Camille Bauer KINAX 3W2 Betriebsanleitung - Seite 4

Blättern Sie online oder laden Sie pdf Betriebsanleitung für Transmitter Camille Bauer KINAX 3W2 herunter. Camille Bauer KINAX 3W2 5 Seiten. For angular position

Seite drucken
7.3 Electrical connection via wiring print with screw terminals
There are 4 screw terminals of the transmitter for attaching the electrical connec-
tions. For Non-Ex and ATEX version only.
Bridge
Rext.
–
2-wire connection
3-wire connection
(4...20 mA)
(different mA-signals)
A
= Measuring output ...
... as 2-wire connection (4...20 mA, signal in output/powering circuit)
... as 3- or 4-wire connection (different mA-signals)
H
= DC power supply H = 12...33 V resp. H = 12...30 V with Ex version
R
= External resistance
ext.
Fig. 9. Connection diagrams for 2-, 3- or 4-wire connection.
7.4 Electrical connection via wiring print with AMP-connections
There are 4 AMP-connections of the transmitter for attaching the electrical con-
nections. For Non-Ex version only.
4-wire connection
(different mA-signals)
A
= Measuring output ...
... as 2-wire connection (4...20 mA, signal in output/powering circuit)
... as 3- or 4-wire connection (different mA-signals)
H
= DC power supply H = 12...33 V
R
= External resistance
ext.
Fig. 10. Connection diagram for 4-wire connection.
7.5 Electrical connection via wiring print with trans-zorb-diode
There are 3 pads of the transmitter for attaching the electrical connections. For
Non-Ex version only.
A
H
+ –
+
Rext.
–
+
-
OUT
Bridge
2-wire connection
3-wire connection
(4...20 mA)
(different mA-signals)
A
= Measuring output ...
... as 2-wire connection (4...20 mA, signal in output/powering circuit)
... as 3- or 4-wire connection (different mA-signals)
H
= DC power supply H = 12...33 V
R
= External resistance
ext.
Fig. 11. Connection diagrams for 2-, 3- or 4-wire connection.
4
Rext.
Rext.
4-wire connection
(different mA-signals)
–
Rext.
H
H
+ –
+ –
Rext.
–
–
A
Rext.
A
+
+
+
-
OUT
4-wire connection
(different mA-signals)
8. Setting the beginning and end of the measuring range
The coarse adjustment of the beginning of the measuring range consists in aligning
the zero of the measured device with the external zero mark on the transmitter.
The procedure was described in Section "6. Mounting". This Section concerns
the fi ne adjustment not only of the beginning of the range (ZERO), but also of the
end of the scale (SPAN).
Firstly, switch on the power supply to the transmitter.
Remove the ZERO/SPAN sealing plug (4) (Fig. 12, left). Place the measured device
at its zero position, i.e. the position at which the KINAX 3W2 should produce 0 mA
(3- or 4-wire connection) resp. 4 mA (2-wire connection) at its output.
Should the output current differ by more than 2 % from its initial value, repeat the
–
coarse zero setting procedure described in Section "6. Mounting".
Then adjust the "ZERO" potentiometer (Fig. 12, right) using a watchmaker's screw-
driver (2.3 mm diam.) so that the desired output current fl ows.
Fig. 12 Adjustments «ZERO», «SPAN» and «S1».
Left: Adjustments covered by the sealing plug (4)
Right: Adjustments exposed.
Now rotate the measured device to its opposite limite position, i.e. the position
at which the KINAX 3W2 should produce the prescribed full-scale output current
(see rating plate).
Adjust the "SPAN" potentiometer with the screwdriver as before until precisely the
prescribed full-scale output current is measured at the output.
Now recheck the zero value and readjust on the ZERO potentiometer and then
recheck the full-scale value.
9. Adaptation from 2-wire connection to 3- or 4-wire
connection and vice versa
Transmitters with the ordering code 708 – ...D (see Section "13. Specifi cation
and ordering information", number 4) are designed for either a 2-wire connection
with an output range of 4...20 mA or a 3- or 4-wire connection with an output
range of 0...20 mA.
If, however, a transmitter be changed from one to the other (see wiring diagrams in
Fig. 7, 8, 9 and 11), the beginning and end of the measuring range must be readjusted.
10. Reversing the rotation for instruments with measuring
ranges > 150°
A switch is provided on angular transmitters with a measuring range > 150° for
reversing the direction of rotation. It is marked S1 and can be operated through
the opening in the rear part of the transmitter (Fig. 12).
To reverse the direction of rotation, remove the sealing plug (4) covering the
switch S1. Then operate the switch by turning it a quarter of a turn with a
watchmakers screwdriver (2.3 mm Ø), and reset the beginning and end of the
measuring range.
11. Electric commissioning
• Provide a separate power supply for the device in case of consumer loads with
high interference levels.
• Install the entire plant in an EMC-compatible manner. Installation environment
and wiring can affect the EMC of the device.
• For Versions with explosion protection:
The regulations according to EN 60079-14, the equip-
ment safety law, the generally acknowledged rules of the
industry and these operating instructions are applicable for
installation and operation.

12. Maintenance

The device is free of maintenance. Repairs may only be carried out by autho-
rized authorities.
(4)