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: |
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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 (MIL-STD-202G METHOD 214A, Test Condition H) |
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| Input Power: |
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8 to 30 VDC, 10 mA max. @ no load
Reverse polarity protected |
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| Airgap: |
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Up to 0.250" dependent on target geometry and sensor
construction |
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| Pulse Output Options: |
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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) |
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| Approvals: |
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CE compliant to EMC Directive 2004/108/EC for use in residential,
commercial, light industrial and heavy industrial environments |
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| Warranty: |
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Unconditional one (1) year warranty if used within specifications
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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 |
Red:
Input Power (+)
Black:
Common (-)
White:
Pulse A Output (+)
Orange:
Pulse B Output (+)
Green:
Direction Output Logic (+)
Braid:
Shield (non-terminated at sensor) |
TTL/CMOS (Std); fan-out of one (1) TTL/CMOS |
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