QUANTA DQ61, User Manual, Page: 10 / 22

Pag. 10
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
The relay A2 (signaled by the ALARM LED) switches when the probe reaches the alarm temperature.
Enabling this
relay can be delayed by setting a time in the user menu .

The relay A3 ( signaled by LED TRIP ) switches when one of the probes reaches a temperature of
release .
The working mode of this relay can be controlled by the user menu:

Standard mode: It is active when you reach the alarm condition and remains active until the
condition persists.

Latching mode: Keeps the alarm indefinitely, even to the end of the cause of the alarm.

Pulse mode: It is activated for a predetermined time and then returns to the rest condition.

The relay A4 (indicated by LED FAULT) is always on and going off to signal a DQ61 fault condition or a
fault condition in one or more probes.
A1 A2 A3 A4
26 27 28 29 30 31 32 33 34 35 36 37
Figure 6
Relay in its rest position; DQ61 ON
A1 A2 A3 A4
26 27 28 29 30 31 32 33 34 35 36 37
Figure 7
Fan activated; Fault DQ61 and/or fault probe
5.8 Buzzer features
The buzzer is activated at the reach of alarm set-point (ALARM), which also activates the relay A2, and beeps
intermittently slow until the end of cause for alarm.
The buzzer sounds intermittently fast, when it reaches the release set-point (TRIP) which activates the relay
A3.
The buzzer sounds a continuous tone to indicate the fault condition of a Pt100 probe.
The MUTE key mute the buzzer when alarm is active. In the state of silencing the buzzer wakes up in the
presence of new alarm events.
The activation of the buzzer on alarm can be inhibited by the service menu.
.
Type of sound Cause reported
Continuous One or more probes are faulty
Intermittent slow Active alarm relay (ALARM)
Intermittent fast Active tripping relay (TRIP)