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View of the Electronics Module Plugged into the mounting plate of the enclosure of the Kayden CLASSIC 810 Series Flow and Level Switch

Kayden CLASSIC 810 Thermal Flow, Level & Interface Switch

Brand: Kayden Instruments

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Three-Quarter Front View of the Kayden CLASSIC 810 Series Threaded Flow and Level Switch

View of the Electronics Module of the Kayden CLASSIC 810 Series Flow and Level Switch

View of the Electronics Module Plugged into the Enclosure of the Kayden CLASSIC 810 Series Flow and Level Switch

The Kayden CLASSIC 810 Flow, Level, Interface Switch & Transmitter features a precision-welded, highly accurate stainless steel sensor. Alarms and trip-points are field-configurable for flow, temperature, high or low, hysteresis, time delay, and more.

Ideal for liquids, gases, and slurries in a clean or dirty process, the CLASSIC 810 is available in a wide range of thread sizes and insertion lengths. Kayden's electronic thermal dispersion flow and level switches have no moving parts to foul, clog, or stick, resulting in exceptional reliability and requiring little to no maintenance.

With no moving parts and minimal invasiveness, Kayden's thermal flow and level switches provide a highly repeatable, accurate, low cost of ownership, long life, and easy-to-install solution for demanding air, gas, liquid, and slurry applications.

All Kayden® CLASSIC® models feature a rugged flameproof enclosure with blind or glass lens covers. Kayden’s advanced digital electronics will streamline the way you monitor and control your process.

Process Connections - Male NPT
- 1/2"
- 3/4"
- 1"
- 1-1/4"
- 1-1/2"
- 2"
Adjustable Set Point Range
- 0 - 254 feet/s
- 0 - 77 meters/s
Insertion 'U' Lengths
- 1.2" (3.0 cm)
- 2" (5.0 cm)
- 3" (7.5 cm)
- 4" (10.1 cm)
- 6" (15.2 cm)
- 9" (22.8 cm)
- 12" (30.4 cm)
- 18" (45.7 cm)
- Custom Lengths from 2.5" to 120" (6.0 cm to 305 cm) by 1/2" (1 cm) increments
Input/Supply Power
- 12-24 Vdc & 120-240 Vac, 50-60 Hz
Operating Pressure - Maximum
- CSA - Canadian Standards Association
  - psi 3,480
  - kPa 24,000
  - bar 240
- CRN - Canadian Registration Number 0F22124.2C for 316/316L Stainless Steel
  - psi 1,990
  - kPa 13,721
  - bar 137.2
Temperature Range - Sensor
- -55° to 200° C
- -67° to 392° F
Local Enclosure
- Aluminum
- 1" Female NPT
- Hazardous Areas
Local Enclosure Cover
- Blind or Glass Lens
- Hazardous Areas
Wetted Materials
- 316/316L Stainless Steel
- Titanium
- Hastelloy C-276
Outputs/Communications
- Two Independent Relays - SPDT
- 4-20 mA
- Modbus
- Rated 120 Vac max, 30 Vdc max, 4 A max
Approvals
- CSA
- CRN
- Single Seal
- NACE
- ASME BPVC Sec. VIII Div. 1
- NEMA 4, 4X, 6P, IP65/67

Features

Detects minimum flow and the presence and absence of flow
Temperature compensation to provide repeatable alarm under varying process temperatures
Continuous diagnostics detect sensor fault
Non-linear mA output signal can be used for trending, diagnostics, repeatable flow and level indication
Simple calibration and installation
Excellent low-flow sensitivity
Window to view alarm status
Integral or remote electronics
NACE construction

1 - 12 of 20,123 Part Numbers

per page:

810-RAC-0012-C1B0A-1E

KAYDEN® CLASSIC® Thermal Flow, Level, Interface Switch, Modbus, 1/2" NPT, 1.2"U Length, 316 SST Sensor, Local Electronics Enclosure with Blind Cover, Approvals: C CSA Us (UL Standards)

Sensor Material - 316/316L Stainless Steel
Process Connection - Male NPT - 1/2”
Insertion 'U' Length - 1.2” (3 cm)
Cover for Local Enclosure - Blind Cover
Remote Electronics Enclosure & Cover - Not Required
Agency Approvals - CSA (Canada & US)

