Teledyne HFM-I-401 manuale d’uso

- i - INSTRUCTION MANUAL HFM-I-401 AND HFM-I-405 INDUSTRIAL FLOW METERS TELEDYNE HASTINGS INSTRUMENTS ISO 9001 CER TIFIED[...]

401-405 SERIES - ii - Manual Print History The print history shown below lists the p rinting dates of all revisions and ad denda created for this manual. The revision level letter increases alpha betically as the manual unde rgoes subsequent updates. Addenda, which are released between re visions, contain i mportant change informati on that the use[...]

401-405 SERIES - iii - Qui ck Sta rt Inst ruc tion s General Information Connect dry, clean gas and ensure connections are leak free. Connect Cable for power an d analog signal output. Check that electrical connections are correct. (See diagrams below) Replace front cover and cable feed-through ensuring gasket is seated and fasteners are secure. Di[...]

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401-405 SERIES - vi - CAUTION This instrument is available with multiple pin-outs. Ensure electrical connections are correct. CAUTION The 400-I series flow meters are designed for IEC Installation/Over voltage Category II – single phase receptacle connected loads. NOTE The Hastings 400 Series flow meters are designed for INDOOR and OUTDOOR operat[...]

401-405 SERIES - vii - Table of Contents GENERAL INFO RMATION ............................................................................................................ .........................1 1. G ENERAL I NFORMATION ...............................................................................................................................[...]

401-405 SERIES - viii - 5. W ARRANTY ...................................................................................................................................................... 23 5.1. W ARRANTY R EPAIR P OLICY ......................................................................................................................... 23 5.2[...]

401-405 SERIES - 1 - 1. General Infor mation 1. General Information 1.1. Overview 1.1.1. 400 Seri es Family The Hastings 400 Series is a family of flow instrument s which is specifically designed to meet the needs of the industrial gas flow market. The “I” family in the 400 Series features an IP-65 enclosure which allows the use of the instrume[...]

401-405 SERIES - 2 - • A digitally reported status of alarms an d warnings such as overflow/underflow • A flow totalizer to track the amount of ga s added to a system • A digitizing channel for an auxiliary analog signal • An internal curve fitting routine for “fine tuning” the base calibration • An alternate calibration set of 8 diff[...]

401-405 SERIES - 3 - Mechanical Fittings Standard: 1/2" Swagelok Standard: 1" Swagel ok Optional: ½" VCO®, ½" VCR® , ¾” Sw agelok, Optional: 1" VCO®,1" VCR®, ¾” Sw agelok, , 10mm Swagelok, 3/8" male NPT, ½” male NPT 1" male NPT, ¾” male NPT, 1 5/16"-12 straight 12mm Swagelok, ¾"-1[...]

401-405 SERIES - 4 - 2. Installation 2. Installation CAUTION Many of the functions described in this section require removing the enclosure front plate. Care must be taken when rei nstalling this plate to ensure that the sealing gasket is properly positioned and the fasteners are secure to maintai n an IP65 compliant seal. 2.1. Receiving Inspection[...]

401-405 SERIES - 5 - 2.4. Mounting the Electronics Remotely CAUTION In order to maintain the integrit y of the Electrostatic Discharge immunity both parts of the remote mounted versio n of the HFM- I-400 instrument must be screwed to a well grounded struc ture. The ferrite that is shipped with the instrument must be installed on the cable next to t[...]

401-405 SERIES - 6 - There are two possible connection me thods to the ana log terminal strip. The standard me thod is by inserting a ca ble through the supplied cable gland with an external jacket that meets the specifications of the following caut ion note and tighten ing down the cable gland nut securely to se al against the cable jacket. There [...]

401-405 SERIES - 7 - the range of 5-28 Vdc from a source external to the flow meter. The loop supply c an be the same supply as that for the instrument power or it can be an isolated loop supply. Figure 2-3 shows a typical setup using the same supply . This method requires a jumper from pin 2 to pin 4 on the terminal strip while connecting pin 3 to[...]

