Level and Pressure Operating Instructions VEGASWING 71A and 75A
Contents Contents Safety information ........................................................................ 2 1 Product description 1.1 Function and configuration .................................................. 3 1.2 Principle of operation ........................................................... 3 1.3 Technical data ....................................................................... 4 1.4 Dimensions ........................................................................... 6 2 Mounting 2.
Product description 1 Product description 1.1 Function and configuration 1.2 Principle of operation VEGASWING series 70 vibrating level switches detect levels of liquids with a viscosity of 0.2 up to 10.000 mPa s and a density of ≥ 0.6 g/cm3. Modular construction enables their use in machines, plants, vessels and pipelines, even in applications severely limited in space. Typical applications are overfill and dry run protection.
Product description 1.3 Technical data Housing Housing material Protection Torque on the hexagon Plug connection Terminals stainless steel 1.4571 IP 67 80 Nm 4-pole plug with status indication (illuminated ring) max. 1 x 1.5 mm2 Process connection VEGASWING 71A - thread - material G 1 A or 1" NPT 1.
Product description Electronics - General Integration time Meas. frequency Hysteresis Control lamp approx. 0.5 s approx. 400 Hz approx. 4 mm with vertical installation illuminated ring with two-colour LED for status indication green – output conductive red – output blocks Electronics - Transistor output (SWING E72 T) Power supply Power consumption Output Load current Voltage loss Turn-on voltage Blocking current Protection class Overvoltage category Mode 10 … 55 V DC max. 0.
Product description 1.
Product description VEGASWING 75A Ø 40 125 Housing IP 66/IP 67 of 1.
Mounting 2 Mounting 2.1 Mounting instructions Flow In principle, VEGASWING can be mounted in any position. The instrument must be mounted such that the tuning fork is at the height of the required switching point. Note the following installation instructions: (e.g. in pipes) When mounting in pipes or in vessels with certain flow direction, you should mount VEGASWING such that the surfaces of the tuning fork are aligned with the direction of flow.
Mounting Transport Do not hold VEGASWING on the tuning fork. The tuning fork can be damaged. Polished version (VEGASWING 75A) Treat instruments with polished tuning fork (VEGASWING 75A) very carefully and do not touch the polished surface. Unpack VEGASWING 75A directly before mounting. Insert VEGASWING carefully into the provided opening and avoid contact with vessel parts. Cable entries When mounting outside, on cooled vessels or in humid areas in which e.g.
Electrical connection 3 Electrical connection 3.1 Connection instructions Plug connection Terminals 1 - 4 are marked on the plug. Note Switch off the power supply before starting connection work. 3 4 3 2 Terminal 4 1 2 Remove the plug. Loosen the screw (7) and disassemble the plug. Lead the connection cable through the cable entry and connect the cables according to the following illustrations. Terminal 1 Terminal 2 4 5 1 Terminal 3 Fig. 3.
Electrical connection 3.2 Wiring plan Mode B 2 3 UB 4 1 + 1 UB – UB Floating transistor output (SWING E72 T) UB 2 3 4 Power supply: 10 … 55 V DC (for further information see the following connection examples as well as technical data) – Mode A Max.
Electrical connection The transistor switches a second, galvanically isolated voltage source to the binary input of a PLC or to an electrical load. Mode A For mode B you have to switch the polarity of terminals 1 and 4. UB 4 1 + NPN action UB 2 + UB 3 4 PNP action Control of alternating current loads The transistor switches a galvanically separated alternating voltage 10 … 42 V AC to a load. Mode A Mode A Max. detection, overfill protection Mode B Min.
Setup 4 Setup 4.1 Switching status 4.2 Switching point The switching status can be checked with closed instrument by means of the illuminated ring in the upper part of the housing. The switching point of VEGASWING 71A and 75A is preadjusted and does not require further modifications. By interchanging of the connection cables, you can modify the switching status of the transistor output (T).
Diagnostics 5 Diagnostics 5.1 Function test VEGASWING 71A and 75A are equipped with an integrated test switch which can be activated magnetically. Proceed as follows to test the instrument: • Make sure that the tuning fork is uncovered. • Hold the test magnet (accessory) to the magnet symbol on the instrument housing (see fig. 5.1). The test magnet simulates a covering of the tuning fork. If the tuning fork is uncovered, the signal lamp of VEGASWING changes status.
Diagnostics 5.2 Replacement of the electronics The removal of the electronics unit will damage the housing seal. Therefore only open the instrument if you want to insert a new electronics unit. To replace the electronics in case of failure, the instrument must not be removed. Proceed as follows to replace the electronics unit: • Separate VEGASWING from operating voltage. • Loosen the plug (1), by screwing on the knurled ring.
VEGA Grieshaber KG Am Hohenstein 113 D-77761 Schiltach Phone (0 78 36) 50 - 0 Fax (0 78 36) 50 - 201 E-mail info@de.vega.com www.vega.com ISO 9001 All statements concerning scope of delivery, application, practical use and operating conditions of the sensors and processing systems correspond to the latest information at the time of printing.
