Selection oftemperature and pressure sampling points: (Figure 8)
1. The temperature sensor (PTl00) is cut a hole (the diameter ofthe hole is 025) after 5D downstream ofthe flow meter,
weld the base, and tighten the temperature sensor.
2. The pressure transmiter takes pressure from the suction port (1/4 "NPT') on the lower side ofthe flow meter, Or flowmeter downstream 3 D pressure.
Installation should pay attention to the problem:
1.Note that the flow direction of the arrow on the table body should be consistent with the direction ofthe medium flow.
2.The inner diameter ofthe gasket on both sides ofthe flowmeter shall not be less than the inner diameter ofthe flowmeter!
3.Pay special attention to whether the flange connection flowmeter and the pipeline are aligned;
4.When welding llanges, the flow meter must be removed to avoid excessive welding temperature damage to the sensor probe.
Product wiring
Precession flowmeter, output signal is 4-20mA, can display instantaneous flow, cumulative flow, etc., canalso be connected to the computer system and flow display integrator.
The terminal board is used to connect external power supplies and output pulses. The power supply voltageranges from 12Vto 32V.
Several common wiring methods are listed below:
Menu operation
1.Display
LCD adopts 128*64 dot matrix display and supports multi-variable display. This meter supports two display modes:【 Three line display mode 】
When the third line is displayed, it is displayed as shown in the following figure:
Other display description:
lf the pressure or temperature sensor is set to "Automatic collection" mode and a sensor failure is detected, the corresponding value is replaced by the "manual" setting value and flashes. The manual setting values here refer to the "gaspressure" and "gas temperature" entered in the menu.
When the flow mode is saturated steam pressure compensation, the temperature sensor is not collected and the temperature value is displayed as---------,indicating that it is not in use.
When the flow mode is saturated steam temperature compensation, the collection of the pressure sensor is not started, and the pressure value is displayed as "--------",indicating that it is not in use.
In the normal display state, you can set the display frequeney, pressure, temperature, density, current, and percentage in the third line by long pressing the M key.
The third line shows the variable prompt as follows:
【 Two-line display mode 】
When the third line display is turned off, the second line display is fixed, as shown in the following figure.
2.Detailed description of the field key function
2.1 Deseription ofthe basic functions of keys
This product supports the "three-button" operation mode, The basic functions ofthe three keys are as follows:
2.2 Field configuration entry and exit
Enter the field configuration
In the "Normal display" state, press the "Z" key to enter the "Live Configuration". The parameters of"FieldConfiguration" can be set by "Direct digital input" and "Menu selection"
Exit the site configuration
In the "Field Configuration" state, press the "Z" key to exit the "Field Configuration" and enter the "Display" state.
Note: This instrument records the status when the last exit button was set, press "Z" to return to the status when the last exit
2.3 Data setting method
Field setting parameters are divided into two types: "Menu selection" and "Direct digital input".
Menu Selection setting method
Long press the M key and the underline moves to the second line, indicating that the Settings can be changed.
Press the M key to scroll up, or press the S key to scroll down. During the data setting process, hold down the M key to save the Settings. After saving, the underscore is automaticallymoved to the first line;
Direet Digital Input setting method) Long press the M key and the underline moves to the second line, indieating that the Settings can be changed.Press the M key to switch symbols.
Press the S key to shift to the right, the underscore is moved to the first digit, indicating that it can be modified, short
press the M key, and the number is increased by one.Press the $ key again to set the numbers in sequence, and the setting method is exactly the same as the first digit.In the process ofdata setting, long press the M key to save the setting data; Or press Z to exit Settings.For example, the original range limit is 200, and the new range limit is 400, The English menu display is used as an example.
Special Version:
During the setting process, hold down the M key for three seconds to save and end the data settingDuring the setting process, press the "Z" key to exit the current setting without saving it, Or return to the previous menuAfer setting or exiting the setting, the system stays in the current setting screen.
