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D07-7B / ZM Mass Flow Controller D07-7BM / ZM Mass Flow Meter INSTRUCTION MANUAL Version Dec. 2011...
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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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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..
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Power supply -15 V 50 mA According to Figure 5 Dimensions Weight 0.92 kg The main specifications of D07 series could be found in table 1 and table 2. D07-7BM is the measuring part of D07-7B. Page 3 of 27...
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Inlet-Fittings Outlet-Fittings Base Figure 2. Structure of D07-7B Structure of D07-7M is basically as same as structure of D07-7A except solenoid valve. 3.2 Operation Principle The flow sensor that measure the mass flow (it don’t need pressure compensation) is a kind of capillary pipe temperature difference flow sensor which consists of two dependent resistors winding on the thin-wall capillaries.
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signal which is proportional to the mass flow rate of the gas through the tube. This 0~5 VDC signal is compared to a set point voltage from a D08 series Flow Readout Box (or other voltage source). From this comparison, any deviation between set point signal and measured signal are chapleted into a control valve adjustment until two signals are identical.
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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.
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Check that the delivery is complete and no parts are missing. Since the D07-7B can be ordered in Several configuration, ensure that the scope of supply is corect. If you think there is a problem plase contact the forwarder at once, with regard to liability.
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Figure 5. Dimension of D07-7BM/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 Swagelok and VCR, there are five type’s fittings can be provided: a.
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4.4 Electrical Interfacing +15V Zero adjustment Power common -15V -15VDC Set(0~5VDC) +15V -15VDC Valve drive Signal common Auto Common Output(0~5VDC) Purge +15VDC -15V Figure 7. D07-7B Electrical Interfacing Page 9 of 27...
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Box. 7B-MFC connection is showing in the following figure 7. Attention : D07-7B is upgrade of D07-7A; D07-7B applied affixed components and international standard D connector. Compared with 7A, they have the same position of connector lead but opposition of serial numbers.
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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”...
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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 7B & 7BM Another way to adjust zero is potentiometer adjustment from D08 series Flow Readout box.
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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.
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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.
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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.
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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.
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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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6.8 D07-7B, 7BM Ordering Code D07-[t] [g,g,g] [r,r,r,r] [f,f] [s] [m] Type Number – - [7B ] - [7BM] [g,g,g] – Please consult SEMI52-0302 For Example: -[ 013 ] N -[ 007 ] H -[ 000 ] Mixture gases (please consult [d] for detail)
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-[ D ] Vertical Inlet Down Description – -[ ] Default Value: The letters on cover and tag:in Chinese Differential Pressure:D07-7B: (0.1 ~ 0.5) MPa (14.5~72.5 psid) D07-7BM:<0.01MPa (1.5psid) Max Operating Pressure: 3 MPa (435.1 psig) Calibration Temperature:(22±2)℃ -[ S ] Customer Special Requirements:...
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Type Number:D07-7B MFC Gas:H Flow Range Full Scale:1SLM Inlet and Outlet Fittings:Swagelok 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℃.
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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...
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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.
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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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