Rki-instruments GD-70D Series Manual do Utilizador descarregar pdf (Página 36)

4 Detection Mode 4-1. Gas alarm activation

GD-70D - 36 -

The contact is activated when the gas concentration reaches or exceeds the alarm setpoint. The contact

activation is reset automatically when the gas concentration drops below the alarm setpoint.

'Alarm Pattern (H-HH)'

'Alarm Pattern (L-LL)' (* oxygen deficiency alarm)

larm delay time (2 seconds)

larm lamp (ALM 1)

larm contact (terminal plate 5, 6)

larm lamp (ALM 2)

larm contact

(

terminal

late 7

)

Second alarm setpoint

First alarm setpoint

Concentration

Time

larm lamp (ALM 2)

larm contact (terminal plate 7, 8)