Kurz Instruments, Inc 454FT-08-MT User manual

Kurz Instruments Inc.
Series 454FT User’s Guide DCN: 360197-1.2 Rev. Ai
Kurz Instruments, Inc.
Series 454FT
Insertion Mass Flow Transmitter
User’s Guide
DCN: 360197-1.2 Rev. A
Covers MFT V 1.2x Firmware
October 15, 2003
ISO-9001 Kurz Instruments Inc.
2411 GARDEN RD
MONTEREY CA 93940-5394
USA
Telephone: [phone] or 800-424-7356
FAX: [phone] or (831)-646-1033
www.kurz-instruments.com

Kurz Instruments Inc.
Series 454FT User’s Guide DCN: 360197-1.2 Rev. Aii
Publication Notices
COPYRIGHT
COPYRIGHT© 2003. Allrights are reserved. No part of this publication may be stored
in a retrieval system, transmitted or reproduced in any way, including but not limited to
photocopy, photograph, magnetic or other record, without the prior agreement and
written consent of Kurz Instruments, Inc.
TRADEMARKS
MetalClad™, Series MFT, Series 454FT, and Series 504FT are trademarks of Kurz
Instruments, Inc. Hyper Terminal, Windows 95/98/NT are trademarks of Microsoft
Corporation. Modbus is a trademark of Modicon, a Group Schneider company.
PUBLICATION NOTICE
Every effort has been made to supply complete and accurate information to the
customer. However, Kurz Instruments, Inc. assumes no responsibility for its use, nor
any infringements of patents or other third parties which would result. In addition, Kurz
Instruments, Inc. makes no representations or warranties of any kind concerning the
contents of this publication. Under no circumstances will Kurz Instruments, Inc. be held
liable for any loss or other damages pertaining to the use of this publication.
This publication is generic in nature. No guarantee is made that this publication
conforms to the particular equipment produced for a particular application. As-built
publications entail an additional charge. Factory and on-site training in the use and
operation of Kurz Instruments, Inc. products may be made available at the buyer’s
expense, subject to agreement by Kurz Instruments, Inc.
The information contained in this publication is subject to change without notice. Kurz
Instruments, Inc. reserves the right to make engineering changes and product
improvements at any time and without prior notice. Consult your local Kurz
Instruments, Inc. Representative or a Factory applications engineer for information
regarding current specifications.
Kurz Instruments, Inc. assumes no liability for damages or injuries (consequential or
otherwise) caused by the improper use and/or improper installation of this product or
where this product is used in any application other than what it was designed for and
intended. Kurz Instruments, Inc. expressly denies any responsibility if this product has
been modified without Kurz Instruments, Inc.’s written approval or if this product has
been subjected to unusual physical or electrical stress, or if the original identification
marks have been removed or altered.

Kurz Instruments Inc.
Series 454FT User’s Guide DCN: 360197-1.2 Rev. Aiii
Equipment sold by Kurz Instruments, Inc. is not intended for use in connection with any
nuclear facility or activity unless specifically sold for such applications and specific
conditions for such usage are detailed. If the equipment is used in a nuclear facility or
activity without supporting quotation, Kurz Instruments, Inc. disclaims all liability for any
damage, injury, or contamination, and the buyer shall indemnify and hold Kurz
Instruments, Inc., its officers, agents, employees, successors, assigns, and customers,
whether direct or indirect, harmless from and against any and all losses, damages, or
expenses of whatever form and nature (including attorneys fees and other costs of
defending any action) which they, or any of them, may sustain or incur, whether as a
result of breach of contract, warranty, tort (including negligence), strict liability or other
theories of law, by reason of such use.
Kurz Instruments Inc.
2411 Garden Rd.
Monterey, CA 93940-5394
USA
Telephone: [phone] or 800-424-7356
FAX: [phone] or 831-646-1033
www.kurz-instruments.com
Document Title: Series 454FT Insertion Mass Flow Transmitter User’s Guide,
MFTV 1.2x
Document Number: 360197-1.2, Revision A
Publication Date: October 15, 2003

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receipt of payment of all balances due.
NUCLEAR QUALIFICATION Equipment sold by Kurz Instruments, Inc. is not intend-
ed for use in connection with any nuclear facility or activity unless covered by a specific quo-
tation where the conditions of such usage will be detailed. If equipment is used in a nuclear
facility or activity without a supporting quotation, Kurz disclaims all liability for any damage,
injury or contamination, and the buyer shall indemnify and hold Kurz, its officers, agents,
employees, successors, assigns and customers, whether direct or indirect, harmless from and
against any and all losses, damages or expenses of whatever form or nature (including attor-
ney’s fees and other costs of defending any action) which they, or any of them, may sustain
or incur, whether as a result of breach of contract, warranty, tort (including negligence), strict
liability or other theories in law, by reason of such uses.
Standard Conditions of Sale of Kurz Products
The Leader in Mass Flow Flow Technology for Process and Environmental Measurements
Kurz Instruments, Inc. • 2411 Garden Road, Monterey, CA93940 • 800-424-7356 • 831-646-5911 • FAX [phone]
email: [email protected] • www.kurz-instruments.com DCN 28050 Rev. D

Kurz Instruments Inc.
Series 454FT User’s Guide DCN: 360197-1.2 Rev. Av
Table of Contents
Title Page.............................................................................................................. i
Publication Notices.............................................................................................. ii-iii
Copyright..................................................................................................... ii
Trademarks................................................................................................. ii
Publication Notice....................................................................................... ii-iii
Standard Terms and Conditions of Sale ......................................................... iv
Table of Contents................................................................................................. v-xi
Introduction.......................................................................................................... 1-2
Duct Velocity Profile Correction.................................................................. 1
Sensor Insertion Location............................................................................ 1
Duct Area.................................................................................................... 1
Flow & Temperature Output Range............................................................ 2
Field Calibration.......................................................................................... 2
Sensor Pitch or Orientation to the Flow....................................................... 2
Medium to be Measured.............................................................................. 2
Kickout values for NE-43 Alarms..................................................................2
454FT Brochure (DCN 367047)..........................................................................3(1-10)
Quick Setup Guide................................................................................................5-6
Installation............................................................................................................ 7-15

