Obsolete DP-10 Manuale utente
Operating Instructions
Betriebsanleitung
Mode d'emploi
Manual de Instrucciones
GB
D
F
E
Differential Pressure Transmitter, Model DP-10
Differenzdruck-Messumformer, Typ DP-10
Transmetteur de pression différentielle, Type DP-10
Transmisor de presión diferencial, Modelo DP-10
Differential Pressure Transmitter, Model DP-10
GB
D
F
E
2
2333401 07/2009 GB/D/F/E
Operating Instructions Model DP-10 Page 3 - 11
Betriebsanleitung Typ DP-10 Seite 12 - 21
Mode d'emploi Type DP-10 Page 22 - 31
Manual de Instrucciones Modelo DP-10 Página 32 - 41
Information
This symbol provides you with information, notes and tips.
Warning!
This Symbol warns you against actions that can cause injury to
people or damage to the instrument.
WIKA Operating Instructions Differential Pressure Transmitter 3
GB
2333401 07/2009 GB/D/F/E
Contents
1. Safety instructions 4
2. Measuring principle 4
3. Mounting 5
3.1 Mounting instructions 5
3.2 Process connections 5
4. Dimensions in mm 6
5. Electrical connection 6
6. Calibration instructions 8
6.1 Zero point adjustment (Z) 8
6.2 Span adjustment (S) 8
6.3 Adjustment of the alarm contacts 8
7. Specifications 10
8. EC-Declaration of Conformity 42
Contents
4
GB
WIKA Operating Instructions Differential Pressure Transmitter
2333401 07/2009 GB/D/F/E
1. Safety instructions / 2. Measuring principle
1. Safety instructions
The relevant national safety provisions (e.g. VDE 0100) must be
observed when mounting, putting into commission and operat-
ing this pressure transmitter. Severe injuries and/or damage
might occur as a result of non-compliance with the correspond-
ing provisions. Only qualified personnel is authorised to work on
these instruments.
Please observe the following operating parameters
The pressure transmitter is exclusively suitable for dry, clean,
non-aggressive gases.
Do not blow into the process connections!
The measuring cell might be damaged by the respiratory
pressure.
Max. medium/ambient temperature: 10 ... 50 °C
It has to be made sure that during transportation both
process connections are open. Instruments with absolute
pressure measuring ranges must be transported in pressure
compensation cabins.
2. Measuring principle
The pressure mesurement is realised via a sensitive diaphragm or, in the case of
absolute pressure measuring ranges, a capsule which is adapted to the measuring
range. An inductive system generates a linear signal which changes in proportion to
the prevailing pressure.
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3. Mounting
3. Mounting
The differential pressure transmitter is designed for wall-mounting. After unscrewing
the two screws at the case the black connection socket can be pulled off the case.
The socket has rated break points for the fastening screws.
3.1 Mounting instructions
The wall-mounting should be carried out in a vertical position, i.e. the process
connections facing down, because the instrument was adjusted in this position.
Thus a possible condensate penetration into the pressure line is avoided.
The mounting location should be free of shocks, vibrations and heat irradiation.
The instrument should not be mounted in the close environment of sources of
interference (e.g. transformers, motors, senders).
3.2 Process connections
2 x hose connection 6.6 x 11 mm
for hoses with an inside diameter of 5 ... 6 mm.
Pressure is to be connected to the „+“ connection.
Vacuum is to be connected to the „-“ connection.
Instruments with absolute pressure measuring ranges have only
one process connection.
6
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WIKA Operating Instructions Differential Pressure Transmitter
2333401 07/2009 GB/D/F/E
4. Dimensions in mm / 5. Electrical connection
4. Dimensions in mm
Digital display
5. Electrical connection
The cable is led through the M12 x 1.5 gland into the connection socket. In the
socket are screw terminals for the wiring (terminal area up to 1.5 mm²).
SW 10
M12 x 1.5
Power supply
Sink e.g. display
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5. Electrical connection
2-wire
3-wire
4-wire (AC-Supply)
Be cautious when connecting supply voltages.
Do not connect supply voltage to the output terminals
L1
N
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GB
WIKA Operating Instructions Differential Pressure Transmitter
2333401 07/2009 GB/D/F/E
6. Calibration instructions
6. Calibration instructions
Please start the calibration only after a running-in period of approx.
30 - 60 minutes.
6.1 Zero point adjustment (Z)
For the zero point adjustment both process connections must be open. After pulling
off the rubber plugs at the instrument‘s front the output signal can be adjusted with
the zero potentiometer (Z).
