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TELEDYNE
HASTINGS
INSTRUMENTS
INSTRUCTION MANUAL
210/212 SERIES
FLOW METERS/CONTROLLERS
ISO 9001
CER T IFIED
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Manual Print History The print history shown below lists the printing dates of all revisions and addenda created for this manual. The revision level letter increases alphabetically as the manual undergoes subsequent updates. Addenda, which are released between revisions, contain important change information that the user should incorporate immediately into the manual. Addenda are numbered sequentially. When a new revision is created, all addenda associated with the previous revision of the
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Table of Contents 1. GENERAL INFORMATION............................................................................................................................................ 4 1.1. FEATURES.................................................................................................................................................................... 4 1.2. SPECIFICATIONS.................................................................................................................
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1. General Information The Hastings HFM-210 mass Flowmeter and HFC-212 flow controller are designed to accurately measure and control mass flow over the range of 10 sccm to 30 slm, without corrections or compensations for gas pressure and temperature with an accuracy of better than ±1% FS. Hastings mass flow instruments do not require any periodic maintenance under normal operating conditions with clean gases. No damage will occur from the use of moderate overpressures (~500 psi/3.4
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1.2. Specifications HFM-210 1 Accuracy and Linearity ........................................................................................................................±1% F.S. Repeatability ......................................................................................................................... ±0.05% F.S. (max.) Standard Pressure Rating ....................................................................................................................... 500 psig Press
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loop is returned to the power supply ground, the load must be between 0 and 600 ohm. If it is returned to the -15VDC, the load must be between 600 and 1200 ohm. Failure to meet these conditions will cause failure of the loop transmitter. The 4-20 mA I/O option can accept a current input. The 0-5 VDC command signal on pin 6 can be replaced by a 4-20mA command signal. The loop presets an impedance of 75 ohms and is returned to the power supply through the valve common. 1.5. Other Acce
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2. Installation and Operation This section contains the necessary steps to assist in getting a new Flowmeter /controller into operation as quickly and easily as possible. Please read the following thoroughly before attempting to install the instrument. 2.1. Receiving Inspection Carefully unpack the Hastings HFM-210/HFC-212 series instrument and any accessories that have also been ordered. Inspect for any obvious signs of damage to the shipment. Immediately advise the carrier who deliver
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The standard inlet and outlet fittings for the 210/212 are 0.25” and 0.125” Swagelok (optional VCR or VCO fittings). The O-rings for the end cap and the sensor are Viton (optional Kalrez or Neoprene). It is suggested that all connections be checked for leaks after installation. This can be done by pressurizing the instrument (do not exceed 500 psig unless the Flowmeter is specifically rated for higher pressures) and applying a diluted soap solution to the flow connections rated for higher
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2.6.1. Operating Conditions For proper operation, the combination of ambient temperature and gas temperature must be such that the Flowmeter temperature remains between 0 and 50°C. (Most accurate measurement of flow will be obtained if the Flowmeter is zeroed at operating temperature as temperature shifts result in some zero offset.) The HFM- 210/HFC-212 series is intended for use in non-condensing environments only. Condensate or any other liquids which enter the Flowmeter may destroy it
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The “COMMAND” pot adjusts the Analog command signal sent to the flow controller. The setting for each controller connected to the power supply can be observed. (Depending on how the power supply was set up, the display could indicate in flow units or percent of full scale). 2.7.2. Operation with a power supply other than a Hastings. The flow controller must be connected to the power source as specified in section 2.6. In general, a 0-5 VDC command signal proportional to the intended flow
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2.9. Valve-Override Control The valve override control line provides a method to override the loop controller and open or close the valve regardless of the flow or command signals. During normal operation this line must be allowed to float freely. This will allow the loop control to open and close the valve as it requires. If the valve override line is forced high (> +5 volts) the valve will be forced full open. If the valve-override line is forced negative (< -5 volts) the valve will
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3. Theory of Operation 3.1. Overall Functional Description: The HFC Flow Controller consists of a sensor, electronic circuitry, a shunt and a valve. The sensor measures the flow rate from 0 to 10 sccm of the gas to be metered. The shunt divides the flow such that the flow through the sensor is a precise percentage of the flow through the shunt. The flow through the sensor and the shunt is always laminar. The circuit board amplifies the sensor output and uses this output to control
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3.4. Shunt: Measurement of flow rates higher than the 10 sccm full scale is achieved by dividing Fig 3.3 the flow with a fixed ratio shunting arrangement, as is illustrated in Figure 3.3. This is accomplished by placing the measuring capillary tube parallel with one or more dimensionally similar channels, called a laminar flow element (LFE). Therefore, the sensor only needs to heat the gas passing through the capillary tube resulting in low power requirements, while retaining all
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4. Maintenance This section contains service and calibration information. Some portions of the instrument are delicate. Use extreme care when servicing the flow controller. The potentiometer positions and the electrical components referred to in the troubleshooting section can be found in Section 6.0 on the electrical component layout drawing. 4.1. Authorized Maintenance With proper care in installation and use, the flow controller will require little or no maintenance. If maintenance
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CAUSE: Flow controller not adjusted for the dynamics of the flow system. ACTION: Check upstream and downstream pressures. The gas supply regulator should not have excessive lockup when flow shuts off. Also ensure that there is not a large drop in pressure between the regulator and the instrument due to line resistance. Oscillations can also be caused if a large flow restriction is pneumatically close to the downstream end of the flow controller. The differential pressure across the uni
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4.4. Fitting and Shunt Changes: It is possible to change the fittings or the shunt, if necessary, as long as the instrument is recalibrated. These changes should be made with the instrument removed from all electrical and mechanical connections. The fitting on the downstream side of the instrument can be changed without needing recalibration. The upstream fitting is modified, however, and removing it will void the calibration. To remove or replace the shunt, carefully remove the inlet fitti
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5. Warranty and Repair 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 warranty does not apply to defects or failures resulting from unauthorized modification, misuse or mishandling of the product. This warranty does not apply to batteries or other expendable parts, or to damage caused by leaking batteries or any similar occurrence. This warranty does not appl