Kurz Instruments Inc.
Series 454FT User’s Guide DCN: 360197-1.2 Rev. Avi
Mounting...................................................................................................... 7
Figure 1 Model 454FT Installation with Compression Fitting...................... 8
TS Version........................................................................................ 9
Field Wiring................................................................................................. 9
Safety............................................................................................... 9
Typical Hook-Up Wiring Diagrams.................................................. 10
24 VDC Powered Flow Transmitters................................................ 10
AC Powered Units............................................................................ 11
Analog Output................................................................................... 11-12
Alarms............................................................................................... 12
Serial Communications..................................................................... 12
RS-232................................................................................... 13
RS-485.................................................................................. 13
5-Wire Sensor Connections............................................................. 13-14
Orientation of the LCD Keypad .................................................................. 14-15
Operation.............................................................................................................. 17-25
Figure 2. Optional Keypad/LCD.................................................................. 17
Power-On Sequence................................................................................... 17-18
Overview of the User Interface................................................................... 18
Navigating the Menus.................................................................................. 18-19

Kurz Instruments Inc.
Series 454FT User’s Guide DCN: 360197-1.2 Rev. Avii
Selecting Menus.......................................................................................... 19
Entering Data............................................................................................. 19
Clearing Data, Editing Data or Exiting Menus............................................ 19
Holding a Menu For Display....................................................................... 19
Help Display................................................................................................ 20
Flow Meter Time Constant.......................................................................... 20
Data Logging............................................................................................... 20-21
Configuration Data Storage......................................................................... 21-24
Figure 3. Series MFT Memory Configuration................................... 22
Configuration, Upload/Download.......................................................23
Calibration of the Analog Output................................................................. 24
Calibration of the Analog Input.................................................................... 24
Alarms: Flow, Pulsed Totalization and NE-43.............................................. 24
Figure 4. NE-43 Alarm signaling on the 4-20 mA outputs................ 25
Configuration Changes...................................................................................... 27-47
Entering Program Mode............................................................................ 27-28
How to set the Meter ID............................................................................. 28-29
Meter ID with a Remote Terminal.................................................... 29
Flow Units................................................................................................... 29
Duct/Pipe Area............................................................................................ 29-30

Kurz Instruments Inc.
Series 454FT User’s Guide DCN: 360197-1.2 Rev. Aviii
Flow Meter Correction Factors..................................................................... 30-32
Variable Correction Factor (VCF) Setup............................................30-31
Sensor Blockage Correction Factor (SBCF) Setup........................... 31-32
Low & High Kick-Out.................................................................................... 32
Low Flow Cut-Off..........................................................................................32
Scroll Meter................................................................................................. 33-34
Meter Filter.................................................................................................. 34
Analog Output Range................................................................................. 34
Analog Output Calibration........................................................................... 36-37
Totalizer Reset............................................................................................ 37
Time and Date............................................................................................. 37
Log Interval.................................................................................................. 38-39
System Units............................................................................................... 39
Alarms......................................................................................................... 39
Pulse Mode Totalizer Output....................................................................... 41
Sensor Flow Calibration Data...................................................................... 42
ADC Sample Rate....................................................................................... 45
Baud Rate................................................................................................... 46
Loading Data from EEPROM to SRAM...................................................... 46
Insertion Flow Transmitter Calibration.............................................................. 48-53

Kurz Instruments Inc.
Series 454FT User’s Guide DCN: 360197-1.2 Rev. Aix
Field Calibrations........................................................................................ 48
Sensor Velocity Calibration......................................................................... 48
FactoryCalibrations.......................................................................... 49
User Calibrations........................................................................... ... 49
Figure 5Typical Calibration Sheet (DCN 180117).......................... 52
Figure 6Typical Calibration Curve................................................... 53
Maintenance and Troubleshooting..................................................................... 54-62
Maintenance................................................................................................ 54
Flow Issues................................................................................................. 55
Sensor......................................................................................................... 55
Electronics................................................................................................... 56
Table 2 Troubleshooting Chart.................................................................... 58
Return Shipment.................................................................................................. 65-66
RMA # (Return Material Authorization #).................................................... 65
Cleaning of Material to be Returned........................................................... 65-66
Shipping Material to be Returned................................................................ 66
Glossary................................................................................................................ 67-69
Appendix A Thermal Anemometer Measurements.......................................... A1-A10
Mass Rate................................................................................................... A1
Mass Flow Equations.................................................................................. A1-A4

Kurz Instruments Inc.
Series 454FT User’s Guide DCN: 360197-1.2 Rev. Ax
Reynolds Number............................................................................. A1-A2
Standard Velocity............................................................................. A2
Standard Volumetric Flow................................................................. A3
Mass Flow......................................................................................... A3-A4
Gas Property Induced Errors....................................................................... A4-A5
Pressure Changes............................................................................ A4
Temperature Changes...................................................................... A4
Temperature Profiles...................................................................... A4
Low Flow Free Convective Forces.................................................. A4
Wet vs. Dry Flow Rate..................................................................... A4-A5
Flow Profiles................................................................................................ A6
Low Velocity Laminar Profile............................................................ A6
High Velocity Turbulent Profile......................................................... A6
Correction Factors....................................................................................... A7
Use of the Flow Equations in the Kurz Mass Flow Meter.......................... A7
Single Point Insertion Flow Elements............................................... A7
Multi-Point Insertion Flow Elements................................................. A8
In-line Flow Elements....................................................................... A8
Problems..................................................................................................... A9
Answers to Problems................................................................................... A10

