[IT168 evaluation] business in many notebook computers is a very unique category, on the performance of it is not as good as the game, on the appearance of it is not as stylish, light and thin as thin this, but has always been with the business of its calm atmosphere Demeanor and durability features are deeply loved by consumers. In addition to high-end business books with high prices and high prices, for mainstream newcomers or student friends, mainstream business books are the better choice. HP ProBook The series has always been the representative of mainstream business books. Although the price is mainstream but its quality is also good, today, the HP ProBook 430 G4 equipped with a new seventh-generation Core processor has also come to us. Let's take a look at this business. Instinct cannot be a good companion for business people. Appearance: Simple Business Fan Body Lightweight Like its high-end EliteBook, the HP ProBook 430 G4 also follows the simple and atmospheric design concept in its overall design. Although the price is not high, the A surface is still made of metal and is matte-finished, compared to other commonly used skin types. Quality coating, metal scrub process not only touch the cold metal texture, but also to avoid contaminating fingerprints. The logo on the A-side center is still familiar with the glossy finish, and it will not make people feel too monotonous. At the same time, this family-oriented design also gives ProBook and the high-end EliteBook a similar business temperament, and will not be due to ProBook's price-friendliness. The appearance of shrinking. In the four corners of the fuselage, we can see the arc processing of the HP ProBook 430 G4. For a business book that is often held by hand, it will undoubtedly greatly enhance grip, avoid picking up hands, and it will not make the appearance. Looks too rigid. As an important feature of the business notebook, the HP ProBook 430 G4 is equipped with a 13.3-inch matte display that is more professional than reflective mirrors that tend to reflect light visually, while the C-plane uses a different drawing process than the A-side, although Different processes, but business temperament remains unabated. The D surface of the HP ProBook 430 G4 maintains the same silvery color as the A surface. At the same time, we can see that the HP ProBook 430 G4 is completely different from the EliteBook design. On the D side, HP did not use the popular one for this mainstream business product. Instead of maintaining a modular design that is very convenient for the hands-on party. This way, even if a middle-to-low model is purchased because of economic conditions at the time of purchase, the user experience can be greatly improved through post-upgrade. . After watching the overall appearance of the HP ProBook 430 G4, let's take a look at the details of the fuselage. In the foregoing, we mentioned that the C surface of the HP ProBook 430 G4 also has an aluminum wire drawing process. It has the same simple style as the entire machine, and even has only one palm rest sticker. The large palm rest can be provided when the user enters text. A good sense of support. In terms of function keys, the HP ProBook 430 G4 is designed with independent WiFi switch keys and mute keys, which is very useful for professionals who are often in flight or conference. The keyboard of HP ProBook 430 G4 adopts a full-size keycap and also has the common splash-proof function in the business book. The keystroke of the keyboard is moderate, the percussion feeling is light, the feedback is good, and the feeling during the text input is more comfortable. The touchpad associated with the keyboard is an integrated touchpad, sliding click feel good. The keyboard of HP ProBook 430 G4 adopts a full-size keycap and also has the common splash-proof function in the business book. The keystroke of the keyboard is moderate, the percussion feeling is light, the feedback is good, and the feeling during the text input is more comfortable. The touchpad associated with the keyboard is an integrated touchpad, sliding click feel good. In terms of interface configuration, in addition to the popular VGA, HDMI, and RJ45 network ports in the business, the HP ProBook 430 G4 is also equipped with a USB Type-C interface that conforms to the development trend of mobile devices. As a business book, performance is not the most important, and certainly not bad. In this regard, HP ProBook 430 G4 is equipped with the latest seventh-generation Core i5 processor i5-7200U, compared to the previous generation i5- 6500U, i5-7200U in the processor performance has not small increase, the default frequency is also raised to 2.5GHz, with seven generation i5 help out, HP ProBook 430 G4 to meet the office tasks naturally