VEGATROL MET 307 / 308 - TIB - Technical Information
Contents
1. 100 VEGAMET 307 308 VEGA Empty adjustment e Set product to the low level and check with dip measure e g 20 e Set indication of the instrument to 0 with the potentiometer for empty adjustment Full adjustment e Set level to highest possible level and check with dip measure e g 60 e Calculate the indicated value to be adjusted highest level minus lowest level indicated value to be adjusted In the example 60 20 40 e Set indication of the instrument to the calculated value in the example 40 with potentiometer for full adjustment e Set the indication of the instrument to the actual level highest level in the example 60 with the potentiometer for empty adjustment VEGA Grieshaber KG Am Hohenstein 113 Postfach 11 42 D 77757 Schiltach Phone 0 78 36 50 0 Fax 0 78 36 50 201 Switch point adjustment only possible on VEGAMET 308 e Set A B switch acc to the following description to the desired mode A or B Mode A When exceeding the adjusted max level Relay de energized Relay control lamp lights Terminals 9 10 are connected through relay Mode B When decreasing the adjusted min level Relay de energized Relay control lamp lights Terminals 9 10 are connected through relay e Adjust switch point for min level Push button for adjustment of the min switch point and adjust the potentiometer of the indicating instrument to the desired min value e Adjust switch point for2. ugyon LO amp N LO YY a 110 gt Iso housing IP 55 for series 300 Option I ez A N ite y 125 107 lt a gt e p 4 VEGAMFT 307 308 Mounting instructions The instrument is suitable for panel or surface mounting The required parts are attached Panel mounting e Pull pluggable multipoint connector on the instru ment upwards e Screw in and fasten the pin on the rear of the instrument e Push instrument into the front panel cut out Push the terminal from the back on the pin and fasten with the screw When using the lockable transparent cover pro ceed as follows e Open cover Push the frame from the back over the upper instrument edge Further mounting as described above Electrical connection ee VEGA Surface mounting a Screw fastening e Push the metal sleeve in the instrument cut out see sketches e Fasten the instrument with 3 screws to the mounting plate For increased protection Iso housing with transpa rent cover protection IP 55 is available mounting of the instrument into the housing as described under a b Rail mounting Snap in e Fasten adapter plate for rail TS 35 x 7 5 mm acc to EN 50 022 on the back of the instrument with a screw spring of the adapter must be below e Plug the instrument from the bottom to the carry ing rail and push until snap in L M
3. VEGAMET 307 308 TIB Technical Information Operating Instructions IO fb00000000000000 VEGAMET 308 VEGA Signal conditioning instrument for continuous level measurement for connection of a capacitive measuring electrode or e apressure sensor VEGA Grieshaber KG Am Hohenstein 113 Postfach 11 42 D 77757 Schiltach Phone 0 78 36 50 0 Fax 0 78 36 50 201 300 400 500 800 VEGA Application These signal conditioning instruments VEGAMET 307 308 are used for level proportional output and indication of levels continuous level measure ment Configuration Function The VEGAMET 307 consists of e plastic housing with pluggable multipoint connec tor series 300 e electronics e front panel with analog indicating meter mains control lamp potentiometer for empty adjustment potentiometer for full adjustment change over switch for current output range 0 20 MA or 4 20 mA The VEGAMET 308 consists of e as VEGAMET 307 however additional adjustment elements for the level switch 2 pressure keys and 2 potentiometers for adjustment of the switch points relay control lamp A B switch Level measurement with capacitive electrodes Electrode product and vessel wall or electrode and product form a capacitor The capacitance increases with increasing level In either case the oscillator converts this capaci tance change into a level proportional measu
4. ains connection N Relay output with VEGAMET 308 gt Current output 0 4 20 mA gt Voltage output 0 10 V VEGAMET 307 308 The electrical connection is made on the multipoint connector acc to the diagram on the upper part of the housing Standard 2 wire cable can be used between VEGAMET and transducer If electromagnetic interference is expected screened cable should be used Protective measures If voltage spikes are expected the use of overvol tage arresters is recommended VEGAMEFT 307 308 2 e 2 m Ly 1 J Pressure sensor Electrode with oscillator with oscillator Observe TIB overvoltage arresters for their connection Indicated Current Voltage value output output 0 0 4mA OV 100 20 mA 10 V VEGA Indicating and operating elements Start up dJpooocscsoeccodo only VEGAMET 308 Key for indication and adjustment of the max switch point Multipoint connector Potentiometer for adjustment of the max switch point Indicating meter Potentiometer for empty adjustment Potentiometer for adjustment of the Switch for min switch point current output p f Key for indication and reno merero adjustment to the min full adjustment switch point Mains control lamp A B switch Relay control lamp Adjust the requested current output range e Carry out adjustment and switch poin