Kurz Instruments Inc.
Series 454FT User’s Guide DCN: 360197-1.2 Rev. Axi
Appendix B Product Approvals.......................................................................... B1-B2
Series MFTATEX Declaration of Compliance
(DCN 430040)............................................................................................. B2
Appendix C MFTCOMM....................................................................................... C1-C7
Installation.................................................................................................. C2
Menus......................................................................................................... C2-C3
Setup for Upload/Download........................................................................ C3
Saving an MFT configuration on your PC................................................... C3-C4
Viewing or Printing the Configuration File................................................... C4
Downloading a Configuration from the PC to the MFT Unit........................ C4
Figure C1, Sample printable file from MFTCOMMC................................... C5-C7
Appendix D Field Wiring Diagrams.................................................................... D1-D7
Field Wiring Diagram, Series MFT (DCN 342022)...................................... D2-D5
Field Wiring Diagram, Series MFT, TS configuration (DCN 342028)......... D6-D7
Appendix E Menu State Diagram........................................................................ E1-E9
MFT VER 1.2x Menu State Diagram (DCN 342027-1.2x)........................... E2-E9
Appendix F Signal Flow Diagram........................................................................ F1-F5
MFT Signal Flow Diagram (DCN 342030-1.2x).............................................F2-F5

Kurz Instruments Inc.
Series 454FT User’s Guide DCN: 360197-1.2Rev. A1
Introduction
The Kurz Instruments 454FT series of insertion mass flow transmitters are point velocity
sensing devices. This bivariable transmitter also measures the process temperature.
The flow element is a constant temperature thermal anemometer which intrinsically
measures the process fluid Reynold’s number. The net meter response is mass rate
per unit area. The engineering output may be scaled to represent standard velocity,
standard volumetric flow or mass rate. Density changes are automatically accounted
for negating the need for pressure and temperature compensation. A complete
description of how and what the thermal anemometer measures can be found in
Appendix A. The units must be calibrated in the gas type to be measured or may be
correlated from Air calibrations if available. The process temperature measured with
this series will read accurately (within a few degrees C) above 100 SFPM (0.5 SMPS).
The unit has an optional LCD/keypad local interface which can be used for complete
setup, control and monitoring.
The 454FT is a 3, 4 or 5-wire device whose 4- 20 mA output current is directly
proportional to the flow rate. A second 4-20 mA output can be used for temperature or
a different flow scale. The unit is available as 24 VDC, 115 VAC @ 50 to 60 Hz, or 230
VAC @ 50 to 60 Hz powered. The 4-20 mA output can be nonisolated self-powered or
isolated loop-powered. The typical configuration has all the electronics in one
enclosure, known as the TA configuration, or with just the sensor and a terminal wiring
board in a separate enclosure from the electronics in the TS configuration. Both cases
are shown in the field wiring diagrams. The TS configuration is used where the sensor
enclosure ambient temperature is expected to exceed 65 °C, allowing the electronics to
be mounted separately in a cooler place.
Additional product description, specifications, outline drawings and explanation of part
numbers can be found in the product brochure at the end of this section.
Important Issues for Accurate Flow Measurements
`Duct Velocity Profile Correction:
- Does velocity profile change with dampers, fans, valves, etc. where the
sensor is measuring?
`Sensor Insertion Location:
- What part of the profile is to be measured?
`Duct Area:

Kurz Instruments Inc.
Series 454FT User’s Guide DCN: 360197-1.2Rev. A2
- Sensor blockage, reducing the effective area.
`Flow & Temperature Output Range:
- What scale do you want the 4-20 mA output set to?
`Field Calibration:
- From a field calibration, either velocity dependent correction factors or a
simple gain correction can be entered to account for the duct flow profile.
`Sensor Pitch or Orientation to the Flow:
- Is the flow arrow pointing in the same direction as the flow?
`Medium to be Measured:
- Was the unit calibrated in the medium to be measured?
- Is the medium composition highly variable?
- Does the medium change phase?
- Can material build up on the sensor?
- Are there large temperature variations?
• Kickout Values for the NE-43 Alarms (< 3.6 mA and > 21 mA)?
- What high/low values indicate a meter malfunction or a high/low flow
trip point.?
- What high/low values indicate normal operating conditions?
Answers to many of these questions can be found in this manual or its appendices.
Kurz customer service may also be contacted for assistance (831-646-5911 or FAX
831-646-1033). This user manual covers installation, configuration, operation,
calibration and maintenance information. Many of the terms and abbreviations used in
thismanual may be found in the Glossary.For the Purge version, also see 360207.
The next section isthe product brochure followed by aSetup guide.hrefersto the manual The intended audience forsecti ons needed to setup y ourThe intended audithismanual are process engineers and instrumentation technicians who are measuring
gas flow.A more comprehensive version of the setup guide is DCN 360206.

