Page 1
GR
Installation and
Operating Instructions
PTD 500
©
KROHNE 12/2003 7.02277.21.00
Subject to change without notice.
Variable area flowmeters
Vor tex flowmeters
Flow controllers
Electromagnetic flowmeters
Ultrasonic flowmeters
Mass flowmeters
Level measuring instruments
Communications technology
Engineering systems & solutions
Switches, counters, displays and recorders
Heat metering
Pressure and temperature
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Content
Safety information..........................................................................................................................3
Items includes with supply............................................................................................................3
Produkthaftung und Garantie .......................................................................................................3
CE / EMC / Standards/ Approvals .................................................................................................3
1
Installation...........................................................................................................................4
1.1 Mechanical installation..........................................................................................................4
1.2 Process connection...............................................................................................................4
1.3 Electrical connection ............................................................................................................. 4
1.3.1 Connection diagrams ............................................................................................................ 5
1.3.2 Start-up ................................................................................................................................. 5
1.3.3 Operator control ....................................................................................................................5
Technical data ..................................................................................................................... 6
2
2.1 Technical data.......................................................................................................................6
2.2 Dimensions ...........................................................................................................................7
3
Ordering code .....................................................................................................................8
3.1 Ordering code .......................................................................................................................8
3.2 Spare parts ...........................................................................................................................8
3.3 Accessories ..........................................................................................................................8
Product description ............................................................................................................ 9
4
4.1 Applications ..........................................................................................................................9
4.2 Functional principle ............................................................................................................... 9
4.3 Construction.......................................................................................................................... 9
4.4 Features................................................................................................................................ 9
If you need to return a device for testing or repair to KROHNE...............................................11
2 Installation and Operating Instructions PTD 500
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Safety information
Please read this manual carefully, and also take note of country-specific installation standards
(e.g. the VDE regulations in Germany) as well as prevailing safety regulations and accidents
prevention rules. For safety and warranty reasons, any internal work on the instruments, apart
from that involved in normal installation and electrical connection, must be carried out only by
qualified KROHNE personnel.
Items includes with supply
• Measuring instrument
• Hygienic adapter
• Installation and operating instructions
Produkthaftung und Garantie
Responsibility for suitability and intended use of these instruments rests solely with the operator.
Improper installation and operation of the instruments may lead to loss warranty.
In addition, the “General conditions of sale” forming the basis of the purchase contract are
applicable.
If instruments need to be returned to KROHNE, please note the information given on the last-butone page of these instructions.
KROHNE regrets that it cannot repair or check your instruments unless accompanied by a fully
completed Service and Repair sheet.
CE / EMC / Standards/ Approvals
The product bears the CE marking on account of compliance with and application of the following
standards:
EMCG (89/336/EEC)
EN 50081-1, 50081-2 EN 61326
EN 50121-4
Installation and Operating Instructions PTD 500 3
Page 4
1 Installation
1.1 Mechanical installation
• Use only the recommended sleeves or adapters. If other systems are used, no guarantee can
be given for proper functioning or leak tightness.
• Before installing and dismantling the sensor, make sure that the system is non-pressurised!
• Do not use Teflon or paper gaskets.
• Insert the measuring head with care and straight into the sleeve. Screw the sensor in by hand.
Then tighten down using an open-end wrench applied to the hexagon (jaw size 41) with a
torque between 20 and 30 Nm.
• On no account may a tightening torque be applied anywhere else other than at the hexagon!
• Following assembly, the position marking of the sleeve points to the outgoing cable and the
filter cover for the air vent. When welding in the sleeve, please bear this in mind for suitable
positioning.
1.2 Process connection
The hygienic G1“h process sleeves are easy to weld into tanks or pipes. The marking points to the
centre of the future position of the cable glands or M12 connector. This form of assembly allows
installation in conformity with standards of hygiene (to EHEDG, 3A and FDA).
Various hygienic adapter sleeves (see Accessories) are available for fitting to other process
connections. The device can be installed in any desired position.
1.3 Electrical connection
• Installation of the device in the plant may only be carried out by an electrician. Observe the
national and international regulations for the installation of electrical systems and equipment.
• For voltage supplies, use a suitable power supply unit (EN50178, SELV, PELV) with a voltage
of between 16 V and 30 V.
• Disconnect the plant from supply before connecting up the devices.
• Do not loosen or detach connections when energised.
• To avoid adverse effects due to interference voltages, a shielded cable is recommended if
there is any greater distance between sensor and display.
• The sensor operates as a 2-wire device (current sink). Normally, connection of cables L+ (1)
and I - (2) will suffice, see connection diagram 1.
4 Installation and Operating Instructions PTD 500
Page 5
1.3.1 Connection diagrams
PTD 500
1: braun / brown
2: weiß / white
1.3.2 Start-up
• Check for leak-tightness at the sleeve.
• Make sure that the cable glands are tight and, as the case may be, the M12 connectors are
properly tightened down.
• Check that the device is functioning properly (current output).
• Make sure that the housing lid is screwed down tight.
1.3.3 Operator control
• The device itself has no an auto zero function by pressing the button located behind the
electrical plug
Installation and Operating Instructions PTD 500 5
Page 6
2 Technical data
2.1 Technical data
Housing materials SS 1.4301,1.4305/ SS 304,PBT(M12), PA (plug)
Electrical connection Cable gland or M12 connector 4-pin (plug)
Type (class) of protection IP 67, III
Insulation resistance > 1 GOhm ( 500 V DC)
Shock resistance EN 60068-2-6
Vibration resistance EN 60068-2-6
Ambient temperature –25...+80 °C
Voltage supply 10...30 V DC
Analogue output 4...20 mA
Max. load impedance RL < 50 x Ub - 450Ω
Rise time 1) 25 ms
Accuracy in % 2) < ± 0.4 %
- Linearity < ± 0.1 %
- Hysteresis < ± 0.05 %
- Repeatability < ± 0.05 %
- Long-time stability < ± 0.2 % FS / year
Temperature coefficients Span < ± 0,1 % / 10 K
Process temperature –30...+125 °C (not compensated), -10..+80°C (comp.)