401-405 SERIES - 8 - Figure 2-4 Wiring diagram showing the curre nt loop powered by an external supply Fi g ure 2-3 Wirin g dia g ram showin g the current loo p su pp l y p owered b y the instrument su pp l y[...]

401-405 SERIES - 9 - 2.1.1.2. Voltage out put If the flow meter is configured for a voltage output, the signal will be available as a positive potential on pin 4 relative to pin 3 of the terminal strip. Since these pins are galvanically isolated, the signal cannot be read by an indicator between pin 4 and pin 1 of the terminal strip. Pin 3 must b e[...]

401-405 SERIES - 10 - half or full duplex; and jumper 5 is enabled when a ha rdware override of the baud rate (forcing it to 9600) is desired. These functions are summarized in Figure 2-6 . 2.7.2. RS-485 If RS485 is specified on the order, the flow meter is set to the default values: a ddress 61, unterminate d Tx and Rx lines. While the default add[...]

401-405 SERIES - 11 - Since the alarms act as switches they do not produce a voltage or current signal. However, the y can be used to generate a voltage si gnal on an Alarm Out line. This is done by connecting a suitable pull-up resistor between an external voltage supply and the desired alarm line while connecting Alar m Common to the common of th[...]

401-405 SERIES - 12 - 2.2. Rotary Gas Selector The Hastings 400 Series flow meters can have up to eight different calibrations stored internally. These are referred to as gas records. These records are use d to select different gases, but they can al so be useful in other ways; for instance reporting the flow in an al ternate range, flow uni t or r[...]

401-405 SERIES - 13 - Example 2- Changing the active gas record Selecting the active gas record is accomplished in one of two ways: 1. Hardware setting 2. Software setting Hardware: The hardware setting is selected by accessing a rota ry encoder on the upper PC board in the electronics enclosure. When set to a number po sitio n from 0 to 7 it activ[...]

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401-405 SERIES - 15 - 3. Operation 3. Operation The Hastings 400 Series flow meters are designed for operation with clean dry gas and in specified environmental conditions (See Section 1.2). The prop erly installed meter measures and reports the mass flow as an analog signal and, depending on the configuration and set up , as a digital response. Ot[...]

401-405 SERIES - 16 - 3.3.1. Digitally Reported Flow Output The flow rate can be read digitally by sending an ascii “F” command (preceded by the address for RS- 485). The instrument will respond with an ascii representation of the num erical value of the flow rate in the units of flow specified on the nameplate label. Example: A meter with RS-2[...]

401-405 SERIES - 17 - 3.4.2. Adjusting Zero The pre-conditions required for a zero check must als o be followed when making a zero adjust ment. The zero adjustment is a di gitally controlled “r eset” type operation. Wh en commanded, the meter initiates an internal routine that performs the fo llowing seque nce: measure th e current flow reading[...]

401-405 SERIES - 18 - 3.4.2.3.6. Reverse Flow If the flow through the flow meter reverses and flow begins to enter the exit of the flow meter and leave through the entrance of the flow meter the flow meter will measure this flow and report it digitally with reduced accuracy. The analog output will also indicate this by either generating a negative [...]

401-405 SERIES - 19 - 3.7.1. Zero Shift The zero offset can occur as the result of natural convection flow through the sensor tube if the instrument is not mounted in a level orientation wi th flow horizontal. This natural convection effect causes a zero shift proportional to the system pressu re . The overall effect is more pronounced for gases wi[...]

401-405 SERIES - 20 - 3.10. Flow Totalization The Hastings 400 Series flow meters are capable of pr oviding a value for the “total amount of gas” that has passed through the flow meter since t he last time the totalization function wa s reset. This value can be used to determine for example, the amount of gas used to fill a chamber or drawn fro[...]

401-405 SERIES - 21 - 4. P ar ts and Accessor ies 4. Parts & accessories These are parts and acces sories that are available b y separate order from Teledyne Hastin gs Instruments. 4.1. Power Pod – Power & Display units THPS-100 Singel Channel Power Supply The Teledyne Hastings Inst rume nts microprocessor based Power Pod -100 Thermal Mas[...]