SERIES
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KEY FEATURES
¤
Easy-to-use menu for display and set-up with HELP
screens.
¤
Two-line 16 character,back-lit LCD with twenty
button keypad (optional).
¤
User selectable scrolling display.
¤
Adjustable LCD/Keypad orientation allowing ease
of reading the display for horizontal or vertical
installations.
¤
Twenty-four hour clock/calendar;Year 2000
compliance (four digit year).
¤
Two optically isolated loop-powered 4-20 mA
outputs,one for mass flow rate, one for process
temperature (optional).
¤
4-20 mA outputs meet NAMUR NE43
recommendations.
¤
Two optically isolated solid-state alarm/relays
(optional).
¤
Pulsed output for use as a remote flow totalizer
(optional).
¤
User selected English or Metric units (SFPM,SCFM,
SCFH,PPM,PPH,˚F; SMPS, SLPM, SCMH,KGM,
KGH,˚C).
¤
Multi-Point calibration correction factors for Flow
andTemperature.
¤
User-entered METER ID Number.
¤
User-entered flow area.
¤
Programmable sensor out-of-tolerance indication
and alarm functions.
¤
User may change STP reference condition.
¤
User-selectable digital filtering for each METER.
¤
Built-in flow totalizers and elapsed time.
¤
UserAccess Code.
¤
Selectable RS-232C or RS-485 Serial port for
terminal operation.
¤
ModbusASCII or RTU communications
¤
NEMA 4X/7 dual chamber epoxy painted
electronics enclosure.
¤
CE Compliance meeting the European Community
requirements for EMI emissions and immunity.
¤
Configuration upload/download software using
a PC.
¤
Velocity/Temperature/Mapping (VTM) for wide
ranging velocity and temperature.
¤
Input power options of 115VAC or 230VAC 50/60
Hz or 24VDC.
¤
Flash EEPROM program memory for user firmware
upgrades.
¤
Remote Electronics Enclosure option.
¤
Velocity range of 0-18,000 SFPM.
DESCRIPTION
The Series 454FT Insertion
Mass FlowTransmitters raise
the standard for mass flow
measurements of air and
industrial gases.The 454FT
incorporates the rugged Kurz
all-welded thermal sensor
having a miniature, powerful
“in-the-head” microprocessor
having a large, lighted LCD/
Keypad, with easy-to-use set-
up and configuration menus.
The 454FT uses only two all-
welded RTD sensors to pro-
vide fast measurements of the
velocity and process tempera-
ture.The optional tempera-
ture ratings are 200˚C and
500˚C.The LCD/Keypad can
be rotated in 90˚ increments
to provide a convenient orien-
tation for all applications.
English or Metric Units are
selected by the user.The
454FT includes up to two
optically isolated 4-20 mA
outputs and alarms, a RS-232
port for use with a PC to
download, upload, record and
“ECHO” the display.A flash
EEPROM Program Memory
allows the user to upgrade the
firmware in the field.A RS
485/Modbus local area net-
work protocol is optional.
The 454FT includes the most
advanced temperature com-
pensation, microprocessor
technology and the highest
repeatability, accuracy, and
reliability available.The 454FT
has CE andY2K Compliance
and hazardous gas safety
approvals.Kurz has world-
class calibration facilities, and
is ISO 9001 certified.
SERIES 454FT INSERTION MASS FLOW TRANSMITTERS
¤
ProcessTemperature Rating of –40˚C to 200˚C
(MT) or –40˚C to +500˚C (HHT).
¤
Electronics operating temperature range of –25˚C
to +65˚C,non-condensing,and –40˚C to +65˚C
without the LCD/Keypad option.
¤
Process Pressure Rating of 300 PSIG.
¤
Alloy C276 all-welded sensor construction.
¤
Fastest response to temperature and velocity
changes.
¤
Attitude insensitive.
¤
Sensor lead length independent circuitry.
¤
Non-Incendive,Explosion-Proof and Flameproof
SafetyApprovals.
¤
All components pass an extensive burn-in test for
high reliability.
¤
Optional Modbus local area network with a read-
only control set (Trademark of Square D Company).
¤
Conformal coatings on all P.C. boards.
¤
The +24VDC version with the 4-20 mA option
may be used with the Series 155 Mass Flow
Computers to provide flow and temperature read-
ings and exceptional flexibility.
APPLICATIONS
¤
Industrial and process gas mass flows
¤
Combustion air flow measurements
¤
EPA Flow Monitors
¤
Flare gas metering
¤
Aeration air flow and digester off-gas flow
¤
Landfill vapor recovery
¤
Incinerator stack mass flow
¤
Solvent recovery system mass flow
¤
VOC mass flow
¤
Cement plants
¤
Coal-fired boiler combustion air
¤
Compressed air
¤
Natural gas
¤
Semi-conductor processing gas metering
¤
O.E.M. applications
OUR MISSION
To manufacture and market
the best thermal mass flow meters
available and to support our
customers in their efforts to
improve their business.
PAGE 2
Kurz Instruments, Inc. ■2411 Garden Road, Monterey, CA 93940 ■Tel [phone]
Fax [phone] ■www.kurz-instruments.com ■e-mail: [email protected]

PAGE 3
PRINCIPLE OF OPERATION
The Series 454FT uses the well-recognized Kurz thermal convection
mass flow measurement method by detecting the heat transfer
from the heated RTD sensor (Rp) referenced to the temperature
of the ambient gas stream RTD sensor (Rt).A constant temperature
difference between the heated sensor and the temperature sensor is
maintained by a modifiedWheatstone Bridge circuit in which the heated
sensor is the controlled element.This provides unexcelled speed of
response and the many other advantages of constant temperature ther-
mal anemometry.The microprocessor-based electronics measures the
heat transfer, computes the standard velocity and ambient gas tempera-
ture,and allows the user to configure and set-up the 454FT to fit all
flow requirements.Display screens are easy-to-use and provide all the
flow and temperature and diagnostic information.For a more detailed
description of Kurz technology,please see Document Number 364003,
“Theory andApplication of KurzThermal Convection Mass Flow
Meters”, by contacting the Kurz Factory, or by visiting our web site.
FLOW
ROTATION YAW
+–
FLOW
Rt
Rp
RATE
FLOW
TIME/SEC.
2 VOLTS @ 3000 SFPM
TEMP (˚C)
250
200
150
100
50
002468101214161820
(3000 SFPM)
FLOW
OUTPUT
SIGNAL
(LESS THAN .020 VOLT UPSET)
DEGREES ROTATION/YAW
VELOCITY SIGNAL
-50 -40 -30 -20 -10 0 10 20 30 40 50
ROTATION
YAW
10%
SERIES 454FT INSERTION MASS FLOW TRANSMITTERS
Kurz Instruments, Inc. ■2411 Garden Road, Monterey, CA 93940 ■Tel [phone]
Fax [phone] ■www.kurz-instruments.com ■e-mail: [email protected]
VELOCITY (SFPM)
OUTPUT SIGNAL-mA
0
160
220
280
340
400
460
520
2000 4000 6000 8000 10,000 12,000
Figure 1–Series 454FT
LCD/Keypad with Lid Removed. Figure 2–Fast Dual (FD) Sensor.
CALIBRATION CURVE
Figure 3– The flow calibration
curve is non-linear,having a non-
zero output (live zero) at zero
flow and a nearly constant per-
cent of reading accuracy.Zero is a
valid data point for a Kurz meter.
Figure 4–Shows the response of
a Kurz Fast Dual (FD) MetalClad
™
sensor to a step change in veloci-
ty.Kurz manufactures the fastest
industrial quality sensors available.
Figure 5–Shows a typical
response to a step change in
temperature for a Kurz Fast
Dual (FD) MetalClad
™
sensor.
It is exceptional and allows use
of the sensor for combustion air
flow measurements in boilers that
mix hot and cold air for tempera-
ture control in coal pulverizers,
for example.
Figure 6 – Shows a typical output
response to changes in the incom-
ing velocity direction.Data is
shown for rotation and yaw,as
defined by Figure 7.Note that the
effect is small for angles up to
±20 degrees.This is extremely
important for flow applications
having severe turbulence and a
non-axial velocity direction.
Figure 3– Calibration Curve.
Figure 4–Sensor Flow Response.
Figure 5–SensorTemperature
Response.
Figure 6
– Sensor Measurement Error
Versus Rotation/Yaw Angles.
TIME RESPONSE TO FLOW AND
TEMPERATURE CHANGES
ORIENTATION EFFECTS
Figure 7–Sensor Rotation andYaw
Description.
70
80
90
100
60
50
40
30
20
10
01
TIME/SEC.
VELOCITY %
2345678910

