TSI Instruments SUREFLOW 8670 Operation manual

Model 8670
SUREFLOW TM
Room
Pressure
Controller
Operation and Service
Manual
September 1994
P/N 1980148 Rev. C

Model 8670
SUREFLOW TM
Room
Pressure
Controller
Operation and Service
Manual
September 1994
P/N 1980148 Rev. C
U.S. AND CANADA OTHER COUNTRIES
Sales & Customer Service: Sales & Customer Service:
[phone]/[phone] (001 651) 490-2711
Fax: Fax:
[phone] (001 651) 490-2874
SHIP TO: MAIL TO:
TSI Incorporated TSI Incorporated
ATTN: Customer Service P.O. Box 64394
500 Cardigan Road St. Paul, MN 55164
Shoreview, MN 55126 USA
USA
E-MAIL
[email protected]
WEB SITE
www.tsi.com

ii
Copyright - TSI Incorporated/September 1994/All rights reserved.
Part number 1980148 Rev. C
LIMITATION OF WARRANTY AND LIABILITY
Seller warrants that this product, under normal use and service as described in the operator's manual, shall
be free from defects in workmanship and material for a period of twenty-four (24) months, or the length of
time specified in operator's manual, from the date of shipment to the customer. This limited warranty is
subject to the following exclusions:
1. Batteries, hot wire or hot film sensors and certain other components when indicated in
specifications are warranted for a period of 90 days from the date of shipment to the customer.
2. With respect to any repair services rendered, seller warrants that the parts repaired or replaced will
be free from defects in workmanship and material, under normal use, for a period of 90 days from
the date of shipment to the customer.
3. Seller does not provide any warranty on finished goods manufactured by others. Only the original
manufacturer's warranty applies.
4. Unless specifically authorized in a separate writing by seller, seller makes no warranty with
respect to, and shall have no liability in connection with, any goods which are incorporated into
other products or equipment by the Buyer.
The foregoing is IN LIEU OF all other warranties and is subject to the conditions and LIMITATIONS
stated herein. NO OTHER EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR
PARTICULAR PURPOSE OR MERCHANTABILITY IS MADE.
THE EXCLUSIVE REMEDY OF THE USER OR PURCHASER, AND THE LIMIT OF THE
LIABILITY OF SELLER FOR ANY AND ALL LOSSES, INJURIES, OR DAMAGES IN
CONNECTION WITH THIS PRODUCT (INCLUDING CLAIMS BASED ON CONTRACT,
NEGLIGENCE, STRICT LIABILITY, OTHER TORT, OR OTHERWISE) SHALL BE THE
RETURN OF THE PRODUCT TO THE FACTORY OR DESIGNATED LOCATION AND THE
REFUND OF THE PURCHASE PRICE, OR, AT THE OPTION OF SELLER, THE REPAIR OR
REPLACEMENT OF THE PRODUCT. IN NO EVENT SHALL SELLER BE LIABLE FOR ANY
SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES. NO ACTION, REGARDLESS OF
FORM, MAY BE BROUGHT AGAINST THE SELLER MORE THAN ONE YEAR AFTER THE
CAUSE OF ACTION HAS ACCRUED.
The purchaser and all users are deemed to have accepted the terms of this LIMITATION OF
WARRANTY AND LIABILITY, which contains the complete and exclusive limited warranty of seller.
This LIMITATION OF WARRANTY AND LIABILITY may not be amended or modified nor may any of
its terms be waived except by a writing signed by an authorized representative of seller.
SERVICE POLICY
Knowing that inoperative or defective instruments are as detrimental to TSI as they are to our customers,
our service policy is designed to give prompt attention to any problems. If any malfunction is discovered,
please contact your nearest sales office or representative, or call TSI's Customer Service department at
[phone].

