrument dimensions: 285mm × 245mm × 120mm
10. Weight: about 2.5KG
Typical Applications
1. Measure insulation resistance, volume resistance, and surface resistance (resistivity) of insulating materials.
2. Measure resistance and resistivity of antistatic materials.
3. Measure system resistance of raised floors used in computer rooms.
4. Measure resistance of antistatic shoes and conductive shoes.
5. Dark current measurement of photodiodes.
6. Physics, optics, and materials research.
Standard Configuration:
1. Test instrument: 1 unit
2. Power cord: 1 piece
3. Measuring cables: 3 pieces (shielded cable, test lead, ground wire)
4. Instruction manual: 1 copy