TECHNICAL DESCRIPTION
SENSOR DESIGN
Series 454FT Insertion Mass FlowTransmitters use the
Kurz MetalClad™FD all-weldedAlloy C276 sensor.In
this design,the temperature sensor and velocity
sensor are mounted in separate tubes (or“stings”),
providing exceptional thermal isolation from the sen-
sor support structure and fast response to process
temperature changes.
SENSOR MATERIALS AND CONSTRUCTION
The standard sensor material for all Kurz metal sen-
sors isAlloy C-276.This material is far superior to 316
Stainless Steel in high temperature and corrosive
applications.Kurz offersTitanium Nitride coating for
abrasive,dirty applications,such as in boiler coal pul-
verizers.Kurz exclusively uses Inconel sheathed
mineral-insulated cable (MI cable) and a hermetic sen-
sor seal for temperatures above 200˚C.
PROCESSTEMPERATURE RATING
Kurz offers sensor process temperature ratings of
200˚C and 500˚C.Field data verifies that the lifetime
at 500˚C is at least five years and the lifetime at 200˚C
is many decades.
TRANSMITTER CONFIGURATIONS
Two configurations are available;DirectlyAttached
Electronics Enclosure (TA) and RemotelyAttached
Electronic Enclosure (TS).
PROCESSTEMPERATURE COMPENSATION
The influence of temperature on the thermal proper-
ties of gases requires temperature compensation for
repeatable and accurate measurements.Standard
Temperature Compensation (STC) is used for applica-
tions in which the process temperature is below
125˚C over a moderate velocity range or below 200˚C
over more limited velocity range.If the process tem-
perature and gas velocity vary widely,Velocity/
Temperature/Mapping (VTM) is recommended.VTM
includes taking velocity calibrations at two or three
process temperatures and using the microprocessor to
calculate the velocity based on the built-in process
temperature measurement.
GAS CALIBRATION
The customer has a choice of a laboratory calibration
or a gas correlation calibration.Air calibrations are
performed in the Kurz Model 400D NIST traceable
wind tunnel.
SENSOR PROTECTION
The 454FT circuitry includes circuitry to prevent an
over-temperature condition caused by a sensor, wiring
or component failure.Our sensors will not overheat at
zero flow,unlike most competitive devices because of
our constant temperature sensor control method and
the power limiting design.
SENSOR ELECTRONICS
The Series 454FT has several innovations which
improve performance, reduce cost and provide extra-
ordinary flexibility.A new constant temperature bridge
circuit includes an efficient switching power supply and
allows the microprocessor to calculate the process gas
temperature directly using the temperature compensa-
tion sensor.The bridge PCB has an EEPROM loaded
with the PCB serial number, calibration coefficients,
and component values which insures the safety of the
data.The sensor electronics includes a sensor lead
resistance compensation circuit which is extremely
important for long sensor wires,rapid gas temperature
changes and large temperature gradients between the
sensor and the ambient air.
CONFORMAL COATED CIRCUIT BOARDS
All PC boards are generously coated to provide pro-
tection against damage and moisture condensation.
MICROPROCESSOR
An 18 MHz Z180 microprocessor is used.
ANALOG-TO-DIGITAL CONVERTER
A serial 16-bitADC provides excellent resolution and
noise rejection.To minimize noise the user can select
theADC sample rate for 50 Hz or 60 Hz to provide
the best noise rejection.
FIRMWARE
The Display,Executive and Programming menus are
very easy-to-use and are largely self-explanatory.The
functions and instructions for the Series 454FT are
nearly the same as those used for the Series 155 Mass
Flow Computers,which are widely accepted.The flow
and temperature data may be scrolled so it can be
seen through the window in the cover.The user may
press“D” and see the flow and temperature data,as
well as the raw flow data.Pressing“H” holds the dis-
play screen (but not the readings).A user access code
is required for programming, seeing data and entering
configuration and other user data.
SERIES 454FT INSERTION MASS FLOW TRANSMITTERS
SPECIFICATIONS
ProcessVelocity Range:
0-18,000 SFPM
ProcessTemperature Rating:
MT:–40˚C to 200˚C
HHT:–40˚C to 500˚C
Process Pressure Rating:
300 PSIG
Sensor Material:
Alloy C-276 Stings with
Carpenter 20 Cb-3 sensor
base;optionalTitanium Nitride
Coating (350 C max).
Sensor Support Material:
316L Stainless Steel,
Alloy C-276.
Repeatability: 0.25%
VelocityTime Constant:
1 second for velocity changes
at 6000 SFPM at a constant
temperature and 1 second for
temperature changes at a con-
stant velocity of 6000 SFPM.
ProcessTemperatureTime
Constant: 8 seconds at a
velocity of 6000 SFPM.
Velocity Accuracy:
See Feature 8 for overall
accuracy including the effects
of process temperature.
Temperature Accuracy:
±(1/2% of reading +1˚C) for
velocities above 100 SPFM.
Power: +24VDC ±10%,115/230
VAC ±10% 50/60 Hz;
15 watts max.
EnclosureTemperature
Rating: -25˚C to +65˚C
with LCD/Keypad option;
-40˚C to +65˚C without
LCD/Keypad option.
Enclosure: Dual-Chamber,
Epoxy-Painted aluminum,
NEMA 4X/7 with glass win-
dow for display option.
Solid-State Relays:
Optically isolated,.8 ampere,
24VAC/VDC maximum
Analog Outputs (4-20 mA):
Optically isolated,user loop-
powered,12 bit resolution
and accuracy,maximum loop-
resistance is 500Ωat 18VDC,
800Ωat 24VDC,1400Ωat
36VDC;meets NAMUR NE43
recommendations.
Continued on facing page
Kurz Instruments, Inc. ■2411 Garden Road, Monterey, CA 93940 ■Tel [phone]
Fax [phone] ■www.kurz-instruments.com ■e-mail: [email protected]
PAGE 4

