Regd.off: # Venkateshwara Nagar Colony Meerpet Moulali Hyderabad A.P.India Tel: / /

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2 Regd.off: # Venkateshwara Nagar Colony Meerpet Moulali Hyderabad A.P.India Tel: / / meters_mas@yahoo.com

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4 Economical OEM Digital Mass Flow Controller Features Industry best off-the-shelf delivery Accuracy: +/- 1.5% full scale for common gases (Air, Ar, CO 2, CO, CH 4, He, H 2, O 2, N 2 ) Repeatability: +/- 0.25% full scale All the performance features of a digital mass flow controller at an OEM price Control gas mass flow rates to 50 slpm (nlpm) Advanced 316L SS platinum sensor technology and patented LFE provide excellent linear performance Available in both aluminum and 316 stainless steel flow bodies with Viton elastomers Local display and digital setpoint control with optional analog setpoint/output signals RS-232 interfaces easily with PLC or workstation (user software and communication cables supplied) RS-485 (addressable) Dual I/O DB9 comm ports for installation flexibility Field adjustable zero and span Powerful direct-acting control valve minimizes leak-by 300 ms control valve time constant Small footprint facilitates replacement of older MFC's CE Approved Smart-Trak 50 Series S Description ierra Instruments Smart-Trak 50 Series is a digital gas mass flow controller designed to meet the low-cost budgetary requirements of OEM's while maintaining excellent quality and performance. Inspired by the need for accurate and reliable gas mass flow control at an OEM price, the 50 Series delivers by building on the same core sensor, LFE and valve technology found in our award-winning Smart-Trak 100 Series, all backed by industry best off-the-shelf fast product delivery and Sierra's style of personalized customer support. Our 50 Series has a standard accuracy of +/- 1.5% of full scale. The flexible and powerful direct-acting control valve sets it apart from the competition by minimizing leak-by, while offering a 300 ms response time to setpoint changes at +/- 0.25% repeatability. It is our philosophy that core sensor technology must be of the highest quality and performance to make an excellent MFC. In contrast to the many wetted parts of CMOS and MEMS flow sensors, Sierra uses its most advanced 316L stainless steel platinum-wound capillary sensor technology ensuring the very best mass flow control for nearly any clean gas. As a result, the 50 Series shares the same advanced sensor as the flagship Smart-Trak 100 Series, while incorporating a slightly varied valve and laminar flow element design also inspired by the original Smart-Trak. A more efficient manufacturing process, a streamlined design, and our partnership with a very strong supplier base combined to make the 50 Series a reality. Experience our passion for flow with the 50 Series in your next application.