810-RAC-0012-C1B0A-3E

KAYDEN® CLASSIC® Thermal Flow, Level, Interface Switch, Modbus, 1/2" NPT, 1.2"U Length, 316 SST Sensor, Local Electronics Enclosure with Blind Cover, Approvals: C CSA Us (UL Standards), CRN

Sensor Material - 316/316L Stainless Steel
Process Connection - Male NPT - 1/2”
Insertion 'U' Length - 1.2” (3 cm)
Cover for Local Enclosure - Blind Cover
Remote Electronics Enclosure & Cover - Not Required
Agency Approvals - CRN & CSA (Canada)

810-RAC-0012-C1B1G-1E

KAYDEN® CLASSIC® Thermal Flow, Level, Interface Switch, Modbus, 1/2" NPT, 1.2"U Length, 316 SST Sensor, Remote Electronics Enclosure with Glass Lens Cover, Approvals: C CSA Us (UL Standards)

Sensor Material - 316/316L Stainless Steel
Process Connection - Male NPT - 1/2”
Insertion 'U' Length - 1.2” (3 cm)
Cover for Local Enclosure - Blind Cover
Remote Electronics Enclosure & Cover - Glass Lens Cover
Agency Approvals - CSA (Canada & US)

810-RAC-0012-C1B1G-3E

KAYDEN CLASSIC Thermal Flow, Level, Interface Switch, Modbus, 1/2" NPT, 1.2"U, SST, Remote, Lens,CRN

Sensor Material - 316/316L Stainless Steel
Process Connection - Male NPT - 1/2”
Insertion 'U' Length - 1.2” (3 cm)
Cover for Local Enclosure - Blind Cover
Remote Electronics Enclosure & Cover - Glass Lens Cover
Agency Approvals - CRN & CSA (Canada)

810-RAC-0012-C1G0A-1E

KAYDEN® CLASSIC® Thermal Flow, Level, Interface Switch, Modbus, 1/2" NPT, 1.2"U Length, 316 SST Sensor, Local Electronics Enclosure with Glass Lens Cover, Approvals: C CSA Us (UL Standards)

Sensor Material - 316/316L Stainless Steel
Process Connection - Male NPT - 1/2”
Insertion 'U' Length - 1.2” (3 cm)
Cover for Local Enclosure - Glass Lens Cover
Remote Electronics Enclosure & Cover - Not Required
Agency Approvals - CSA (Canada & US)

810-RAC-0012-C1G0A-3E

KAYDEN® CLASSIC® Thermal Flow, Level, Interface Switch, Modbus, 1/2" NPT, 1.2"U Length, 316 SST Sensor, Local Electronics Enclosure with Glass Lens Cover, Approvals: C CSA Us (UL Standards), CRN

Sensor Material - 316/316L Stainless Steel
Process Connection - Male NPT - 1/2”
Insertion 'U' Length - 1.2” (3 cm)
Cover for Local Enclosure - Glass Lens Cover
Remote Electronics Enclosure & Cover - Not Required
Agency Approvals - CRN & CSA (Canada)

810-RAC-0012-C1G1G-1E

Sensor Material - 316/316L Stainless Steel
Process Connection - Male NPT - 1/2”
Insertion 'U' Length - 1.2” (3 cm)
Cover for Local Enclosure - Glass Lens Cover
Remote Electronics Enclosure & Cover - Glass Lens Cover
Agency Approvals - CSA (Canada & US)

810-RAC-0012-C1G1G-3E

Sensor Material - 316/316L Stainless Steel
Process Connection - Male NPT - 1/2”
Insertion 'U' Length - 1.2” (3 cm)
Cover for Local Enclosure - Glass Lens Cover
Remote Electronics Enclosure & Cover - Glass Lens Cover
Agency Approvals - CRN & CSA (Canada)

810-RAC-0020-C1B0A-1E

KAYDEN® CLASSIC® Thermal Flow, Level, Interface Switch, Modbus, 1/2" NPT, 2"U Length, 316 SST Sensor, Local Electronics Enclosure with Blind Cover, Approvals: C CSA Us (UL Standards)

Sensor Material - 316/316L Stainless Steel
Process Connection - Male NPT - 1/2”
Insertion 'U' Length - 2” (5.0 cm)
Cover for Local Enclosure - Blind Cover
Remote Electronics Enclosure & Cover - Not Required
Agency Approvals - CSA (Canada & US)

810-RAC-0020-C1B0A-3E

KAYDEN® CLASSIC® Thermal Flow, Level, Interface Switch, Modbus, 1/2" NPT, 2"U Length, 316 SST Sensor, Local Electronics Enclosure with Blind Cover, Approvals: C CSA Us (UL Standards), CRN