For the adjustment of pressure transmitters with absolute pressure measuring range
the process connection is to be connected to a pressure generator and an absolute
pressure reference via a T-piece. Subsequently an absolute pressure is generated for
which the output signal shall be: 0 V / 0 mA or 4 mA. Now the output signal can be
adjusted with the zero potentiometer (Z).
6.2 Span adjustment (S)
For the span adjustment the nominal pressure must be connected via a T-piece from
the pressure generation to the pressure reference and the pressure channel.
The WIKA precision calibrator model CPC2000, which has a pressure generation
and a pressure reference, is excellently suitable for this task.
Pressure is to be connected to the “+” connection and vacuum to the “-” connec-
tion. Now the output signal may be adjusted with the span potentiometer (S).
6.3 Adjustment of the alarm contacts
For the adjustment of the alarm contacts the reference pressure must be applied
at which the contact is supposed to close. This is accomplished with a pressure
generator which is connected to the pressure reference and the pressure channel via
a T-piece. Pressure is to be connected to the “+” connection and vacuum to the “-”
connection. The potentiometer of the switch point SP I or II must be adjusted until
the red LED above the respective potentiometer lights up, i.e. the switch value has
been reached and the contact closes.
WIKA Operating Instructions Differential Pressure Transmitter 9
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6. Calibration instructions
Then the pressure at which the contact is desired to break again must be applied.
Now the respective hysteresis potentiometer must be adjusted ( ) until the LED
goes out again. The switching hysteresis is adjustable within a range of 0 ... 15 %.
1. Potentiometer for
switching hysteresis
2. Potentiometer for
switching points
3. LCD (optional)
4. Signal
5. Power Supply
6. Product No.
7. Alarm contacts
(optional)
8. Span potentiometer
9. Zero potentiometer
10.Process connection
CE
10
GB
WIKA Operating Instructions Differential Pressure Transmitter
2333401 07/2009 GB/D/F/E
7. Specifications
Specifications Model DP-10
Pressure ranges1) mbar 0.6 1 1.6 2.5 4 6 10 16 25
Over pressure safety mbar 3 5 8 12.5 20 30 50 80 125
Pressure ranges1) mbar 40 60 100 160 250 400 600 1000
Over pressure safety mbar 200 300 500 800 1000 1000 1200 2000
Maximum static pressure mbar 1000 {2000}
Pressure reference
relative pressure, differential pressure, {absolute pressure2) from
500 mbar abs; special pressure range 800 ... 1200 mbar abs}
Pressure connection mm two hose connections Ø 6.6 x 11 for hoses with
inside Ø 5 ... 6 {2 x clamping ring connection G ⅛, Ms}
Materials
Wetted partsMs, CuBe, PU, Ni
Casebottom part: ABS, glass fibre reinforced, top part: ABS
Power supply UBDC V
19 ... 31 {12 ... 30 with signal output 4 ... 20 mA, 2-wire system}
AC V {24, 115 or 230 (respectively ± 10 %, 50 ... 60 Hz)}
Signal output and Maximum load RA0 ... 10 V, 3-wire system RA> 2,0 kOhm
{0 ... 5 V, 3-wire system} RA≤2,0 kOhm
{0 (4)... 20 mA, 3-wire system} RA≤500 Ohm
{4 ... 20 mA, 2-wire system} RA≤(UB[V] – 12 V) / 0,02 mA
{other on request}
Power consumption mA ≤ 10; (3-/4-wire); (AC-/DC-supply)
Response time (10 ... 90 %) ms approx. 20 {attenuation on request}
Adjustability zero point / span ± 5 % of span
Accuracy ≤ 1.0 % of span (limit point calibration) {0.5 or 0.2 for pressure
range from 2.5 mbar}
Hysteresis ≤0.1 % d. Spanne
Repeatability ≤0.05 % of span
1-year stability ≤0.5 % of span (at reference conditions)
Permissible temperature of
Medium-10 ... +50 °C 14 ... 122 °F
Ambient-10 ... +50 °C {-10 ... +60 °C} 14 ... 122 °F (14 ... 140 °F)
Storage-10 ... +70 °C 14 ... 158 °F
Compensated temperature range +10 ... +50 °C 14 ... 122 °F
Temperature coefficients in compensated temp range:
Mean TC of zero≤0.3 % of span/10K
Mean TC of range≤0.3 % of span/10K
{ } Items in curved brackets are optional extras for additional price.
1) The measuring ranges 0 ... 0.1 mbar; 0 ... 0.25 mbar; 0 ... 0.4 mbar are available on request.
For these measuring ranges a larger measuring cell and consequently also a case with larger dimensions is required.
2) Only with 4 ... 20 mA 2-wire, other output signals on request.
7. Specifications
Indice
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