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Multi-Trak™ Model 670S Multi-Point Mass Flow Meter System INSTRUCTION MANUAL IM-Multipoint Revision: B, April 2015 CORPORATE HEADQUARTERS 5 Harris Court, Building L Monterey, CA 93940 Phone (831) 373-0200 (800) 866-0200 Fax (831) 373-4402 www.sierrainstruments.com EUROPE HEADQUARTERS Bijlmansweid 2 1934RE Egmond aan den Hoef The Netherlands Phone +31 72 5071400 Fax +31 72 5071401 ASIA HEADQUARTERS...
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Sierra Instruments, Inc. is not liable for any damage or personal injury, whatsoever, resulting from the use of Sierra Instruments standard mass flow meters or controllers for oxygen gas. You are responsible for determining if this mass flow meter or controller is appropriate for your oxygen application.
Sierra Instruments’ Instruction Manual Multi-Trak™ Model 670S Table of Contents CHAPTER 1: INTRODUCTION .......................4 Welcome to the Multi-Trak™ ....................4 Safety Information ........................5 Receipt Of Your Instrument ......................5 Definitions Used In This Manual ...................6 CHAPTER 2: INTRODUCTION TO THE MULTIPOINT ..............7 CHAPTER 3: INSTALLATION ......................8...
CHAPTER 1: INTRODUCTION Welcome to the Multi-Trak™ Sierra's Multi-Trak™ Model 670S is an advanced state-of-the-art instrument for measuring mass flow rates in very large ducts or stacks that have non-uniform velocity profiles, high turn-down requirements, dirty gas streams, wide temperature ranges and fast velocity and temperature changes.
Sierra Instruments’ Instruction Manual Multi-Trak™ Model 670S SAFETY INFORMATION Caution and warning statements are used throughout this manual to draw your attention to important information. Warning! Caution! This statement appears with information This statement appears with information that is important to protect people and that is important for protecting your equipment from damage.
FFS = Factory full scale of the 640S meter UFS = User full scale of the 640S meter HMI = Human machine interface Note: It is recommended to you read: “Sierra Steel-Mass™ Model 640S Insertion Mass Flow Meter Instruction Manual.”...
For example, if one unit is turned off the average is divided by three. Each unit and total average can have a multiplication factor (the default is 1.00): Flow1 Flow2 Flow3 Flow4 Average Xtot Figure 1: Sierra Instruments’ Multi-Trak™ Demo...
Sierra Instruments’ Instruction Manual Multi-Trak™ Model 670S CHAPTER 3: INSTALLATION Wiring: The requires 24VDC approximately 2A. Multi-Trak™ 24VDC in Output 4-20mA 24VDC out and Modbus A and B Figure 2: Wiring Ports on the HMI All three connectors are different; they are keyed differently to prevent mistakes.
Sierra Instruments’ Instruction Manual Multi-Trak™ Model 670S Installation Guide DC Power Wiring Individual Model 640S Meters The DC power wire size must be 18 to 19 AWG with the wire stripped 1/4 inch (6 mm). Connect to the terminals marked (1) PWR+ and PWR(2)– on the terminal block. Torque all connections to 4.43 to 5.31 in-lbs (0.5 to 0.6 Nm).
Sierra Instruments’ Instruction Manual Multi-Trak™ Model 670S Installation: Daisy Chaining the Units Together Daisy chain the cable with the 4 x 640S meters as shown in the picture below and tighten the cable glands: Figure 6: Daisy Chaining of 640S Units Make sure that the last 640S meter (#4) has a terminator resistor between the yellow and green wire.
Sierra Instruments’ Instruction Manual Multi-Trak™ Model 670S Installation: Installing into Duct or pipe Installation Depth of the 640S in the Duct If you don’t know the flow profile or you are not familiar on how to determine the flow profile, there is a basic rule on how to set the depth of the 640S meters in the duct.
Sierra Instruments’ Instruction Manual Multi-Trak™ Model 670S CHAPTER 4: SETTING UP THE MENU Follow these screen shots tp set up the Multi-Trak™ After power up the HMI initialize the system, this will take about 12 seconds. No action required. After power up, the MultiPoint Menu will appear. Begin setup of the Multi-Trak™.
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Sierra Instruments’ Instruction Manual Multi-Trak™ Model 670S By pushing the “alarm” button in the settings menu the user can setup the alarm limits. If one of the 640S meters is out of the specified limits an alarm is enabled. The user can see a LOW or HIGH alarm.
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Sierra Instruments’ Instruction Manual Multi-Trak™ Model 670S By pushing the “output” button in the settings menu the user can setup the 4-20mA output (the grand-average output). The output can be forced to 4 or 20 ma for testing by pressing 4 or 20 mA below Force.
NOTE: Entering a k-factor adjusts the meters output signal without affecting the factory calibration curve. Use the k-factor calibration offset for additional flow profile compensation (the factory includes an initial flow profile correction in the calibration curve of the unit). If in doubt, read the manual “Sierra Series 640S Flow Meter”.
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NOTE: User Full Scale Flow Rate may be Field-configured from 50% to 100% of the factory full scale setting (factory full scale is normally set to 125% of the user-specified maximum flow rate). This adjustment can be made for each flow range. If in doubt read the manual “Sierra Series 640 Flow Meter”.
If the problem persists, Sierra Instruments is eager to help you. You may contact us at the following Technical Support Center. It may also help to call your Sierra Instruments Sales Agent, who is also well trained in the operation of the product.
APPENDIX A: WARRANTY POLICY LIMITED WARRANTY POLICY- REGISTER ONLINE All Sierra products are warranted to be free from defects in material and workmanship and will be repaired or replaced at no charge to Buyer, provided return or rejection of product is made within a reasonable period but no longer than one (1) year for calibration and non-calibration defects, from date of delivery.
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