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Sentinel VPT – Valve Monitor

Home Products Valve Monitors – Limit SwitchSentinel VPT – Valve Monitor

Sentinel VPT for Hazardous Areas – Explosion-Proof NEMA 4, 4X, 7 & 9

AMYB-5120

Sentinel VPT

Explosion-Proof
Nema 4, 4X, 7 & 9

The SENTINEL VPT 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.

Downloads
Download Catalog Sheet
Download Specifications
Download I & M

Links
Bracket Kits and Mtg Hardware
Common Spare Parts
Visual Indicateurs
Moniteur’s VPT Selection Guide

ul-logo-50x50csa-logo-43x50

Approvals

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

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

Product Certificates

Sentinel – A Series – Certificate of Compliance UL

  • Specifications
  • Part Numbers
  • Switches/Sensors
  • Visual Indicator
  • Features
  • Documents

Materials

Enclosure

• Die Cast Aluminum

Bearing

• Bronze
• 303 Stainless Steel

Shaft

• 303 Stainless Steel
• 316 Stainless Steel

Fasteners

• 316 and 18-8 Stainless Steel

Shaft Loc-Ring

• Stainless Steel

O-Rings

• Buna-N
• Viton

Indicator Cover

• Ektar Copolyester

Cams and Splines

• Acetal

Options

Conduit Entries

• 2x 3/4″ NPT
• 3x 3/4″ NPT
• 1x 3/4″ NPT and 1x 1/2″ NPT Hub for Explosion-Proof Solenoid Valve

Shaft Types

• Standard NAMUR
• Low Profile NAMUR
• Standard Shaft 0.25″ Flats

Mechanical Switches

• Mechanical SPDT

Lead Legnth

• 36″ standard
• Longer legnths availiable

Analog Output

• 4-20mA Transmitter
• 1k ohm High Linearity Potentiometer
• 10k ohm High Linearity Potentiometer

Proximity Switches

• Tungsten TTL Hermetically Sealed Proximity Switches
• Rhodium TTL Hermetically Sealed Proximity Switches

DPDT Switches

• DPDT Mechanical Switches

Inductive Sensors

• Inductive Proximity
• NAMUR Intrinsically Safe Sensors

Visual Indicators

• Black/Yellow
• Flat Cover- No visual

• Red Blue or Green/White
• Others Available

• ‘O’,’T’,’F’,’S’ Flow Path

• 0-100% Digital

Misc

Weight

• 2 kg/each

Warranty

• 12 Months

Intelligent Part Number System – Specify Your Sentinel VPT

AMYB-5120
1234-5678
1 - Series6 - Switch Type
SentinelAMechanical
2 - CoverCherry SPDT - 15A1
With MoniteurMPrism Gold SPDT - 1A3
Flat CoverFITW DPDT - 10A4
3 - MoniteurNon-Contact (Proximity)
No IndicatorNTungsten TTL SPDT- 3A2
Black / YellowYRhodium TTL SPDT - 1AT
3-way path OOGO Leverless Limit Switches SPDT 4A5
3-way path TTInductive Sensors
3-way path FFP&F NJ2 -V3 (NAMUR)8
4-way path SSP&F NBB3-V3-Z4K
180 degree T1P&F NBB2-V3-USKA
Green / WhiteG7 - Switch Quantity
Red / WhiteR1-61-6
Blue / WhiteB8 - Conduit
Green / RedA(2) F 3/4" NPT0
Red / GreenC(2) F 3/4" + (1) F 1/2" NPT6
4 - Bearing(3) F 3/4" NPT5
BronzeB(1) F 3/4 " + (1) M 1/2" NPT8
303 StainlessSOptions - Add Suffix
5 - ShaftOutput
Standard 303 SS1Current 4-20 mA420
Standard 316 SS3Resistive 0-1000 ohm1K
NAMUR 303 SS5Other
NAMUR 316 SS712 Terminal Points-12T
LONG NAMUR 303 SSE16 Terminal Points-16T

