Model 8670 SUREFLOW Room Pressure Controller Manual - TSI
Model 8670 SUREFLOW Room Pressure Controller Manual - TSI
Model 8670 SUREFLOW Room Pressure Controller Manual - TSI
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Chapter 5<br />
Setpoints Menu<br />
The <strong>SUREFLOW</strong> <strong>Room</strong> <strong>Pressure</strong> <strong>Controller</strong> is a very versatile device which may<br />
be adjusted to control and alarm at different setpoints to meet your specific<br />
application. This Chapter is a guide to the SETPOINTS menu of the<br />
<strong>SUREFLOW</strong>. This menu is used to select the control, remote, low alarm, high<br />
alarm, and no-flow alarm setpoints.<br />
Adjusting the setpoints is done by using the keypad operations detailed in<br />
Chapter 4 of this manual. The setpoints may also be adjusted using the RS-485<br />
Communications port and the RS-232 Serial Port. Data in the setpoint menu is<br />
stored by pressing the SELECT key after a data change has been made. The unit<br />
will respond that data is saved by indicating "Saving Data" on the display<br />
and sounding three beeps.<br />
If you are unfamiliar with the keystroke procedure to program the controller,<br />
please read Chapter 4, "Structure of Instrument," for a detailed explanation.<br />
Access Code An access code is used to prohibit unauthorized access to the SETPOINTS menu. If<br />
you attempt to enter the SETPOINTS menu when the access code is enabled, "Enter<br />
Code" flashes on and off on the display. To enter the menu, enter the SETPOINTS<br />
menu access code found in Appendix E.<br />
Description of<br />
the SETPOINTS<br />
Menu Items<br />
If the access code is entered correctly, the SETPOINTS menu will be accessed.<br />
Item<br />
SETPOINT<br />
Description<br />
The SETPOINT function is used to set the control setpoint.<br />
The <strong>SUREFLOW</strong> controller will maintain this room pressure<br />
during normal operating conditions.<br />
REMOTE SETP The REMOTE SETP function is used to set a remote control<br />
setpoint. This function instructs the <strong>SUREFLOW</strong> to control at<br />
the REMOTE SETP setpoint. A REMOTE SETP condition<br />
is initiated when the REMOTE SETP contact input has been<br />
closed, or a command is received through the RS-485<br />
network.<br />
LOW ALARM The LOW ALARM function is used to set the LOW ALARM<br />
setpoint. A low room pressure alarm condition is initiated<br />
when the magnitude of the room pressure falls below or<br />
goes in the opposite direction of the LOW ALARM setpoint.<br />
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