Sierra TM100 User manual

TM100 Thermal Mass Flow Meter
Instruction Manual
Document: S-IM-TM100 | Rev B_PN 110068
www.sierrainstruments.com

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3
Disclaimer TM100
GLOBAL SUPPORT LOCATIONS: WE ARE HERE TO HELP!
For Global Service Centers, go to http://www.sierrainstruments.com/facilities.html
CORPORATE HEADQUARTERS
5 Harris Court, Building L Monterey, CA 93940
Phone [phone] Fax [phone]
[e-mail]
www.sierrainstruments.com
EUROPE HEADQUARTERS
Bijlmansweid 2 1934RE Egmond aan den Hoef
The Netherlands
Phone [phone] Fax [phone]
[e-mail]
ASIA HEADQUARTERS
Second Floor Building 5, Senpu Industrial Park
25 Hangdu Road Hangtou Town
Pu Dong New District, Shanghai, P.R. China
Postal Code 201316
Phone: + 8621 5879 8521 Fax: [phone]
© COPYRIGHT SIERRA INSTRUMENTS 2023
No part of this publication may be copied or distributed, transmitted, transcribed, stored
in a retrieval system, or translated into any human or computer language, in any form or
by any means, electronic, mechanical, manual, or otherwise, or disclosed to third parties
without the express written permission of Sierra Instruments. The information contained
in this manual is subject to change without notice.
TRADEMARKS
TM100™, TM-Cal™, Gas-Mix™, FlowTrak™, TM100-View™, and DigiSense™ are trademarks
of Sierra Instruments, Inc. Other product and company names listed in this manual are
trademarks or trade names of their respective manufacturers.

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Disclaimer
TM100
Warnings and Cautions
General Safety Information
We use caution and warning statements throughout this book to draw your attention to
important information.
Symbol Key
Symbol Symbol Meaning Description
Warning
This statement appears with
information that is important to
protect people and equipment from
damage. Pay very close attention
to all warnings that apply to your
application.
Caution/Note
This statement appears with
information that is important for
protecting your equipment’s
performance. Read and follow
all cautions that apply to your
application.
• Warning! Agency approval for hazardous location installations varies between flow
meter models. Consult the flow meter nameplate for specific flow meter approvals
before any hazardous location installation.
• Warning! Hot tapping must be performed by a trained professional. U.S. regulations
often require a hot tap permit. The manufacturer of the hot tap equipment and/or the
contractor performing the hot tap is responsible for providing proof of such a permit
• Warning! All wiring procedures must be performed with the power O.
• Warning! To avoid potential electric shock, follow National Electric Code safety
practices or your local code when wiring this unit to a power source and to peripheral
devices. Failure to do so could result in injury or death. All AC power connections must
be in accordance with published CE directives.
• Warning! Before attempting any flow meter repair, verify that the line is de-pressurized.
• Warning! Always remove main power before disassembling any part of the
mass flow meter.
WARNING

5
Disclaimer TM100
• Caution! Before making adjustments to the TM100, verify the flow meter is not actively
monitoring or reporting to any master control system. Adjustments to the electronics will cause
direct changes to flow control settings.
• Caution! All flow meter connections, isolation valves and fittings for hot tapping must have the
same or higher pressure rating as the main pipeline.
• Caution! The flow meter electronics and sensor probe have been manufactured and calibrated
to operate as a unit. The flow meter will not operate properly if parts are replaced from another
meter.
• Caution! Printed circuit boards are sensitive to electrostatic discharge. To avoid damaging the
board, follow these precautions to minimize the risk of damage:
- before handling the assembly, discharge your body by touching a grounded, metal object
- handle all cards by their edges unless otherwise required
- when possible, use grounded electrostatic discharge wrist straps when handling
sensitive components
CAUTION

6
Disclaimer
TM100
Receipt of System Components
When receiving a Sierra mass flow meter, carefully check the outside packing carton for damage
incurred in shipment. If the carton is damaged, notify the local carrier and submit a report to the factory
or distributor. Remove the packing slip and check that all ordered components are present. Make
sure any spare parts or accessories are not discarded with the packing material. Do not return any
equipment to the factory without first contacting Sierra Customer Service.
Technical Assistance
If you encounter a problem with your flow meter, review the configuration information for each step
of the installation, operation, and setup procedures. Verify that your settings and adjustments are
consistent with factory recommendations. Installation and troubleshooting information can be found in
the Chapter  (Installation) and Chapter  Maintenance sections of this manual.
If the problem persists after following the troubleshooting procedures outlined in Chapter  of this
manual, contact Sierra Instruments by e-mail (see inside front cover). For urgent phone support you
may call () - between : a.m. and : p.m. PST. In Europe, contact Sierra Instruments
Europe at +  . In the Asia-Pacific region, contact Sierra Instruments Asia at + 
. When contacting Technical Support, make sure to include this information:
• The serial number (marked on the meters label)
• The firmware version (visible on the display at startup)
• The problem you are encountering and any corrective action taken
• Application information (flow range, gas, pressure, temperature and piping configuration)
Using This Manual
This manual provides information needed to install and operate the series TM Thermal Mass Flow
Meter.
Additional Resources
Visit Sierrainstruments.com for additional resources. Note: the most current versions of the TM
documents can be found at https://www.sierrainstruments.com/products/downloads.html.