will not be too much problem. In addition, HP ProBook 430 G4 is also equipped with 4GB DDR4 memory and 500GB 7200 mechanical hard drive, how its performance, and Xiaobian together to see it. HP ProBook 430 G4 is equipped with the latest Intel Core i5-7200U processor, the core code name is Kaby Lake, based on the 14nm process, with dual-core four threads, three-level cache is 3MB, the default frequency is 2.5GHz, Turbo frequency up to 3.1 In GHz, whether it is the default frequency or the highest frequency, the i5-7200U is not a small increase compared to the i5-6500U. Through the CPU-Z test, we can see that, whether it is single-core performance or multi-core performance, i5-7200U will exceed i7-4558U, in fact, i5-7200U single-core performance is comparable with i7-6500U. As a thin and light business notebook with a thickness of less than 2cm, the HP ProBook 430 G4 does not have a discrete graphics card that will reduce the battery life and increase the heat. Instead, it is equipped with Intel HD Graphics HD652. In the 3DMARK 11 Performance Mode test, HD620 The core graphics score reaches P1323. This graphics performance is naturally used to deal with business office without any problems. We used the CineBench R15 to test the performance of the processor and the graphics card. In the R15, we can see that the Core i5-7200U processor has achieved a 320cb score, which is almost the same as the i7-6500U. On the video card side, the HD620 core graphics card has been 33.65 FPS score. The next thing we are going to do is test the performance of the whole machine, mainly through the PC Mark8. In the Work environment test of PC Mark8, the HP ProBook 430 G4 scored 4240 points. The performance of this machine has been able to meet various office tasks, and 4GB DDR4 memory with a frequency of 2400MHz can also have faster read and write speeds. The 500GB 7200rpm hard drive performed well in terms of speed and capacity, and the performance of the HP ProBook 430 G4 was sufficient to reassure workplace professionals. Maybe they are more concerned about is not the performance, but the stability and continuity of the operation, which is related to heat, life-related, and then we will bring everyone the heat and endurance test. Thermal test: excellent thermal performance and office cooling performance Natural heat dissipation is one of the most important factors that affect the user experience. If the heat dissipation is not good, the keyboard fever will greatly affect the text input experience. In this case, the heat dissipation performance of the business book, which often requires a large amount of text input, is very important. , And HP's ProBook 430 G4 cooling capacity gave me a little surprise, whether it is the extreme temperature of the state of the machine or simulate the temperature of the continuous work is controlled very well. We used the AIDA64 system stability test to squash the extreme performance of the HP ProBook 430 G4. After 30 minutes, the thermal imager was used to observe the airframe temperature performance. After the system stability test was conducted for 30 minutes, the maximum temperature on the keyboard surface was only 45°, and the bottom heat was mainly concentrated near the heat exhaust outlet, which was as high as 55°. This also indicated that the internal thermal module design of the HP ProBook 430 G4 was very reasonable. The heat can be discharged well without affecting the life of the components inside the machine. Everyone should never be scared by the temperature of the limit state. In the daily use of the business book, it is almost impossible to meet the scenario that needs to squeeze 100% of the processor's performance. For this purpose, we also tested a large number of continuous office scenarios with the PC Mark8 Work environment to verify the thermal performance of the HP ProBook 430 G4 in daily use. The maximum stability of the front fuselage does not exceed 35° and there is no excess near the bottom heat dissipation air outlet. 39°, this cooling performance is really amazing, and the excellent cooling performance will also bring users a more comfortable experience. Endurance Test: Unplugged office for 8 hours is not a dream As a 14-inch business thin and light book, going out to work is something that we often encounter. At this time, battery life is very important. For this reason, we continuously simulate a large amount of document input through the battery life testing under the PC Mark8 Work environment. Office tasks such as video conferencing, data processing, web browsing, and so on, in just 7 hours and 14 minutes later, the HP ProBook 430 G4 went into hibernation because of low battery power. In the test, we achieved good results of 7 hours and 14 minutes. In the daily office