GDZX Electric Factory Price QJ57 Double Arm Kelvin DC Bridge For
Low Resistance Measuring
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.
