The Motion
Sensors (MSI) MR series of Magneto-Resistive zero speed sensors integrate
within the sensor body the
Magneto-Resistive element/s and all
amplification and signal-conditioning
electronics necessary to produce digital
square-wave output with excellent noise
immunity and transmission capability.
The MR series sensors can sense ferrous metal
(e.g., gears) and magnet targets at airgaps up to .200"
to .250", depending on target geometry and sensor
construction. Units can be configured for single or
(dual) bi-directional sensing. Our units also include a
unique circuit design that offers complete protection in
the event of any connection mis-wiring, not only reverse
polarity. The output frequency of these sensors has a
square pulse waveform that directly relates to the
number of turbine blades, gear teeth, etc. that have
been sensed. These pulses, in turn, can be correlated to
determine flow rate, RPM, or velocity.
Product
Specifications
MR series sensors are manufactured on a
custom basis to meet the specifications and requirements
of a particular application. MSI can make custom MR sensors in customer-specified lengths,
diameters, configurations, mounting threads (e.g.,
metric) as well as with different operating
specifications and options like pigtail leads, NPT
threads for explosion proof applications, etc. Please
contact us and we would be happy to make a product that
meets your specifications.
Features and
Specifications
Physical Features:
Operating
temperature: -40°C to +85°C
Storage temperature: -65°C to +125°C
Body material: 300 series stainless steel
Encapsulation: epoxy potting or
hermetically sealed, welded construction
Overall length: approximately 3.0 to
3.5"
High Shock and Vibration resistance -
Impact: 100 G's (6 mS, 1/2 sine) min.;
Vibration: 20 G's at 2,000 Hz
min
Input Power:
8 to 30 VDC,
10 mA max. @ no load
Reverse polarity
protected
Airgap:
Up to 0.250" dependent on target geometry
and sensor
construction
Pulse
Output Options:
Open
collector; maximum OFF voltage 30 VDC, maximum
ON current 400 mA
TTL/CMOS; fan-out of 5 TTL/CMOS loads
0 to 10 VDC square wave (requires 15 to
30 VDC input power)
Approvals:
CE compliant to EMC Directive 89/336/EEC
for use in residential, commercial, light
industrial and heavy industrial
environments
Warranty:
Unconditional one (1) year warranty if
used within
specifications
Output Types and
Specifications
Output Type
Interconnection Options
Pin/Pigtail Connections
Direction Output Logic
Single
Three
(3) pin MIL-C-5015 type connector with gold plated
pins; mates with MS3106-10SL-3S
Pigtail with wires or cable
NPT threaded body with wire
or cable pigtail for explosion proof environments.
Pin A (Red): Input Power (+)
Pin B (Black): Common (-)
Pin C (White): Pulse Output (+)
Dual/Bi-directional
Four
(4) pin DTIH-8-4PN type connector with gold plated
pins; mates with MS3116-116F-8-4S
Pigtail with wires or cable
NPT threaded body with wire
or cable pigtail for explosion proof environments.
Pin A (Red): Input Power (+)
Pin B (Black): Common (-)
Pin C (White): Pulse A Output (+)
Pin D (Orange): Pulse B Output (+)
Bi-directional with Direction
Output
(0-5V)
Pigtail with wires or cable
NPT threaded body with wire
or cable pigtail for explosion proof environments