INSERTION MASS FLOW TRANSMITTERS
SPECIFICATIONS Cont’d.
Meter FilterTime Constant:
Selectable 0 to 600 seconds.
Safety Approvals:
Non-Incendive (NI):Class I,
Div. 2,GPS. ABCD,T5 DC-
Powered,T4AC-Powered;
Ex nA II, T5 DC-Powered,
T4AC-Powered;CSA.
Explosion-Proof (XP):Class I,
Div. 1,GPS. ABCD,T3C;
Ex d IIC,T3;Class II, Div.1,
Groups EFG;CSA.
Flameproof (FP):EEx d IIB+H2,
T3;CENELEC.The process
approval temperature range is
–20˚C to +60˚C.
EMI Approvals:
CE Compliance:light industrial
(EN50081-1) for emissions,
heavy industrial (EN 50082-2)
for immunity and (EN 61000-
4-5) for surges.
Serial Port Baud Rate:
User selectable:1200, 2400,
4800,9600, 14,400,19,200.
Digital Outputs:
RS-232 Port for Upload,
Download,Record,Echo using
user’s PC;RS-485 communi-
cation port, with Modbus
ASCII or RTU Mode.
LCD: Back-lit two-line alpha-
numeric with 16 characters
per line.
LCD Update:
Every two seconds.
Keypad: 20-button membrane
mounted inside enclosure.
LCD/Keypad Orientation:
Adjustable in 90 increments
to accommodate user
viewing angle.
Memory: EEPROM for all impor-
tant data,with automatic
sensor identification;Flash
EEPROM for Program
Memory.
NetWeight/ShippingWeight:
DCVersion: 4lbs/5lbs;
ACVersion:8lbs/10lbs,
add 4lbs/5lbs for remote
option (TS).
SELECTABLE STP CONDITIONS
The mass flow calibration data is referenced to
the Kurz laboratory standard of 77˚ F/14.69 PSIA
(25˚ C/760 mmHg).The user may change the STP
conditions to suit his requirement.
BAUD RATE SELECTION
The user may set the RS 232/RS 485 baud rate to
1200,2400,4800,9600, 14400 or 19200.
4-20 mA OUTPUTS
These loop-powered outputs are optically isolated,and
include the NAMUR NE43 recommendation regarding
fault detection.The fault conditions are set at the Kurz
Factory, but may be set by the user.The user may easily
calibrate the 4-20 mA outputs by entering the Output
Calibration menu,measuring the output and adjusting
it using the LCD/Keypad.
NAMUR NE43 COMPLIANCE
Kurz meets the NAMUR NE43 recommendation for
the 4-20 mA outputs,under a fault defined by the sen-
sor Kick-Out menu.A low flow or temperature condi-
tion will be transmitted as a 3.6 mA or less signal;a
high flow or high temperature condition will be trans-
mitted as a 21.0 mA or greater signal.This feature also
frees up the alarm/relays so that the user can set-up
the flow and temperature alarms for other needs.
ALARM/RELAYS/PULSED
TOTALIZER OUTPUT
The customer may order 0 or 2 solid-state optically
isolated relays. If no relays are ordered,the alarm func-
tions are displayed on the LCD. Both relays may be
used for alarms (LO,HI and HOL) or for the Sensor
Kick-Out feature;or one relay may be used for an
alarm function and one may be used as a pulsed output
for use as a remote flow totalizer, or both relays may
be used as pulsed outputs.
SERIES 454FT
TECHNICAL DESCRIPTION Cont’d.
HELP SCREENS
By pressing“HH” the user can obtain important infor-
mation on the use of the Series 454FT, including the
firmware version,Kurz telephone and fax numbers and
the web site address,etc.
FLASH EEPROM PROGRAM MEMORY
The program may be updated in the field by the user
using the RS-232 port.This new feature will allow our
customers to upgrade to the latest firmware.
SELF-DIAGNOSTICS
The 454FT performs an extensive check-out upon
power-up,and continuously monitors the sensor
inputs/outputs and verifies the integrity of the sensor
wiring and the measurements.The Sensor Kick-Out
feature is used to set the fault limits.
PROGRAMMABLE CORRECTION FACTORS
A multi-pointVariable Correction Factor (VCF) may be
used to correct the flow calibration data to meet in-
situ flow tests over the entire velocity range such as
done for EPA Stack Flow Monitors.IfVCF is not used,
a Sensor Blockage Correction Factor (SBCF) can be
used to correct for the area reduction caused by the
sensor support.The user enters the area of the flow
passage and the sensor center line distance from the
inside of the flow passage and the Series 454FT auto-
matically calculates the SBCF.
METER FILTERTIME CONSTANT
A digital filter time constant may be set for each
METER which affects the display readings and the 4-20
mA outputs.The time constant maybe set from 0 to
600 seconds.
COMPATIBILITYWITH SERIES 155 MASS
FLOW COMPUTERS
A“Blind” Series 454FT (ordered with the two 4-20
mA Outputs and the +24VDC power supply;but with-
out the LCD/Keypad andAlarm/Relay/Pulsed Outputs)
is fully compatible with the inputs and features of the
Series 155 Mass Flow Computers.Thus, the user may
obtain the advantages of flow and temperature mea-
surements,Velocity/Temperature/Mapping (VTM),with
a rugged,remote, easy-to-use electronics enclosure
with LCD/Keypad,power supply,and all of the other
features of the Series 155 Mass Flow Computer.
(Please see the Series 155 brochure).
Kurz Instruments, Inc. ■2411 Garden Road, Monterey, CA 93940 ■Tel [phone]
Fax [phone] ■www.kurz-instruments.com ■e-mail: [email protected]
PAGE 5

