manometer Inteligjente dixhital

I. Introduction
This product is controlled electric contact pressure gauge pressure measurement, with reliability, long-term stability of the design that combines the world’s leading micro-processing technology and advanced analog-digital conversion algorithm, to achieve high precision, low power requirements. Large-screen LCD display technology, make the data easy to read. Corrosion-resistant, anti-vibration, can be used in a variety of complex environments. Ceramic sensor durability, safety and health, can be used in food hygiene industry, is to replace traditional mechanical ideal. Widely used in a variety of liquids, gases, pressure measurement occasions. Two threshold settings, two normally open electrical contacts, can control and alarm devices and power devices. Factory calibration, the user free calibration. Pressure on large-screen liquid crystal display value, convenient on-site workers to operate.
1. Performance indicators:
measuring substances: gas, liquid, flammable substances must be indicated when ordering
supply voltage: DC 24V
maximum load electrical contacts: 5A (AC250V)
Reference Accuracy: 0.25 %; 0.5%; 1.0%
Operating temperature: -10 ~ 85
transport temperature: -30 ~ 50 degrees
data update rate: 3 times / sec
over Range: 10% < BR> 2. System connection diagram:

3. Assembly use:
4.1.
Meter installation instructions with dry ceramic pressure sensor, no requirements on the installation point of view. Mouth pressure meter into the outer rib and the use of M20 is connected to pressure vessels, but also other types of connections can be customized interface. Instrument Dimensions see other chapters.
4.2. When the first measurement instrument that uses a fixed
pipeline or pressure vessel in order to ensure measurement accuracy, measurement of gas or liquid temperature preferably at room temperature, 85instrument can also measure the following gases or liquids, then the accuracy will losses.
4.3 Wiring

Figure 1: Wiring diagram
connection Note: Use a common point of two contacts to reach the upper limit set value set
When the high limit contacts with the contacts common point turn, when the contacts to reach the low limit, low limit contacts with the contacts common point turn.
Negative side for the suspended power cable connectors, engineering staff may be negative power supply connected with the electrical connector, and then sealed with insulating tape.

Figure 2: Schematic diagram of panel buttons
4.4. Contact
the instrument threshold setting has two normally open electrical contacts, the proper use of the pressure value before the action to set the factory default values of the two movements are full scale pressure. The lower half of the front instrument panel can be seen three operating buttons (see Figure 2), the most right button to enter the pressure value is responsible for setting mode, the middle button to set the confirmation button. Press Set to enter key (1 second after the release, you can enter the high limit contact pressure values setup program, then the LCD screen display is the last set value, then press the key to increase value, press the key decrease the value, get the pressure you want to set the value of the time, press the OK button to release more than 1.5 seconds, then store the high limit contact pressure values, and immediately enter the lower limit value of electric contact pressure of the setup process, an electrical contact as above setting methods, and then press the Enter key to thoroughly after 1.5 seconds to complete the setup.
4.5.
electrical contacts to use the instrument has two normally open electrical contacts (normally closed can be customized), when the pressure exceeds set operating pressure value, the corresponding electrical contacts closed and, electrical contacts can withstand 5A, 250V AC voltage.
4.6 Dimensions

4.7 Diagnosis:
This product has been range sensor failure diagnosis and protection function, when the pressure sensors are not reliable when connected to the circuit, instruments can automatic diagnosis to the state and the LCD screen shows "Err" message. This status has been maintained until the sensor to re-secure work.
When measured over a pressure range of instruments measuring range of 10% of the time, this time for over-range condition, the security instrument proposed to address this situation in a timely manner. This case, the LCD screen will be displayed pressure values, but the accuracy will be reduced.
To prevent instrument damage, often used in the use of more than 20% of the maximum pressure measurement range of the instrument.
Common fault information: