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Kayden CLASSIC 814 Thermal Flow, Level & Interface Switch
Brand: Kayden Instruments
The Kayden CLASSIC 814 Flow, Level, Interface Switch & Transmitter features a precision-welded, highly accurate stainless steel sensor.
Ideal for liquids, gases, and slurries in a clean or dirty process.
The CLASSIC 814 Retractable Packing Gland is available with a Raised Face or RTJ flange in a wide range of flange sizes and ANSI ratings for low- and medium-pressure applications.
All Kayden models feature a rugged flameproof enclosure with blind or lens covers available.
- Process Connection
- Retractable Packing Gland
- Raised Face or RTJ Flange
- Adjustable Set Point Range
- 0-254 feet/s
- 0-77 meters/s
- Insertion 'U' Length
- inch 2.5" to 120" in 1/2" increments
- cm 6.4 to 305 in 1 cm increments
- Input Power
- 12-24 Vdc & 115-230 Vac, 50-60 Hz
- Operating Pressure - Maximum
- Dependent on Flange Rating
- Temperature Range - Sensor
- -40° C to 160° C
- -40° F to 320° F
- Local Enclosure
- Aluminum Flameproof
- 1" Female NPT Conduit Connection
- Local Enclosure Cover
- Blind or Glass Lens Flameproof
- Materials of Construction - Sensor and Flange
- 316/316L Stainless Steel
- Outputs/Communications
- Two Independent Relays - SPDT
- 4-20 mA
- Modbus
- Approvals
- CSA
- Single Seal
- NACE
- NEMA 4, 4X, 6P, IP65/67
1 - 12 of 23 Part Numbers
814-RAA-131AT-I0025-C1B0A-1E
- Process Connection:
- Flanged Retractable Packing Gland Raised Face
- 1-1/2" MNPT
- ANSI: 150
- Flange Materials: 316 Stainless Steel
- Adjustable Set Point Range: 0-254 feet/s, 0-77 meters/s
- Insertion 'U' Length: 2.5", 6.35 cm
- Input Power: 12-24 VDC & 115-230 VAC, 50-60 Hz
- Operating Pressure (Maximum): 3480 psi, 24000 kPa, 240 bar
- Temperature Range (Sensor): -40°C to 160°C, -40°F to 320°F
- Local Enclosure: Aluminium Flameproof, 1" FNPT
- Cover: Flameproof Blind Cover
- Remote Electronics Enclosure and Cover: Not Required
- Wetted Materials:
- Standard: 316 Stainless Steel
- Outputs/Communications:
- Two Independent Relays (SPDT), 4-20 mA, Modbus
- UL, CSA, Single Seal, NACE, NEMA 4
814-RAA-131AT-I0150-C1B0A-1E
- Process Connection:
- Flanged Retractable Packing Gland Raised Face
- 1-1/2" MNPT
- ANSI: 150
- Flange Materials: 316 Stainless Steel
- Adjustable Set Point Range: 0-254 feet/s, 0-77 meters/s
- Insertion 'U' Length: 15", 38.1 cm
- Input Power: 12-24 VDC & 115-230 VAC, 50-60 Hz
- Operating Pressure (Maximum): 3480 psi, 24000 kPa, 240 bar
- Temperature Range (Sensor): -40°C to 160°C, -40°F to 320°F
- Local Enclosure: Aluminium Flameproof, 1" FNPT
- Cover: Flameproof Blind Cover
- Remote Electronics Enclosure and Cover: Not Required
- Wetted Materials:
- Standard: 316 Stainless Steel
- Outputs/Communications:
- Two Independent Relays (SPDT), 4-20 mA, Modbus
- UL, CSA, Single Seal, NACE, NEMA 4
814-RAA-131AT-I1200-C1B1B-1E
