Products

Valve Position Transmitters

Watchman

Sentinel

Sentinel-II

Survivor

Survivor-II

Scout

Guardian

Companion

Indicateur

Dribble Control

Spare Parts

Valve Positioners

Series 40

Series 50

Valve Networking

ASi

Device Net

Profibus DP

Bracket Kits for Your Actuator

 
 
 
 
 
 
 

 

 
SENTINEL VPT
Explosion-Proof Nema 4, 4x, 7 & 9
The SENTINEL has been designed to provide the most visible and reliable valve position indication in explosion-proof environments. Moniteur's Engineered Loc-Ring Cam and Shaft retention system allows a multi-million cycle life, even in harsh environments. With both UL and CSA approvals, the Sentinel is the clearly the best choice.
 

Moniteur's VPT Selection Guide

Bracket Kits and Mounting Hardware
Download Specifications
Download Catalog Sheet

Common Spare Parts

Approvals:
UL / CSA Approved for Class 1, Division 1 Groups C-D and Class 2, Division 1 Groups E, F, G with Mechanical SPDT and DPDT switches.

UL / CSA Approved for Class 1, Division 2 Groups A, B and Class 1, Division 1 Groups C-D and Class 2, Division 1 Groups E, F, G with TTL SPDT Non-Contact Switches.

 
Features & Benefits of Moniteur's Sentinel VPT
Moniteur’s patented Loc-Ring Cam and Shaft Retention System ensures sensing accuracy and a multi-million cycle life of the physical platform.
Available with Moniteur's wide variety of reliable switches and sensors for today's advanced control systems. Our switch selection guide is listed below.
Internal Switches and terminal block are labeled for easier installation.
Clear Ektar cover offers excellent chemical resistance and strength and is environmentally sealed to prevent fogging or entry of contaminants.
Moniteur's patented indicator has a rated minimum life of 1,000,000 cycles. With indicators still in service after 9 million cycles, you're assured of long-term reliability.
Indicator is 100% adjustable to any valve or actuator.
The industry's only "true" visual valve position indicator available for multi-port valves, adjustable to match the physical flow pattern of the valve. See the many configurations below.
"Flat cover" version available without indicator is a cost effective option where visual indication is not required or there are space contraints.
Optional thermoplastic quick-mount bracket for NAMUR actuators stands up to corrosive environments by sealing the area between the actuator top and limit switch housing.
Intelligent Part Number System - Specify Your Sentinel

A

M

Y

B

-

5

1

2

0

1

2

3

4

-

5

6

7

8

1 - Series

6 - Switch Type

Sentinel

A

Mechanical

2 - Cover

Cherry SPDT - 15A

1

With Moniteur

M

Prism Gold SPDT - 1A

3

Flat Cover

F

ITW DPDT - 10A

4

3 - Moniteur

Non-Contact (Proximity)

No Indicator

N

Tungsten TTL SPDT- 3A

2

Black / Yellow

Y

Rhodium TTL SPDT - 1A

T

3-way path O

O

Bifurcated TTL SPDT - 3A

B

3-way path T

T

GO Leverless Limit Switches SPDT 4A

5

3-way path F

F

Inductive Sensors

4-way path S

S

P&F NJ2 -V3 (NAMUR)

8

180 degree T

1

P&F NBB3-V3-Z4

K

Green / White

G

P&F NBB2-V3-US

KA

Red / White

R

7 - Switch Quantity

Blue / White

B

1-6

1-6

Green / Red

A

8 - Conduit

Red / Green

C

(2) F 3/4" NPT

0

4 - Bearing

(2) F 3/4" + (1) F 1/2" NPT

6

Bronze

B

(3) F 3/4" NPT

5

303 Stainless

S

(1) F 3/4 " + (1) M 3/4" NPT

8

5 - Shaft

Options - Add Suffix

Standard 303 SS

1

Output

Standard 316 SS

3

Current 4-20 mA

420

NAMUR 303 SS

5

Resistive 0-1000 ohm

1K

NAMUR 316 SS

7

Other

LONG NAMUR 303 SS

E

Viton Seals

V

 

Most common items available for quick delivery:

AMYB-1120

AMYB-1420

AMYB-1220

AMYB-1T20

AFNB-1120

AFNB-1420

AFNB-1220

AFNB-1T20

AMYB-5120

AMYB-5120

AMYB-5220

AMYB-5T20

AFNB-5120

AFNB-5120

AFNB-5220

AFNB-5T20

Moniteur Switch and Sensor Selection Guide
Mechanical SPDT and DPDT Switches
The most popular switch for general purpose applications is rated 15A at 120 VAC and 2.5V at 24 VDC. Our standard mechanical switches are specified with higher operating forces and offer better resistance to freeze up. Gold Plated SPDT switches rated at 1A at 24 VDC are a low-cost alternative for intrinsically safe applications. DPDT Mechanical Switches rated at 10A / 125 VAC and 7A / 24VDC are also available. Specifications
Non-Contact TTL SPDT (proximity-type) Switches
These hermetically sealed switches set the standard for reliability. Tungsten TTL switches are used for high current AC and DC applications with a rating of 3A at 120 VAC and 2A at 24 VDC. Choose Rhodium TTL for low voltage / low current DC and Intrinsically Safe applications. Optional LEDs are also available on the Krystal TTL with Rhodium contacts. NOTE: Switches with Tungsten contacts are not recommended for DC signals lower than 50 mA. Specifications
GO Leverless Limit Switches
GO Proximity Switches provide unsurpassed reliability when combined with our reliable platform.
NAMUR, PNP or NPN Inductive Sensors

A wide variety of industry standard sensors is available to interface with control systems found in today's modern process plants. Specifications

Optional 4-20ma Transmitters and 0-1K ohm Potentiometers
Current or Resistive Output are available for 0-100% / 4-20mA feedback. Our electronics have been designed for severe applications and have been proven to outperform our competition in the toughest of environments. Specifications
Optional Pneumatic Switches Digital Cycle Counter
Pneumatic Switches are available for switching applications in areas where no electricity is available or desired. Pneumatic Switch Specs Our tamperproof Cycle Counter is a must for critical applications where valve performance must be tracked. Counter Specs
Moniteur's Visual Indicator Options
Black / Yellow
Full Green / Full Red
Full Red / Full Green
Red / White
Green / White
Blue / White
3 Way Path O
3 Way Path O Reversed
3 Way Path T
3 Way Path T Reversed
3 Way Path F
3 Way Path F Reversed
120 degree "PIG"
3 Way 180 degree path T
0-100 % Digital
3 Way Path S
  • Selecting the Right Switch for Your Application

  • Bracket Kits and Mounting Hardware for Your Valve Actuator

  • Download Catalog Sheet

  • Download Specifications

 

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