Hermetically Sealed VR Speed Sensors

Premium series VR speed sensors are hermetically sealed for resistance to moisture and other atmospheric contamination and can withstand repeated thermocycling in temperatures ranging from -450°F to +450°F, making them ideal for use in aerospace and other applications with broad temperature ranges. They are also excellent for use in cyrogenics for their ability to operate dependably at extremely low temperatures for long periods of time.

Variable Reluctance (VR) or inductive type (no internal magnet)
Hermetically sealed, heli-arc welded construction
Two (2) pin gold plated glass sealed connector (mates with: MS3106-10SL-4S)
300 series stainless steel housing (lock-nut included)
Magnet that resists demagnetization
Unique potting that compensates for temperature extremes
Focusing tip (pole piece) which allows greater air gap with no signal loss

High signal output
Temperature range: -450°F to +450°F
(-270°C to +232°C)
IR leakage: 100 Mohms @ 100 VDC minimum
High Shock and Vibration resistance
(MIL-Std-202G METHOD 214A, Test Condition H)
Intrinsically Safe certified versions available (ATEX and CSA)
Unconditional one (1) year warranty if used within specifications

Standard Drag VR Models Type 1

Model Number	Mounting Thread (A)	Thread Length (B)	Overall Length (C)	Tip (Length/Dia.) (D)	Resistance (ohms)	Inductance (Henry)	Gauss Strength
PC51-1G	5/8x18	1.00	2.212	.031/.100	1200	.54	810
PC13-74G	11/16x24	.563	2.685	.070/.125	1800	1.3	850
PC13-70G	11/16x24	.563	1.975	.070/.125	1800	1.3	850
PC13-106G	3/4x20	1.25	2.685	flush front	1800	1.3	850

Low Drag Models

Model Number	Mounting Thread (A)	Thread Length (B)	Overall Length (C)	Tip (Length/Dia.) (D)	Resistance (ohms)	Inductance (Henry)	Gauss Strength
PC55-2G	5/8x18	1.00	2.212	.031/.100	1700	1.4	325
PC24-45G	11/16x24	.563	2.220	.070/.125	1380	1.6	350
PC24-141G	3/4x20	1.25	2.685	flush front	1380	1.6	350

Inductive Models

Model Number	Mounting Thread (A)	Thread Length (B)	Overall Length (C)	Tip (Length/Dia.) (D)	Resistance (ohms)	Inductance (Henry)	Gauss Strength
PC53-1G	5/8x18	1.00	2.212	flush front	5000	15	n/a
PC3-24G	11/16x24	.563	2.220	flush front	5000	15-20	n/a

Notes:
Dimensions in inches
Specifications +/- 10%
Mounting threads UNF-2A

In addition to the standard models shown above, premium series VR sensors are available in custom lengths, diameters, configurations, and mounting threads. Custom operating specifications (resistance, inductance, etc). are available, as well as options such as pigtail leads or NPT threading. Additional sensor customization options

We provide custom sensors on a regular basis and are happy to help develop a solution for your application, or a replacement sensor for an existing application. Please contact our engineering department at eng@motionsensors.com or 252-331-2080 to discuss your application requirements.

ATEX & IECEx Certified: Custom & Standard Speed Sensors for Intrinsically Safe applications (also approved by CSA w/NRTL/C)