- Process Connection:
- Flanged Retractable Packing Gland Raised Face
- 1-1/2" MNPT
- ANSI: 150
- Flange Materials: 316 Stainless Steel
- Adjustable Set Point Range: 0-254 feet/s, 0-77 meters/s
- Insertion 'U' Length: 120", 304.8 cm
- Input Power: 12-24 VDC & 115-230 VAC, 50-60 Hz
- Operating Pressure (Maximum): 3480 psi, 24000 kPa, 240 bar
- Temperature Range (Sensor): -40°C to 160°C, -40°F to 320°F
- Local Enclosure: Aluminium Flameproof, 1" FNPT
- Cover: Flameproof Blind Cover
- Remote Electronics Enclosure and Cover: Flameproof Blind
- Wetted Materials:
- Standard: 316 Stainless Steel
- Outputs/Communications:
- Two Independent Relays (SPDT), 4-20 mA, Modbus
- UL, CSA, Single Seal, NACE, NEMA 4
814-RAA-131AX-I0150-C1B0A-9E
- Sensor Material - 316/316L Stainless Steel
- Flange Material - 316/316L Stainless Steel
- Process Connection Flange Type - Raised Face
- Flange Size & ANSI Rating - 1-1/2" 150#
- Retraction Assembly - Medium Pressure, 316 Stainless Steel (MWP 500 psi)
- Insertion 'U' Length - 15 Custom 'U' Length: Inches
- Cover for Local Enclosure - Blind Cover
- Remote Electronics Enclosure & Cover - Not Required
- Agency Approvals - FM
814-RAA-131AX-I0260-C1B0A-9E
814-RAA-131ET-I0140-C1G0A-1E
- Process Connection:
- Flanged Retractable Packing Gland Raised Face
- 1-1/2" MNPT
- ANIS: 150
- Flange Materials: Carbon Steel
- Adjustable Set Point Range: 0-254 feet/s, 0-77 meters/s
- Insertion 'U' Length: 14", 35.5 cm
- Input Power: 12-24 VDC & 115-230 VAC, 50-60 Hz
- Operating Pressure (Maximum): 3480 psi, 24000 kPa, 240 bar
- Temperature Range (Sensor): -40°C to 160°C, -40°F to 320°F
- Local Enclosure: Aluminium Flameproof, 1" FNPT
- Cover: Flameproof Glass Cover
- Remote Electronics Enclosure and Cover: Not Selected
- Wetted Materials:
- Standard: 316 Stainless Steel
- Outputs/Communications:
- Two Independent Relays (SPDT), 4-20 mA, Modbus
- UL, CSA, Single Seal, NACE, NEMA 4
814-RAA-141AJ-M2000-C1G0A-9E
- Process Connection:
- Flanged Retractable Packing Gland Raised Face
- 2" MNPT
- ANIS: 150
- Flange Materials: 316 Stainless Steel
- Adjustable Set Point Range: 0-254 feet/s, 0-77 meters/s
- Insertion 'U' Length: 78.7", 200 cm
- Input Power: 12-24 VDC & 115-230 VAC, 50-60 Hz
- Operating Pressure (Maximum): 3480 psi, 24000 kPa, 240 bar
- Temperature Range (Sensor): -40°C to 160°C, -40°F to 320°F
- Local Enclosure: Aluminium Flameproof, 1" FNPT
- Cover: Flameproof GlassCover
- Remote Electronics Enclosure and Cover: Not Selected
- Wetted Materials:
- Standard: 316 Stainless Steel
- Outputs/Communications:
- Two Independent Relays (SPDT), 4-20 mA, Modbus
- FM, NACE, NEMA 4
814-RAA-141AT-I0060-C1B0A-1E
- Process Connection:
- Flanged Retractable Packing Gland Raised Face
- 2" MNPT
- ANSI: 150
- Flange Materials: Stainless Steel
- Adjustable Set Point Range: 0-254 feet/s, 0-77 meters/s
- Insertion 'U' Length: 6", 5.01 cm
