Ranges And Units; Alarm Relay On/Off Delay; Alarm Relay On Delay - Honeywell Unipoint 2306B1000 Operating Instructions Manual

UNIPOINT OPERATING MANUAL

10 Ranges and Units

Below are the possible combinations of range and units for the two Unipoint Controller types:
Unipoint Controller
mV or mA version

11 Alarm Relay On/Off Delay

Part of the 'Set Alarms' configuration allows a user programmable delay for each alarm
threshold between the detection of an alarm and the activation of the alarm relay output, and
a programmable hold between the clearing of an alarm and the release of the relay output. The
delay times are adjustable over the range 0 to 900 seconds (900sec equals 15mins).
The default delay times are 0 (no delay).
If an alarm relay activation delay is set to greater than 0 secs the
presence of a gas concentration in excess of the alarm threshold will

11.1 Alarm Relay On Delay

The programmable alarm relay delay operates in the following manner:
• If the delay is set, then in the event of the GAS CONCENTRATION EXCEEDING the alarm
threshold the following occurs:
• The LCD, LED, and buzzer signal the alarm.
• The alarm relay output does not signal the occurrence of the alarm immediately.
• The delay counts down.
• When the delay has expired, the relay output then signals the alarm.
• If during the delay the GAS CONCENTRATION FALLS below the alarm threshold and the
alarm is configured as NON-LATCHING, the indication of the alarm on the LCD, LED, and
buzzer is removed and the delay reset.
• If during the delay the gas CONCENTRATION FALLS below the alarm threshold and the
alarm is configured as LATCHING, the indication of the alarm on the LCD, LED, and buzzer
remains, the delay continues to run and the relay output is updated when the delay time
has expired.
• If during the delay the GAS CONCENTRATION IS ABOVE the alarm threshold and the
ACCEPT/RESET INPUT/KEY is activated to accept the alarm, the LCD, LED, and buzzer
will respond as per section 7.4, the delay continues to run and the relay output is updated
when the delay time has expired.
• If during the delay the GAS CONCENTRATION FALLS BELOW the alarm threshold, the alarm
is configured as LATCHING, and the ACCEPT/RESET EXTERNAL INPUT/KEY is activated to
reset the alarm, the LCD, LED, buzzer and the delay time reset.
Units
%LEL 2.00; 3.00; 5.00; 10.0; 15.0; 20.0; 25.0; 50.0 of 100
%VOL
PPM 2.00; 3.00; 5.00; 10.0; 15.0; 20.0; 25.0; 50.0; 100; 150;
WARNING
not be immediately signaled.
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2306M5001 MAN0638 ISSUE 7 01/2011
Available Full Scale Ranges
200; 300; 400; 500 of 1000