De Nora Capital Controls CHLORALERT 17CA3000 Series - Analog Output; Delay; Latch; Output

325.6610.17 - 54 -
Where: INST - "Instantaneous" alarm signaling
STEL - Short term exposure limit, a 15 minute time weighted
average of the senses concentration.
TWA - Time weighted average based on an average gas
concentration measured over 8 hours
CUSTOM - Allows a customized time weighted average to be used
where the time-base is the times value entered in the
setup-configure-instrument-custom average hours menu
entry (refer to section 4.4.2.1.12).
CH1.ALRM1.MODE
INST
4.4.2.2.3.3 Latch
Enables the selection of the type of alarm, self-resetting
(latched). Possible selections are:
• YES
• NO
CH1.ALRM1.LATCH
YES
Where: YES - Once an alarm condition occurs, the alarm status will be
"latched” or non self-resetting. The unit will hold the alarm
state, even if the average gas concentration goes back be-
low the alarm threshold, until the ACK (acknowledge) key is
pressed.
NO - Alarm status self-resets. When the alarm condition clears,
normal operation will resume.
4.4.2.2.3.4 Delay
The DELAY menu selection enables entering a value
(in seconds) up to a maximum of 255 seconds. A
delayed alarm will not be signaled until the sensed gas
concentration exceeds the threshold continuously for the
duration of the alarm-delay time.
CH1.ALRM1.DELAY
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4.4.2.2.4 Analog Output
Each of the receiver’s four sensor channels has an optional analog output
available. The analog output menu determines the characteristics of the
four analog outputs, if so equipped. The following five selections are
available:
• Output
• Span
• Zero
• Mode
• Calibration
CH.ANALOG OUTPUT
OUTPUT
4.4.2.2.4.1 Output
CH1.ANAOUT.OUTPUT
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