- Input Power: 12-24 VDC & 115-230 VAC, 50-60 Hz
- Operating Pressure (Maximum): 3480 psi, 24000 kPa, 240 bar
- Temperature Range (Sensor): -40°C to 160°C, -40°F to 320°F
- Local Enclosure: Aluminium Flameproof, 1" FNPT
- Cover: Flameproof Blind Cover
- Remote Electronics Enclosure and Cover: Not Required
- Wetted Materials:
- Standard: 316 Stainless Steel
- Outputs/Communications:
- Two Independent Relays (SPDT), 4-20 mA, Modbus
- UL, CSA, Single Seal, NACE, NEMA 4
814-RAA-141AT-I0160-C1B0A-1E
- Flanged Retractable Packing Gland Raised Face
- 2" MNPT
- ANSI: 150
- Standard: 316 Stainless Steel
- Two Independent Relays (SPDT), 4-20 mA, Modbus
814-RAA131AT-I0140-C1G0A1E
- Process Connection:
- Flanged Retractable Packing Gland Raised Face
- 1-1/2" MNPT
- ANSI: 150
- Flange Materials: 316 Stainless Steel
- Adjustable Set Point Range: 0-254 feet/s, 0-77 meters/s
- Insertion 'U' Length: 14", 35.5 cm
- Input Power: 12-24 VDC & 115-230 VAC, 50-60 Hz
- Operating Pressure (Maximum): 3480 psi, 24000 kPa, 240 bar
- Temperature Range (Sensor): -40°C to 160°C, -40°F to 320°F
- Local Enclosure: Aluminium Flameproof, 1" FNPT
- Cover: Flameproof Glass Lens Cover
- Remote Electronics Enclosure and Cover: Not Required
- Wetted Materials:
- Standard: 316 Stainless Steel
- Outputs/Communications:
- Two Independent Relays (SPDT), 4-20 mA, Modbus
- UL, CSA, Single Seal, NACE, NEMA 4
814-RAA131AT-I1200-C1B1A1E
- Process Connection:
- Flanged Retractable Packing Gland Raised Face
- 1-1/2" MNPT
- ANSI: 150
- Flange Materials: 316 Stainless Steel
- Adjustable Set Point Range: 0-254 feet/s, 0-77 meters/s
- Insertion 'U' Length: 120", 304.8 cm
- Input Power: 12-24 VDC & 115-230 VAC, 50-60 Hz
- Operating Pressure (Maximum): 3480 psi, 24000 kPa, 240 bar
- Temperature Range (Sensor): -40°C to 160°C, -40°F to 320°F
- Local Enclosure: Aluminium Flameproof, 1" FNPT
- Cover: Flameproof Blind Cover
- Remote Electronics Enclosure and Cover: Flameproof Blind
- Wetted Materials:
- Standard: 316 Stainless Steel
- Outputs/Communications:
- Two Independent Relays (SPDT), 4-20 mA, Modbus
- UL, CSA, Single Seal, NACE, NEMA 4
814-RAA131AT-M2700-C1B0A1E
- Process Connection:
- Flanged Retractable Packing Gland Raised Face
- 1-1/2" MNPT
- ANSI: 150
- Flange Materials: 316 Stainless Steel
- Adjustable Set Point Range: 0-254 feet/s, 0-77 meters/s
- Insertion 'U' Length: 270cm, (106.3")
- Input Power: 12-24 VDC & 115-230 VAC, 50-60 Hz
- Operating Pressure (Maximum): 3480 psi, 24000 kPa, 240 bar
- Temperature Range (Sensor): -40°C to 160°C, -40°F to 320°F
- Local Enclosure: Aluminium Flameproof, 1" FNPT
- Cover: Flameproof Blind Cover
- Remote Electronics Enclosure and Cover: Not Selected
- Wetted Materials:
- Standard: 316 Stainless Steel
- Outputs/Communications:
- Two Independent Relays (SPDT), 4-20 mA, Modbus
- UL, CSA, Single Seal, NACE, NEMA 4
1 - 12 of 23 Part Numbers
Specifications