TM100
7
Introduction
1. Introduction Pages 9-21
a. Quick Start Guide .........................................................................p. 9
b. Menu Trees ..............................................................................p. 11
c. General ................................................................................ p. 19
2. Installation (Mechanical) Pages 21-34
a. Lateral Placement........................................................................p. 23
b. Welding Branch Outlet to Pipe (Insertion) ...................................................p. 25
c. Installation Depth ........................................................................p. 26
d. Orientation..............................................................................p. 28
e. Mounting Instructions ....................................................................p. 27
f. Retractor Installation .......................................................................p. 31
3. Wiring (Electrical) Pages 35-45
a. Wiring Access ...........................................................................p. 35
b. Input Power .............................................................................p. 36
c. Signal Wiring and HART Communication Option .............................................p. 37
d. Pulse/Alarm Wiring (optional feature) .......................................................p. 40
e. RS485 Wiring: Modbus RTU ...............................................................p. 42
f. HART Handheld Wiring....................................................................p. 44
4. Operation (Standard Operation) Pages 46-68
a. Start Up ................................................................................p. 45
b. Programming............................................................................p. 48
c. TM-Cal™ ................................................................................p. 63
d. Gas-Mix TM..............................................................................p. 65
5. Communication Protocols Pages 70-83
a. Modbus RTU (RS485).....................................................................p. 69
b. BACnet ................................................................................ p. 81
c. HART...................................................................................p. 83
Table of Contents

TM100 Table of Contents
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6. Maintenance Pages 85-93
a. Safe Meter Removal from Retractor ........................................................p. 85
b. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 94
7. Appendices Pages 96-107
a. Specifications ...........................................................................p. 99
b. Agency Approvals ......................................................................p. 102
c. Dimensions ............................................................................p. 103
d. Warranty...............................................................................p. 104
e. Returning your meter....................................................................p. 104
8. Definitions Page 110
9. Index Page 113

1. Record inside diameter (ID). Ensure the actual pipe ID
matches the pipe ID shown on the factory calibration
certificate. If IDs do not match, refer to p. 59.
2.
Record up/downstream straight-pipe requirements based on
Pipe ID and meter style (insertion or inline). [refer to p. 23]
3. The Flow Direction Indicator must point in the
direction of flow.
The housing can be rotated for a better view of the meter's
display. Note that the 2 set screws must be loosened before
the housing will turn. [refer to p. 29]
4.
Ensure correct probe depth setting. If using 1 ½" size pipe,
please see note on p. 26.
5.
Open the housing. If needed, the orientation of display can
be rotated in 90° increments for a better view.
[refer to p. 28 for more information]
6. Ensure power wiring [p. 37] and 4-20mA wiring [p. 38
- p. 39] are properly connected. [refer to Wiring section p.
35 for more information]
Verify the output signal wiring based on model type (Pulse/
Alarm or communication protocol) [refer to Wiring section p.
38 for more information]
7.
Apply power to the flow meter.
8. Check the remaining flow meter settings by accessing the meter settings either through the front panel of
the display or by using the TM100-ViewTM Software. Record the settings in the spaces given for items A - F
on the following page.
Use the table below as a guide while using the worksheet on the next page to record your notes.
NOTE! Please read the entire quick-start procedure before beginning installation.
ID OD
FLOW
4X = Inline
10X = Insertion
8X = Inline
15X = Insertion
Pipe ID min.
INDICATOR:
- POINT IN DIRECTION
OF FLOW
- REMOVE TO ROTATE
HOUSING ±90º,
±180º
- REPLACE INDICATOR
WHEN DONE
LOOSEN HOUSING
WITH 2 FRONT SET
SCREWS, RETIGHTEN
WHEN DONE
FLOW
FLOW
PIPE
0.73"
(18.5 mm)
L
C
F1 F2 F3 F4
ACCESS DISPLAY
BY UNSCREWING COVER
REMOVE SCREWS ON
DISPLAY TO ROTATE
DISPLAY ±180°
( - )(+) ( - )(+)(
- )(+)
Power
12-24VDC
4-20mA Pulse
/Alarm
!(
- )(+)
Power
12-24VDC
4-20mA(
-
)
!
4-20mA(+) Common Tx/Rx(
-
)
Tx/Rx(+)
F1 F2 F3 F4
Initializing...
TM100
9
Introduction
Quick Start Guide
9

Item to verify Serial Number: Serial Number: Serial Number: Serial Number:
. What is the Pipe ID? ID = ID = ID = ID =
. Calculate the Upstream/Downstream
straight-pipe requirements
UP =
DN =
UP =
DN =
UP =
DN =
UP =
DN =
.
Is the flow indicator pointed in direction
of flow?
Must the housing be rotated for
easy viewing?
Y / N
Y / N
Y / N
Y / N
Y / N
Y / N
Y / N
Y / N
. Is the probe depth setting correct? Y / N Y / N Y / N Y / N
. Have you rotated the display for easier
viewing? Y / N Y / N Y / N Y / N
. Verify proper power wiring
. Verify proper input/output wiring
After applying power to your meter, check items A - E below by accessing the meter settings either
through the front panel of the meter's display or by using the TM-View™ software tool.
A. Which flow units have been set in
meter? (SCFM, KG/H, etc..)
B. Correct values for reference
temperature and pressure? Y / N Y / N Y / N Y / N
C. Confirm the pipe ID listed above same
as "Pipe_id="
D. Verify mA and mA meter settings mA =
mA =
mA =
mA =
mA =
mA =
mA =
mA =
E. Confirm the correct gas is selected for
your application in the Gas-Mix menu
Before applying power to your meter, use this worksheet to record your notes.
If you are experiencing any problems after completing this procedure, please call the Sierra Instruments Tech Department
at 831-373-0200 to review this information.
Your Notes:
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TM100 Quick Start Guide