Page 395 - Bürkert

Temperature Transmitter / Switch with display

8400 • Menu-guided configuration
• Wide choice of connections and outputs

• Large digital display
• Bar graph display for local monitoring
• Continuous on/off control
• 2-wire transmitter

This intelligent sensor / switch with a particularly large display is de- Envelope Dimensions [mm] (see datasheet for details)
signed specifically for monitoring limit values or an on/off or continuous
control loop. The switching points can be programmed directly via buttons
on the display or optionally externally by a PLC via a 4-20 mA standard B
signal input. In addition, the process value can be transmitted via a 4-20
mA signal to the PLC.

Technical Data
General data C
Materials
Housing PC, +20% glass fibre
Front panel folio / Screws Polyester / Stainless steel
Cable plug, Multipin PA
Materials wetted parts
Sensor element Stainless steel D
Seal FKM
Sensor element Pt100 A
Screw-in thread G 1/2” A B C D
Electrical connections Cable plug: EN 175301-803 29.5 54 54 103.5
Multipin: swivel M12, 5-pin or M12, 4-pin or 8-pin
2
Voltage supply cable max. 100 m, shielded, 0.14 up to 0.5 mm max.
5 Ω max. cable impedance (Wall-mounted version)
Complete device data (pipe + electronic module)
Pipe diameter Any pipe with sensor connection 1/2” Environment
Measuring range -40 to +125 °C (for ambient temp. between 0 and +40°C) Ambient temperature -20 up to 60 °C
Compact version -40 to +90 °C (for ambient temp. > +40 °C) Relative humidity ≤ 80%, without condensation
Medium temperature +125 °C max. Standards, directives and approvals
Fluid pressure max. PN16 Protection class IP65 with connector plug-in
Switching accuracy ±0.5 °C (0 up to +80 °C) Standards and directives
±1.5 °C (outside of 0 up to +80 °C) EMC EN 50081-1, 50082-2
Repeatability ≤ ±0.4% Security EN 61010-2
Electrical data Pressure Complying with article 3 of §3 from 97/23/CE directive.*
Power supply 12-30V DC , filtered and regulated Vibration EN 60068-2-6
Shock EN 60068-2-27
Outputs - Compact version
Transistor (programmable) NPN and PNP, open collector, 5 up to 30V DC, * For the 97/23/CE pressure directive, the device can only be used under following
700 mA max., protected against short circuits conditions (depend on max. pressure, pipe diameter and fluid).

Relay (programmable) 3A/250V AC or 3A/30V DC
3A/48V AC or 3A/30V DC 1) Type of fluid Conditions
Input external setpoint Fluid group 1, §1.3.a DN25 only
Compact version 4-20 mA, galvanic insulation, max. input impedance: Fluid group 2, §1.3.a DN ≤ 50
250 Ω Fluid group 1, §1.3.b DN ≤ 50
Current consumption Fluid group 2, §1.3.b DN ≤ 50
Compact version Max. 80 mA (no load) 1) Valid for: external setpoint input and process value output
Response time (10 to 90%) 7 s (for one step increment from 0 up to 100 °C
Reversed polarity of DC Protected
Option
• 8400: Outputs : Relay 3 A/250 or 3 A/30V DC

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