sens4 PCM-1c User manual
PCM-1
Pressure transmitter
Ceramic diaphragm sensor
QSG-PCM-1-01, Revision: A, June 2018
Quick start guide
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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 and
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.
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
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 pressurizing the
installation.
Do not remove the transmitter from the installation
when the installation is pressurized or contains
hazards fluids.
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
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.
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.
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.
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
2
REL
Solid state relay(1) 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.
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:
+
Where and
are the minimum and maximum
pressure, respectively; and are the minimum and
maximum voltage, respectively.
User configuration of voltage output scaling
The S4-Connect™ interface enables flexible user
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
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4
2
3
Electrical connection (4-20 mA current output)
The 2-wire 4-20 mA current loop combines the transmitter
output signal and supply voltage in one cable where the
current consumption represents the measurement signal.
The 4-20 mA signal complies with the NAMUR NE 43
standard.
A current loop resistor () value of 250 ohms is commonly
used and will provide a 1-5 VDC across the resistor. The
current loop resistor value can be chosen freely up to a
maximum of 800 Ohm, provided that the minimum and
maximum supply voltage range is respected.
INFORMATION: The loop current resistor should
have a low temperature drift coefficient to ensure
best measurement performance.
Calculation of current ():
Calculation of voltage ():
Calculation of resistor ():
Connector pinout and cable wiring (4-20 mA current output)
Connector pinout 4 pin DIN175301-803A
Pin
Symbol
Description
1
V+
Positive supply voltage
2
GND
Supply voltage return
3
NC
Not connected
SH
Shield
SH
SH
Shield
Connector pinout 4 pin M12, IEC61076-2-101
Pin
Symbol
Description
1
V+
Positive supply voltage
2
NC
Not connected
3
GND
Supply voltage return
4
NC
Not connected
SH
SH
Shield
Cable (Color code DIN41700)
Color
Symbol
Description
White
V+
Positive supply voltage
Brown
GND
Supply voltage return
Green
SH
Shield
Signal to pressure conversion (4-20 mA current output)
The transmitter with 4-20 mA current output is available with
different pre-configured output scaling.
The current signal () can be converted to pressure using the
following linear expression:
Current to pressure conversion:
Calculation of constants:
+
Where and
are the minimum and maximum
pressure, respectively; and are the minimum and
maximum current, respectively.
ATTENTION! The PCM-1 has a built-in self-diagnostic
and in case of product failure the current output will
provide a fault signal in the range of 3.2 - 3.6 mA in
compliance with the NAMUR NE43 standard. Replace
the unit in case of receiving a fault signal.
User configuration of current output scaling
The S4-Connect™ interface enables flexible user configuration
of the analog current output. The minimum and maximum
output current 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
Specifications
Specifications
Measuring range (0 bar to full-scale)
1, 2, 5, 10, 20, 50 bar
Measuring range (0 psi to full-scale)
15, 20, 30, 50, 100, 200, 250, 500 psi
Measuring principle
Ceramic membrane absolute or gauge
Accuracy, IEC 61298-2
+/- 0.1 % BFSL
Thermal drift (offset)
+/- 0.15% of full-scale
Output signal (Voltage)
0-10 VDC
Output resolution (Voltage)
16 bit / 150 nV
Output signal (Current)
4-20 mA(1)
Output resolution (Current)
16 bit / 244 nA
External current shunt resistor
10-800 Ω
Solid state relay contact rating
250 mA, 50 VDC / VAC peak
Environment conditions
Operating ambient temperature
-40 to +100 °C
Media temperature
-50 to +150 °C
Storage ambient temperature
-40 to +125 °C
Maximum media pressure (2)
2 × full-scale pressure
Burst media pressure
3 × full-scale pressure
Mounting position
Any
Protection rating, EN 60529/A2:2013
IP67 (3), IP65 (4)
Humidity, IEC 68-2-38
98%, non-condensing
Power supply
Supply voltage
12-30 VDC
Power consumption (Voltage version)
240 mW (Max)
Power consumption (Current version)
600 mW (Max)
Reverse polarity protection
Yes
Overvoltage protection
Yes
Internal fuse
100 mA (Thermal recoverable)
Materials
Enclosure
SS 1.4404 / AISI 316
Connector DIN 175301-803A
PA Nylon
Connector M12 IEC 61076-2-101
PA Nylon, Nickel plated Zinc alloy
Process connection
SS 1.4404 / AISI 316L
Sensor diaphragm (media wetted)
Ceramic Al2O3 96%
Sealing (media wetted)
FKM (Viton®)
Process leak tightness (ISO 27895:2009)
<1·10-9 mbar·l/sec.