5. lution Linearity error Temperature error Relay output only VEGAMET 308 Contact Function Mode Relay data Contact material min turn on voltage switching current max turn on voltage switching current max breaking power 0 20 MA or 4 20 mA adjustable max 750 Ohm 0 05 0 025 measuring range 0 025 measuring range 10 K 0 10 V max 1 mA short circuit protected 0 05 0 025 measuring range 0 025 measuring range 10 K 1 spdt two point switching A B AgCdO and Au plated 10 mV 10 uA AC 250 V DC 60 V AC 2A DC 1A 125 VA 60 W Permissible ambient temperature housing Storage and transport temperature 25 C 60 C 4 F 140 F 25 C 70 C 4 F 158 F Housing Type Protection Dimensions plastic ABS IP 40 w 96 mm d 76 mm h 102 mm Pluggable multipoint connector cross section area of conductor max 2 5 mm2 Weight approx 270 g VEGAMEFT 307 308 VEGA Dimensional drawing Surface mounting Terminal board Adapter 80 A poooo0000000go J7 7 A j 20 4 atoll 1 80 I emg o l o l l sl 2 S amp D E l l I I Ono o Y Yy de ey ee lay Metal link r k with transparent cover Panel mounting o92 A 0 we l M 1 o ecc0000000000d0 40 60 20 qubba g 80 0 a af
6. max level Push button for adjustment of the max switch point and adjust the potentiometer of the indicating instrument to the desired max value Adjustment for single point switching e Push button for adjustment of the max switch point and set the indicating instru ment with the respective potentiometer to 0 e Push button for adjustment of the min switch point and set the indicating instru ment with the respective potentiometer to the required value Note The switching hysteresis is in this case 0 5 Technical data siihiect ta alterations 2 16 32466 Anril 93
7. ring signal This signal is fed to the VEGAMET 307 or 308 for signal conditioning The VEGAMET 308 is additionally equipped with an integral level switch with adjustable switching hysteresis Therefore level dependent switching functions are possible A measuring system consists of e signal conditioning instrument VEGAMET 307 or VEGAMET 308 capacitive electrode with oscillator or e pressure sensor with oscillator Additional indicators and auxiliary level switches can be connected to the current and voltage outputs Level measurement with pressure sensors The diaphragm of the pressure sensor converts the hydrostatic pressure of the product into a linear movement This movement is transmitted to the plunger type capacitor The level of the product therefore changes the capacitance VEGAMET 307 308 Technical data VEGA Power supply 20 250 V AC 48 62 Hz 20 90 VDC Power consumption at Un approx 3 VA Measuring signal Connection line input Resistance per conductor Linearity error Temperature error 2 wire unscreened standard cable max 50 Ohms 0 1 measuring range 0 01 measuring range 10K Adjustment data Empty adjustment range Current difference between empty and full adjustment 3 5 17 mA gt 600 LA Indication analog indication 0 100 Current output Range Load Resolution Linearity error Temperature error Voltage output Range Reso
8. t adjustment 0 20mAor4 20 mA VEGAMET 308 acc to the following description e Feed supply voltage should comply with the voltage stated on the connection diagram VEGAMET 307 308 Adjustment Empty and full adjustment via the spindle potentio meter The integrated slide clutch avoids overwin ding Before either adjustment each potentiometer must be turned by approx 22 turns clockwise In practice 3 versions are possible to carry out the empty full adjustment a The level can be set to the required min level 0 and max level 100 Empty adjustment e Set level to the required min level e Adjust the indication of the instrument to 0 by the potentiometer for empty adjustment Full adjustment e Set level to the required max level e Adjust the indication of the instrument to 100 by the potentiometer for full adjustment b The level in the vessel can be set to the required min level 0 but only to a max level lt 100 Empty adjustment Set level to the required min level e Adjust the indication of the instrument to 0 by the potentiometer for empty adjustment Full adjustment e Set product to the highest level and check with dip measure e g 80 e Adjust the indication of the instrument to the checked value in the example 80 with the potentiometer for full adjustment c The level in the vessel can be only set toa min level of gt 0 and a max level lt
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