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D07-7C / ZM Mass Flow Controller D07-7CM / ZM Mass Flow Meter INSTRUCTION MANUAL Version Dec. 2015...
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SEVENSTAR may not be responsible. If you require any additional information or assistant of Sevenstar D07 series Mass Flow Controller and Mass Flow Meter, please feel free to contact your local Sevenstar Sales Agent or Sevenstar Customer Service at: (8610)- 6436 2925.
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CONTENTS 1. APPLICATION & FEATURES……………. 5.2.1 Start Up ………………………………….. 2. SPECIFICATION………………………….. 5.2.2 Zero Test and Adjustment………………….. 3. STRUCTURE & PRINCIPLE……………... 5.2.3 Gas Supply…………………………………. 3.1 Structure……………………………………. 5.2.4 Shut Off……………………………………. 3.2 Operation Principle………………………… 6. CAUTION…………………………………… 4. INSTALLATION …………………………. 6.1 Medium Forbidden …………………………... 4.1 Receipt and Upacking……………………….
Operating Manual 1. APPLICATION & FEATURES Mass Flow Meter (MFM) accurately measures mass flow rates, Mass Flow Controller (MFC) accurately measures and controls mass flow rates despites gas volume fluctuated due to pressure or temperature changes. Which is widely applied in the fields as: semiconductor and IC fabrication, special materials science, chemical industry, petrolic industry, pharmaceutical industry, environmental protecting and vacuum system researching, etc..
SLM (Standard liter/min) Standard situation: Temperature 273.15K (0 ºC); Air pressure 101325 Pa (760mm Hg) For Sevenstar MFC/MFM, the unit of SCCM is identical to “mL/min, 0 ºC ,1atm”, and the unit of SLM is identical to “L/min, 0 ºC ,1atm”.
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Table 2. Specification of D07-7CM Mass Flow Meter Item D07-7CM Ranges of Flow ( 0~5,10,20,30,50,100,200,300,500) SCCM ( 0~1,2,3,5,10) Accuracy ±1.5 % F.S linearity ±1 % F.S Repeatability ±0.2 %F.S Response-Time 10 sec Differential pressure <0.01 MPa Max pressure 3 MPa Operation temperature 5 ºC ~ 45 ºC 0 V ~ +5.00 V...
3. STRUCTURE & OPERATION PRINCIPLE 3.1 Structure The MFC consists of four basic devices: flow sensor, flow-splitter bypass, control valve and printed circuit board. Printed Circuit Board Electric Connector Locknut Stand Solenoid Valve Zero Adjustment Sensor Inlet-Fittings Outlet-Fittings Base Figure 2. Structure of D07-7C Structure of D07-7CM is basically as same as structure of D07-7Cexcept solenoid valve.
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comparison, any deviation between set point signal and measured signal are chapleted into a control valve adjustment until two signals are identical. D08 series is qualified with power supply, 3-1/2 digital voltage meter, and setting potential meter, inner or out setting switch and others valve turn-on.
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Attention : When Valve controller of MFC is posited on PURGE, it can be used as a MFM. When it is used as a MFM, the flow test voltage can reach beyond +10V, but it is important, if the flow is beyond F.S. (Full Scale), flow will not have linearity relation with test voltage.
INSTALLATION & CONNECTION 4.1 Receipt and Upacking The D07-7C mass flow controller are manfactured under clean room conditions, and has been packed acordingly upon receipt, after receiving the equipment, please carefully check the outer package for any damage incurred during the transportation. Check that the delivery is complete and no parts are missing. Since the D07-7C can be ordered in Several configuration, ensure that the scope of supply is corect.
Figure 5. Dimension of D07-7CM/ZM Attention : The height of 108mm is the height without electric connector of cable. The height will be added 50mm more after added the electric connector. 4.3 Fittings The standard fittings are used Compression Fitting and VCR, there are eight types fittings can be provided: a.
Figure 6 is an example of system construction. “ → ” shows the direction of flow, please pay attention for the flow direction . Front Ferrule Fittings Tube Back Ferrule Figure 6. Compression Fitting Connector Installation Attention : When installing the fitting, you should manually use spanner to wrench it tighten by 1/2 turn pulling up, (imported Compression Fitting should use spanner to be tighten in 1,25 turns) to prove its not blow-by after your installing the front ferrule ,back ferrule and nut.
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MFC could begin operating after it was well connected with professional cable and corresponding Flow Readout Box. 7C-MFC connection is showing in the following figure 7. Attention D07-7C is upgrade of D07-7A/ZM; D07-7C/ZM applied affixed components and international standard D connector. Compared with 7A, they have the same position of connector lead but opposition of serial numbers.