Brand
Applications
- Flow
- Level
- Interface
Principle of Operation
- Thermal, Calorimetric
Insertion 'U' Length - Custom
- 6.4 cm to 305 cm (in 1 cm increments)
- 2.5” to 120” (in 1/2” increments)
Flange Type
- RF - Raised Face
- RTJ - Ring Typical Joint
Flange Class
- 150#
- 300#
- 600#
- 900#
Flange Size
- 1" DN 25
- 1-1/2" DN 40
- 2" DN 50
- 3" DN 80
- 4" DN 100
- 5" DN 125
- 6" DN 150
- 8" DN 200
- 10" DN 250
Flange Material
- 316 Stainless Steel
Wetted Materials
- 316/316L Stainless Steel
- Highly Saturated Nitrile (Pressure Seal-Sensor)
Sensor Construction
- All-Welded Construction
Process Connection Style
- Flanged Retractable
Retraction Assembly
- Low Pressure: 316/316L Stainless Steel (MWP 50 psi)
- Low Pressure with Security Chain, 316/316L Stainless Steel (MWP 125 psi)
- Medium Pressure: 316/316L Stainless Steel (MWP 500 psi)
Operating Pressure Maximum - Sensor
- Per Flange Rating, ASME B16.5
Operating Temperature - Sensor
- -40° to 160° C (-40° to 320° F)
Operating Temperature - Electronics
- -55° to 65° C (-67° to 149° F)
Switch Point Range
- Air & Gases: 0.25 to 200 sfps, 0.08 to 60 smps - Standard Condition 21° C (70° F) at 14.7 psi (1 Atm)
- Hydrocarbon-based Liquids: 0.01 - 5.0 fps, 0.003 - 1.50 mps
- Water-based Liquids: 0.01 - 3.00 fps, 0.003 - 0.9 mps
Response Time
- Approximately 0.5 to 30 seconds
Accuracy
- Flow Service: ± 1.0 % of Set Point Velocity over Operating Range of ± 28° C (± 50° F)
- Level Service: ± 0.64 cm (0.25”)
Switch Type
- 2 SPDT Sealed Relay Contacts Rated @ 4 Amps Resistive 230 Vac or 30 Vdc, Max.
Input Power
- 12-24 Vdc, 115-230 Vac, 50/60 Hz / Universal Power Input
- Power Consumption: Max.
Output
- 4-20 mA (Thermal Signal, Scaleable)
Communication
- Modbus RTU Communication-Alarms, Flow Status & Diagnostics
- RS-485 Using Kayden's Remote Control & Monitoring Software (RCMS) or other Modbus Compatible Software
Approvals & Certifications
- CSA
- CSA - Local (Sensor) Enclosure Flameproof: Class I, Div. 1, Groups B, C, D, Ex d IIB + H₂ AEx d IIB + H₂ (Class I, Zone 1, Group IIB + H₂) Temperature Code: T3 Enclosure Typical 4, IP55 Single Seal Approved Per ANSI/ISA 12.27.01-2003
- CSA - Remote Electronics Enclosure - Optional Flameproof: Class I, Groups B, C, D, Ex d IIB + H₂ AEx d IIB + H₂ (Class I, Zone 1, Groups IIB + H₂) Temperature Code: T3
- CRN - Canadian Registration Number - the Kayden Classic 814 does not have a CRN Number
Electronics - Standard Features
- 100 % Digital Design. Electronics are Environmentally Sealed
- 4-Adjustable Independent Switch Point Timers
- Automated Redundant Self-Test Diagnostics
- Display Panel Lock-Out*
- Easy Setup: No Mechanical Jumpers or Trim Pots
- Incrementally Adjustable Heater Power (5 % Steps) with Automatic Over-Range Protection
- Intelligent User Interface with Push-Button & Constant Display of Operation (Flow/Level)
- Start-Up Bypass Timer
