TX-300B intelligent metal conductor resistivity measuring instrument are patented products of our company. They are the only portable and fully automatic instruments in the world, for measuring resistivity and conductivity of wire and bar materials. The design of the high-tech products adopts current-voltage four-terminal measuring method, advanced electronic techniques, singlechip technique and automatic detection technology. Their performances completely accord with the technical requirements of GB/T3048.2 and GB/T3048.4. The products can be widely applied in the fields of metallurgy, electric power and electrical engineering, wire and cable, electrical machines and equipments, colleges and universities, research institutes, etc.
● Combining advanced electronic, singlechip and automatic measurement techniques in one instrument, with superior automatic functions and simple operation.
● All measured numerical values can be obtained by just one press on the key without any calculation. The instrument is adequate for continuous, fast and accurate measurements.
● Battery power supply has small size thus easy to carry, suitable for indoor and open-field use.
● With large screen and font. Can display measured values and auxiliary parameters at the same time, including resistivity, conductivity, resistance, temperature, measuring current and temperature compensation coefficient.
● One instrument has multiple applications, and has three measurement interfaces: interface of conductor resistivity/conductivity measurement, interface of wire/cable comprehensive parameter measurement and interface of wire/cable direct-current resistance measurement (TX-300B model).
● The functions of automatic constant current selection, automatic current reversal, automatic zero point correction and automatic temperature compensation are maintained for every measurement, to guarantee the accuracy of measured value.
● Special portable four-terminal measuring fixture is suitable for fast measurements of different materials and the wire/bar with different standards.
● The build-in data accumulator can record and save 1000 groups of measuring data and parameters. Connecting it to the host computer, the complete report can be generated.
Parameter Item | Resistivity | Conductivity | Resistance |
Measuring range | 0.01µΩ·m～2.5µΩ·m | 0.4MS/m～100MS/m 0.69%IACS～172%IACS | 0.1µΩ～150Ω |
Resolution | 10－4～10－6µΩ·m | 0.01～0.001%IACS | 0.1µΩ（I=1A） |
Precision | ±0.25% | ±0.25% | 100µΩ～150Ω：±0.15% |
Temperature measurement | －10℃～＋55℃ Precision ±0.2℃(0℃～＋40℃) | ||
Internal constant current of the instrument | 16µA level～1A level（automatic selection according to the measuring requirement） | ||
Wire/cable measuring fixture | ① Equipped with 300mm portable measuring fixture，for wire diameter：Ø0.1mm～Ø10mm ② Can select 1000mm standard measuring fixture or other non-standard fixture with different size (only for B model) ③ Equipped with a special wire for measuring coiled wire/cable (only for B model) | ||
Automatic temperature compensation | The measured value will be automatically compensated to the value at 20℃. | ||
Wire/cable measuring items | ① Resistivity ρv, conductivity σ, resistance R, resistance of unit length Rl, mass resistivity ρm of solid conductors ② Wire/cable direct-current resistance, resistance of 1000m length (only for B model) | ||
Printout data | Date, time, temperature correction coefficient α, wire specifications, and all measured values of conductor and wire/cable | ||
Normal working environment | Temperature: 0℃～＋40℃; relative humidity: 0～80% | ||
Display | Large LCD screen with backlight, can display multiple measuring parameters at the same time. | ||
Power supply | 7Ah/7.4V chargeable lithium battery; battery power supply only, average working hour over 15 hours | ||
Internal memory | Can save 1000 groups of measured data. | ||
PC communication mode | RS232 serial port | ||
Weight | Host：2.2kg Portable measuring fixture：1kg | ||
Host size | 285(W)*158(H)*120(D) | ||
Host shell | Shock-resistance engineering plastic | ||
Packaging and protection | Highly shock-resistance and portable aluminium alloy suitcase, containing the host, measuring fixture, charger, communication cable, calibration resistor, operation manual and CD, mini-printer, four-terminal resistor measuring clamp and temperature sensor. | ||
● The measurement of conductive wire and cable
● The bars, tubes, profiles of metal conductivity measurement
● The research of metal materials
● The production workshop material sorting
TECHNICAL SUPPORT 1 ：86-592-3195306 / 86-18050108768
TECHNICAL SUPPORT 2：86-592-3195308 / 86-18060926989
The primary indexes comparing of
TX-300/1000 Series’ Metal Conductor Resistivity Measuring Instrument
The instrument decides the maximum measuring diameter, measuring project, resolution, optional fixture. Nevertheless, how long the diameter of line of material be clamped and which type of material apply, is decided by the fixture.
Comparison table of instrument:
Value Project | Resistance | Resolution | Measuring project | Optional fixture |
TX-300A | 0.1µΩ ～150Ω | 0.1µΩ（I=1A） | Resistivity, conductivity, resistance, resistance per unit length ( resistance per meter), mass resistivity | TXJ-300 |
TX-300B | 0.1µΩ ～150Ω | 0.1µΩ（I=1A） | Resistivity, conductivity, resistance, resistance per unit length ( resistance per meter), mass resistivity, resistance per kilometer | TXJ-300 TXJ-150 TXJ-240 |
TX-1000A
| 0.01µΩ ～150Ω | 0.01µΩ（I=10A） | Resistivity, conductivity, resistance, resistance per unit length ( resistance per meter) | Except TXJ-300 |
TX-1000B
| 0.01µΩ ～150Ω | 0.01µΩ（I=10A） | Resistance, resistance per unit length ( resistance per meter), resistance per kilometer | Except TXJ-300 |
Comparison table of fixture:
Value Project | Length of fixture | Measuring project |
TXJ-300 | 300mm | diameter of line is 0.1mm to 10mm measurable materials are wire and bar maximum sectional area is 100mm² |
TXJ-150 | 1000mm (Clamping length can be adjusted: 300-1000mm) | diameter of line is 1mm to 14mm measurable materials are wire and bar maximum sectional area is 150mm² |
TXJ-240 | diameter of line is 1mm to 18mm measurable materials are wire, bar and strand wire maximum sectional area is 240mm² | |
TXJ-630 | diameter of line is 1mm to 28mm measurable materials are wire, bar and strand wire maximum sectional area is 630mm² | |
TXJ-1200 | diameter of line is 1mm to 39mm measurable materials are wire, bar and strand wire maximum sectional area is 1200mm² | |
TXJ-1500B | diameter of line is 1mm to 44mm measurable materials are wire, bar and strand wire maximum sectional area is 1500mm² with high precision temperature sensor | |
TXJ-1500B1 | diameter of line is 1mm to 44mm measurable materials are wire, bar and strand wire maximum sectional area is 1500mm² with several high precision temperature sensors and conductor thermal insulation system |
Brief description:
TX-300A: Equipped with default 300mm measuring fixture, measuring the material whose diameter of line is between 0.1mm to 10mm, easy to carry, suitable for indoor and open-field use.
TX-300A: Selecting 300mm measuring fixture or normal one meter measuring fixture, TX-300A compared to one more measuring project to measure resistance per kilometer
TX-1000A：Select from all the one meter measuring fixtures, the measured material’s maximum diameter is 44mm. Compared with the 300series, 1000 series’ measurement range is wider, resolution is higher, and the measurement minimum is 0.01μΩ. Extra 1000A2/B/B1 model fixtures can be selected, and it can measure 1-44mm material.
TX-1000B：Select from all the one meter measuring fixtures. Compared with the 1000A model, it has the same basic performance, removes the resistivity and conductivity from the measuring project but adds resistance per kilometer, be more suited to measure strand wire.
