VA Flow Meters RA 65 / FA 65 Contents Foreword................................3 Safety..................................3 2.1. Symbol and meaning........................3 2.2. General safety directions and exemption from liability ..........3 2.3. Intended use............................3 2.4. Special safety instructions concerning glass devices ............ 4 2.5.
2.3. Intended use The RA 65/FA 65 Series device is a variable-area flow meter for liquids and gases. It is designed for installation in vertical pipe runs. Installation in the pipeline should be carried out solely in accordance with these Instructions. The required version of the variable-area flowmeter should be selected on the basis of the pipe diameter at the installation location of the device.
In accordance with the law concerning handling of waste (critical waste) and the hazardous materials directive (general duty to protect), we would point out that all flow meters returned to Kirchner und Tochter for repair are required to be free from any and all hazardous substances (alkaline solutions, acids, solvents, etc.).
3. Pull the float securing rod out of the device (PVC red or grey). 4. Check that the float can move freely in the device. 5. Have ready: flat gaskets (FA 65) or packing material such as hemp (RA 65). These are not included with the supply.
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VA Flow Meters RA 65 / FA 65 Insert with internal thread Union nut Device head with Device head with flanged connection external thread Gasket Gasket O-ring O-ring RA 65 FA 65...
VA Flow Meters RA 65 / FA 65 4.3. Installation RA 65 Dismantle the inserts and the union nuts from the device. Slip the union nuts over the ends of the pipeline at the installation point. Screw the inserts on to the pipe ends together with packing material.
VA Flow Meters RA 65 / FA 65 7. Limit contacts MSK1, MSK12, MSKW The flow meter can be equipped with limit contacts to provide local indication with monitoring function: The limit contacts consist of a limit contact (reed switch) that is switched over by the magnet integrated in the float.
VA Flow Meters RA 65 / FA 65 7.1. Connection of limit contacts Electrical connection of the device must be carried out in conformity with the relevant VDE regulations (or equivalent national standards) and in accordance with the regulations issued by the local power supply utility.
VA Flow Meters RA 65 / FA 65 7.3. Right angle plug Connector field-wireable female connector, M12 x 1, angled Number of poles 4-pole Contacts metal, CuZn, optalloy-plated Contact carriers plastic, PA, black Grip plastic, PBT, black Seal plastic, FPM...
VA Flow Meters RA 65 / FA 65 8. Linear displacement sensor 4-20mA / 0-10V Operating principle: The linear displacement sensor based on the Hall principle delivers an output signal proportional to the height setting of the flow meter. The can be displayed in 4-20mA or 0-10V.
VA Flow Meters RA 65 / FA 65 8.2. Setting the sensor Normally the linear displacement sensor is delivered set on the lowest measurement range point. This corresponds in this condition to 4mA. The other measurement range or mA values can be found in the enclosed protocol.
VA Flow Meters RA 65 / FA 65 8.3. Technical data Measurement range [A...B] 160 mm Repeatability < 0.1 % from measurement range IA-BI < dependent upon position sensor Linearity deviation <1 % v. E. Temperature drift <±0.006%/K Ambient temperature -25...+ 70 °C...
VA Flow Meters RA 65 / FA 65 9. Maintenance and cleaning of the flow meter The device is maintenance-free. Should the glass cone become fouled, the device can be removed from the pipeline as follows. 9.1. Dismantling and installation Remove the flow meter out of the system by detaching the union nuts or, as the case may be, the screw connections and/or pipe unions.
VA Flow Meters RA 65 / FA 65 Service All devices with defects or deficiencies should be sent direct to our repair department. To enable our customer service facility to deal with complaints and repairs as quickly as possible, you are kindly requested to coordinate the return of devices with our sales department, Tel.
VA Flow Meters RA 65 / FA 65 Technical data Nominal pressure rating FA 65: PN 10 at 20 °C RA 65: PN 10 at 20 °C Max. operating pressure See table measuring ranges Thermal endurance 80°C, optionally: 100°C Ambient temperature 90°C...
VA Flow Meters RA 65 / FA 65 11.2. Measuring ranges max. operating Measuring range Measuring range pressure Size m 3 /h H 2 O m 3 /h at STP 1) [bar] at 20 °C – 5 l/h 0,006 –...
VA Flow Meters RA 65 / FA 65 11.4. Technical data of limit contacts Design MSK1 MSK12 Voltage switched 50VAC/75VDC 50VAC/75VDC Current switched 0,5A 0,5A Contact rating 10W/VA 10W/VA Dielectric strength 230VAC/400VDC 230VAC/400VDC Temperature range -20 to +90°C -20 to +90°C...
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VA Flow Meters RA 65 / FA 65 The equipment from Kirchner und Tochter has been tested in compliance with applicable CE-regulations of the European Community. The respective declaration of conformity is available on request. Technical data supplied without liability. The current valid version of our documents can be found under this URL: www.kt-web.de...
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