iii
CONTENTS
Page Number
PART ONE Introduction ......................................................................................1
Chapter 1 Getting Started .......................................................................................3
Chapter 2 How to Use This Manual........................................................................5
Chapter 3 Operation................................................................................................7
PART TWO Programming the Instrument....................................................13
Chapter 4 Structure of Instrument...........................................................................15
Chapter 5 Setpoints Menu.......................................................................................21
Chapter 6 Configure Menu......................................................................................25
Chapter 7 Calibration Menu ....................................................................................29
Chapter 8 Control Menu..........................................................................................35
PART THREE Diagnostics and Maintenance...................................................37
Chapter 9 Diagnostics Menu...................................................................................39
Chapter 10 Maintenance and Repair Parts...............................................................47
Chapter 11 Troubleshooting......................................................................................49
PART FOUR Appendices.......................................................................................57
Appendix A Specifications .........................................................................................59
Appendix B Theory of Operation ...............................................................................61
Appendix C Control Theory........................................................................................67
Appendix D Wiring Diagram.......................................................................................71
Appendix E Access Codes.........................................................................................75

1
PART ONE Introduction
Chapters 1, 2 and 3 introduce the SUREFLOW Room Pressure Controller. This
part of the manual is written to give a broad overview of the SUREFLOW. It is
recommended that everyone read this as a starting point for understanding how
to use this manual and how the SUREFLOW operates.
Chapter 1 describes what is needed to get started, including proper
installation.
Chapter 2 explains how to use this manual.
Chapter 3 describes the operation of the SUREFLOW from a user's
point of view.
These chapters are written so that everyone can easily understand them. They
are intended to provide a general overview of the SUREFLOW and to provide a
reference for more detailed information found in later chapters of this User's
Guide.

3
Chapter 1
Getting Started
The SUREFLOW Operation and Service Manual describes how to operate,
calibrate, configure, maintain and troubleshoot the Model 8670 SUREFLOW
Room Pressure Controller. It is recommended that this manual is read
thoroughly before using the SUREFLOW.
This manual assumes that the SUREFLOW has been properly installed. Refer to
Appendix D to check wiring. Refer to the Installation Instructions if there is
any question as to whether the SUREFLOW has been properly installed.
References to the SUREFLOW keypad and digital display are highlighted in this
guide as follows:
The font DISPLAY is used to denote menus, menu items, item values
and messages as they would appear on the display.
The font KEYPAD is used to denote actual keypads on the front panel.
Step-by-step instructions are denoted by numbered circles .
Actual keys are denoted by a box as follows:
MENU
Actual displays are denoted by a box as follows:
PRESSURE
-.00085 "H2O
HELP!
Technical assistance, repair parts and service:
Contact TSI Customer Service department at [phone] (U.S. and Canada)
or (001 651) 490-2711 (other countries).

5
Chapter 2
How To Use This Manual
General
Discussion
This manual is divided into four parts. Each part is designed to cover a particular
area of interest for different people. It is recommended that everyone read the
entire User's Guide; however, the following guidelines reference the manual
sections which are relevant to your situation:
Part
Title
Who Should Read
Chapters
One
Introduction
Everyone
1-3
Two
Programming the
Instrument
Programmers
Start-up Personnel
4-8
Installers
Facility Engineers
Maintenance Personnel
Three
Diagnostics and
Maintenance
Service Personnel
Maintenance Personnel
9-11
Facility Engineers
Four
Appendices
Design Engineers
Consulting Engineers
Facility Engineers
WARNING: Every SUREFLOW is factory calibrated; the sensor and controller must therefore
be kept as a matched set.
Programming the
Instrument for the
First Time
If you are unfamiliar with the TSI SUREFLOW products and you need to program
the instrument, it is recommended that you read Chapters 1-8. Part One (Chapters
1-3) provides an overview of the instrument. The instrument block diagram
shown in Figure 3 of Chapter 4 is an excellent reference to use while
programming the instrument.
Part Two (Chapters 4-8) details how the SUREFLOW is programmed and
describes the items in the SETPOINTS, CONFIGURE, CALIBRATION,
and CONTROL menus. This Part is designed to be used as follows: User must
read Chapter 4, "Programming the Instrument," first. It shows the user how to
use the keypad to program the instrument. Once the user is familiar with the
methods needed to program the instrument, the same procedure (i.e., sequence
of keystrokes) is used to program any item of the SUREFLOW. The subsequent
chapters (5-8) describe the different menu items, but have few step-by-step
keystroke procedures. If you are having difficulties programming your
SUREFLOW, please contact your authorized TSI Manufacturer's Representative
or TSI.