4.5 PC Connections a. Connection through Flow Readout Box with PC or other external signal. (Figure 9) Flow Signal Output A/D In COMPUTER Signal common Signal common Or PLC D/A Out Connection MFC or Signal common Cable +15V Off Valve drive (ATTENTION: No “Valve drive”...
b. PC Directly Connection (Figure 10) 0~+5V Flow Signal Output A/D In Signal common Signal common PC or PLC 0~+5.00 D/A Out Signal common MFC or MFM (ATTENTION: No “Valve drive” and “Set” in MFM ) Auto Valve drive +15V +15V Purge common...
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the ranges of external zero adjustment is narrow, when there is big zero excursion happened, it should be better adjust zero from zero potentiometer of MFC. Linearity potentiometer Zero Span potentiometer Zero potentiometer Figure 11. The Position of Potentiometer of 7C & 7CM Another way to adjust zero is potentiometer adjustment from D08 series Flow Readout box.
5. OPERATING INSTRUCTIONS 5.1 MFC Operation 5.1.1 Start Up (Figure 12) The main operating should perform in the Flow Readout Box. Valve Control Switches and flow setting potentiometer are in the front of Readout Box panel, the flow setting internal or external signal control switches are on the back of panel of Readout Box.
c. If Valve switch is on the position of PURGE, the flow rate will reach up to the maximum value after gas and power supplying, which will have the function of air blasting to the gas circuit. d. If Valve switch is on the position of AUTO and presetting is not zero, open the gas after power supply, the flow rate will have a big overshoot and then rapidly reach to the stable presetting value, this kind of operation should better be avoided.
Please check up zero point of MFM after its warming up (especially for the first time operating), it could have reference in 4.5, without gas supplying, which could adjust zero by zero potentiometer. 5.2.3 Gas Supply After zero movement reaches stable, MFM Could have gas supply. Please pay attention to the flow rate, it should be better operate not beyond full scale range.
6. CAUTION 6.1 Medium Forbidden The gas of using should be purified without dust、 liquid and oil stain. When necessary, it should be added filter to gas circuit to make sure gas purification. If the outlet of MFC connects with liquid sources, which should be added simple directional valve of MFC outlet to avoid the liquid is refluent to the tube to destroy MFC.
6.6 Pressure Resistance Please be caution for the medium operating pressure of MFC, it should not be beyond the rage of specification of inlet and outlet. Especially while operating under the high-pressure situation, the big differential pressure will affect flow fail to shut off or lower adjustment. In case of using heavy flow rate of MFC, please be sure appropriately widen tube and reduce gas internal resistance, if operating differential pressure is lower than the value of request, it might could not be reach to the full scale flow rate value.
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For Example: D07-7C007001LCCNUS D07-7C 007 001L N U S Type Number:D07-7C MFC Gas:H Flow Range Full Scale:1SLM Inlet and Outlet Fittings:Compression Fitting 1/4" Seal Materials: NEOPRENE Mounting Position:Vertical inlet up Customer Special Requirements:For Example:The letters on cover and tag:in English;Differential Pressure:(0.05~0.3) MPa; Customer Special fittings(According to drawing) ;Customer Special Calibration Temperature:40℃.
7. TROUBLESHOOTING Table 3. Failure Handling FAILURE CAUSE TREATMENT There is no gas flow 1.1 Gas flow is shutting off, no gas Check the gas sourcing and make it after turn on. inputting open 1.2 Valve control switch is shutoff Turn the switch to CONTROL or PURGE 1.3 No setting signal...
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FAILURE CAUSE TREATMENT Fluctuant flow rate Inlet pressure is too low or Heighten inlet pressure instable 5.2. High internal gas resistance Lessen internal resistance (The heavy gas flow should have big valve open, widen tube to parallel connecting gas bottles to improve gas supply capacity.) 5.3 Circuit or valve failure *Repair and adjust Disturbed...
Buyers undertake to check and inspect the goods and to notify SevenStar of shipment incidents by fax, phone or e-mail as soon as possible after receipting the goods.
9.2 Conversion Factors Instruction MFC and MFM are standard calibrated by N while it’s out of factory. Other gas calibrations can be approximated by converting of conversion factors of our instruction. While using other gas operating: One single gas: The conversion factors could find out in the users specification instruction. A mixture of two or more gases: Assume there is “n”...
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Beijing Sevenstar Qualiflow Electronic Equipment Manufacturing Co.,Ltd. D07 Series Mass Flow Controller Beijing Sevenstar Electronics Co., Ltd. Mass Flow Meter Subsidiary Co., Ltd Address: No.1 Jiuxianqiao East Rd., Chaoyang District, Beijing, China P.O.BOX 3#741, Beijing, China Post code: 100015 Tel:...
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