8400 Screw-In Temperature Sensor/Switch

Brand: Burkert Fluid Control Systems
Does not ship to Virginia, United States

This intelligent sensor/switch with an extralarge display is specifically designed to switch a valve and to establish a monitoring system or an ON/OFF control loop.

Compact and wall versions are available. The wall-mounted version must be inserted into a holder previously mounted on a wall, and it must be associated with a remote temperature sensor.

The switching points can be programmed with the 3 key pads or optionally, with input 4-20 mA, from an external PLC over a 4-20 mA loop. As an option, the process value can additionally be transmitted to the PLC (4-20 mA).

The connection of the 8400 to the process in the piping is made using standard fittings.
Features
  • Indication, monitoring, transmitting and On/Off control in one device
  • Extra-large display
  • Menu-guided parametrisation
  • Complete control loop with external setpoint

3 models matching criteria
Out of Stock
Does not ship to Virginia, United States
Out of Stock
Does not ship to Virginia, United States
Out of Stock
Does not ship to Virginia, United States

Specifications

Accuracy

  • Switching: ± 0.5° C (± 0.9° F) at (0° to 80° C [32° to 176° F])
  • Switching: ± 1.5° C (± 2.7° F) at (Outside of 0° to 80° C [32° to 176° F])

Ambient Temperature Range

  • -20° to 60° C (-4° to 140° F)

Approvals & Certifications

  • CE
  • EU Directives
  • PED 2014/68/EU

BSP Connection

  • G 1/2” Male
  • 1/2” BSPT Male

Circuit Protection

  • Short Circuit Protected

Consumption

  • Current (Compact Version): 80 mA - Max.
  • Current (Wall Mounted Version): 50 mA - Max.

Diameter

  • Any Pipe with Sensor Connection 1/2” (12.7 mm)

Display

  • Large Digital Display with 8-Characters (4-Digital & 4 Alphanumeric Characters)

Electrical Connectors

  • 1/2” NPT Female Cable Plug
  • Cable Plug: EN 175301-803
  • M16 x 1.5 mm Cable Plug (Female)
  • Multipin: Swivel M12, 5-Pin or M12, 4-Pin or 8-Pin
  • Voltage Supply Cable: 0.14 to 0.5 mm², Max.
  • Voltage Supply Cable: Shielded

Enclosure, Body Material

  • 20 % Glass Fibre
  • Polycarbonate (PC)

Environmental Protection

  • IP65

Humidity

  • ≤ 80 % Relative Humidity, Non-Condensing

Input

  • Input External Set Point (Compact Version): 4-20 mA
  • Pt100 (3-Wired)

Input Impedance

  • Input External Set Point (Compact Version): 250 ohms, Max.
  • Voltage Supply Cable (Wall Mounted Version): 5 ohms, Max.

Loop Resistance

  • 1,000 ohms at 30 Vdc
  • 500 ohms at 18 Vdc
  • 800 ohms at 24 Vdc

Materials of Construction

  • Front Panel Folio: Polyester
  • Multipin: Polyamide (PA)
  • Wall Mounted Holder: PVC

Mounting

  • Wall Mounted

NPT Connection

  • 1/2” NPT Male

Output

  • 4-20 mA
  • Compact Version (Transistor): 5-30 Vdc at 700 mA - Max.
  • Wall Mounted Version: 700 mA at 30 Vdc, Max.

Output Format

  • Compact Version (Transistor): Open Collector

Plug Material

  • Cable Plug: Polyamide (PA)

Power Supply

  • 12-30 Vdc, Filtered & Regulated

Pressure Range

  • psi: 0 to 232.1 (kPa: 0 to 1,600, bar: 0 to 16) - Max.

Process Temperature

  • 125° C (257° F) - Max.

Relay Output

  • Compact Version: 3 A at 30 Vdc
  • Compact Version: 3 A at 48/250 Vac

Repeatability

  • ≤ ± 0.4 %

Response Time

  • 10 to 90 %: 7 seconds (For One Step Increment from 0 to 100° C [32 to 212° F])

Reverse Polarity Protection

  • Protected Against Reverse Polarity

RTD Type

  • Pt100

Screw Material

  • Stainless Steel

Seat / Seal Material

  • Seal: FKM

Sensor, Probe Connection

  • 3-Wire

Set Point - Decreasing

  • -40° to 125° C (-40° to 257° F)

Set Point - Increasing

  • -40° to 125° C (-40° to 257° F)

Switch Type

  • Transistor (NPN & PNP)

Wetted Materials

  • Sensor Element: Stainless Steel

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