sens4 PCM-1c Quick Start Manual

PCM-1
Pressure transmitter
Ceramic diaphragm sensor
QSG-PCM-1-01, Revision: A, June 2018
Quick start guide
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Electrical installation
The PCM-1 requires an external power supply supplying in
the range 12-30 VDC. The external power supply shall be with
safe isolation according to PELV (Protective Extra Low
Voltage) requirements of EN60204-1.
The transmitter is protected against momentary overvoltage
on the supply line. The internal 100 mA thermal fuse will limit
current draw in case of overvoltage to limit overheating.
Additionally, the transmitter is protected against reverse
polarity caused by incorrect wiring to the power supply.
The transmitter electronics have a high level of immunity
against external electromagnetic interference. It is not
required to use braided shielded cables to comply with the
immunity requirements according to EN61326-1 industrial
locations, but it is recommended for best measurement
performance.
To ensure that the product complies with its IP (ingress
protection) rating proper mating connectors with sealing
material must be used.
The integrated hydrophobic membrane prevents internal
moisture accumulation and water condensation when
changes in ambient pressure, temperature and humidity
occur.
General information
Thank you for purchasing this Sens4 product. This quick start
guide contains important safety information and we encourage
you to read this guide prior to installation and use of this
product.
Symbols used
Following symbols are used in the quick start guide:
WARNING! Critical information to prevent dangerous
situations that can result in serious injury or death.
CAUTION! Important information to prevent dangerous
situations that can damage the device or auxiliary
equipment.
ACTION! Requires action or attention.
INFORMATION: Important recommendations
information for efficient use and best practice.
Intended use
The PCM-1 pressure transmitter is intended for gas and liquid
pressure measurement and control within the limits listed in
the specifications. The device is designed for screw-in fittings
mounting.
The device complies to EMC (Electro Magnetic Compatibility)
class B immunity requirements for industrial environments.
Electrical connection (0-10 VDC voltage output)
The voltage output transducer provides a voltage signal
proportional to the measured pressure.
The high resolution 16-bit voltage signal can be interfaced to a
PLC, A/D converter, voltmeter or other readout devices.
INFORMATION: It is recommended to use a differential
input to measure the output signal that uses a separate
signal return wire connected to the transmitter
connector. If power supply return and signal return
share the same wire connection the voltage drop as
function of supply current will cause a measurement
deviation. In that case, the measurement deviation will
increase with the cable length.
Safety information
This product should be installed and operated by technically
skilled or trained personnel only.
WARNING! This product is not intended for
installation and use in the presence of flammable
gases or other explosive environments.
WARNING! Ensure that the gases or liquids exposed
to the wetted materials are compatible with the
wetted materials described in the specifications table
and the used sealing materials.
WARNING! The pressure rating of the sensor element,
connecting process fittings and sealing must comply
with the maximum possible pressure in the
application.
The CE marking on the device does not apply to the
pressure equipment directive.
Special precautions must be taken, if pressure peaks
and
by water hammering can occur.
WARNING! Ensure that the process connection is
tightened according to the recommended torque
specification. Ensure that there are no leaks from the
process connection before
installation.
Do not remove the transmitter from the installation
when the installation is pressurized or contains
hazards fluids.
Connector pinout and cable wiring (0-10 VDC voltage output)
Connector pinout 4 pin DIN175301-803A
Pin Symbol Description
1 V+ Positive supply voltage
2 GND Supply voltage return
3 S+ Signal output
SH Shield
SH SH Shield
Connector pinout 4 pin M12, IEC61076-2-101
Pin Symbol Description
1 V+ Positive supply voltage
(1)
2 REL Solid state relay or NC
3 GND Supply voltage return
4 S+ Voltage signal output
SH SH Shield
Cable (Color code DIN41700)
Color Symbol Description
White V+ Positive supply voltage
Brown GND Supply voltage return
Green S+ Voltage signal output
Grey GND Voltage signal return
Pink REL Solid state relay or NC
Yellow SH Shield
(1) The solid-state relay is a hardware option and needs to be specified
when ordering the part. The setpoint value can be programmed using
the S4-Connect™ interface. For programming of setpoint values refer
to the full operating instructions.
Mechanical installation
The transmitter is intended for installation in a screw-in
process fitting.
Refer to maximum allowed pressure, sealing method
and assembly practices for the different process
connector types.
DIN 3852-E installation
The DIN 3852-E flange is delivered with a sealing O-ring. Do
not use thread seal material.
1. Ensure that the O-ring and its sealing surfaces are
clean and free of scratches or other damages.
2. Screw the transmitter into the corresponding flange
thread by hand.
3. Tighten it with a wrench. For G1/4": approx. 5 Nm; for
G1/2" NPT: approx. 10 Nm.
CAUTION! Do not exceed tightening torque values.
NPT flange installation
The NPT flange requires a suitable thread seal tape.
4. Screw the transmitter into the corresponding flange
pressurizing the
thread by hand.
5. Tighten it with a wrench. For 1/4" NPT: approx. 30 Nm;
for 1/2" NPT: approx. 70 Nm.
CAUTION! Do not exceed tightening torque values.
Ensure that the process connection is leak tight using proper
leak testing methods.
Signal to pressure conversion (0-10 VDC voltage output)
The transmitter with 0-10 VDC voltage output is available with
different pre-configured output scalings.
The voltage signal ( ) can be converted to pressure using
��
the following linear expression:
Voltage to pressure conversion: ��(��)
Calculation of constants:
�� − ��
������ ������
�� =
�� − ��
������ ������
4 3
+��
�� = −�� ∙ ��
������ ������
Where and are the minimum and maximum
�� ��
������ ������
pressure, respectively;
��
1 2 ������
maximum voltage, respectively.
User configuration of voltage output scaling
The S4-Connect™ interface
configuration of the analog voltage output. The minimum and
maximum output voltage and pressure can be set to any
value within the valid range for the transmitter. For more
information refer to the full operating instructions or visit
www.sens4.com/s4-connect.html
= �� ∙ �� + ��
and are the minimum and
��
������
enables flexible user