Saunders® I-VUE



The Saunders® I-VUE is an intelligent valve sensor designed specifically for aseptic diaphragm valve applications in the Life Science industry. Compatible with Point-to-Point (P2P), AS-i, and DeviceNet control systems, the Saunders® I-VUE offers substantial benefi ts over standard switch controls.


  • Enhance Reliability and Accuracy with Saunders® I-VUE solid state continuous sensing technology that provides precise position readings for the entire valve range from 0.25” to 4.00” (DN8 to DN100).
  • Simplify Installation by utilizing automated valve calibration without opening the IP67 rated polycarbonate sensor enclosure, reducing set up times to 3 minutes or less.
  • Lower Maintenance Costs by applying factory or user defined device settings to monitor valve cycle count and end point tolerance limits, preventing false alarms and unnecessary diaphragm replacement.

FM Approved Label









Features and Benefits


With fully potted solid state electronics to protect against moisture and vibration, and no contacting parts to fail, the Saunders® I-VUE is built to provide many years of accurate valve position sensing. The Saunders® I-VUE advanced electro-magnetic sensing technology provides accuracy of less than 0.2mm (0.008”) and is designed to be used on valves from 0.25” – 4.00” (DN8-DN100) with reliable, repeatable results. Unlike conventional end point switches, thanks to the Saunders® I-VUE continuous sensing, valve position is always known throughout the range of travel, allowing more accurate control even with variable process conditions.

The Saunders® I-VUE sealed IP67 and NEMA 4X rated polymer casing is compact, rugged, and does not require any dismantling when commissioning the valve. When fi tted with the high performance integral solenoid valve, open and closed positions can be set via the network control system or at the unit in either manual or self-calibration modes in under 3 minutes, dramatically reducing complexity and cost even in hard to reach installations.

The Saunders® I-VUE has a unique LED smart window display to assist in setting and programming the sensor and communicating alarms. Diaphragm management and general maintenance is vastly improved as the Saunders® I-VUE can be programmed either by date or by operation cycle count, preempting unnecessary diaphragm replacement. Programmable alarms are in place for easy monitoring of valve and process status.  


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Frequently Asked Questions


What is the Saunders I-VUE?

The Saunders I-VUE is a compact, intelligent valve sensor that solves problems ordinarily afflicting valve feedback for aseptic diaphragm valves. The Saunders I-VUE has a ring of highly visible green and red LEDs to indicate valve position, supplemented by a “top hat” style physical indicator. The Saunders I-VUE also features a unique Smart Window LED display, and is available with 24VDC Point to Point, AS-I and DeviceNet feedback.


What are some of the problems with conventional switches?

Previous end point switch technology has not worked reliably with diaphragm valves. One of the key issues is the ability to respond to the very short stroke length of small valves – less than 1/4” on 1/2” (<6.4mm on DN15 valves) valves, and less than 1/8” on 1/4” (<3.2mm on DN8 valves) valves. Conventional mechanical switches and proximity sensors in particular cannot reliably detect such small travel (stroke length).


How does Saunders I-VUE solve this problem?

Saunders I-VUE uses very accurate, continuous sensing technology that can detect travel of less than 0.2mm (0.008”). With I-VUE the (precise open/close) position of these very small valves can be reliably and accurately sensed and communicated.


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Are there other problems?

Most biopharm valves are deployed in process conditions that can substantially vary in intensity and frequency of the changes. As an example, it would not be unusual to encounter a process at 40 PSI, CIP at 100 PSI, SIP at 28 PSI, followed by vacuum. Spring close actuators depend on a combination of air supply and line pressure assist to overcome the spring pressure. This means that valves may not open fully when line assist is low and switches do not indicate “open.” This is a very common problem, and even more so with spring-to-open valves.


How does Saunders I-VUE solve this problem?

Saunders I-VUE can be programmed to increase the set point tolerance in the open position to allow for varying line pressure or for varying operating air supply.


Are there further issues?

Yes. Most current switches require that the enclosure be opened to set the switch. This is time consuming and can lead to improper re-assembly or loss of seal that can result in moisture entering the enclosure, potentially causing damage to electrical or electronic components.


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How does Saunders I-VUE solve this problem?

Saunders I-VUE can be set using a magnetic key without removing the cover. On AS-I or DeviceNet versions, the Saunders I-VUE sensor can also be set from the control system.


How does the magnetic key work?

Saunders I-VUE has three magnetic “buttons”: N1, S2 and N3. The magnetic key has Black N and Green S sides; the N side operates the N1 and N3 buttons and the S side operates the S2 button.


How is the Saunders I-VUE calibrated?

