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Hach polymetron 9240 - Section 3 Analyzer Overview; 3.1 Overview

Hach polymetron 9240
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3. Select the VIEW SETUP option to define the parameters for the data you wish to view.
4. The FROM data field is the date (DD/MM/YY) from which you want to start viewing data.
5. The AT data field is the time (HH:MM:SS format) from which you want to start viewing the data.
6. The CH field defines the channel for which you want to view the data.
7. If you wish to see the ALARMS information (both system and warning alarms), select Yes in this
field, or No if alarm information is not required.
Graph time base
For graphical displays, enter the number of hours as the base line for the graph.
Alarms
1. Select the ALARMS option to set up the parameters for all the alarms including the system and
warning alarms.
2. Select the alarm to set up.
3. General alarms:
Mode
Limit Trigger the alarm when the measurement is above or below a pre-defined limit
Sample flow Trigger the alarm when the sample flow rate is too low
Active channel Trigger the alarm when the channel is active
Attributes Channel n Defines the channel number on which the alarm is triggered
Limit nnnn Define the limit when the alarm should be triggered
Direction
Up Trigger alarm when measurement is above the limit
Down Trigger alarm when measurement is below the limit
Delay nnn seconds The delay before the alarm is activated
Hysteresis nn% Hysteresis %
Relay
N.O. Normally open
N.C. Normally closed
4. Warning alarm:
Alarm
Yes Activate the warning alarm
No Deactivate the warning alarm
Accept
Manual When the alarm is triggered, turn it off by pressing the Enter function key
Auto
When the alarm is triggered, it will turn itself off only when the reason for the alarm being
triggered is no longer valid
Relay
N.O. Normally open
N.C. Normally closed
5. System alarm:
Alarm
Yes Activate the system alarm
No Deactivate the system alarm
Relay
N.O. Normally open
N.C. Normally closed
English 17

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