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Halma Alicat Scientific IVCD, Руководство по эксплуатации

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2021.05.26 

• 

REV. 1 

• DUAL-VALVE PRESSURE CONTROLLER OPERATING MANUAL

 5

Quick Start Guide

Setup

Connect your pressure controller.

 

Choose your engineering units.

 You can 

choose the measurement units by selecting 

MAIN 

MENU

 

→

 

SETUP

 

→

 

Sensor

 

→

 

Engineering Units

, see 

page 16

 for more details.

Operation: Pressure Verification

Monitor live pressure readings. Readings are 

updated and displayed on your device in real 

time. See 

page 11

.

Connectors and Buttons

The drawing to the right represents a typical 

configuration of a standard dual-valve pressure 

controller. Your pressure controller’s appearance 

and connections may differ. See 

page 2

 for 

more examples.

Backlight

The monochrome display comes equipped with 

a backlight. 

To toggle the backlight power, 

press the logo on the front of your device

.

For optional color TFT displays, pressing this 

button will turn off the display to conserve power. 

See 

page 11

.

Maintenance and Care

Pressure controllers do not require cleaning 

when flowing clean, dry gases. Read more on 

page 22

.

Calibrate your device annually. To schedule a 

calibration, please contact support (

page 2

).

This is a typical 

dual-valve gauge 

pressure configuration.

This is a typical 

dual-valve differential 

pressure configuration.

Содержание Alicat Scientific IVCD

Страница 1: ...OPERATING MANUAL FOR DUAL VALVE PRESSURE CONTROLLERS Models PCD PCDS PCD3 IVCD...

Страница 2: ...ler every year Annual calibration is necessary to ensure the continued accuracy of readings and to extend the Limited Lifetime Warranty Fill out the Service Request Form at alicat com service or conta...

Страница 3: ...sure controllers for closed volumes PCDS Series anti corrosive absolute gauge and differential pressure controllers for closed volumes PCD3 Series remote sensing pressure controllers for closed volume...

Страница 4: ...PD I Control Algorithms 13 Tuning the PD PDF Control Algorithm 13 Tuning the PD I Control Algorithm 13 Troubleshooting Valve Performance with PID Tuning 14 Using a Control Deadband for Pressure Contr...

Страница 5: ...ndard dual valve pressure controller Your pressure controller s appearance and connections may differ See page 2 for more examples Backlight The monochrome display comes equipped with a backlight To t...

Страница 6: ...ode active HLD Valve hold active LCK Front display is locked POV Pressure over range of device Mounting Pressure controllers do not require straight runs of pipe upstream or downstream Most pressure c...

Страница 7: ...need Teflon tape applied to the threads Warning It is not recommended to use pipe dopes or sealants on the process connections as these compounds can cause permanent damage to the controller should th...

Страница 8: ...tween two points in the system These devices have two ports located on the front face of the unit for connection to two points in the system where the differential pressure is measured from The upstre...

Страница 9: ...nstruments with Liquids Many pressure devices may be used with chemically compatible liquids but a few warnings must be taken into account Water is about 50 times more viscous than air This is importa...

Страница 10: ...ndard 0 5 Vdc analog output signal Pin 2 is normally a constant 5 12 Vdc More pinout configuration options begin on page 24 Analog Signals Primary Analog Output Signal Most devices include a primary a...

Страница 11: ...to Tare Before every new pressure measurement cycle After significant changes in temperature or pressure After dropping or bumping the pressure controller After installing the controller in a differen...

Страница 12: ...set to Serial Front Panel the controller will accept input from either the front panel or an RS 232 RS 485 connection Neither source is a slave of the other so the controller will accept the most rec...

Страница 13: ...ow to actuate its valve s in order to achieve the commanded setpoint These settings are tuned for your specific operating conditions but changes to your process sometimes require on site adjustments t...

Страница 14: ...nd of 0 25 PSIA allows absolute pressure to vary between 29 75 and 30 25 PSIA The device will increase pressure until it reaches the setpoint of 30 PSIA With a setting of Close valve it will close bot...

Страница 15: ...Only in the serial data frame Screen and Digital Both the main display and serial data frame Device Information The ABOUT menu MENU ABOUT contains useful information for setup configuration and troub...

Страница 16: ...g and logging of all data Before connecting the pressure controller to a computer ensure that it is ready to communicate with your computer by checking the options in this menu For more on how to issu...

Страница 17: ...isplay Screen Lighting The options and wording in the screen lighting menu will vary for monochrome versus color displays On monochrome displays press LESS CONTRAST or MORE CONTRAST to adjust the cont...

Страница 18: ...others can be used if the computer its software and the controller are all set to the same rate Data bits 8 Parity none Stop bits 1 Flow control none Alicat s Serial Terminal Application Alicat s Ser...

Страница 19: ...eads zero Taring an absolute pressure sensor requires a barometer and aligns the absolute pressure sensor with the external barometric pressure For an accurate tare a gauge or absolute pressure sensor...

Страница 20: ...us sign New setpoint unit ID s floating point number setpoint Example as 15 00 setpoint of 15 00 PSIG Quick Command Guide Note Serial commands are not case sensitive In these examples the unit ID of t...

Страница 21: ...sure standard you know is accurate If it checks out keep using it but tell us about the drop at your next annual recalibration so we can check it out for you Issue How can I see pressure in different...

Страница 22: ...Unit ID to make sure you are addressing it properly with your serial commands 3 Check the pinout common pinouts are listed starting on page 24 4 Make sure the COM number matches the one your software...

Страница 23: ...rrD Torr mmHgA mmHgG mmHgD Millimeter of mercury at 0 C inHgA inHgG inHgD Inch of mercury at 0 C mmH OA mmH OG mmH OD Millimeter of water at 4 C NIST conventional mmH OA mmH OG mmH OD Millimeter of wa...

Страница 24: ...ptional 1 5 Vdc or 0 10 Vdc output signal 7 Power In 8 Ground common for power digital communications analog signals and alarms Caution Do not connect power to pins 1 through 6 as permanent damage can...

Страница 25: ...og Out Analog Out Analog Out RX or A Analog Out NC Analog Out 3 Ground Analog In NC NC NC NC NC 4 NC Ground NC NC NC Analog Out NC 5 Power In Ground Power In Ground Ground Power In Ground 6 NC Ground...

Страница 26: ...nalog Setpoint Input Analog Setpoint Input 5 Serial RS 232 TX signal Optional RS 485 B Serial RS 232 TX Signal Optional RS 485 B 6 Static 5 12 Vdc Optional Secondary analog output 4 20 mA 0 5 Vdc 1 5...

Страница 27: ...2021 05 26 REV 1 DUAL VALVE PRESSURE CONTROLLER OPERATING MANUAL 27...

Страница 28: ...d Plot No A 147 Road No 24 Next to Spraytech Circle opp Metropolitan Company Wagle Industrial Estate Thane West Mah r shtra 400 604 91 022 41248010 China SE Asia info cn alicat com alicat com cn 2nd F...

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