Set up and calibration is an easy process with Saunders I-VUE with integral solenoid. The black N side of the magnetic key is placed next to the N3 button, a red LED above the button lights up, and after three seconds, the Smart Window display will read “Sure”. The operator confirms this using the green S side of the key against the S2 button. Then the actuator will stroke three times, and Saunders I-VUE will calculate travel and set both open and closed points. The Saunders I-VUE can also be calibrated and programmed from the control system when part of an AS-I or DeviceNet network.


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How about setting Saunders I-VUE when a remote solenoid valve is used?

When a remote solenoid valve is used, the N black side of the magnetic key is placed against the N3 button; this brings the operator directly into the calibration menu, the Smart Window display will read “Sure” and the operator confirms this using the green S side of the key against the S2 button.
If the valve is not in the closed position, the remote solenoid must then be directed to close the valve. The Smart Window will read “LL” - use the green side of the magnetic key against the S2 button to confirm, and the closed set point will be specified. Then complete the process by opening the valve via the remote solenoid and confirm settings using the S2 key. When the window displays “HL”, the open set point has been defined.


Is there more to calibrating/operating the Saunders I-VUE?

This is all that is required for basic operation of the Saunders I-VUE. The Saunders I-VUE is delivered with standard operation parameters and diagnostics pre-programmed. This includes a 20% set point tolerance in the open position, a solenoid coil alarm, an internal temperature alarm, a lifetime cycle counter, out of “travel” (normal range of stroke) alarm, an energy saving mode, and address alarms (networking options).


What if I want to change these factory settings?

The Saunders I-VUE is easily programmed using the magnetic buttons and the Smart Window display. The S green side of the magnetic key is brought close to the S2 button. The red LED will light up and the display will read “CONFIG” and Saunders I-VUE will enter its programming mode. The magnetic key is used to scroll through a series of menu options and the user can customize the Saunders I-VUE to meet particular application needs. The Saunders I-VUE sensor can also be programmed from the control system (if part of an AS-I or DeviceNet network). And the Saunders I-VUE can be password protected to control access.


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Is it easy to restore the factory settings?

Yes. Simply access the menu options and choose: restore factory settings.


What are the main uses of the Smart Window?

The display helps during configuration. During normal operation the Smart Window displays valve position, number of valve cycles, lifetime counter, or number of operating days. It also shows 5 configured alarms, and if a problem occurs, the display will show codes identifying the problem.


Is the Saunders I-VUE easy to learn (to operate)?

Saunders I-VUE has a flow chart that guides the user through set up and also defines alarm codes. Programming the Saunders I-VUE is as easy as using a television remote or a smart phone.


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How are alarms communicated?

The Saunders I-VUE Smart Window will display alarms and error codes on the switch, and when part of a network, Saunders I-VUE will send alarm codes directly to the control system as well.


Why have both LEDs and physical position indication?

LEDs offer bright position indication but are useless in the event of loss of power. Physical position indication works even after power loss; this is a key feature - knowing the current valve position can help prevent safety risks when electrical systems are down.


How does the Saunders I-VUE detect valve position?

Saunders I-VUE uses advanced EMR (electro-magnetic radiation) position technology to determine valve position. Five coils sense a magnetic target which is fixed to the output spindle of the actuator and sends data to a high speed processor that calculates position. This technology is non-contacting and much more advanced than analog potentiometers commonly used in valve sensors. Potentiometers are contacting, are susceptible to wear, and are not as accurate or reliable as the technology used in the solid state Saunders I-VUE.


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What valve sizes will the Saunders I-VUE fit and are adapters required?

Saunders I-VUE will work with valves sizes 0.25”-4.00” (DN8-DN100). Saunders I-VUE mounts directly on the Saunders S360 actuator. Adapters are used on the Saunders EC and ECX.


Is the Saunders I-VUE available with an integral solenoid valve?

Yes, an integral solenoid valve is available. The solenoid has a high 0.9 Cv, to provide quick operation of valves to 4.00” and includes a manual override as standard. The use of the integral solenoid has many advantages, including: one man calibration (either at sensor or, if part of a network, from the control panel), reduction in cabling, and lower installation costs on networking systems. Savings can be considerable, especially when factored over the life of the installation due to reduced man hours and downtime to recalibrate after first installation and after diaphragm change out.


Is it possible to activate the solenoid valve during setup or an emergency?

Yes. There are 2 options: position the black side of the magnetic key over the N1 button for 3 seconds, to active and deactivate, or for sensors with integral solenoid, keep the manual override button pushed (or push and turn to lock).


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What is the construction of the Saunders I-VUE?

The Saunders I-VUE housing is made from high performance thermoplastic and is corrosion resistant and suitable for typical wash-down chemicals. The electronics are resin encapsulated (potted) to reduce risk of damage due to vibration, shock, moisture, or heat.


What is the electrical rating of the Saunders I-VUE?

The Saunders I-VUE is rated NEMA 4X, IP66, IP67 and CE compliant. UL and Class I Division 2 (Zone 2) - non-incendive approval for hazardous applications will be available soon.