SAFETY APPROVAL
Identifier Description
NI Non-Incendive (Class I,Div.2, GroupsA,B, C,D and Ex nA II)
XP Explosion-Proof (Class I,Div.1, GroupsA, B, C,D and Ex d IIC)
FP Flameproof (EEx d IIB+H2)
Kurz Instruments, Inc. ■2411 Garden Road, Monterey, CA 93940 ■Tel [phone]
Fax [phone] ■www.kurz-instruments.com ■e-mail: [email protected]
SENSORTYPE
Identifier Description
FD Fast Dual MetalClad™Velocity andTemperature Sensor.
ORDERING INFORMATION
The table below lists the major features of the Series 454FT Insertion
Mass FlowTransmitters and their Parent Numbers:
FIRST DIGIT OF FEATURE 1: SENSOR TYPE
Option Description
1 FD Sensor
PROCESSTEMPERATURE RATING
Identifier Description Range
MT MediumTemperature -40°F to 392°F (-40°C to 200°C)
HHT Very HighTemperature -40°F to 932°F (-40°C to 500°C)
SECOND DIGIT OF FEATURE 2:
SENSOR SUPPORT LENGTH L
Option Support Length L Option Support Length L
0 All 18" 5 3⁄4", 1" 36"
11⁄2" 3" (MT Only) 6 1" 48"
21⁄2",3⁄4" 6" (MT Only) 7 1" 60"
3 All 12" 8 All 30"
4 All 24" 9 All Consult Kurz
SERIES 454FT INSERTION MASS FLOW TRANSMITTERS
SUMMARY OF FEATURES (Continued)
Feature Description
6 GasVelocity Calibration Data Range
7 Specialty GasVelocity Calibration
8 ProcessTemperature Compensation
9 4-20 mA Outputs/LCD/Keypad
10 Alarms, Relays,Pulsed Outputs/Terminal Communication and Data Ports
11 SafetyApproval
SECOND DIGIT OF FEATURE 1: SENSOR MATERIAL
Option Description
3 Alloy C276 Sensor Stings
7 Titanium Nitride Sensor Coating on Option 3 material
NOMENCLATURE:
SERIES 454FT SELECTIONTABLE
Sensor Process
Model Parent Support Sensor Temp. Elect. Safety
Number Number Dia. Type Rating Config. Approvals
454FT-08-MT 756001 1⁄2" FD MT TA,TS NI, XP,FP
454FT-08-HHT 756002 1⁄2" FD HHT TA,TS NI
454FT-12-MT 756003 3⁄4" FD MT TA,TS NI, XP,FP
454FT-12-HHT 756004 3⁄4" FD HHT TA,TS NI
454FT-16-MT 756005 1" FD MT TA,TS NI,XP,FP
454FT-16-HHT 756006 1" FD HHT TA,TS NI
ELECTRONICS CONFIGURATION
Identifier Description
TA Electronics Enclosure directly attached to the sensor support.
TS Electronics Enclosure remotely attached to the sensor support.
FIRST DIGIT OF FEATURE 2: SENSOR SUPPORT MATERIAL
Option Description Option Description
2 316L Stainless Steel 3 Alloy C276
FEATURE 3: OPTIONAL FLANGE CONNECTION
Option Description Option Description
00 No flange 99 Special, Consult Kurz
`01 1⁄2" Class 150 02 1⁄2" Class 300
11 3⁄4", Class 150 12 3⁄4", Class 300
21 1",Class 150 22 1",Class 300
25 11⁄4",Class 150 26 11⁄4",Class 300
31 11⁄2",Class 150 32 11⁄2",Class 300
41 2" Class 150 42 2" Class 300
Note: Flange material must match sensor support material (Feature 2).Flanges areANSI BI6.5.
FEATURE 4: OPTIONAL FLANGE U DIMENSION
Directions
Enter U dimension length to the nearest hundredth of an inch (0.01).Enter four digits,
U minimum = 4",Enter 0000 if a flange is not used. Example:U = 5.20";Enter 0520
SUMMARY OF FEATURES
Feature Description
1 SensorType/Sensor Material
2 Sensor Support Material/Length
3 Optional Flange Connection Size and Rating
4 Optional Flange U Dimension
5 Electronics Enclosure Configuration/Input Power
FIRST DIGIT OF FEATURE 5:
ELECTRONICS ENCLOSURE CONFIGURATION
Option Description
1 Electronics Enclosure directly attached to sensor support (TA).
2 Electronics Enclosure remotely attached to sensor support (TS).
SECOND DIGIT OF FEATURE 5: INPUT POWER
Option Description Option Description
1 115VAC, 50/60 Hz 3 +24VDC
2 230VAC, 50/60 Hz 9 Special
PART NUMBER GENERATION PROCEDURE
With the selected Parent Number,specify the entire Part Number by selecting an Option
for each Feature as shown in the example below:
756004
Parent No. F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11
052013 30 11 11 14 01 28 21 11 10
RECOMMENDED MAXIMUM GASVELOCITY
GasType Gas Velocity SFPM SMPS
Air,Argon,Carbon Dioxide,Dry Chlorine,Nitrogen,Oxygen 18,000 90
Butane, Ethane, Ethylene, Methane, Natural Gas, Propane 15,000 75
Digester Gas,Dry Ammonia
Helium 7,000 35
Hydrogen 4,000 20
PAGE 6

