Change To 0 To 20 Ma Output Range; Maintenance Menus - Hach Lange CL17 User Manual

5.2.3.1 Change to 0 to 20 mA output range

5.2.4 Maintenance menus

Adjust the recorder output minimum and maximum values using the analyzer keypad:
1. Press the key.
MENU
2. Scroll to menu and press
RECR DR
reading. Move to
REC HI
3. Press to change the displayed mg/L reading for
ENTER
to be changed will flash.
4. Change the digit or move to another digit. Appropriate values and selections are
shown below. When the value is correct, press
• REC LO—0.0 mg/L to 5.0 mg/L limits.
• REC HI— 0.0 mg/L to 5.0 mg/L limits.
• ON SYSTEM ALARM—Select minimum, maximum, or hold to define the recorder
output when a system alarm is initiated.
5. Press to return to the main menu. Press
EXIT
operation.
Set the lower end of the output range to 0 mA instead of 4 mA as follows:
1. Press the key then scroll to the
MENU
2. Scroll to
REC ADJUST
Note: A large number may be displayed for the minimum value, this number refers to counts, not
milliamps. Proceed with step 4.
3. Adjust the displayed value to 0. Press
return to normal operation.
The following selections allow the user to perform standard maintenance tasks. Use the
keys to scroll through the menu selections, then press
ARROW
displayed menu option.
• PRIME—This feature causes the analyzer to make 39 concurrent accelerated cycles
to prime the reagent lines. Press
analyzer will return to normal operation. To terminate the prime cycle before all 39
cycles are complete, press
• CLEAN—This feature stops the analyzer in the last portion of the measurement cycle.
Sample and reagents are left in the sample cell for cleaning purposes. The analyzer
remains in the clean mode for 60 minutes. To terminate the cycle earlier, press the
key. The analyzer will return to normal operation.
EXIT
• HOLD OUTPUTS—This feature allows the alarms to be locked out and the recorder
output to be held at its present level for maintenance purposes. Activate this feature
as follows:
a. Press then the
ENTER
will be flashing.
b. To deactivate the feature, and return to normal operation, press the
then the
DOWN ARROW
c. Press .
ENTER
d. Select and press
OFF
. The display will show
ENTER
or
ON SYSTEM ALARM
EXIT
menu. Press
SETUP
and press .
ENTER
to accept the value. Press
ENTER
to activate. At the end of 39 cycles, the
ENTER
. The analyzer will return to normal operation.
EXIT
key to activate for 60 minutes. The alarm LED
UP ARROW
key until
HOLD OUTPUTS
again.
ENTER
REC LO
.
or
REC LO REC HI
to accept.
ENTER
again to return to normal
.
ENTER
to select the
ENTER
is displayed.
Operation
and a mg/L
. The digit
twice to
EXIT
key
MENU
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