What electrical connection is used with Saunders I-VUE?

The Saunders I-VUE uses Micro (M12) 4 or 5 pins or Mini (7/8”) 5 pin connectors depending on type of feedback utilized as standard. Available options include cable with cable gland on a 0.50” NPT and cable gland.


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What technical information is available about Saunders I-VUE?

Technical Data Sheet, Configuration Flow Chart, and O&M Manuals are available for the Saunders I-VUE sensor.


Can the Saunders I-VUE be used on other valves besides Saunders?

We expect demand to replace switches on valves made by other manufacturers and have plans for adapters to allow retrofit on competing valves.


How does pricing compare to other systems?

Saunders I-VUE is priced competitively with other switches that do not have the reliability and accuracy or the advanced features of the Saunders I-VUE. Saunders I-VUE represents true value to the installer and to the owner.


Why choose the Saunders I-VUE?

Saunders I-VUE is an ideal sensor for sanitary diaphragm valves providing accurate and reliable feedback in both P2P and networking control systems. Saunders I-VUE overcomes difficult problems found with previous sensor types for valve feedback relating to sanitary diaphragms. Its key features are: accurate sensing for small valves, accurate readings under varying process conditions and/or low or changing air supply, and the ability to set the switch without opening the enclosure. The Saunders I-VUE has a suite of built-in standard and programmable features and alarms. These advanced features can reduce risk in critical applications and increase productivity and reduce downtime.



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Programming the I-VUE


 Training Materials
File Type
File Size


 Programming the Saunders® I-VUEMicrosoft PowerPoint Show (.ppsx)
56 MB
 Programming the Saunders® I-VUE (without videos)Microsoft PowerPoint Show (.ppsx)
5 MB



 Training Materials
File Type
File Size


Saunders® I-VUE EDS File For Use with DeviceNet Systems EDS (Electronic Data Shee) File (.eds) 2.83 KB
 Previous Versions
Saunders® I-VUE EDS File For Use with DeviceNet Systems 
EDS (Electronic Data Sheet) File (.eds)
2.65 KB
Saunders® I-VUE EDS File For Use with DeviceNet SystemsEDS (Electronic Data Sheet) File (.eds)
2.65 KB


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Operating Instructions


Saunders® I-VUE EZ-SET Feature


The Saunders® I-VUE is ready to install and operate as delivered. The EZ-SET feature allows quick setting of the sensor without the need to open the enclosure. The EZ-SET feature works with P2P and networking options fitted with integral solenoid. Simply hold the black N side of the magnetic key against the N3 magnetic button for three seconds, confirm the action by touching the green S side of the magnetic key against the S2 button, and the valve will stroke three times and set open and closed positions.

When Saunders® I-VUE is a part of a network using AS-i or DeviceNet, the sensor can also be set from the control station. The Saunders® I-VUE can also be easily set when a remote solenoid is employed.

Standard settings and alarms can be custom programmed at the sensor using the magnetic key and buttons. These parameters can be programed at the control station on units that are DeviceNet or AS-i enabled.


The Saunders® I-VUE will Default to Factory Settings Unless Custom Programmed. These Factory Settings Include


Tolerances Factory Setting
Open Position H 20%
Close Position L 20%
Alarms Factory Setting
Cycle Time OFF
Partial Counter OFF
Worked Days OFF
Date OFF
Solenoid ON
Others Factory Setting
Display PCot (Partial Counter)
Sleep Mode OFF
Self-Calibration 3 Cycles
Password NOT SET
Total Counter Not Affected by Factory Reset
DN Address 63
DN Baude Rate 125


Saunders® I-VUE Fast Key Access

Fast Keys allow easy, single-step operation of common functions. This includes Forced Solenoid, Self-Calibration, (EZ-SET), Demo Mode, and also Reset of Password.


Fast Key Access
FunctionButtonHold TimeMode Display Message
Forced SolenoidN13 secondsRunsaunders-ivue-sol-forced
Self-Calibration (auto setup)N33 seconds (6 seconds if password reset)Runsaunders-ivue-self-calibration
Demo Mode (2 keys required)N1 and N33 secondsRunsaunders-ivue-demo-mode
Password ResetS2
N1 and N3
3 seconds
3 seconds


Programming the Saunders® I-VUE

saunders-ivue-operating-instructionsThe Saunders® I-VUE can be programmed to confi gure a range of features and alarms based on specifi c system or application requirements. This is accomplished via the magnetic key and buttons, while observing the selections on the Smart Window Display.

The S2 Button accesses (“drills down”) a selection in the programming ladder (nested menu of functions). The N3 Button moves the selection "cursor” down the ladder, and the N1 Button moves it up the ladder, until the desired function is reached. When the desired parameter (function) is reached, the S2 Button
accesses that option, while the N1 and N3 Buttons will again scroll through the options. Pressing the S2 Button confirms the selection.