Features & Benefits of Moniteur’s Watchman VPT

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

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

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 (100 Watts Max). 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 50mA. 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

Moniteur’s Visual Indicator Options

Black / Yellow “Y”
Full Green / Full Red “A”
Full Red / Full Green “C”
0-100% Green/Red “P”
Blue / White “B”
Green / White “G”
Red / White “R”
0-100% Red/Green “Q”
3 Way Path “O”
3 Way Path “T”
3 Way Path “F”
180 Deg T-Port “1”
120 Deg PIG “3”
4 Way Path “S”
135 Deg Diverter “4”
180 Deg L-Port OCOC “5”
180 Deg L-Port OOCC “6”

Click Here for Custom Indicateurs – Designed to Your Specifications

Features & Benefits of Moniteur’s Watchman VPT

Clear Ektar cover

offers excellent chemical resistance and strength

Indicator shaft is secured to the housing with

Moniteur’s engineered Loc-Ring Cam and Shaft Retention System, ensuring sensing accuracy and a multi-million cycle life.

“Flat cover” version available

without indicator is a cost effective option where visual indication is not required.

Environmentally sealed indicator

on the top of the unit prevents fogging or entry of contaminants. The indicator has a rated minimum life of 1,000,000 cycles.
Moniteur has indicators still in service with over 9 million cycles behind them!

Internal Switches and terminal block

are labeled for easier installation.

Optional thermoplastic quick-mount bracket

for NAMUR actuators stands up to corrosive environments.

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 configurations below.

Available with Moniteur’s wide variety of switches and sensors

for today’s advanced control systems.
Our switch selection guide is listed here.

PDF Specification Sheets for Common Items

Downloads
AMYB-1120/5120/E120
AMYB-1220/5220/E220
AMYB-1T20/5T20/ET20
AMYB-1140/5140/E140
AMYB-1240/5240/E240
AMYB-1T40/5T40/ET40

Downloads
AMYB-1160/5160/E160
AMYB-1260/5260/E260
AMYB-1T60/5T60/ET60
AMYB-1420/5420/E420
AFNB-1120/5120/E120
AMYB-1820/5820/E820

Downloads
AMYB-1440/5440/E440
AMYB-1840/5840/E840
AMYB-1120/5120/E120-420
AMYB-1520/5520/E520
AMYB-1128/5128/E128

These items are typically available for quick delivery.
Contact us for spec sheets covering configurations not shown here – we’ll gladly make them for you.
Specifications

Materials

Enclosure

• Die Cast Aluminum

Bearing

• Bronze
• 303 Stainless Steel

Shaft

• 303 Stainless Steel
• 316 Stainless Steel

Fasteners

• 316 and 18-8 Stainless Steel

Shaft Loc-Ring

• Stainless Steel

O-Rings

• Buna-N
• Viton

Indicator Cover

• Ektar Copolyester

Cams and Splines

• Acetal

Options

Conduit Entries

• 2x 3/4″ NPT
• 3x 3/4″ NPT
• 1x 3/4″ NPT and 1x 1/2″ NPT Hub for Explosion-Proof Solenoid Valve

Shaft Types

• Standard NAMUR
• Low Profile NAMUR
• Standard Shaft 0.25″ Flats

Mechanical Switches

• Mechanical SPDT

Lead Legnth

• 36″ standard
• Longer legnths availiable

Analog Output

• 4-20mA Transmitter
• 1k ohm High Linearity Potentiometer
• 10k ohm High Linearity Potentiometer

Proximity Switches

• Tungsten TTL Hermetically Sealed Proximity Switches
• Rhodium TTL Hermetically Sealed Proximity Switches

