Hach IO9004 User Instructions page 16

• Program End
• Bottle Change
• Sample Complete
• Missed Sample
• Purge Error
• Distributor Arm Error
• Pump Fault
Option
Set Relay 1 (2, 3 or
4)
Set Digital Output
1 (2, 3 or 4)
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
Set Relay 1 (2, 3 or
4)
Set Digital Output
1 (2, 3 or 4)
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
Note: To set the analog input settings and calibration to the factory defaults, select Restore Defaults.
Setting Description
Select Source Type Selects the measurement that shows on the selected analog input. Options: Level, Velocity,
Flow, Temp, pH
Select Loop Scale Sets the analog range for the analog input. Options: 0–20 mA or 4–20 mA
Configure the analog outputs
1. Push MENU.
2. Select Hardware Setup>AUX and I/O Port>Analog Outputs>[Select Analog Output]>Setup
Wizard.
3. Use the DOWN arrow to select Enable, then push Next.
4. Obey the prompts on the screen. Refer to
Note: To set the analog output settings and calibration to the factory defaults, select Restore Defaults.
16 English
Description
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.
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.
Description
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.
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.
Table 4
Table 4 Analog input settings
Table 5
for descriptions of the settings.
for descriptions of the settings.