Programming and alarm features can be deployed at the user’s option, and they vary with the requirements pertaining to solenoid type, mode of feedback, and networking protocol. The Saunders® I-VUE IOM Manual provides easy-to-follow steps for all functions, and includes a flow chart as a visual aid for programming the sensor.


Typical Programming Logic



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Features Overview



  1. Visual Position Indicator shows valve position even in the event of power loss. 
  2. Ring of bright red and green LEDs display valve position.
  3. Illuminated Smart Window display assists in programming the sensor.
  4. Robust all-polymer enclosure is rated NEMA 4X, IP67.
  5. Magnetic Buttons allow calibration and programming of Saunders® I-VUE without opening enclosure.
  6. Optional 24VDC integral solenoid valve.
  7. Saunders® I-VUE direct mounts on Saunders® S360 actuator. Compact adapters available for Saunders® EC and ECX actuators.



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Technical Details



Saunders® I-VUE Technical Details

saunders-ivue-technical-detailsThe Saunders® I-VUE has the ability to set end point tolerance up to 40% of travel. This feature allows reliable feedback under variable process conditions and/or fl uctuating air supply. End point limit switches cannot accommodate these variable conditions without false position indications resulting in unnecessary alarms.

The solid state sensing technology used in the Saunders® I-VUE provides sensitivity of .2mm (0.008”). This performance ensures accurate performance on smallest valves. The Saunders® I-VUE Sensor is available as a point to point sensor or as a sensor integrated into a network using AS-i or DeviceNet communication.



Saunders® I-VUE Optional Integral Solenoid

Body: Anodized Aluminum or Stainless Steel
Type: Piloted, 3/2
Voltage: 24VDC 0.6W
Cv: 0.9 (0,8 Kv)
Flow Rate: 400 NI/m
Air Connections: 1/8” BSP
Manual Override: Standard


The Saunders® I-VUE Complies with the Following International Codes and Standards

Approvals P2P AS-i DeviceNet


Saunders® I-VUE Sensor Technical Details

The Saunders® I-VUE has been engineered to compensate for the behavior of diaphragm valves under multiple processing conditions including: process, CIP and SIP, and varying operating air supply.


Valve Size Range:
0.25”–4.00” (DN8-DN100)saunders-ivue-technical-details-2 
Temperature Range:

0°C to + 70°C
Sensing Technology:

Continuous sensing via five
electro-magnetic coils

Composite ferrous magnet

Less than 0.2mm (0.008”)
Position Indication:

Green LEDs - Open
Red LEDs - Closed
Physical position indicator
Feedback Options:

AS-i version 2.0 standard address
AS-i version 2.1 extended address
AS-i version 3.0 extended address (optional)
Local Programming:

Via magnetic key
Remote Programming:

At control panel
(Networking versions only)
Standard Connection:
P2P with SOV: M12 5 pin
P2P without SOV: M12 4pin
AS-i: M12 4 Pin
DeviceNet: Mini 5 pin



Optional connections available include: pig tail with cable gland



Saunders® I-VUE Construction


Connection Box:
Module Housing:Polycarbonate
Buna N
Stainless steel
Stainless steel
Composite ferrous magnet


Saunders® I-VUE Power Consumption


TypeP2P - 24 VDCAS-i - 31.5 VDC DeviceNet - 24 VDC
I-VUE (solenoid OFF)< 48 mA or 1.2 W< 54 mA or 1.5 W< 48 mA or 1.2 W
I-VUE (solenoid ON)< 64mA or 1.5 W< 64 mA or 2.0W< 64mA or 1.5 W


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Literature Documents


Specifications and Literature
Saunders-VUE Intelligent Sensing Technology Brochure (North America)
Saunders-VUE Intelligent Sensing Technology Brochure (EN A4)
Saunders® HC4 I-VUE Intelligent Sensing Technology - Brochure (Global)
Saunders® HC4 I-VUE Technologie de détection intelligente - Brochure (FR A4)
Saunders® HC4 I-VUE AS-Interface Intelligent Sensing Technology - IOM (EN A4)
Saunders® HC4 I-VUE AS-Interface Intelligent Sensing Technology - IOM (EN LT)
Saunders® HC4 I-VUE DeviceNet Intelligent Sensing Technology - IOM (EN A4)
Saunders® HC4 I-VUE DeviceNet Intelligent Sensing Technology - IOM (EN LT)
Saunders® HC4 I-VUE Point-to-Point (P2P) Intelligent Sensing Technology - IOM (EN A4)
Saunders® HC4 I-VUE Point-to-Point (P2P) Intelligent Sensing Technology - IOM (EN LT)
S360 with I-VUE Installation
EC with I-VUE Installation
ECX with I-VUE Installation
saunders hc4 ivue

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