3
Zenex Plus
User Manual
The Alarm / Process Status space on the screen may show one or more of the several messages listed in Table 2.2 depending
upon the existence of active alarms or process events. In case of co-existence of multiple active alarms or process events, the
messages are scrolled one after the other with an approximate time interval of 3 seconds. Also if there is no active alarm or
process event, the message space is blank.
Table 2.2
Process Status Screen
The Process Status Screen is shown upon pressing
(Scroll) key from Main Screen or upon acknowledging a new Alarm by
pressing
(Acknowledge) key. As depicted in Figure 2.4(a) for Old Version & 2.4(b) for New Version; the screen shows
Temperature Alarm Status, Door Open / Close Status, the Heater Output Status (ON / OFF or % Power) & Compressor ON /
OFF Status.
Figure 2.4(a) :
Old Version
Message String
Alarm / Process Status
The Controller is Self Tuning.
Temp High
Temp Low
Tuning
The measured temperature is in Process High
Alarm State.
The measured temperature is in Process Low
Alarm State.
Door Open
The Equipment / Chamber door is open for a time
longer than the set ‘DOOR ALRM DLY’ time.
Timer Hold
The Countdown Timer is paused since the PV is
outside Hold Band.
°C
PROCESS STATUS
High
Door
Close
Compressor
OFF
Heating
0.0%
Heating Control
Output Power
Compressor
Output Status
Temperature
Alarm Status
Door Status
Process Status
High
Door
Close
Compressor
OFF
Heater
0.0%
Heating Control
Output Power
Compressor
Output Status
Temperature
Alarm Status
Door Status
Temp
Figure 2.4(b) :
New Version