Hach IO9000, User Instructions

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Configure the relays and digital outputs
Select the alarms that trigger the relays and/or digital outputs. Configure the alarms before this task
is started. Refer to the sampler documentation.
1. Push MENU .
2. Select Programming>Alarm Programming.
3. To select a system alarm (e.g., pump fault or full bottle):
a. Select System Alarms>[Select System Alarm], then push Next .
b. Select Action, then push Edit .
c. Select an option, then push OK .
Note: When the system alarms that follow occur, the relay or digital output changes state for only
4 seconds. For the other system alarms, the relay changes state continuously while the alarm is active.
• Program Start
• Program End
• Bottle Change
• Sample Complete
• Missed Sample
• Purge Error
• Distributor Arm Error
• Pump Fault
Option Description
Set Relay 1 (2, 3 or
4) Sets the selected relay to change state when the alarm is active. The normally closed
(NC) contact of the relay opens when the alarm is active. The normally open (NO)
contact of the relay closes when the alarm is active. The alarm is recorded in the alarm
log.
Set Digital Output
1 (2, 3 or 4) Sets the selected digital output to a closed switch or a logic low voltage when the
alarm is active. The alarm is recorded in the alarm log.
4. To select a channel setpoint alarm:
a. Select Channel Alarms>[Select Channel Alarm], then push Next .
Note: The number that follows a channel alarm identifies the source sensor. For example, Temp 2 is the
temperature measurement supplied by Sensor 2.
b. Select Action, then push Edit .
c. Select an option, then push OK .
Option Description
Set Relay 1 (2, 3 or
4) Sets the selected relay to change state when the alarm is active. The normally closed
(NC) contact of the relay opens when the alarm is active. The normally open (NO)
contact of the relay closes when the alarm is active. The alarm is recorded in the alarm
log.
Set Digital Output
1 (2, 3 or 4) Sets the selected digital output to a closed switch or a logic low voltage when the
alarm is active. The alarm is recorded in the alarm log.
Configure the analog inputs
1. Push MENU .
2. Select Hardware Setup>AUX and I/O Port>Analog Inputs>[Select Analog Input]>Setup Wizard.
3. Use the DOWN arrow to select Enable, then push Next .
4. Obey the prompts on the screen. Refer to Table 5 for descriptions of the settings.
Note: To set the analog input settings and calibration to the factory defaults, select Restore Defaults.
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