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Intrinsic safety has become an increasingly popular approach for handling sensing requirements in hazardous locations. These sensors are intrinsically safe versions of Motion Sensors (MSI) Hermetically Sealed VR Sensors or Epoxy Encapsulated VR Sensors. They are certified intrinsically safe to CSA (with NRTL/C) and LCIE to ATEX (94/9/EC).

Standard Features and Specifications

Type:
  Variable reluctance (VR) or inductive type
 
Warranty:
  Unconditional one (1) year warranty if used within specifications
 
Physical Features:
  Body material: 300 series stainless steel (locknut included)

Encapsulation: hermetically sealed, heli-arc welded construction or epoxy encapsulation

Magnet that resists demagnetization

Focusing tip (pole piece) which allows greater air gap with no signal loss

IR leakage: 100 Mohms @ 100 VDC min.

High signal output

High Shock and Vibration resistance - Impact: 15 G's (11 mS, 1/2 sine) min.; Vibration: 20 G's at 2,000 Hz min
Interconnection Options:
  Two (2) pin gold plated glass sealed connector (mates with: MS3106-10SL-4S)

Pigtail with wires or cable

NPT threaded body with wire or cable pigtail for explosion proof environments

 
Entity Parameters:
  Group IIC:

Vmax/Ui = 30 VDC

Imax/Ii = 300 mA  Ci/Ci = 0 uF

Li/Li = 0 mH

 
Approvals:
  Intrinsic safety to CSA (with NRTL/C) and LCIE to ATEX (94/9/EC)
 
Ambient Temperature:
  -50°C to 175°C

Standard Models
PREMIUM VALUE
 
Hazardous Location: Class I, Div. I, Group A,B,C,D; Class II, Div. I, Group E,F,G; Class III and coal dust (If equipped with NPT/pigtail lead combinations, below units are also suitable for Class I, Div. I, Group A,B,C,D; Class II, Div. I, Group E,F,G; and Class III)
Model Number Type Mounting Thread
(A)		 Thread Length
(B)		 Overall Length
(C)		 Tip (Length/Dia.)
(D)		 Resistance
(ohms)		 Inductance
(Henry)		 Gauss Strength Interconnection Temperature
Range
PC45-46 Value 5/8x18 1.43 2.656 0.15/.187 150 Li/Li=0mH 1200 MIL-C-5015 Connector -50°C to +120°C
PC45-30 Value 5/8x18 1.43 2.656 0.25/.100 1200 Li/Li=0mH 1000 MIL-C-5015 Connector -50°C to +120°C
PC45-9 Premium 5/8x18 .875 2.685 0.31/.100 1700 Li/Li=0mH 325 MIL-C-5015 Connector -50°C to +175°C
PC45-7 Premium 5/8x18 .875 2.685 0.31/.100 1200 Li/Li=0mH 810 MIL-C-5015 Connector -50°C to +175°C
PC45-5 Premium 11/16x24 .563 2.685 0.70/.125 1380 Li/Li=0mH 350 MIL-C-5015 Connector -50°C to +175°C
PC45-1 Premium 11/16x24 .563 2.685 0.70/.125 1800 Li/Li=0mH 850 MIL-C-5015 Connector -50°C to +175°C
PC45-47 Premium 3/4x20 1.25 2.685 FLUSH 1380 Li/Li=0mH 350 MIL-C-5015 Connector -50C to +175C
PC45-48 Premium 3/4x20 1.25 2.685 FLUSH 1800 Li/Li=0mH 850 MIL-C-5015 Connector -50°C to +175°C

Notes:

  1. Dimensions in inches
  2. Specifications +/-  10%
  3. Mounting threads UNF-2A

Custom Intrinsically Safe Variable Reluctance Speed Sensors

MSI can make custom Intrinsically Safe variable reluctance speed 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. Our certifications permit us to manufacture a custom version under the existing certifications, which makes our process quick and cost effective.

Please contact our engineering department at eng@motionsensors.com or 252-331-2080 to learn how Motion Sensors can provide a custom Intrinsically Safe variable reluctance speed sensor for your application.
 
   

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