28
7.2 A3 High/Low Limit Range Alarm Action
A3 High/Low limit range alarm action is determined by setting A1 value and A2 value.
A3 is activated (ON) when both A1 and A2 are OFF – by combining A1 High limit alarm (or High limit
with standby alarm) and A2 Low limit alarm (or Low limit with standby alarm) and vice versa.
When standby function, hysteresis or delay time for A1 and A2 are set, check the below A3 action.
Please note the following:
• If A1 or A2 with standby alarm is selected, A3 is turned ON while A1 or A2 is in standby.
• If A1 or A2 hysteresis increases, A3 ON span decreases.
• When A1 or A2 delay time (setting time) increases, A3 ON time increases.
• If A1 or A2 delay time (setting time) is set, while A1 or A2 delay time is working (when power
to the instrument is turned ON), A3 is turned ON.
7.3 A4 High/Low Limit Range Alarm Action
When High/Low limit range alarm is selected in [A4 type]:
(Fig. 7.3-1)
: A1 output terminals (7, 8): OFF, A2 output terminals (9, 10): OFF,
A3 output terminals (12, 13): ON
: A1 output terminals (7, 8), A2 output terminals (9, 10) and A3 output terminals (12, 13):
ON or OFF
: A1 output terminals (7, 8): ON, A2 output terminals (9, 10): ON,
A3 output terminals (12, 13): OFF
