Wuhan GDZX Power Equipment Co., Ltd
LONG-TERM PROJECT, QUALITY FIRST.
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Product introduction
0.05 class 1111.1ΩDC Digital Kelvin Bridge
1 1 Uses: Model QJ57E is a portable accuracy DC double bridge with Kelvin network ( hereinafter referred to as "Bridge"). The instrument is provided with seven measuring ranges from 0 ~ 1.1111k Ω and the minimum resolution is 0.01 u Ω . It is suitable for accuracy measurement of low-value resistance or DC resistance in the conductivity of metal conductor, DC current divider, the contact resistance of switch, wire and cable, motors and transformers, etc.
Features
The main resistance element of the bridge is made by high-grade alloy material, and subjected to long-term high and low temperature aging test, as well as rigid technological treatment and adjustment so as to lower the temperature coefficient, increase the accuracy and improve the annual stability. By adopting the specific switch in Fang Ke accuracy instrument, the contact resistance of the bridge is small and so does its variation; by using model JZ2B zero indicator, the bridge features high sensitivity, low noise and less power dissipation. Therefore, the portable bridge is characterized by wide measurement range, high accuracy, well stability and reliability, compact and lightweight
Technical Indicators
Specifications:
All technical indicators of Model QJ57E conform to the standard IEC564 - 77" DC Bridge for Measuring Resistance".
1. Accuracy level: 0.05;
2. Environment condition: Temperature reference value: 20±1.5 C, Nominal temperature usage range: 5 °C-35 °C . Relative humidity: 25% ~ 75%.
3. Total effective range: 0.0001Ω~1111.1Ω 4.Maximum resolution: 0.01μΩ Main parameters are shown in Table 1.
Table 1
| Multipe | Effective range | Resolution | Class index | Rn | Iman |
| x 10-3 | 0 -1.11110mΩ | 10n Ω | 2 | 1mΩ | 3A |
| x 10-2 | 0 -11.1110mΩ | 100n Ω | 0.2 | 10mΩ | 1A |
| x 10-1 | 0 -111.110mΩ | 1 µΩ | 0.05 | 100mΩ | 500 mA |
| x1 | 0 -1.1111Ω | 10 µΩ | 0.05 | 1 Ω | 100mA |
| x 10 | 0 -11,1110mΩ | 100 µΩ | 0.05 | 10 Ω | 15mA |
| x 102 | 0 -111.110mΩ | 1mΩ | 0.05 | 100 Ω | 1.5mA |
| x 103 | 0 -1.11110 kΩ | 10m Ω | 0.05 | 1kΩ | 200 µ A |
Product pictures
PACKING AND SHIPPING
(1)We will ship products within 7-15 working days after the receipt of confirmation of your payment.
(2)All products will be well packed by robust carton or wooden box so as to ensure goods can arrive safely.
(3)Multiple shipping methods including express, sea freight, railway and so on for your choice, competitive shipping method will be advised to you.
(4)If you go with your own forwarder, we will provide all necessary documents for customs clearance.
(5)After shipping, we will remain attentive till goods well received.
If you need detailed specification, please feel free to contact us.
Company introduction
Wuhan GDZX Power Equipment Co.,Ltd.is a manufacturer of power test equipment, integrating design, production and sales, providing complete solutions for high-voltage testing and electrical testing services for various power users.The main products include:AC series resonance test device, high voltage test equipment, transformer test equipment, secondary protection / switch test equipment, cable fault tester, arrester test equipment, power metering equipment, standard source series and so on. There are many kinds of products and complete models.
Service and Warranty
Service
* Provide professional consulting service; dedicated salesman and professional technical engineer to answer customer questions.
* Ensure customer get the detailed information about the product in hand.
* Reasonable price, we trust our customers should get the worth what they paid. Quotation stamped and confirmed by Manager.
* Welcome customers visit.
* The contract and the technical agreement to sign by both parties.
* Being trustworthy, follow the requirements and ensure successful implementation of signed contracts and technical agreements.
* Focus on communication, actively communicate with users, take notes of user’s questions and schedule, provide the necessary technical support.
* Move quick and efficient, professional on delivery, installation, debugging, training and others.
Warranty
* We maintains 100% customer satisfaction, please give us feedback if you fell anything wrong with the product, we will make it right for you.
* Our products are guaranteed with one year warranty and life-long tech support.
* Provide solutions within 24 hours when there is problems feedback from customer.