Approvals
CE
EN61000-6-2, EN 61000-6-3
Pressure directive 97/23/CE
RoHS compliance
Directive EU 2015/863
Dimensions
P/N: PCM-1-xxxxxx1
M12 IEC 61076-2-101
P/N: PCM-1-xxxxxx2
DIN 175301-803A
P/N: PCM-1- xxxxxx3
P/N: PCM-1- xxxxxx4
P/N: PCM-1- xxxxxx5
Cable with flying leads
All dimensions are in mm unless otherwise stated –General tolerance ISO 2768-1 M
3D step files are available online at: www.sens4.com/support.html
Maintenance
Maintenance is not required during the lifecycle of this product.
The calibration may shift during the life-time and re-calibration
can be performed by the user. Refer to PCM-1 configuration and
operating manual.
The PCM-1 can be user configured, calibrated and tested using
the S4-Connect™ USB adapter.
Return
Before returning a product to Sens4 proper return forms and a
return materials authorization (RMA) must be filled out. The
RMA procedure can be found on:
www.sens4.com/support.html
Disposal in the European Union
At the end of life of this product, it must be
disposed according to the European Directive
2012/19/EU (WEEE). This product should not be
mixed with general household waste.
WARNING! If the product has been exposed to human
or environmental hazards materials during its use,
ensure proper decontamination before disposal.
For proper treatment, recovery and recycling, please take this
product to designated collection points. Please contact your
local authority for further details of your nearest designated
collection point.
For questions regarding disposal please contact your dealer or
Sens4 for further information.
Declaration of Conformity
This declaration of conformity has been made in accordance with EN ISO/IEC 17050-
1:2010
Manufacturer:
Address:
Sens4 A/S
Nordre Strandvej 119G
3150 Hellebaek
Denmark
We hereby declare under our sole responsibility that the following products:
Product description:
Pressure Transmitter
Product part number
PCM-1-xxxx1x
Complies with the requirements of following relevant European Union harmonization
directive:
Electromagnetic Compatibility (EMC) Directive 2014/30/EU
RoHS Directive EU 2015/863
Conformity is assessed in accordance to the following standards:
Reference: Date
Title
EN61326-1: 2013
Product family standard, Measurement, control and
laboratory equipment
EN50581: 2012
Technical documentation for the assessment of
electrical and electronic products with respect to the
restriction of hazardous substances
Signed on behalf of:
Sens4 A/S
Place of issue:
Hellebaek, Denmark
Date of issue:
April 11th 2018
Signature:
Name, Title
Ole Wenzel, Chief Executive Officer
This declaration of conformity is available online at: www.sens4.com/doc.htm
Document number: DOC-PCM-1-01, Revision: A
Warranty and disclaimer
Sens4 warrants this product to be free from defects in
materials and workmanship for a period of 24 months from
the date of the delivery.
Warranty does not cover:
1. Mechanical or corrosive damage to the sensor
diaphragm
2. Physical or deposition contamination of the sensor
diaphragm
3. Damage caused by shipping
4. Normal wear and tear
5. Incorrect use or installation
6. Operation beyond the published design limits
Sens4 is not liable for any claims arising from improper use,
incorrect installation or use with gases or liquids not
compatible with the media wetted materials described in the
specifications table. Sens4 is not liable for loss of profits or
revenue, overheads, loss of data, reinstallation costs, damage
to other equipment or any incidental or consequential
damages of any nature.
The Standard Terms and Conditions can be found on
www.sens4.com and shall apply to the sales contract and
use of this product.
Sens4 A/S | Ndr. Strandvej 119G | 3150 Hellebaek | Denmark
www.sens4.com
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