Inline MPS2 Operation manual
MPS2 Installation &User Guide
PRODUCT DESCRIPTION
Inline Model MPS2, Magnetic Pig Signalers
are designed to detect a magnet molded into
an Inline process pig. The detectors are
designed with two separate single-axis
integrated Hall Effect magnetic sensors, each
with an added ferromagnetic layer. The
ferromagnetic layer acts as a magnetic flux
concentrator, providing very high magnetic
sensitivity. Each sensor assembly consists of
two sensors, a signal conditioning control circuit, an LED
indicator, and a solid state output relay contact all
encapsulated in a rugged, aluminum housing.
SPECIFICATIONS
Electrical Classification – Waterproof / Non-Hazardous
Field Wiring - 4 conductor; max 10 ohms single conductor
Input Voltage -9 to 32 VDC
Power Consumption - 50 mA (0.6 watts @ 12VDC)
Output - 1 (Form A) contact, 200 volts(AC/DC), 250mA
INSTALLATION / LOCATION (see also “Installation Tips”)
A. Sensor Location – The MPS2 should be located directly
above the pig for a “parked” signal or at any location where the
pig will make a complete passing. Four factors play an
important role in selection of sensor locations:
(1) Expected location of the pig to be detected
(2) Undesired magnetic sources in the immediate area
(3) Maintenance access
(4) Magnetic null areas between pig magnets
Expected location – Sensors should be located as close
as possible to the magnet end of a pig with magnets in
one end or the center of a pig with magnets in both ends.
Undesired magnetic sources – Sensors should be placed
as far away from magnetic sources as possible (e.g.
safety cap magnets, fittings, welds, etc.) Other magnetic
sources are best determined by facility engineers with
experience in similar processes.
Occasionally null areas are observed above pigs. In these
instances, reliable detection can be achieved by moving
pigs backward or forward on the Pig Launcher/Receiver.
Maintenance Access - Consideration should be given to
easy access by maintenance personnel.
B. Local Electrical Codes
Sensor assemblies should be installed in accordance with all
local electrical codes. Use appropriate conduit
seals/breathers/drains if required. Electrical classification is
non-hazardous.
C. Installation Procedure
(1) Securely mount the sensor using the supplied strap.
(2) Connect the 4 conductors on the supplied cable to the
sensor observing correct polarity as detailed below:
White wire - DC Voltage Positive.
Black wire - DC Voltage Return.
Blue wire - Output Common.
Brown wire - Output Normally Open.
START UP
NOTE: Start up and calibration must take place with pig or
other magnetics away from sensor.
Upon completion of all mechanical mounting and field wiring,
apply system power and observe the following normal
condition:
A. Sensor LED flashes GREEN (the number of
flashes represents the major firmware version).
B. Sensor LED flashes RED (the number of flashes
represents the minor firmware version).
C. Sensor LED lights RED, and the output contact will
close for 2 seconds.
D. Sensor LED will double flash GREEN every 2 seconds.
This is the standard non-detect LED flashing mode.
CALIBRATION
NOTE: (1) Perform calibration with the sensor in its
permanent mounting location. If the sensor is re-located for
any reason, the calibration procedure must be performed again
in the new location. (2) DO NOT USE carbon steel or
magnetic tools to avoid calibration errors. (Use Ceramic Blade
screwdriver (www.aveninc.com - # 13222 or similar)
A. Using the ceramic blade screwdriver, turn the selector
Switch to the “Cal” position. The LED indicator should turn
green.
Once the sensor has finished its calibration, the LED will begin
double blinking every 2 seconds. This indicates successful
calibration.
B. Once calibrated, turn the switch to the “L” position. NOTE:
If your application requires higher sensitivity you may need to
use the “M” or “H” setting, but the “L” setting will work in most
cases.
C. The MPS2 is now ready to detect. NOTE: Sensitivity
adjustments do not require recalibration unless sensors are
physically moved on the size of the magnet is changed.
Inline Services, LLC. 27731 Commercial Park Rd., Tomball, TX 77375 | 281.401.8142 / 888.973.0079
INSTALLATION TIPS
Mount pig sensor with plastic tie straps and calibrate with Installation and Operations instructions provided with shipment
Launching PLR 1
Pigs with magnets in each end have a null area in the center where magnetic detection is weak. Position MPS2 sensor to detect either
the leading or trailing end section of the pig to avoid the null area.
Launching PLR 2
Sensor mounting on Launching PLR is best located to detect the magnet in the trailing end of the pig. The normal position is at the end
of the larger diameter relax chamber as shown on Launching PLR1 photo to the right. An alternate position is shown on Launching
PLR2 photo. This position is further back toward the mounting end of the PLR and on the flat surface as close to the larger diameter
relax chamber as possible.
Relax Receiver-Stop PLR 1
Mounting position on Relax Receiver-Stop PLR is normally best located to detect the leading end pig magnet as the pig rests against
the internal pig bar stop (not visible). The pig bar stop is located just in front of the return air fitting as shown on photo Relax Receiver-
Stop PLR1 to the right. An alternate mounting position is to detect the trailing end pig magnet as shown in Relax Receiver-Stop PLR2
photo
Relax Receiver-Stop PLR 2
Inline Services, LLC. 27731 Commercial Park Rd., Tomball, TX 77375 | 281.401.8142 / 888.973.0079
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