Sensor Material - 316/316L Stainless Steel
Process Connection - Male NPT - 1/2”
Insertion 'U' Length - 2” (5.0 cm)
Cover for Local Enclosure - Blind Cover
Remote Electronics Enclosure & Cover - Not Required
Agency Approvals - CRN & CSA (Canada)

810-RAC-0020-C1B1G-1E

KAYDEN® CLASSIC® Thermal Flow, Level, Interface Switch, Modbus, 1/2" NPT, 2"U Length, 316 SST Sensor, Remote Electronics Enclosure with Glass Lens Cover, Approvals: C C CSA Us (UL Standards)

Sensor Material - 316/316L Stainless Steel
Process Connection - Male NPT - 1/2”
Insertion 'U' Length - 2” (5.0 cm)
Cover for Local Enclosure - Blind Cover
Remote Electronics Enclosure & Cover - Glass Lens Cover
Agency Approvals - CSA (Canada & US)

810-RAC-0020-C1B1G-3E

KAYDEN® CLASSIC® Thermal Flow, Level, Interface Switch, Modbus, 1/2" NPT, 2"U Length, 316 SST Sensor, Remote Electronics Enclosure with Blind Cover, Approvals: C CSA Us (UL Standards), CRN

Sensor Material - 316/316L Stainless Steel
Process Connection - Male NPT - 1/2”
Insertion 'U' Length - 2” (5.0 cm)
Cover for Local Enclosure - Blind Cover
Remote Electronics Enclosure & Cover - Glass Lens Cover
Agency Approvals - CRN & CSA (Canada)

1 - 12 of 20,123 Part Numbers

View_Details

CLASSIC® 810

Specifications

Brand

Kayden Instruments

Applications

Flow
Level
Interface

Principle of Operation

Thermal, Calorimetric

Sensor, Probe Style

Insertion Threaded

NPT Connection

1/2” NPT Male
3/4” NPT Male
1” NPT Male
1-1/4” NPT Male
1-1/2” NPT Male
2” NPT Male

Insertion 'U' Length

1.2” (3 cm)
2” (5 cm)
3” (7.5 cm)
4” (10.1 cm)
6” (15.2 cm)
9” (23 cm)
12” (30 cm)
18” (46 cm)
Custom Lengths from 6.4 cm to 305 cm (in 1 cm increments)
Custom Lengths from 2.5” to 120” (in 1/2” increments)

Wetted Materials

316, 316L Stainless Steel
Hastelloy C-276
Titanium

Operating Pressure - Sensor

CSA - All Process Connections: Max. Working Pressure: 3481 psi (24 MPa)
CRN - All Process Connections: Max. Working Pressure: 1990 psi (13.72 MPa), Material: 316/316L Stainless Steel
Canadian Registration Number (CRN): 0F22124.2C

Operating Temperature - Sensor

-55° to 200° C
-67° to 392° F

Sensor Construction

All-Welded Construction

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 to 5.0 fps, 0.003 to 1.50 mps
Water-based Liquids: 0.01 to 3.00 fps, 0.003 to 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

SPDT Sealed Relay Contacts Rated @ 4 Amps Resistive 230 Vac or 30 Vdc, Max.

Input Power

12-24 Vdc, 120-240 Vac, 50/60 Hz
Power Consumption: 6 Watts Max. Fully Configured
Universal Power Input

Output

4-20 mA (Thermal Signal, Scaleable) 120 Vac, Max.

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

Canadian Standards Association Details:
CSA Mark with "C" and "US" or with NRTL
CSA - Maximum Working Pressure: 24 MPa, 3481 PSI, Single Seal when used with the approved Classic 810 Series sensors.
CSA - Input/Supply Rated 12/24 VDC or 120/240 VDC, 50/60 Hz, 6 W Max.
CSA - Output/Contacts Rated 120 VAC Max., 30 VDC Max., 4 Amp Max.
CSA - Ambient Temperature Rating: -55° C to +65° C (-67° F to +149° F)
CSA - Process Temperature Range: -55° C to +200° C (-67° F to +392° F)
CSA - Temperature Code: T3
CSA - Enclosure Type: 4, IP55
CSA - Local Sensor & Electronics 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) 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)
Canadian Registration Number Details:
CRN - All Provinces & Territories of Canada
CRN - Material: 316/316L Stainless Steel
CRN - Process Connections: 1/2", 3/4", 1", 1-1/4" & 2" Male NPT
CRN - Insertion Lengths: 1.2" to 120" (3.0 to 304 cm)
CRN - Max. Working Pressure: 1990 psi, 13,720 kPa, 137 bar
CRN - Temperature Range: -55° C to +200° C (-67° F to +392° F)
CRN - Code of Construction: ASME B31.3
CRN - Canadian Registration Number: 0F22124.2C