Chapter 2
6
Maintaining the
SUREFLOW
If you are having problems with your SUREFLOW, Part Three (Chapters 9-11) is
your main source of reference. However, before you use this part of the manual, it
is recommended that you read Part One (Chapters 1-3) and Chapter 4. This will
provide you with the background needed to run the DIAGNOSTICS menu to
determine the cause of your problems.
Chapter 9 describes the tools available in the DIAGNOSTICS menu. The
keystrokes needed to use the diagnostics are developed in Chapter 4. Using the
DIAGNOSTICS menu should provide you with enough information to
determine the source of your problems. Once the user has made this
determination, Chapters 10-11 provide suggested courses of action.
If you have an error message on the display, the troubleshooting suggestions in
Chapter 11 will provide you with guidance to determine the cause of the error
message. The DIAGNOSTICS menu will be used frequently to aid in
determining the error.
If you are still having a problem with your SUREFLOW after using Part Three,
contact your authorized TSI Manufacturer's Representative or TSI.
Interested in
How the
SUREFLOW
Works?
Part Four, the Appendices, describes how the SUREFLOW Room Pressure
Controller works. The different appendices describe the measurement and control
techniques utilized by TSI.

7
Chapter 3
Operation
The SUREFLOW Room Pressure Controller is easy to use. Its operation is simple
and straightforward. All the information you need to know about the controlled
Room Pressure is displayed on the controller's front panel. All programming is
accessible through the keypad.
From an operator's standpoint, the SUREFLOW functions on two levels:
1. The SUREFLOW has a front panel display which provides indication of the
Room Pressure and alarm conditions via an alphanumeric display,
indicator lights and an audible alarm.
2. The SUREFLOW has front panel controls for testing the unit for proper
operation, resetting alarms, silencing alarms and programming the
instrument.
Specific details about the SUREFLOW front panel display and controls are
described on the following pages.
The front panel is shown in Figure 1, identifying the display, keys and lights.

Chapter 3
8
Figure 1. SUREFLOW Front Panel Display and Controls.

Operation
9
Front Panel
Displays
Digital Display
The alphanumeric digital display indicates the room pressure, status, menu options, and error
messages. The display indicates the room pressure continuously, the appropriate status of the
control (i.e., normal, alarm, setback, or emergency modes), the menu items as they are selected,
and the error messages when they occur.
Normal Light
The green Normal light indicates that the room pressure is in the normal
operating range. The Normal light is on when the room pressure is within the
Normal operating deadband of 20 percent of setpoint (in velocity).
Caution Light
The yellow Caution light indicates a caution condition. The Caution light
turns on when the room pressure falls outside the Normal setpoint deadband.
When the room pressure reaches the alarm region, the Caution light turns off
and the Alarm light turns on. The Caution light will come back on if the
pressure returns to Normal setpoint deadband and does not reach setpoint. The
Caution light is also on whenever the controller is in the remote setpoint mode.
Alarm Light
The red Alarm light indicates an alarm condition. The Alarm light turns on
when the magnitude of the room pressure falls below the low alarm setpoint or
is in the opposite direction. The Alarm light also turns on when the magnitude
of the room pressure is above the high alarm setpoint. The Alarm light is
accompanied with a message on the display indicating the type of alarm. When
the Alarm light is configured for alarm follow condition, the Alarm light
remains on until the room pressure returns to normal. When the Alarm light is
configured for alarm latched operation, the Alarm light remains on until the
room pressure returns to normal and the RESET key has been pressed.
Mute Light
The yellow Mute light indicates that the audible alarm is disabled. The Mute
light turns on when the audible alarm has been disabled. The audible alarm will
not sound as long as the Mute light is on.

