Crouzet 84870502 Data Sheet

DIN Rail Mount 45 mm FN Part number 84870502

Automatic control and regulation of liquid levels.
2 sensitivity ranges.
Filling or emptying function selected via dip switch.
High or low alarm selected via dip switch.
Memory can be selected.
LEDs indicate state of power supply, output relay and alarm relay.

Part numbers

Specifications

Type

Voltages

84 870 502

FN

48 VAC

Supply voltage Un

230, 120, 48 and 24 V AC 50/60 Hz galvanic isolation via transformer

Operating range

0.85 to 1.15 Un except 120 V AC : 0.85 to 1.1 Un

Nominal power

3 VA at Un

Maximal power

4 VA at Un + 15 %

Immunity from micro power cuts

10 ms Delay on pick

-up

T1 = approx. 2 s

Response time on power up

T4 = 500 ms

Insulation coordination

Category III, degree of pollution 2 conforming to IEC/EN 60664

-1 : 4 kV/2

Sensitivity range FN

5 k

Ω

→100k

Ω

Sensitivity range FHLS

250

Ω

→5k

Ω

Display precision

±

30 % with maximum sensitivity

Electrode voltage

15 V AC (50/60 Hz)

Electrode current

1 mA Response time on immersion

T2 = 400 ms

Response time on emersion

T3 = 700 ms

Output

2 AgCdO changeover

Breaking capacity

FN LS : 2000 VA
FN : 80 W

Maximum breaking current

FN LS : 8 A AC
FN : 8 A DC

Minimum breaking current

FN LS : 100 mA AC
FN : 100 mA DC

Max. breaking voltage

FN LS : 250 V AC
FN : 250 V DC

Mechanical life (operations)

2 x 10

6

Electrical life AC 12

2000 VA - 105 operations

Electrical life AC 15

Cos φ=

0,3 - 6000 operations

Electrical life AC 13

L/R = 300 ms

- 6000 operations

Housing material

Self-extinguishing

Terminal capacity

2 x 1,5 mm2 with ferrule
2 x 2,5 mm2 without ferrule

Temperature limit operation (IEC 68.1.14)

(°C)

-

20→+60

Temperature limits stored (IEC 68.1.1/2)

(°C)

-

30→+70

Relative humidity (no condensation)

93 % (+2 % ; -3 %)

Weight (g)

280

* Création *

TRADOS Empty Field

Principles

20/10/2014 www.crouzet.com

Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected

On power-up, probe AI. is submerged, relays R1 and R2 are energised and the pump is ON : filling starts, the LED for relay R1 is lit. When the level reaches the Max probe, relay R1 de-energises
and the pump is OFF : filling stops, the LED for relay R1 goes off. Relay R1 re

-energises when the Min probe emerges. In the event of a fault (level continues to fall) probe AI. emerges, relay R2 de­energises ans the alarme is triggered : the LED for relay R2 is lit.
This fault can be stored

On power-up, the level in the tank is low, relays R1 and R2 are energised and the pump is ON : filling starts, the LED for relay R1 is lit. When the level reaches the Max probe, relay R1 de-energises
and the pump is OFF : filling stops, the relay LED goes off. If, in the event of a fault, the level continues to rise and reaches proble AI., relay R2 de-energises and the alarme is triggered : the LED for
relay R2 is lit.
This fault can be stored.

N

o

Legend

Memory OFF

Memory ON

T1 : Delay on pick

-up

T2 : Response time on immersion

T3 : Response time on emersion

T4 : Response time on power-down

Principles

20/10/2014 www.crouzet.com

Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected