Kobold PDA Manuale utente
Operating Instructions
for
Pressure Transmitter
with Digital Display
Model: PDA
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622 Mary Street; Suite 101; Warminster, PA 18974
Phone: 267-673-8117 - Fax: 267-673-8118
Sa[email protected] - www.cabriggs.com
PDA
page 2 PDA 01/06
1. Contents
1. Contents........................................................................................................2
2. Note ............................................................................................................3
3. Instrument Inspection....................................................................................3
4. Operating Principle........................................................................................3
5. Regulation Use..............................................................................................4
6. Mechanical Connection.................................................................................4
7. Electrical Connection ....................................................................................5
7.1. Connector pin assignment PDA-15......................................................5
7.2. Connector pin assignment PDA-25, PDA-35…....................................6
8. Commissioning..............................................................................................7
8.1. Key function .........................................................................................7
9. Configuration.................................................................................................8
9.1. Value setting ........................................................................................9
9.2. Set-up mode for PDA-15....................................................................10
9.3. Set-up mode for PDA-25 and PDA-35 ...............................................11
10. Main Menu Items.........................................................................................13
10.1. Switching point...................................................................................13
10.2. Hysteresis ..........................................................................................13
10.3. Duo point ...........................................................................................13
10.4. Switching characteristic .....................................................................14
10.5. Time response ...................................................................................15
10.6. Contact-type ......................................................................................15
10.7. Current output....................................................................................15
10.8. Filter...................................................................................................16
10.9. Start adjustment.................................................................................16
10.10. Change Code.................................................................................16
11. Maintenance ...............................................................................................16
12. Technical Information..................................................................................17
13. Order Codes ...............................................................................................18
14. Dimensions .................................................................................................19
15. Declaration of Conformance .......................................................................20
Manufactured and sold by:
Kobold Messring GmbH
Nordring 22-24
D-65719 Hofheim
Tel.: +49(0)6192-2990
Fax: +49(0)6192-23398
Internet: www.kobold.com
PDA
PDA 01/06 page 3
2. Note
Please read these operating instructions before unpacking and putting the unit
into operation. Follow the instruction precisely as described herein.
The devices are only to be used, maintained and serviced by persons familiar
with these operating instructions and in accordance with local regulations
applying to Health & Safety and prevention of accidents.
When used in machines, the measuring unit should be used only when the
machines fulfil the EWG-machine guidelines.
3. Instrument Inspection
Instruments are inspected before shipping and sent out in perfect condition.
Should damage to a device be visible, we recommend a thorough inspection of
the delivery packaging. In case of damage, please inform your parcel service /
forwarding agent immediately, since they are responsible for damages during
transit.
Scope of delivery:
•Pressure Transmitter with Digital Display model: PDA
•Operating Instructions
4. Operating Principle
KOBOLD pressure indicator/transmitter series PDA, are cost effective electronic
pressure indicator/transmitters with digital indication of actual pressure.
An analogue output (0)4 - 20 mA is available for remote transmission of the
measured value. The device is optionally available in addition with a switching
output.
A piezzo resistive ceramic cell is used. The units can be used where high
switching accuracy is needed. Long-term stability, repeatability and the compact,
robust design makes it an ideal unit for use in OEM applications.
PDA
page 4 PDA 01/06
5. Regulation Use
Pressure transmitters are used to measure pressure in vessels, hydraulic and
pneumatic plant, refrigeration equipment and so forth.
The devices may only be used for liquids to which the probe and housing
materials are chemically resistant.
6. Mechanical Connection
Pressure taps should be prepared according to the following specifications for the
screw-in holes.
Gaskets to DIN 16 258 or formed gaskets are recommended for sealing British
Standard Parallel Pipe thread (BSPP). The required tightening torque depends on
the material and shape of the gasket used, and on the pressure port in the
pressure sensor. National Pipe Thread (NPT) fittings should be sealed with an
appropriate pipe thread sealant. Exposure to violent shocks and heat radiation
should be avoided.
The permissible service conditions for the pressure sensors should be observed.
When the pressure connection has been made and the power supply connected,
the sensor is ready for operation.
Sealing according DIN 16288 Sealing with Flat gasket
G 1/2 A
R 16
z
* min.
∅
7 +0,2
G 1/2 A
R 16
z
* min.
∅
7 +0,2
∅
21,3-0,2
G 1/4 A
R 16
z
* min.
∅7
20
,5
14
5
14
5
19
24
5
24
5
13
16
5
9
+0,2
-
0,5 -
0,5
-
0,5
+1
+1 +1
PDA
PDA 01/06 page 5
7. Electrical Connection
Important! Make sure that the voltages in your plant correspond
with the voltages on the nameplate.
•Make sure that the electrical supply lines are dead.
•The supply is connected through connector socket M12x1 as shown in the
wiring diagram below.
•Mating plugs with different cable lengths are available as options.
Important! The instrument electronics may be damaged if the
cable connections are connected incorrectly.
7.1. Connector pin assignment PDA-15...
Connection example
PDA-15
Pin M12
PDA-15
Not connected
+Vs/+ Supply
0 V / GND
Output
0 V / GND
Plug with cable ZUB-KAB-12K002 Plug
1
2
34
+Vs
A
nalog Out
0(4)-20mA
n.c.
GND
+Vs
GND
PDA
page 6 PDA 01/06
7.2. Connector pin assignment PDA-25, PDA-35…
Connection example
PDA-25... PDA-35...
PNP-Output NPN-Output
+24 VDC +24 VDC
0 V / GND 0 V / GND
0(4)-20 mA 0(4)-20 mA
0 V / GND 0 V / GND
Plug with cable ZUB-KAB-12K002 Plug
mA
+Vs
G
ND
Power
1
2
34
+24 V
DC
PNP out
GND
PDA-...P
3
M
Plug M12
0(4)-20 mA
5
PDA
PDA 01/06 page 7
8. Commissioning
Caution! Please note that if operated at high system temperatures
the case surface and controls can become very hot.
Connect the pressure transmitter according to the wiring diagram above
and supply it with the specified voltage.
The measuring range (upper range value) is displayed for 3 seconds after
switch on.
8.1. Key function
Normal mode (measuring mode)
Set-up mode
:
Press for 3 Sec. set-up mode
:
Display Low/High current value
: Next level
: Change value 3 sec.
Normal Mode
Any time:
or 20 sec.
Without pressing any
key
PDA
page 8 PDA 01/06
9. Configuration
The following values can be programmed on the pressure transmitter:
Range of values Factory setting
Switch point (Spo) -199…999 50,0
Hysteresis (HYS) -199…0 000
Duo point (duo) Switch point…999 --- (inactive)
Filter (Filt) 1/2/4/8/16/32/64 1
Time response (dSE, drE) 0,0…99,5 sec. 0,0
Contact-type (Con) Normally open contact
(no) or normally closed
contact (nc)
no (normally open
contact)
Start current (S-C) zero 0 to upper range value 0
End current (E-C) span 0 to upper range value upper range value
Start current selection (SCS) 0 / 4 mA 4
Filter (Filt) 1/2/4/8/16/32/64 1
Start adjustment (S-A,) tare 000 adjusted
Change Code (CCo,) 000 - 999 000
PDA
PDA 01/06 page 9
Save
9.1. Value setting
Value setting can be selected with the "" key in the main menu item (for
example: End current, "E-C"). The standard sequence for changing parameters is
given in the flowchart below.
[from the main menu item]
Set 1st position
Set 2nd position
Set 3rd position
Adjust decimal point
Save selected value
or re-enter
[to the next main menu item]
PDA
page 10 PDA 01/06
9.2. Set-up mode for PDA-15
7 levels
Value setting
Value setting
Value setting
Value setting
Value setting
Value setting
Start adjustment
Filter
Start current
Selection
End current
Start current
Code input
Code change
7sec
3 sec
Code=
Store
start point
7sec
7sec
7sec
Store
Start current
Store
End current
4-20
mA
0-20
mA
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