- Temperature Compensation
- Temperature Mode*: Process Temperature may be Displayed/Graphed in Flow/Level Mode
- *Configurable only from the Kayden RCM Software
Remote Control & Monitoring Software
- Adjust Relay Modes
- Adjust Set Points 1 & 2
- Load or Save User Settings
- Lock or Unlock the Display Panel to Protect the Settings
- Many Other Adjustable Features
- Modify Heater Settings to Optimize Response Time
- Monitor Operating Status
- Operated Via a Personal Computer Locally or from a Remote Control Center
- Visualize the Actions of the Process Via the Graphical Display
Environmental Protection
- IP55
- NEMA 4 / IP55
Local Enclosure Conduit Connection
- 1” NPT Female Conduit Connection
Local Enclosure & Cover Material
- Copper-Free Aluminum (Does Not Exceed 0.4 % Copper)
Local Enclosure Cover
- Glass Lens Cover - Flameproof
- Blind Cover - Flameproof
- Buna-N O-Ring on Cover
Local Enclosure & Cover Finish
- Powder-Coated Polyester TGIC
Remote Electronics Enclosure Cover
- Glass Lens Cover - Flameproof
Remote Electronics Enclosure & Cover Finish
- Powder-Coated Polyester TGIC
Sensor, Probe Style
- Insertion
Storage Temperature
- Store in a clean & dry environment between -30° & 60° C (-22° & 140° F)
Flow
- Ammonia Storage
- Biogas Flow
- Catalysis Vessels
- Chemical Injection & Additive Flow Monitoring
- Chemical Reactors
- Chlor-alkali Processes
- Compressors
- Condensers
- Deionization Tanks
- Digester Gas Flow
- Distillation Columns
- Drain Line Flow
- Emergency Eye Wash & Shower Stations
- Fermentation Vessels
- Flare Gas Monitoring
- Flare Knock-out Drums
- Flow Monitoring & Verification
- Heat Exchangers
- Heat Recovery Steam Generator (HRSG) - Power & Utilities
- High Pressure Flows
- Leak Detection
- Lube Oil Systems
- Monitoring Purge Air Flow
- Natural Gas to Boilers
- Pumps
- Reboilers
- Refinery Flow Applications
- Relief Valve & Rupture Disk Flow Monitoring
- Remote Indication of Flow via Analog Output & Digital Communications
- Pump Protection - Dry Alarm
- Tank Blanketing
- Tank Overflow Protection
- Tanker Loading & Unloading
- Water & Wastewater
- Vaporizers
- Vent Monitoring
Level
- Biogas Dehydration
- Blending Operations
- Carbon Slurry Level
- Compressor Scrubber
- Compressor Waste Liquid
- Condensate Receiver Tanks
- Cooling Tower Basins
- Crude Desalting
- Crude Dehydration
- Deionization Tanks
- Digester Blow Tanks
- Free Water Knock-out Tanks - High, Low and Interface Level
- Geothermal - Degasser Tanks
- Geothermal - Steam & Brine Separators
- Leak Detection (Accumulation Reservoir)
- Lime Slurry Level
- Mixing & Blending Systems
- Oil Separators & Treaters - High, Low & Interface Level
- Production Fluid Storage
- Pulp Bleaching Towers
- Pulp Digesters
- Pulp Storage
- Pulp Washing Systems
- Sampler Systems
- Sand Separators
- Scrubber Vessels
- Storage Tanks
- Sumps - All Types of fluids: Water, Oil, etc.