Electronics - Standard Features

100% Digital Design. Electronics are Environmentally Sealed
4-Adjustable Independent Switch Point Timers
Automated Redundant Self-Test Diagnostics
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
Display Panel Lock-Out*
*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 Electronics Display Panel to Protect the Settings
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
Many Other Adjustable Features

Environmental Protection

IP55
IP67
NEMA 4X

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 - Hazardous Areas
Blind Cover - Hazardous Areas
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

Storage Temperature

Store in a clean & dry environment between -30° & 60° C (-22° & 140° F)

Media - A few examples

Air and Gases
- Sour Gas
- Sweet Gas
Liquids
- Oils
- Turpentine
- Water
Slurries
- Pulp

Process Media Applications

Flow

Ammonia Storage
Biogas Flow
Catalysis Vessels
Chemical Injection & Additive Flow Monitoring
Chemical Reactors
Chlor-alkali Processes
Compressors
Condensers
Cooling Water
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
Oil Well System Testing
Pumps
Reboilers
Refinery Flow Applications
Relief Valve & Rupture Disk Flow Monitoring
Remote Indication of Flow via Analog Output & Digital Communications
Pump Protection - Dry Alarm
Safety Spray Nozzle Monitoring
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, Air, Gases, Slurries & Emulsion

Consistent Process Composition & Temperature
Sufficient Straight Run Flow Profile (minimizes turbulence)
Recommended Minimum of 5 Pipe Diameters from any Disturbance

Air & Gas

Clean and Dry

UNDESIRABLE PROCESS CONDITIONS FOR FLOW

Liquids, Air, Gases, Slurries & Emulsion

Inconsistent Process Composition or Temperature
Insufficient Straight Run
Aerated Fluids
Turbulence

Air & Gas

Wet or Saturated Air & Gas

Solids

Dry granulated processes are NOT good candidates for thermal switches

Documentation

Data Sheets

Product Manuals

Application Considerations

Application Consideration - Kayden Process Conditions pdf 788 KB

Application Notes

Catalogs

Certifications & Approvals

Certifications & Approvals - Kayden 800 CLASSIC CSA 2023 pdf 155 KB

Outline Drawings

Software

Kayden RCMS Software Rev 7.2.0 zip 45.0 MB

Wiring Diagrams

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Kayden CLASSIC 810 Thermal Flow, Level & Interface Switch

Product Details

Part Numbers

810-RAC-0012-C1B0A-1E

810-RAC-0012-C1B0A-3E

810-RAC-0012-C1B1G-1E

810-RAC-0012-C1B1G-3E

810-RAC-0012-C1G0A-1E

810-RAC-0012-C1G0A-3E

810-RAC-0012-C1G1G-1E

810-RAC-0012-C1G1G-3E

810-RAC-0020-C1B0A-1E

810-RAC-0020-C1B0A-3E

810-RAC-0020-C1B1G-1E

810-RAC-0020-C1B1G-3E

Configure

CLASSIC® 810

Specifications

Specifications

Brand

Applications

Principle of Operation

Sensor, Probe Style

NPT Connection

Insertion 'U' Length

Wetted Materials

Operating Pressure - Sensor

Operating Temperature - Sensor

Sensor Construction

Operating Temperature - Electronics

Switch Point Range

Response Time

Accuracy

Switch Type

Input Power

Output

Communication

Approvals & Certifications

Electronics - Standard Features

Remote Control & Monitoring Software

Environmental Protection

Local Enclosure Conduit Connection

Local Enclosure & Cover Material

Local Enclosure Cover

Local Enclosure & Cover Finish

Remote Electronics Enclosure Cover

Remote Electronics Enclosure & Cover Finish

Storage Temperature

Applications

Documentation

Documentation

Data Sheets

Product Manuals

Application Considerations

Application Notes

Catalogs

Certifications & Approvals

Outline Drawings

Software

Wiring Diagrams