Diagnostics functions – Hach-Lange SI794 D tr User Manual User Manual
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Relay test (manual test of contacts)
• Press conf, enter code 5557
The relays are frozen. This state is indicated in the
display. The 4 digits in the display correspond to the
4 relays (as located on the terminal plate):
1. digit: R1
2. digit: R2
3. digit: AL
4. digit: CLN
Function test using arrow keys – see left column.
When exiting the function (enter), the relays are set
corresponding to the measured value.
Select a
relay
Specify current at output 1
• Press conf, enter code 5555
The current indicated in the main display for output 1
can be edited.
Select position using , edit number using ,
press enter to confirm. Then the entered value will
be shown in the secondary display.
The transmitter is in Hold mode.
Press conf, then enter to return to measurement
(Hold remains active for another 20 sec).
Diagnostics functions
These functions are used for testing the connected peripherals.
Display
Action / Remarks
Specify current at output 2
• Press conf, enter code 5556
The current indicated in the main display for
output 2 can be edited.
Select position using , edit number using ,
press enter to confirm. Then the entered value will
be shown in the secondary display.
The transmitter is in Hold mode.
Press conf, then enter to return to measurement
(Hold remains active for another 20 sec).
Test 0/1
Return to
measure-
ment
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