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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

• Set level to the required min. level.
• Adjust the indication of the instrument to 0 % by

the potentiometer for empty adjustment.

Full adjustment

• Set level to the required max. level.
• 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 < 100 %

Empty adjustment

• Set level to the required min. level.
• Adjust the indication of the instrument to 0 % by

the potentiometer for empty adjustment.

Full adjustment

• Set product to the highest level and check with

dip measure (e.g. 80 %).

• 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 to a

min. level of > 0 % and a max. level 

100 %

Empty adjustment

• Set product to the low level and check with dip

measure (e.g. 20 %)

• Set indication of the instrument to 0 % with the

potentiometer for empty adjustment.

Full adjustment

• Set level to highest possible level and check with

dip measure (e.g. 60 %).

• Calculate the indicated value to be adjusted:

highest level minus lowest level = indicated value
to be adjusted.
In the example: 60 % – 20 % = 40 %.

• Set indication of the instrument to the calculated

value (in the example 40 %) with potentiometer
for full adjustment.

• Set the indication of the instrument to the actual

level (highest level, in the example 60 %) with
the potentiometer for empty adjustment.

Summary of Contents for VEGAMET 308

Page 1: ...nditioning instrument for continuous level measurement for connection of a capacitive measuring electrode or a pressure 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 A B 0 4 mA VEGAMET 308 0 20 40 60 80 100 ...

Page 2: ...tment of the switch points relay control lamp A B switch A measuring system consists of signal conditioning instrument VEGAMET 307 or VEGAMET 308 capacitive electrode with oscillator or pressure sensor with oscillator Additional indicators and auxiliary level switches can be connected to the current and voltage outputs Level measurement with capacitive electrodes Electrode product and vessel wall ...

Page 3: ... range 10 K Voltage output Range 0 10 V max 1 mA short circuit protected Resolution 0 05 Linearity error 0 025 measuring range Temperature error 0 025 measuring range 10 K Relay output only VEGAMET 308 Contact 1 spdt Function two point switching Mode A B Relay data Contact material AgCdO and Au plated min turn on voltage 10 mV switching current 10 µA max turn on voltage AC 250 V DC 60 V switching ...

Page 4: ... 0 20 40 60 80 100 A B 0 4 mA VEGAMET308 5 76 102 92 41 3 Terminal board Adapter 96 96 105 80 42 41 Metal link 119 110 92 with transparent cover 89 125 15 on 0 4 mA VEGAMET 307 A B 0 4 mA VEGAMET 308 0 20 40 60 80 100 0 20 40 60 80 100 Surface mounting Panel mounting 4 VEGAMET 307 308 ...

Page 5: ...lable mounting of the instrument into the housing as described under a b Rail mounting Snap in 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 Plug the instrument from the bottom to the carry ing rail and push until snap in 14 13 12 11 10 9 6 7 8 5 4 3 2 1 VEGAMET 307 308 Current output 0 4 20 mA Mains con...

Page 6: ... adjustment Multipoint connector Indicating meter Potentiometer for full adjustment Mains control lamp Potentiometer for adjustment of the max switch point Relay control lamp Potentiometer for adjustment of the min switch point Key for indication and adjustment of the max switch point A B switch Key for indication and adjustment to the min switch point Switch for current output A B 0 4 mA VEGAMET ...

Page 7: ...st the indication of the instrument to 0 by the potentiometer for empty adjustment Full adjustment Set product to the highest level and check with dip measure e g 80 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 to a min level of 0 and a max level 100 Empty adjustment Set product t...

Page 8: ...switch point for 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 Push button for adjustment of the max switch point and set the indicating instrument with the respective potentiometer to 0 Push button for adjustment of the min switch point and set the indicating ins...

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