◎ Applications
HT-23 Pressure Calibrator is an important part of the digital pressure calibration system. The pressure calibrator produced by our company in sealing, pressure building and micro-adjustment etc parts are all at the forefront of similar products. According to the relevant national standards and the relevant standards of the Ministry of Machinery, after many tests, the pressure Calibrator produced by our company have exceeded several times of the relevant standards.
HT-23 Pressure Calibrator is pneumatic pressure source for calibrating pressure (differential pressure) transmitters, pressure sensors, pressure gauges and other pressure instruments.

◎ Characteristics
◆ Easy to operate and easy to maintain
◆ Fine-tuning, push-pull pressurization, remote transmission for verification instrument, minimal controllable high adjustment fineness
◆ Positive and negative pressure in one body, positive and negative pressure switching is convenient
◆ No leakage

◎ Technical data
◆Model: HT-23
◆Pressure range:( -60～60)kPa
◆Minimum controllable adjustment range: 0.1Pa
◆Volume: 245mm×165mm× 190mm
◆Weight: 2.5kg

◎ Instructions
Positive pressure verification: (The pressure will be stable when pressure reach to verification point and stabilizes for about 20 seconds.)
1.Turn on the pressure relief valve counterclockwise, exit the screw completely, Or withdraw a certain length according to the required pressure;
2.The trim valve is placed in the middle position;
3.Turn off the pressure relief valve clockwise;
4.Connect checked and standard instrument;
5.Clockwise (counterclockwise) rotate pressure regulating handle, make the pressure completely set at the verification point, fine adjustment with a trim valve, up to 0.1Pa.
6.Record the standard data and data of the point, the first verification point check ends.
7.Repeat steps 5-6, boost in turn, until the upper limit (full scale) of the inspected point, boost verification process finished.


When do buck verification process, only need to counterclockwise rotate pressure regulating handle or slightly open the pressure relief valve.


◎Company Introduction
Xi'an Automation Instrument No.1 Factory is an elder state-owned enterprise, mainly producing and selling pressure gauges, thermometer instruments and some related accessories. For decades, we are focusing on market-orientation, taking competitive advantages and customer satisfaction as our goal, striving for perfection and continuously transcend. Now we have become one of the most varieties, largest scale and strongest technology manufacturers in the instrument areas of China. Our products not only sell to the customers of China over 20 provinces, but also export to countries all around the world, like US, Russia, France, Korea, South Africa and so on.
In recent years, facing new market environment, to achieve the sustainable development of the enterprise, we continuously reform and innovation. On the one hand, we strengthen the ability of staffs, cost control and products quality control; on the other hand, we improve the company image, reputation and the brand awareness to maximize meet customer needs. To create a high-quality management and research team of our products, we cooperate with famous universities, scientific research institutions, world-wide famous manufacturers in instrument technology area so that our products will always keep the good quality and core competitiveness.

◎WHY US?

1)The quality of ZOHA products

ZOHA Products are all 100% inspected , and with standard production process.

2)Price

We can provide our high quality products with reasonable price.

3) OEM services

In the past years, we have many OEM orders from very famous company in Russia,Ukraine,USA,Germany and European market .

4) Delivery

Our company provides in-time delivery

5) Service

Our company provide best after-sale service all the time , for our goal is a long trade cooperation term.

6)Reputation

Our factory have more than 20 years experiences and have already gaining the best reputation and response from the customers from all over the world.
We may accept consumers order with special requirement for instrument and meter!
Contact: Shirly Lai

Xi'an Automation Instrument No.1 Factory is a professional state-owned manufacturer established in 1998, mainly producing and selling pressure gauges, thermometer instruments and some related accessories. Now We have three factories in China, concentrated on producing all kinds of pressure gauges and thermometers, totally 16 workshops and 2 technology laboratory for products development. We are the manufacturer of the most varieties, most complete specifications and the strongest technical force in the area of pressure instruments and temperature instruments of China. Our products not only sell to the customers of China over 20 provinces, but also export to countries all around the world, like US, Russia, France, Korea, South Africa , Denmark , Japan and so on.