84870502 Crouzet USA, 84870502 Datasheet - Page 2

• Manufacturer Part Number: 84870502
• Description: FN LLC W-ALARM 48 VAC
• Manufacturer: Crouzet USA

Specifications of 84870502

• Lead Free Status / Rohs Status: Details

For more information www.crouzet.com
Max
Min
Max
Min
Dimensions
FN / FN LS
Connections
Regulating with "up" filling control
Principles
Filling control with low alarm
Filling control with high alarm
Un
Al.
R1
R2
Un
Al.
R1
R2
1
1
2
2
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 de-
energises and the alarm is triggered : the LED for relay R2 is lit.
This fault can be stored
B
C
T1 : Delay on pick-up
T2 : Response time on immersion
T3 : Response time on emersion
T4 : Response time on power-down
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 alarm is triggered :
the LED for relay R2 is lit.
B
C
T1 : Delay on pick-up
T2 : Response time on immersion
T3 : Response time on emersion
This fault can be stored.
Memory OFF
Memory ON
Memory OFF
Memory ON
A1 - A2 : Supply voltage
11 - 12 - 14 : Output relay (R1)
21 - 22 - 24 : Alarm output relay (R2)
C - Min - Max - Al. : Probe inputs
117
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