401-405 SERIES - 22 - 4.1. Fittings Fittings Hastings # HFM-I-401 1/2" Swagelok Fittings 41-03-086 1/2" VCO Fittings 41-03-119 1/2" VCR Fittings 41-03-090 3/4" Swagelok Fitting 41-03-152 10 mm Swagelok 41-03-153 3/8" Male NPT 41-03-154 1/2" Male NPT 41-03-155 12 mm Swagelok 41-03-160 3/4-16 SAE/MS Straight Female (no f[...]

401-405 SERIES - 23 - 5. WA R R A N T Y 5. Warranty 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 material and workmanship. This w arr anty does not apply to de fects or failures resulting from unauthorized modification, misuse or mishan dling of [...]

401-405 SERIES - 24 - 6. Appendices 6. Appendices 6.1. Appendix 1- Volumetric versus Mass Flow Mass flow measures just what it says, the mass or weight of the gas flowing through the ins trument. Mass flow (or weight per unit time) units are given in pounds per hour (lb/ hour), kilograms per sec (kg/sec) etc. When your specifica tions state units o[...]

401-405 SERIES - 25 - 6.2. Appendix 2 - Gas Conversion Factors The gas correction factors (GCF’s) presented in this m anual were obtained by one of four methods. The following table summarizes the different methods for determi ning GCF’s and will help identify for which gases the highest degree of accuracy may be achieved when applying a correc[...]

401-405 SERIES - 26 - Some meters, specifically the high flow meters, are ca librated in air. The flow readings must then be corrected twice. Convert once from air to nitro gen, th en from nitro gen to the gas that will be measured with the meter. In this case, multiply the reading ti mes the ratio of the process gas’ GCF to the GCF of the calibr[...]

401-405 SERIES - 27 - 37 Cyclopropane C 3 H 6 0.4562 4 1.720 1.4440 38 Deuterium H 2 2 1.0003 4 0.165 0.3102 39 Diborane B 2 H 6 0.5063 5 1.131 1.0486 40 Dibromodifluoromethane CBr2F2 0.3590 4 8.576 5.2998 41 Dichlorofluoromethane CHCl 2 F 0.4481 4 4.207 3.2249 42 Dichloromethane CH 2 Cl 2 0.5322 4 3.472 3.0592 43 Dichloropropane C 3 H 6 Cl 2 0.269[...]

401-405 SERIES - 28 - 96 Isobutane C 4 H 10 0.2725 2 2.376 1.6912 97 Isobutanol C 4 H 10 O 0.2391 4 3.030 1.9228 98 Isobutene C 4 H 8 0.2984 4 2.293 1.6663 99 Isopentane C 5 H 12 0.2175 4 2.949 1.8975 100 Isopropyl Alcohol C 3 H 8 O 0.2931 4 2.456 1.7335 101 Isoxazole C 3 H 3 NO 0.4333 4 2.823 2.1501 102 Ketene C 2 H 2 O 0.5732 4 1.718 1.5127 103 K[...]

401-405 SERIES - 29 - 157 R143A C 2 H 3 F 3 0.3394 4 3.435 2.2533 158 R152A C 2 H 4 F 2 0.3877 4 2.700 1.9753 159 R218 C 3 F 8 0.1818 4 7.685 3.0998 160 R1416 C 2 H 3 Cl 2 F 0.3047 4 4.780 2.7342 161 Radon Rn 1.4043 4 9.074 1.0000 162 Sec-butanol C 4 H 10 O 0.2327 4 3.030 1.9213 163 Silane SiH 4 0.6809 5 1.313 1.1934 164 Silicone Tetrafluoride SiF [...]

401-405 SERIES - 30 - HFM-I-405 Flow meter[...]

401-405 SERIES - 31 - HFM-I-401 Flow Meter[...]