Chapter 3
10
Audible Alarm
The audible alarm indicates alarm conditions. The audible alarm sounds
continually when the room pressure is in an alarm condition. When the audible
alarm is configured for alarm follow operation, the alarm continues to sound
until the MUTE key is pressed or the room pressure returns to normal. When the
audible alarm is configured for alarm latch operation, the audible alarm remains
on until the MUTE key is pressed or the room pressure returns to normal and the
RESET key is pressed. The audible alarm tone will beep on and off whenever an
emergency condition has been annuciated. This will continue until the
emergency condition has been terminated.
Front Panel
Controls
SETBACK key
The SETBACK key is used for in-house testing and has no function in the field.
EMERGENCY Key
The red EMERGENCY key is used to initiate the emergency mode. In this mode,
the room is controlled at either maximum negative or maximum positive
pressure, depending on the setpoint. In emergency mode, a controller with a
positive control setpoint will open the supply or will close the exhaust,
depending on what the SUREFLOW is controlling. Conversely, a controller with
a negative control setpoint will close the supply or will open the exhaust,
depending on what the SUREFLOW is controlling. The display will flash
EMERGENCY, the red Alarm light will flash on and off, and the audible alarm
will sound on and off. If the EMERGENCY key or the RESET key is pressed
during an emergency condition, the unit returns to normal operation.
TEST Key
The TEST key is used to initiate an instrument self-test. A test sequence is
started when the TEST key is pressed. The sequence displays current
information including the software version and various setpoints, and tests the
display, indicator lights, audible alarm, and internal electronics.
RESET Key
The RESET key is used to reset the Alarm light, the alarm contacts, and the
audible alarm. If the alarms are in the latched mode, the Alarm light, alarm
contacts or audible alarm are reset when the room pressure has returned to
normal and the RESET key has been pressed. The RESET key is capable of
taking the unit out of an emergency condition and is also used to reset error
messages. See the troubleshooting guide in Chapter 11 for details.
MUTE Key
The MUTE key is used to silence and/or disable the audible alarm. An audible
alarm can be silenced anytime by pressing the MUTE key. The audible alarm can
be disabled by pressing the MUTE key when the audible alarm is not sounding
and the yellow Mute light is off. The yellow Mute light turns on when the
audible alarm has been disabled.

Operation
11
Keys with Blue
Characters
The SUREFLOW has four keys with blue print that are used together to program the unit for
each application.
MENU Key
The MENU key is used to gain initial access to the menus when the unit is in the
normal operating mode. Once in the menus, the MENU key is used to escape to
the next higher level of options. The MENU key is also used to return to the
normal operating mode. The different levels are described in detail in Chapter
4.
SELECT Key
The SELECT key is used to access specific menus and items. Once a
characteristic has been chosen, the SELECT key is used to save that property in
the unit, and back out to the next higher level.
/Arrow Keys
The arrow keys are used to scroll through menu choices and possible
characteristics to be selected. The characteristics may be numerical values,
specific properties, or a bar graph, depending on item type.

13
PART TWO Programming the Instrument
Chapters 4, 5, 6, 7 and 8 cover all aspects of programming the SUREFLOW
Room Pressure Controller. This part of the manual is written to assist people
programming the instrument. TSI realizes that those programming the
instrument may have little or no experience with room pressure controllers. For
this reason, this part not only describes the procedures to program the
instrument, but also describes every menu item.
Chapter 4 describes how to program the instrument.
Chapter 5 describes the SETPOINTS menu.
Chapter 6 describes the CONFIGURE menu.
Chapter 7 describes the CALIBRATION menu.
Chapter 8 describes the CONTROL menu.
References to the SUREFLOW keypads and alphanumeric digital display are
highlighted as follows:
The font DISPLAY is used to denote menus, menu items, item values
and messages as they would appear on the screen.
The font KEYPAD is used to denote actual keypads on the front panel.
Step-by-step instructions are denoted by numbered circles .
Actual keys are denoted by a box as follows:
MENU
Actual displays are denoted by a box as follows:
PRESSURE
-.00085 "H2O
These symbols are used to show what the actual display will indicate while
programming the instrument.
If you need further assistance in programming the instrument, contact your
authorized TSI Manufacturer's Representative or TSI at [phone] (U.S.
and Canada) or (001 561) 490-2711 (other countries).