AMYB-5120
Sentinel VPT for Hazardous Areas – Explosion-Proof NEMA 4, 4X, 7 & 9
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.
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
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
| 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 | GO Leverless Limit Switches SPDT 4A | 5 |
| 3-way path T | T | Inductive Sensors | |
| 3-way path F | F | P&F NJ2 -V3 (NAMUR) | 8 |
| 4-way path S | S | P&F NBB3-V3-Z4 | K |
| 180 degree T | 1 | P&F NBB2-V3-US | KA |
| Green / White | G | 7 - Switch Quantity | |
| Red / White | R | 1-6 | 1-6 |
| Blue / White | B | 8 - Conduit | |
| Green / Red | A | (2) F 3/4" NPT | 0 |
| Red / Green | C | (2) F 3/4" + (1) F 1/2" NPT | 6 |
| 4 - Bearing | (3) F 3/4" NPT | 5 | |
| Bronze | B | (1) F 3/4 " + (1) M 1/2" NPT | 8 |
| 303 Stainless | S | Options - Add Suffix | |
| 5 - Shaft | Output | ||
| Standard 303 SS | 1 | Current 4-20 mA | 420 |
| Standard 316 SS | 3 | Resistive 0-1000 ohm | 1K |
| NAMUR 303 SS | 5 | Other | |
| NAMUR 316 SS | 7 | 12 Terminal Points | -12T |
| LONG NAMUR 303 SS | E | 16 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”
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
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 SteelShaft• 303 Stainless Steel
• 316 Stainless SteelFasteners• 316 and 18-8 Stainless Steel
Shaft Loc-Ring• Stainless Steel
O-Rings• Buna-N
• VitonIndicator 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 ValveShaft Types• Standard NAMUR
• Low Profile NAMUR
• Standard Shaft 0.25″ FlatsMechanical Switches• Mechanical SPDT
Lead Legnth• 36″ standard
• Longer legnths availiableAnalog Output• 4-20mA Transmitter
• 1k ohm High Linearity Potentiometer
• 10k ohm High Linearity PotentiometerProximity Switches• Tungsten TTL Hermetically Sealed Proximity Switches
• Rhodium TTL Hermetically Sealed Proximity SwitchesDPDT Switches• DPDT Mechanical Switches
Inductive Sensors• Inductive Proximity
• NAMUR Intrinsically Safe SensorsVisual 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
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 GO Leverless Limit Switches SPDT 4A 5 3-way path T T Inductive Sensors 3-way path F F P&F NJ2 -V3 (NAMUR) 8 4-way path S S P&F NBB3-V3-Z4 K 180 degree T 1 P&F NBB2-V3-US KA Green / White G 7 - Switch Quantity Red / White R 1-6 1-6 Blue / White B 8 - Conduit Green / Red A (2) F 3/4" NPT 0 Red / Green C (2) F 3/4" + (1) F 1/2" NPT 6 4 - Bearing (3) F 3/4" NPT 5 Bronze B (1) F 3/4 " + (1) M 1/2" NPT 8 303 Stainless S Options - Add Suffix 5 - Shaft Output Standard 303 SS 1 Current 4-20 mA 420 Standard 316 SS 3 Resistive 0-1000 ohm 1K NAMUR 303 SS 5 Other NAMUR 316 SS 7 12 Terminal Points -12T LONG NAMUR 303 SS E 16 Terminal Points -16T - + Switches/Sensors
-
Features & Benefits of Moniteur’s Watchman VPT
Mechanical SPDT and DPDT SwitchesThe 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 SensorsA 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) SwitchesThese 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 PotentiometersCurrent 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” - + Features
-
Features & Benefits of Moniteur’s Watchman VPT
Clear Ektar coveroffers excellent chemical resistance and strength
Indicator shaft is secured to the housing withMoniteur’s engineered Loc-Ring Cam and Shaft Retention System, ensuring sensing accuracy and a multi-million cycle life.
“Flat cover” version availablewithout indicator is a cost effective option where visual indication is not required.
Environmentally sealed indicatoron 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 blockare labeled for easier installation.
Optional thermoplastic quick-mount bracketfor NAMUR actuators stands up to corrosive environments.
Indicator is 100% adjustableto any valve or actuator.
The industry’s only “true” visual valve position indicatoravailable 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 sensorsfor today’s advanced control systems.
Our switch selection guide is listed here. - + Documents
-
PDF Specification Sheets for Common Items
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.