Instruction/ maintenance manual of the product 203 Manfrotto
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INSTRUCTION MANUAL 201/203 SERIES FLOW METERS/CONTROLLERS TELEDYNE HASTINGS INSTRUMENTS.
201/203 Series Page 2 of 20 Manual Print History The print history shown below lists the printing da tes of all revisions and addenda create d for this manual. The revision level letter increases alph abetically as the manual undergoes subsequent updates.
201/203 Series Page 3 of 20 Table of Contents 1. GENERAL INFO RMATIO N ............................................................................................................................................ 4 1.1. F EATURES ......................
201/203 Series Page 4 of 20 1. General Information The Hastings HFM-201/HFC-203 series Mass flow meter (HFM-201) and controller (HFC-203) are designed to accurately measure and control mass flow over .
201/203 Series Page 5 of 20 1.2. Specifications Accuracy ........................................................................................................... ±1% full sc ale (F.S.) Repeatabil ity ...............................................
201/203 Series Page 6 of 20 1.3. Optional 4-20 mA Current Output An option to the sta ndard 0-5 VDC o utput is the 4-20 mA cur rent output that is proportional to flow.
201/203 Series Page 7 of 20 2. Inst allation and Operation This section contains the necessary ste ps to assi st in ge tting a new flow meter/controller into operation as quickly and easily as possible. Please read the following th oroughly before attemptin g to install the instrument.
201/203 Series Page 8 of 20 regulators and large internal diameter plumbing help to make the system more stable. The pressur e drop between the regulator and the instrume nt due to line resistance should be minimized. The differential pressure across the u nit should be less than 6” of H2O at ma ximum flow.
201/203 Series Page 9 of 20 If a valve override switch is not desire d, the unit is ready for use at this time. If the override switch is desired, connect the center pin of a single pole, thr ee-position switch with the center off position to pin 8. Connect +15VDC to one end of the switch, a nd -1 5VDC to the other e nd.
201/203 Series Page 10 of 20 B, it then becomes a variable reference voltage for flow controller B proporti onal to the flow rate of flow controller A. If the set point potentio meter of flow controller B is set at 50% of full scale, and the reference voltage from flow controller A is 4.
201/203 Series Page 11 of 20 2.6.8. Response to Command Changes The response of the control circuit to changes to the command signal is set at the factory for fast, stable response. Should it be necessar y, the response is adjust able using the jumper lab eled “JP4,” located in the center of PC-828.
201/203 Series Page 12 of 20 3. Theory of Operation This section contains an overall functional de scription of HFC Flow Controllers. Detailed schematics and parts lists can be found at the end of the manual in Section 6.
201/203 Series Page 13 of 20 This signal is amplified by the meter circuitry until is 0-5.00 VDC. This 5 volt output is sent back to the power supply and to the flow meter circuitry, if applicable.
201/203 Series Page 14 of 20 3.5. Valve: At flow rates higher than 30 slm, two valves are used in parallel. A solenoid valve is used as a pilot valve to control a much larger pneumatic diaphragm valve. The pilot valve is an “automatic metering solenoid” valve.
201/203 Series Page 15 of 20 4. Maintenance This section contains service and calibration info rmation. Some portion s of the instrument are delicate. Use extreme care when servicing the fl ow controller. The poten tiometer positions and the electrical components referred to in the trouble shooting section can be fo und in Section 6.
201/203 Series Page 16 of 20 ACTION : Shut off gas supply and power supply. Remove cover and PC board from unit. Remove sensor assembly and examine. If sen sor has evid e nce of plugging, clean or replace as applicable SYMPTOM : Flow controller oscillates.
201/203 Series Page 17 of 20 4) Set command to 1 00%. Adjust SPAN (R29) po t until the flow reference reads full scale flow (5.000 VDC). NOTE: Perform this step only if a calibrated reference flow meter is available. 5) Record flow meter and fl ow reference outputs for flow rates of 20%, 40%, 6 0%, 80% and 100%.
201/203 Series Page 18 of 20 Orifice Changes: A) Determine the mini mum expected upstream pressure (Pu) in PSI ab solute and the maximu m expected downstream pressure (Pd) in PSI absolute for full flow conditions. B) If Pu >2Pd, use formula 1; other wise use formula 2.
201/203 Series Page 19 of 20 STOCK NO. DESCRIPTION .................................................................................. AIR RANG E 28-13-190 Orifice 0.046 ..................................................................................
201/203 Series Page 20 of 20 5. W ARRANTY 5.1. Warranty Repair Policy Hastings Instruments warrants this product for a period of one year from the date of shipment to be free from defects in mate rial and workmanship. This warranty does not apply to defec ts or failures resulting from unauthorized modification, misuse or mishandling of the product.
An important point after buying a device Manfrotto 203 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Manfrotto 203 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Manfrotto 203 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Manfrotto 203 you will learn all the available features of the product, as well as information on its operation. The information that you get Manfrotto 203 will certainly help you make a decision on the purchase.
If you already are a holder of Manfrotto 203, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Manfrotto 203.
However, one of the most important roles played by the user manual is to help in solving problems with Manfrotto 203. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Manfrotto 203 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
