Type 8400

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2.

Product versions

2.1. Compact version

Compact version, available in several variants.

• The 8400 Standard has a Pt100 with a 29.5 mm mounting length.

• The 8400 Extended has a Pt100 with a 100 or 200 mm mounting length. The adaptation of the 8400 will be done through the

external thread or also with a compression fitting (not part of delivery).

This allows variable mounting in larger pipe diameters or tanks.

Product details

Materials

• Non wetted parts:

– Female cable plug/male fixed plug in PA (body, contact holder and cable

gland) with electrical contact in Sn and cable gland seal and flat seal in NBR

– 5-pins M12 male fixed plug in PA with electrical contact in brass, gold-plat-

ed

– 8-pins M12 male fixed plug in PA and CuZn, nickel-plated with electrical

contact in CuZn, pre-nickeled and gold-plated

• Wetted parts:

– Pt100 sensor element in stainless steel

– Seal in FKM (EPDM on request)

– Process connection in stainless steel 316L (1.4404)

Compatibility

Any pipe with DN ≥ 15

Voltage supply cable

Shielded

• For female cable plug (supplied): external diameter of wire: 6…7 mm, cross sec-

tion of wires: 0.14…0.5 mm²

• For 5-pins M12 female plug (not supplied): external diameter of wire: 3…6.5 mm,

cross section of wires: max. 0.75 mm²

• For 8-pins M12 female plug (not supplied): external diameter of wire: 5.9 mm,

cross section of wires: 0.25 mm²

Measuring range

• - 40…+ 125 °C (- 40…+ 257 °F) (with ambient temperature 0…+ 40 °C

(- 32…+ 104 °F))

• - 40…+ 90 °C (- 40…+ 194 °F) (with ambient temperature > + 40 °C (104 °F))

Current consumption

Max. 80 mA (no load)

Input external setpoint

4…20 mA, galvanic insulation, max. input impedance: 250 Ω

Output signal

• Transistor (configurable): protection against short circuits

– NPN and/or PNP, open collector, 700 mA max., 500 mA per transistor if both

transistors outputs are wired

– NPN-output: 0.2…30 V DC

– PNP-output: power supply

• Relay (configurable):

– single relay output: 3 A/250 V AC or 3 A/30 V DC

– relay output and 4…20 mA current output: 3 A/48 V AC or 3 A/30 V DC

• Process value:

– 4…20 mA, galvanic insulation

– loop resistance max.: 1000 Ω at 30 V DC, 800 Ω at 24 V DC, 500 Ω at

18 V DC

Response time (10…90 %) 7 s (for one step increment from 0…+ 100 °C (+ 32…+ 212 °F))

Fluid temperature

- 40…+ 125 °C (+ 40…+ 257 °F)

Fluid pressure max.

PN16

Pressure equipment

directives

Complying with Article 4, Paragraph 1 of 2014/68/EU directive. Detailed information

on the pressure equipment directive can be found in chapter “3.1. Pressure Equip-

ment Directive” on page 6

Process connection

G, NPT, Rc ½ screw-in thread

Ambient temperature

• - 20…+ 60 °C (- 4…+ 140 °F) if T

fluid < 90 °C (+ 194 °F)

• - 20…+ 40 °C (- 4…+ 104 °F) if T

fluid > 90 °C (+ 194 °F)