5 Performance Specifications Accuracy +/- 1.5% of full scale including linearity over 32 to 122 F (0 to 50 C) and 5 to 145 psig (0.3 to 10 barg) for common gases: Air, Ar, CO2, CO, CH4, He, H2, O2, N2. +/- 3.0% of full scale for other gases. Repeatability +/- 0.25% of full scale Temperature Coefficient 0.025% of full scale per F (0. 05% of full scale per C ), or better Pressure Coefficient 0.01% of full scale per psi (0.15% of full scale per bar), or better Response Time 300 ms time constant; two seconds (typical) to within +/- 2% of final value including setting time. May be tuned to be faster or slower (consult factory) Operating Specifications Gases All neutral, non-contaminated dry and clean gases compatible with wetted materials aluminum, stainless steel and Viton gas Mass Flow Rates The 50 Series can be calibrated for any gas compatible with viton, aluminum and stainless steel, using any units, to either normal or standard conditions, for flow rates up to 50 slpm air equivalent. Standard calibrations are available for ranges (slpm air equivalent) from 20 sccm/nccm to 50 slpm/nlpm. For measuring or controlling flows below 5 sccm, please consider Micro-Trak Model 101. Above 50 slpm, please consider the Smart-Trak 100 Series Gas Pressure: 145 psig (10 barg) maximum, burst tested to 225 psig (15 barg) Differential Pressure Requirement 15 to 20 psi (1.0 to 1.3 bar) see table Gas and Ambient Temperature 32 F to 122 F (0 to 50 C) Leak Integrity 5 X 10-9 atm cc/sec of helium maximum Power Requirements Meter: 15 or 24 VDC (+/- 10%) 85 ma regulated Controller: 24 VDC (+/-10%), 315 ma, regulated, RS-485 option adds 130 ma Control Range 5 to 100% of full scale flow (20:1) at published accuracy. Automatic shut-off off at 4.9% of full scale Output and Command (Setpoint) Signal RS-232 Optional: Linear 4-20 ma, 500 ohms maximum load resistance. Linear 0-5 VDC RS-485 Addressable (no analog outputs) Zero, span, and setpoint are field adjustable via supplied user software and RS-232 communications cable Display Flow rate, units, full scale, and setpoint. Display may be mounted on the front or back of the unit. Pressure Drop (1/4" standard fittings) Designator slpm Physical Specifications & Dimensions Wetted Material Pressure Drop psid (mbar) (Meter).45 (31.0).45 (31.0).50 (34.5).60 (41.4).80 (55.2) 1.2 (82.8) 3.0 (206.9) Anodized aluminum or 316 stainless steel flow body. 316L stainless steel sensor tubes; Viton O-rings and valve seats. 50 Series - Front View 50 Series - Side View 1/8 Brass compression 1/4 Brass compression Note: Units in inches (mm in parenthesis) 50 Series - Bottom View Minimum Delta psid (mbar) (Controller) 1 (69) 1.5 (103.5) 2 (137.9) 4 (275.9) 7.5 (517.3) 12.5 (862.1) 15 (1034.6)

6 Software Screen Shots User Program Interface Communications Setup 50 Series - No Display Stainless Steel flow body shown 50 Series - With Display Aluminum flow body shown

7 Ordering the 50 Series PARENT NUMBER C50L Mass Flow Controller M50L Mass Flow Meter (Aluminum body only) FLOW BODY MATERIAL AL Aluminum Body (Viton elastomers only) SS 316 Stainless Steel Body (Viton elastomers only) PILOT MODULE DISPLAY NR No Display DD Digital Display (front mounted) DDB Digital Display (back mounted) INLET/OUTLET FITTINGS 1 1/8" SS Compression (Max 5 slpm) 2 1/4" SS Compression 5 1/4" VCO 8 1/4" VCR 10 6 mm Compression 13 1/4" FNPT 21 1/4" Brass Compression 20 1/8" Brass Compression INPUT POWER PV1M 15 VDC for meters PV2 24 VDC for all instruments OUTPUT SIGNAL/SETPOINT V0 RS-232 ( no analog output ) V1 0 to 5 VDC linear output signal and setpoint NOTE: Power supplies are not Included. See accessories to order. V4 4 to 20 ma linear output signal and setpoint V6 RS-485 addressable (no analog output) STANDARD CALIBRATION: FULL SCALE FLOW RANGES ("F" = Standard "N" = Normal) F1 or N1 20 sccm or nccm F2 or N2 200 sccm or nccm F3 or N3 1.0 slpm or nlpm F5 or N5 10 slpm or nlpm F6 or N6 20 slpm or nlpm F7 or N7 50 slpm or nlpm F4 or N slpm or nlpm SCR Consult Factory NOTE: Minimum flow is zero. You must specify full scale. Must fall within listed range. ELECTRICAL CONNECTIONS 50-C9 ( ) Communication cable. Includes cable with D9 mating connector, fly leads. (Length in parenthesis) 50-C9RS323 ( ) Cable with D9 mating connector + D9 serial (Length in parenthesis) CERTIFICATES 5PC 5 Point Calibration Certificate MC Material Certificates--US Mill certs on all wetted parts CC Certificate of Conformance O2C Oxygen Cleaning LT PT Leak Test Certificate Pressure test Certificate your questions or request for quote to Regd.off: # Venkateshwara Nagar Colony Meerpet Moulali Hyderabad A.P.India Tel: / meters_mas@yahoo.com / Note: CE and ISO certificates are available for download from 50 B.1 6/10