DPDT Switches

• DPDT Mechanical Switches

Inductive Sensors

• Inductive Proximity
• NAMUR Intrinsically Safe Sensors

Visual Indicators

• Black/Yellow
• Flat Cover- No visual

• Red Blue or Green/White
• Others Available

• ‘O’,’T’,’F’,’S’ Flow Path

• 0-100% Digital

Misc

Weight

• 2 kg/each

Warranty

• 12 Months

Part Numbers

Intelligent Part Number System – Specify Your Sentinel VPT

AMYB-5120
1234-5678
1 - Series6 - Switch Type
SentinelAMechanical
2 - CoverCherry SPDT - 15A1
With MoniteurMPrism Gold SPDT - 1A3
Flat CoverFITW DPDT - 10A4
3 - MoniteurNon-Contact (Proximity)
No IndicatorNTungsten TTL SPDT- 3A2
Black / YellowYRhodium TTL SPDT - 1AT
3-way path OOGO Leverless Limit Switches SPDT 4A5
3-way path TTInductive Sensors
3-way path FFP&F NJ2 -V3 (NAMUR)8
4-way path SSP&F NBB3-V3-Z4K
180 degree T1P&F NBB2-V3-USKA
Green / WhiteG7 - Switch Quantity
Red / WhiteR1-61-6
Blue / WhiteB8 - Conduit
Green / RedA(2) F 3/4" NPT0
Red / GreenC(2) F 3/4" + (1) F 1/2" NPT6
4 - Bearing(3) F 3/4" NPT5
BronzeB(1) F 3/4 " + (1) M 1/2" NPT8
303 StainlessSOptions - Add Suffix
5 - ShaftOutput
Standard 303 SS1Current 4-20 mA420
Standard 316 SS3Resistive 0-1000 ohm1K
NAMUR 303 SS5Other
NAMUR 316 SS712 Terminal Points-12T
LONG NAMUR 303 SSE16 Terminal Points-16T
Switches/Sensors

Features & Benefits of Moniteur’s Watchman VPT

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

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

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 (100 Watts Max). 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 50mA. 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

Visual Indicator

Moniteur’s Visual Indicator Options

Black / Yellow “Y”
Full Green / Full Red “A”
Full Red / Full Green “C”
0-100% Green/Red “P”
Blue / White “B”
Green / White “G”
Red / White “R”
0-100% Red/Green “Q”
3 Way Path “O”
3 Way Path “T”
3 Way Path “F”
180 Deg T-Port “1”
120 Deg PIG “3”
4 Way Path “S”
135 Deg Diverter “4”
180 Deg L-Port OCOC “5”
180 Deg L-Port OOCC “6”

Click Here for Custom Indicateurs – Designed to Your Specifications

Features

Features & Benefits of Moniteur’s Watchman VPT

Clear Ektar cover

offers excellent chemical resistance and strength

Indicator shaft is secured to the housing with

Moniteur’s engineered Loc-Ring Cam and Shaft Retention System, ensuring sensing accuracy and a multi-million cycle life.

“Flat cover” version available

without indicator is a cost effective option where visual indication is not required.

Environmentally sealed indicator

on the top of the unit prevents fogging or entry of contaminants. The indicator has a rated minimum life of 1,000,000 cycles.
Moniteur has indicators still in service with over 9 million cycles behind them!

Internal Switches and terminal block

are labeled for easier installation.

Optional thermoplastic quick-mount bracket

for NAMUR actuators stands up to corrosive environments.

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 configurations below.

Available with Moniteur’s wide variety of switches and sensors

for today’s advanced control systems.
Our switch selection guide is listed here.

Documents

PDF Specification Sheets for Common Items

Downloads
AMYB-1120/5120/E120
AMYB-1220/5220/E220
AMYB-1T20/5T20/ET20
AMYB-1140/5140/E140
AMYB-1240/5240/E240
AMYB-1T40/5T40/ET40

Downloads
AMYB-1160/5160/E160
AMYB-1260/5260/E260
AMYB-1T60/5T60/ET60
AMYB-1420/5420/E420
AFNB-1120/5120/E120
AMYB-1820/5820/E820

Downloads
AMYB-1440/5440/E440
AMYB-1840/5840/E840
AMYB-1120/5120/E120-420
AMYB-1520/5520/E520
AMYB-1128/5128/E128

These items are typically available for quick delivery.
Contact us for spec sheets covering configurations not shown here – we’ll gladly make them for you.
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