Wuhan GDZX Power Equipment Co., Ltd
LONG-TERM PROJECT, QUALITY FIRST.
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Introduction
The instrument is a newly developed earth resistance tester, which abandons the traditional way of generating electricity by hand operation, advanced middle-large scale integrated circuits and applies DC/AC transformation technology to combine three-terminal measurement method and four-terminal measurement method into one model.
Features
1.High-strength aluminum alloy shell body, the circuit equips with phase locked loop and switched capacitor filter, based on which the instrument play an effective role in shielding power frequency and radio frequency interference.
2.DC/AC converter can transform DC current into AC low-frequency constant current for the measurement.
3.Auxiliary grounding resistance are allowed to change in the range of 0 ~ 2KΩ (RC), 0 ~ 40KΩ (RP), that will not affect measurement results.
4.No need manual adjustment to zero, with three and a half bits LCD display, the instrument can be used for measuring the grounding resistance, low conductor resistance, soil resistivity and AC voltage to ground.
If tested loop encounter failure, the screen displays "1" indicating overflow, which consistent with conventional measurement practices.
Parameters
| Operating Conditions | Temperature | 0℃~+45℃ |
| Relative humidity | ≤85%RH | |
| Measuring range and constant current value (virtual value) | resistance | 0~2Ω(10mA),2~20Ω(10mA),20~200Ω(1mA) |
| voltage | AC 0~20V | |
| Measurement accuracy and resolution | accuracy | 0~0.2Ω≤±3%±1d |
| 0.2Ω~200Ω≤±1.5%±1d | ||
| 1~20V≤±3%±1d | ||
| Resolution | 0.001Ω,0.01Ω,0.1Ω,0.01V | |
| Measurement errors caused by auxiliary grounding resistance and ground voltage | Auxiliary grounding resistance | RC (between C1 and C2) <1.8KΩ |
| RP (between P1 and P2) <40KΩ error ≤ ± 5% | ||
| Ground voltage (power frequency RMS) | ≤ 5V error ≤ ± 5% | |
| Power supply and power dissipation | Maximum power dissipation | ≤2W |
| DC | 6.8V-9V 7*#5 rechargeable battery | |
| AC | 220V/50Hz | |
| Main machine size and weight | 220×200×105mm3 ≤1.4kg | |
(1)We will ship products within 5-20 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.
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
* 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.
1.Q: Are you trading company or manufacturer?
A: We are manufacturer.
We have R&D department, OEM& ODM services available.
2.Q: How long is your delivery time?
A: We usually arrange shipment within 5-7 working days after checking the payment. However, for example, the delivery time of the complete set of test devices will be a little longer, which needs to be checked in real time.
3.Q: Do you provide samples? Is it free or extra?
A: Yes, we could offer the sample, but not for free; you need pay charge and the cost of freight.
4.Q: What is your term of payment?
A: Payment<=5000USD, 100% in advance. Payment>=5000USD, 40% T/T in advance, balance before shipment.
5.Q: What is the payment method?
A: We can accept Bank Transfer, T/T, PayPal, Western Union, Money Gram, Cash etc.
6.Q: Will you provide OEM service?
A: OEM & ODM services available
7.Q: How long is the product warranty?
A: 1 year.