Hach NA5600 sc Na+, Maintenance And Troubleshooting Manual

Page: 23 / 390

1. Push diag , then select PERFORM TEST.
2. Select an option.
Option Description
REACT SOL
DELIVERY Starts the reactivation solution pump. The reactivation solution flows into the middle
chamber of the measurement cell.
Note: The measurement cell is the clear block where the electrodes are installed.
SAMPLE DELIVERY Sets the sample solenoid valve for the selected channel to open. The sample flows
into the overflow vessel.
Note: If the overflow vessel is full, the level of the water in the overflow vessel will
not change. To drain the overflow vessel, do the SAMPLE DRAIN test.
CAL STD DELIVERY Note: The CAL STD DELIVERY option is only available on analyzers that have the
auto calibration option.
Sets the calibration solution pump to on. The calibration solution flows into the
overflow vessel.
CONDITIONING
VALVE Sets the conditioning valve to open. The conditioning gas flows into the right
chamber of the measurement cell.
Note: The measurement cell is the clear block where the electrodes are installed.
SAMPLE DRAIN Sets the drain pump to on. The water in the overflow vessel drains out the chemical
drain tube.
MIXER Sets the mixer motor to on. The stir bar in the overflow vessel turns.
STATUS LED Sets the status indicator light to continuously cycle: yellow, red, green.
AIR PUMP Note: The AIR PUMP option is only available when the optional cationic pump is
installed.
Sets the cationic pump to on. The cationic pump pushes air into the conditioning
solution (DIPA) bottle. Refer to the
Product overview section of the installation
manual to identify the location of the cationic pump in the analyzer.
SELECT SCRIPT Note: The SELECT SCRIPT option is for Service use only.
Sets the analyzer to use the normal instrument script or the test script.
Start a 4–20 mA output or relay test
Start a 4–20 mA output or relay test to identify if a 4–20 mA output or relay operation is correct.
1. Push diag and select OUTPUTS.
2. Select an option.
Option Description
TEST 4–20 mA Sets the signal (mA) at the selected 4–20 mA output. Measure the current at the
4–20 mA output with a multimeter.
TEST RELAY Sets the selected relay to on (energized) or off (not energized). Measure the
resistance across the relay with a multimeter to identify if the relay is open or closed.
HOLD OUTPUTS Holds the outputs at the last value or sets them to the transfer value. ACTIVATION
—Select LAUNCH to hold the outputs at the last value or set them to the transfer
value. Select RELEASE to let the outputs operate normally.
SET OUTMODE —
Select HOLD OUTPUTS to hold the outputs at the last value. Select TRANSFER
OUTPUTS to set the outputs to the transfer value. Refer to the operations manual to
set the transfer value for the outputs.
SET CHANNELS —Select ALL to select all of
the channels. Select ANALYZER to select all of the channels for the selected
analyzer.
English 23