8 Model: STTUF: 200 HANDHELD ULTRASONIC FLOWMETER - Advanced Clamp-on Transit-time Technology for Accurate Flow Measurement Features and Benefits: High accuracy, ±1% of velocity NIST Standard Non-intrusive, clamp-on installation, easy and fast. No pipe disturbance, no pressure drop, no moving parts Light weight (1.2lbs/538g for the handset). Compact design Bi-directional, wide range, -52ft/s ~ 52ft/s (-16m/s ~ 16m/s) Wide pipe size range, 3/4" ~ 240" (DN20 ~ DN6,000mm) Suitable for all commonly used pipe materials and liquids. Rechargeable battery for 10 hours of operation. Built-in data logger. Totalizer for net, positive and negative flow Self-explanatory user interface. Very easy to operate. Optional StufManager TM PC software for data download and real-time data display. Signal quality tracking and self-adjusting capabilities automatically match transducer to pipe material Can also be deployed as a remote RTU for long-term flow monitoring application Ideal for flow survey, HVAC, flowmeter verification and all other applications where both accuracy and portability are essential. The STUF-200H Handheld Ultrasonic Flowmeter is one of the most powerful flowmeters available for liquid measurement. The utilization of our proprietary ultrasonic signal processing, transit-time measurement and signal quality tracking technologies allows the flowmeter to measure liquid flow rate from outside of a pipe reliably and accurately. The STUF-200H flowmeter is carefully designed so that it is very compact and easy to use. A user can use one hand to hold as well as to operate the flowmeter main unit. The userinterface is self-explanatory and very easy to follow. Besides, the unique clamp-on fixture design makes the installation very simple and no special skills or tools required. Due to the non-intrusive nature of the clamp-on technique, there is no pressure drop, no moving parts, no leaks and no contamination.

9 Applications: The STUF-200H flowmeter is ideal for flow surveys and closed-pipe applications where non-invasive measurement of liquids is required. Benefited from our advanced digital signal processing technology, the handheld flowmeter works reliably in both clean and opaque liquid flow. Examples of applications include: Water, including hot water, chilled water, city water, sea water, etc. Sewage and drainage water with small particle quantity. Oil, including crude oil, lubricating oil, diesel oil, fuel oil, etc. Chemicals, including alcohol, acids, etc. Solvents. Beverage and food processors. HVAC hot and cool water, water/glycol solutions. Water and waste treatment. Power plants (nuclear power plants, thermal & hydropower plants), heat energy boiler feed water Energy consumption supervision and water conservation management Metallurgy and mining applications (e.g., acid recovery) Marine operation and maintenance Pulp and paper Pipeline leak detection, inspection, tracking and collection Energy measurement and balancing Water distribution network monitoring Handset Clamp Fixture RS232 Cable Carrying Case Xduer Cable Charger S-type Xducer Tape Ruler Specifications: Linearity Better than 1% Repeatability 0.5% Accuracy Response Time Velocity Pipe Size Pipe Material Units Totalizer Liquid Types Liquid Temp Security ±1% of velocity reading or ±10mm/s, whichever is bigger For small pipe ( 1 ), the accuracy may vary seconds, user-configurable -52ft/s ~ +52ft/s (-16m/s ~ +16m/s), bi-directional 3/4" ~ 240" (DN20mm ~ DN6,000mm) All metals, most plastics, lined pipe English (U.S.) or metric Three 7-digit totalizers for totalizing net, positive and negative flows Virtually all liquids (full pipe) 32 F ~ 212 F (0 C ~ 100 C) or 32 F ~ 312 F (0 C ~ 155 C), depending on transducer type Setup Modification Lockout. Access code needed for unlocking

