Manual

4 Detection Mode 4-1. Gas alarm activation
GD-70D - 36 -
<Contact Activation>
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)
A
larm delay time (2 seconds)
A
larm delay time (2 seconds)
A
larm lamp (ALM 1)
A
larm contact (terminal plate 5, 6)
A
larm lamp (ALM 2)
A
larm contact
(
terminal
p
late 7
,
8
)
Second alarm setpoint
First alarm setpoint
Concentration
Time
A
larm lamp (ALM 2)
A
larm contact (terminal plate 7, 8)
A
larm delay time (2 seconds)
A
larm delay time (2 seconds)
A
larm lamp (ALM 1)
A
larm contact (terminal plate 5, 6)
First alarm setpoint
Second alarm setpoint
Concentration
Time