environment, we did not have 8 hours of unplugged battery life. We did not use the power-saving mode during the test if we encountered very severe Conditions, and then open the power-saving mode, life can do more than 10 hours, in terms of battery life, HP ProBook 430 G4 performance and heat as good. Summary: The first business book for young people As an internationally renowned commercial PC manufacturer, Hewlett-Packard has a well-established layout for commercial products. Compared with the powerful workstations and the thin and elegant EliteBook series, the ProBook is undoubtedly the more mainstream and more user-friendly business book, and in terms of configuration, i5 - The addition of the 7200U also puts the HP ProBook 430 G4 in the mainstream of performance. Modular design also allows users to add more convenient configurations. More importantly, the HP ProBook 430 G4 has many cooling features that cannot be matched by the same price point products. Endurance, which is its most attractive place as a mainstream business. The top-level businesses facing the high-end business crowd are on the market in an endless stream. Extremely thin design, amazing ultra-narrow frames, advanced screen materials, and elegant body materials can all become the highlights of top-tier business users. The prices of top-tier business books have skyrocketed. Compared with these expensive office equipment, they are actually more of a business people who have just entered the workplace or entered the workplace. They have a strong demand for business but not so much. With a high budget, for this group of users, mainstream prices, mainstream configurations, and above-average business features, the HP ProBook 430 G4 has enough potential to become their first business book with every one of them in the workplace. footprint. High Voltage Laboratory Power Supplies
The LTP series laboratory high-voltage power supply is a high-voltage power supply specially designed for high-voltage laboratory applications with high precision, high stability, and low ripple output characteristics. Built in 19 inches, 2U standard chassis with designed output power at 1KW and output voltage ranges 1KV to 60KV.
High Voltage Lab Power Supplies, High Voltage Laboratory Power Supplies, High-voltage Lab Power Supplies, Laboratory High Voltage Power Supplies, Lab High Voltage Power Supplies Yangzhou IdealTek Electronics Co., Ltd. , https://www.idealtekpower.com
â–² A corner of arc processing
â–² HP ProBook 430 G4 thickness of only 1.98cm, light weight to 1.49kg
â–² C side brushed texture
â–² D-face with modular design
▲ The maximum opening and closing angle of the screen is 145°
â–² The left side of the camera is an on indicator with a microphone on each side
â–² The power button on the upper left of the keyboard
â–² Independent WiFi switch and mute button on the top right of the keyboard
â–² Speaker area above the keyboard
â–² The left side of the palm rest ProBook logo
â–² palm rest on the right side of the seven generation Core i5 logo and fingerprint recognition sensor
â–² integrated touchpad
â–² left side of the fuselage from left to right is the notebook security keyhole, heat vent, USB3.0 interface, headphone microphone combo jack and SD card slot
â–² The right side of the fuselage from left to right are USB Type-C interface, USB3.0 interface, HDMI interface, VGA interface, RJ45 network interface and power hole
â–² Configuration list
â–² HD620 Core Graphics
After optimizing the output stability and output ripple on the basis of the 1KW high-voltage power module, the stability and ripple of the high voltage lab power supplies can reach the level at 0.1%.
The high-voltage laboratory power supply is also a constant-voltage and constant-current type high-voltage power supply. The output voltage and current can be continuously adjusted from 0 to the rated value via the added control potentiometers added to the front panel, high resolution LEDs display for output KV and mA are also added for intuitive measuring of high voltage laboratory bench.
The lab high voltage power supply is also equipped with DB9 interface as standard. Customers can apply 0-10V signals and dry contact signals to the interface according to our interface definition to achieve comprehensive control and monitoring functions on the power supply, like high voltage start / stop, output setting and reading.
The LTP series laboratory high voltage power supply is equipped with complete protection functions, which can deal with sparking, short circuit, overload, load discharge and other situations.
At present, the high-voltage laboratory power supply is mainly used in Laboratory power, High-voltage test stands, Electrostatics, Capacitor / Insulations testing and Electrophoresis applications.