CIP/ SIP +140 °C, (max. 60 minutes)
Wetted materials 1.4435/1.4404
1) damping dAA = 0
2) all details based on a turn-down ratio of 1:1 in % of span
6 Installation and Operating Instructions PTD 500
Page 7
2.2 Dimensions
PTD 500
Dimensions in mm
Installation and Operating Instructions PTD 500 7
Page 8
3 Ordering code
3.1 Ordering code
Identification Key Pressure Sensor
VGP 4 0 1
0
PTD 500
Pressure range
0 - 160 mbar
1
0 - 250 mbar
2
0 - 400 mbar
3
0 - 600 mbar
4
0 - 1 bar
5
0 - 1,6 bar
6
0 - 4 bar
7
0 - 6 bar
8
0 - 10 bar
A
0 - 16 bar
B
0 - 20 bar
C
Customer specific measuring range
K
Electrical Connection
Screwed cable gland M 16
1
Plug M 12
2
Accessories
Without
0
Certificates
Without
L
M
N
P
R
S
T
U
V
W
X
0 - 2 psig
0 - 4 psig
0 - 6 psig
0 - 9 psig
0 - 15 psig
0 - 20 psig
0 - 60 psig
0 - 90 psig
0 - 150 psig
0 - 200 psig
0 - 300 psig
VGP4 0 1 Order designation
3.2 Spare parts
Should a replaceable part of the pressure sensor be lost or damaged, a replacement ca be
ordered on the basis of the appropriate parts number.
Designation Type
Housing lid KMD.008.055.100
Cable gland M16 KVV.M16.010.008
Plug insert M12 KVV.100.004.000
Plug-in part, 4-pin KVK.046.210.018
3.3 Accessories
Designation Typ
Varivent flange version N HVF 550
Sanitary pipe assembly kit DN 50 HMM 550
Tri-Clamp flange DN 32, DN 40, 2" HTC 550
Programming and display device PPM 100
Other process connections available on request.
8 Installation and Operating Instructions PTD 500
Page 9
4 Product description
4.1 Applications
The pressure sensor with flush-front stainless steel diaphragm and piezoresistive measuring
principle is suitable for pressure and hydrostatic pressure level measurement demanding high
standards in terms of hygiene and accuracy. The sensor is distinguished by a extremely good
long-time stability, a very small temperature drift and good overload withstand capability.
4.2 Functional principle
The piezo-resistive silicon sensor is anodic bonded on a very stable glass base, which is attached
to a stainless steel construction. This assembly guaranties an excellent thermal isolation.
The sensor is located from the process by a stainless steel diaphragm (1.4404/316 L) and a filling
liquid.
4.3 Construction
The weld able process sleeve, made of stainless steel, ensures installation in keeping with
hygiene requirements. The electronic evaluator is fully integrated into the stainless steel housing.
The connection head allows convenient and reliable electrical connection.
The device supplies a 4...20-mA signal in 2-wire connection technology (current sink).
4.4 Features
• Compact design, of stainless steel
• Integrated electronic unit with 4...20-mA current sink
• flush-front stainless steel diaphragm and piezoresistive measuring principle
• High overload withstand capability
• Optimum corrosion and abrasion resistance
• With CIP and SIP capability
• Defined position of the cable gland
• Hygienic adapter sleeves for other process connections
Installation and Operating Instructions PTD 500 9
Page 10
Notes
10 Installation and Operating Instructions PTD 500
Page 11
If you need to return a device for testing or repair to KROHNE
Your instrument has been carefully
manufactured and tested. If installed and
operated in accordance with these operating
instructions, your instrument will rarely present
any problems. Should you nevertheless need
to return an instrument for checkout or repair,
please pay strict attention to the following
points:
Due to statutory regulations concerning
protection of the environment and
safeguarding the health and safety of our
personnel, KROHNE may only handle, test
and repair returned instruments that have
been in contact with liquids if it is possible to
do so without risk to personnel and
environment.
This means that KROHNE can only service
your instrument if it is accompanied by a
certificate in line with the following model
confirming that the instrument is safe to
handle.
S P E C I M E N certificate
Company: ……………………………………….. Address: ……………………………………………
Department: …………………………………….. Name: ………………………………………………
Tel. No.: ………………………………………….
The enclosed instrument
Type: …………………………………………………………………………………………………………
KROHNE Order No. or Series No ………………………………………………………………………...
has been operated with the following liquid: ……………………………………………………………..
Because this liquid is
water-endangering * / toxic * / caustic * / flammable *
we have
– checked that all cavities in the instrument are free from such substances *
– flushed out and neutralized all cavities in the flowmeter *
(* delete if not applicable)
We confirm that there is no risk to man or environment through any residual liquid contained in the
instrument.
Date: ………………………….. Signature: ……………………………………………………………..
Company stamp:
Installation and Operating Instructions PTD 500 11
If the instrument has been operated with toxic,
caustic, flammable or water-endangering liquids,
you are kindly requested
• to check and ensure, if necessary by rinsing
or neutralizing, that all cavities in the
instrument are free from such dangerous
substances.
(Directions on how you can find out whether
the primary head has to be opened and then
flushed out or neutralized are obtainable from
KROHNE on request.)
• to enclose a certificate with the instrument
confirming that the instrument is safe to
handle and stating the liquid used.
KROHNE regret that they cannot service your
instrument unless it is accompanied by such a
certificate.
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