10 Display Digital Interface Transducers Transducer Cord 4x16 letters OCT digital output, can be configured as frequency or pulse output RS-232C: serial communication port with simplified flowmeter protocol StufManager TM (optional): Windows PC software for data download and real-time data acquisition Model M1 for standard, other 3 models for optional Refer to Optional Transducers section for more details Standard 2x15' (2x5m). Extension cable available upon request Power Supply 3 AAA Ni-H built-in batteries. When fully recharged, it will last over 10 hours of operation 100V-240VAC for the charger Data Logger Housing Material Case Size Handset Weight Built-in data logger can store over 2,000 lines of data Aluminum alloy protective case. Suitable for normal and harsh environment 7.9"x3.6"x1.3" (200mmx92mmx32mm) 1.2 lbs (538g) with batteries How does the STUF-200H flowmeter work? The STUF-200H flowmeter is based on transittime measurement principle, as shown in the following figure. A typical transit-time flow measurement system utilizes two transducers (A and B) that function as both ultrasonic transmitter and receiver. The transducers are clamped on the outside of a closed pipe at a specific distance from each other. The flow meter operates by alternately transmitting and receiving a coded burst of sound energy between the two transducers and measuring the transit time that it takes for sound to travel between the two transducers. The difference in the transit time measured is directly and exactly related to the velocity of the liquid in the pipe. The transducers can be mounted in three methods, Z-method, V-method and W-method, depending on pipe size. Z-method is used for large pipe. The two transducers are installed on opposite sides of the pipe. V-method is used for medium size pipe. The two transducers are on the same side, thus, the sound transverses the flow twice. W-method is usually used for small pipe. The sound transverses across the flow four times. Z-method V-method W-method

11 Optional Transducers: Type HS Handheld small size transducer (magnetic with mounting rack and handle) Dim 7.9 x1 x1 (200x25x25mm3), handle length 3.9 (100mm) For pipe size: 3/4 ~ 4 (DN20 ~ DN100mm) Temperature: 32 F ~ 212 F (0 C ~ 100 C) Type S1HT Small size, high temperature transducer Pipe size: 1 ~ 4 (DN25 ~ DN100mm) Temperature: 32 F ~ 312 F (0 C ~ 155 C) Type HM Medium size transducer (magnetic with mounting rack) Dim 11 x1.6 x1.6 (280x40x40mm3) for each Pipe size: 2 ~ 28 (DN50 ~ DN700mm) Temperature: 32 F ~ 212 F (0 C ~ 100 C) Type M1 Standard medium size transducer (magnetic with clamp-on fixture) Dim 2.4 x1.8 x1.8 (60x45x45mm3) Pipe size: 2 ~ 28 (DN50 ~ DN700mm) Temperature: 32 F ~ 212 F (0 C ~ 100 C) Type M1HT Medium size, high temperature transducer Pipe size: 2 ~ 28 (DN50 ~ DN700mm) Temperature: 32 F ~ 312 F (0 C ~ 155 C) Type L1 Large size transducer (magnetic with clamp-on fixture) Dim 3.1 x2.7 x2.2 (80x70x55mm3) Pipe size: 11 ~ 240 (DN300 ~ DN6,000mm) Temperature: 32 F ~ 212 F (0 C ~ 100 C) Model Selection: S T U F H HS Handheld type for pipe 3/4 ~ 4 S1HT High-temp type for pipe 1 ~ 4 HM Mounting-rail type for pipe 2 28 M1 Standard type for pipe 2 28 M1HT High-temp type for pipe 2 ~ 28 L1 Standard type for pipe PC Software 0 No 1 Yes - Y-Cable 0 No 1 Yes Example: STUF-200H-M1-1: handheld ultrasonic flowmeter with standard M1 type transducer plus PC software. Regd.off: # Venkateshwara Nagar Colony Meerpet Moulali Hyderabad A.P.India Tel: / / meters_mas@yahoo.com All rights reserved.