Attention! You're watching an archived documentation :
You are in an old document of materiels which not manufactured and not marketed yet
Warning with their use...
• Galvanic isolation • input 4-20 mA or potential free contact • Intrinsic safety • Settings on relay outputs • Power supply to sensor
The PKK-312 is a 4-20 mA relay with galvanic isolation. An intrinsic safety version is available. The value of input signal is compared with setting value and change of galvanic insulation status, accordingly with the comparison mode in use.
Outputs are configurable according to various applications:
• Switching limit (high or low) • Control ON/ OFF with setting on switching differential • Comparative status mode with relay activation or deactivation • Monitoring of discontinuity or broken loop
Instead of a 4-20 mA a dry contact can be connected to the input. Status of this contact is copied and the output signal is then galvanically isolated PKK-312 allows the selection of time delays of 0.1; 1; 2; 5 s
Relay status diagram:
Operating modes of relay are programmed through the press buttons on the front, following indications of the LEDs. One of the most important parameters is the relay operating mode "R":
When current input value is above the threshold: If R = 1, relay output is activated If R = 0, relay output is deactivated
Thus, for Drain/Fill or Hold temperature applications, the control mode (normal or reverse) can be assigned to the ON/ OFF function.
CODE NUMBERS AND REFERENCES
Relay, 230 V AC
Relay, 24 V AC/ DC
Relay Ex, 230 V AC
Relay Ex, 24 V AC/ DC
Relay Ex, 24 V AC/ DC, for NIVOSWITCH Ex 2-wire
PKK-312-8 Ex is an intrinsically safe version designed for NIVOSWITCH Ex-certified level detectors.
General Catalog 251-02 26/03/2022 19:25
Multitask relay PKK
BAMO Mesures SAS
22, Rue de la Voie des Bans Parc d'activités de la Gare
95100 ARGENTEUIL France