- Surge Tanks
- Tank Overflow
- Turpentine Recovery
- Vapor & Liquid Separation
- Vapor Recovery
Interface
- Crude Desalting
- Interface Control in Separation Vessels
- Interface Detection
- Interface Control & Level Detection in Settling Vessels
- Liquid-Liquid Extraction - LLX
Media
- Liquids, Air & Gases
- Slurries
- Corrosive Liquids
Areas
- Flameproof, Hazardous & General-Purpose Areas
IDEAL PROCESS CONDITIONS FOR FLOW
Liquids
- Consistent Process Composition & Temperature
- Sufficient Straight Run Flow Profile (minimizes turbulence)
- Recommended Minimum of 5 Pipe Diameters from any Disturbance
Air & Gas
- Consistent Process Composition & Temperature
- Sufficient Straight Run Flow Profile (minimizes turbulence)
- Clean and Dry
Slurries
- Consistent Process Composition & Temperature
- Sufficient Straight Run Flow Profile (minimizes turbulence)
Emulsion
- Consistent Process Composition & Temperature
- Sufficient Straight Run Flow Profile (minimizes turbulence)
UNDESIRABLE PROCESS CONDITIONS FOR FLOW
Liquids
- Inconsistent Process Composition or Temperature
- Insufficient Straight Run
- Aerated Fluids
- Turbulence
Air & Gas
- Inconsistent Process Composition or Temperature
- Wet or Saturated Air & Gas
Slurries
- Inconsistent Process Composition or Temperature
- Insufficient Straight Run
- Aerated Fluids
- Turbulence
Emulsion
- Inconsistent Process Composition & Temperature
- Insufficient Straight Run
- Aerated Fluids
- Turbulence
Solids
- Dry granulated processes are NOT good candidates for thermal switches
Documentation
Data Sheets
Product Manuals
- Product Manual - Kayden CLASSIC 800 Flow to Velocity Quick Reference Guide pdf 6.2 MB
- Product Manual - Kayden CLASSIC 800 Modbus Registers pdf 116 KB
- Product Manual - Kayden CLASSIC 800 Quick Setup Guide v5.2 pdf 2.6 MB
- Product Manual - Kayden CLASSIC 800 Series, Nov 2022 pdf 17.6 MB
- Product Manual - Kayden CLASSIC 814/816 Installation Guide v1.8 pdf 1.3 MB
Application Considerations
Application Notes
- Application Note - Kayden 4-20mA Analog Output pdf 766 KB
- Application Note - Kayden Acid Level Detection pdf 1.4 MB
- Application Note - Kayden Fail Safe pdf 894 KB
- Application Note - Kayden High Level Detection Holding Tank pdf 996 KB
- Application Note - Kayden Monitoring Digester Flow pdf 831 KB
- Application Note - Kayden Oil Water Separation pdf 1.2 MB
- Application Note - Kayden Pulp and Paper Digester Tank pdf 1.1 MB
- Application Note - Kayden Pulp and Paper Skimmer Tank pdf 829 KB
- Application Note - Kayden Pump Monitoring and Protection pdf 1.0 MB
- Application Note - Kayden Pump Monitoring and Protection Remote pdf 1.2 MB
Catalogs
Certifications & Approvals
Outline Drawings
- Outline Dimension Drawing - Kayden CLASSIC 814 Local Enclosure Low Pressure (MWP 50 PSI) pdf 853 KB
- Outline Dimension Drawing - Kayden CLASSIC 814 Local Enclosure Low Pressure w/Chain (MWP 125 PSI) pdf 630 KB
- Outline Dimension Drawing - Kayden CLASSIC 814 Local Enclosure Medium Pressure (MWP 275 PSI) pdf 604 KB
- Outline Dimension Drawing - Kayden CLASSIC 814 Remote Enclosure Low Pressure (MWP 50 PSI) pdf 1.3 MB
- Outline Dimension Drawing - Kayden CLASSIC 814 Remote Enclosure Low Pressure w/Chain (MWP 125 PSI) pdf 766 KB
- Outline Dimension Drawing - Kayden CLASSIC 814 Remote Enclosure Medium Pressure (MWP 275 PSI) pdf 722 KB