SERIES 454FT INSERTION MASS FLOW TRANSMITTERS
FEATURE 7: SPECIALTY GAS CALIBRATION (Note 1)
Laboratory Correlation
Calibration GasType Calibration
01 Air —
— Dry Ammonia 56
08 Argon 58
10 Butane (Simulated with Propane) 60
14 Carbon Dioxide 64
— Dry Chlorine 68
20 Ethane 70
22 Ethylene 72
26 Helium 76
28 Hydrogen 78
32 Methane 82
34 Natural Gas (Simulated with Methane) 84
35 “Digester Gas” 50% Ch4, 50% CO285
37 “Digester Gas” 70% Ch4, 30% CO287
40 Nitrogen 90
44 Oxygen 94
46 Propane 96
99 Special Gas calibration (including mixed gases)—Specify
Note 1: All calibrations are NIST traceable and taken at room pressure.This proce-
dure is valid because the pressure effect is small up to 150 PSIG.The customer is
responsible for cleaning hydrocarbons from oxygen mass flow elements.The mass
flow reference standard is 77˚F, 14.69 PSIA (25˚C, 760 mmHg). Data for velocities
above 12,000 SFPM is obtained using the Kurz correlation method. Add [5% reading
+ 30 SFPM] to the accuracy specification when using a gas correlation calibration.
FEATURE 6: GASVELOCITY CALIBRATION DATA RANGE
English Metric
Option SFPM Option SMPS
02 300 52 1.5
04 600 54 3
06 1,000 56 5
08 2,000 58 10
10 3,000 60 15
12 4,000 62 20
14 6,000 64 30
16 9,000 66 40
18 12,000 68 60
20 15,000 70 75
22 18,000 72 90
SECOND DIGIT OF FEATURE 9:
LCD/KEYPAD
Option Description
0 No LCD/Keypad and enclosure lid without window.
1 Includes back-lit LCD with 20-button keypad and
enclosure lid with window.
FIRST DIGIT OF FEATURE 9: 4-20 mA OUTPUTS
Option Description
0 No 4-20 mA Outputs.
2 Two 4-20 mA outputs,loop-powered,optically isolated.
FEATURE 8: PROCESSTEMPERATURE COMPENSATION
(Continued)
Option Description
28 Velocity/Temperature/Mapping (VTM) with three calibration
data sets over process temperature range of 0˚C up to 500˚C.
Accuracy:±(3% reading + 30 SFPM),Specify Process
Temperature Range,Air and N2only.
FEATURE 8: PROCESSTEMPERATURE COMPENSATION
Option Description
01 StandardTemperature Compensation (STC) over process
temperature range of -40°C to +125°C. Accuracy:
± [(1% + .025%/°C) reading +(20 SFPM + .25 SFPM/°C)]
Above or below 25°C, all gases.
13 StandardTemperature Compensation (STC) over process
temperature range of 0°C to 200°C. Accuracy:
± [(2% + .025%/°C) reading +(20 SFPM + .25 SFPM/°C)]
Above or below 100°C; Air and N2only.
23 Velocity/Temperature/Mapping (VTM) with two calibration data
sets over process temperature range of 0˚C up to 200˚C.
Accuracy:±(2% reading + 20 SFPM),Specify Process
Temperature Range,Air and N2only.
FEATURE 11: SAFETY APPROVAL (Note 1)
Option Description
12 Non-Incendive (NI):Class I,Div.2,GPS.ABCD,T5 DC-
Powered,T4AC-Powered;Ex nA II,T5 DC-Powered,
T4AC-Powered;CSA
22 Explosion-Proof (XP):Class I, Div.1, GPS.ABCD,T3C; Ex d IIC,
T3;Class II,Div.1,Groups EFG;CSA
23 Flameproof (FP):EEx d IIB+H2,T3;CENELEC
Note 1: Options 22,and 23 are not available for HHT Models.
FIRST DIGIT OF FEATURE 10:
ALARMS, RELAYS, PULSED OUTPUTS
Option Description
0 No Solid-State Relay or Pulsed outputs,alarm functions dis-
played on LCD.
1 Two Optically Isolated Solid-StateAlarm Relays
2 Two Optically Isolated Solid-State pulsed outputs for remote
flow totalizers.
3 One Optically Isolated Solid-StateAlarm Relay and one pulsed
output for a remote flow totalizer.
SECOND DIGIT OF FEATURE 10:
TERMINAL COMMUNICATION AND DATA PORTS
Option Description
1 RS-232C or RS-485 (Jumper Selected) serial port;echoes the
display and permits remote keypad entry for use with a PC
running a terminal emulator program,supports configuration
Upload/Download.
2 Option 1 plus a read-only command set for all METERS,
including the log (L) or summary command.
3 Option 1 with RS-485 Multi-Point ModbusASCII or RTU
protocol with read-only control.
ORDERING INFORMATION
Using the Single-Point Insertion Mass FlowTransmitter Part No./Order Sheet:
AComplete the application information section.
BEnter the complete Series 454FT Part Number.
CEnter the Series 454FT mounting hardware and accessory Part Nos.
DContact the Kurz Representative or the Kurz Factory to place the order
or to obtain additional information.
Kurz Instruments, Inc. ■2411 Garden Road, Monterey, CA 93940 ■Tel [phone]
Fax [phone] ■www.kurz-instruments.com ■e-mail: [email protected]
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