YOKOGAWA FC400G, User Manual, Page: 57 / 91

< 6. Operation >
6-8
IM 12F5A1-01E
6.3.2 Setting in the Setting Level
Unscrew four screws in the front panel of the FC400G converter to remove the converter case cover.
Then press the
＊
key to select the setting level.
(a) Output range setting (<*OUTPU> Mode)
When straight-line output is selected using SERVICE code 05, you need to set only the
concentration value corresponding to output of 100% . The setting range is 0.00 to 3.00 mg/L,
but the span should be set to at least 1.00 mg/L.
When remote range switching is turned ON using SERVICE code 10, then set the concentration
values corresponding to outputs of 100% for both ranges 1 and 2.
When two-line-segment output is selected using SERVICE code 05, and remote range switching
is also turned ON using SERVICE code 10, then set the concentration values corresponding to
outputs of 50% and 100% for both ranges 1 and 2. Shipping-time default settings are:
Range1 50% : 1.00 mg/L, 100% : 2.00 mg/L
Range2 50% : 1.50 mg/L, 100% : 3.00 mg/L
(b) Hold Parameters Setting (<*SET.HD> Mode)
Set various data for hold of output during maintenance.
• Output Hold ON/OFF Selection
Select *HLD.OF to disable output hold or *HLD.ON to enable output hold during maintenance.
• Selecting *HLD.ON causes output to be automatically held during calibration of zero point and /
or span, automatic washing, and entry into the setting level by pressing the
＊
key.
Further, output hold can be manually made in the <HOLD> mode in the operation level. When
the FC400G is in hold status, appears on the LCD.
Note: Selection of *HLD.OF in the setting level disables entry into the <HOLD> mode in the operation level.
• Hold Output Value Selection (when *HLD.ON is selected)
Select *HD .LST to set the value immediately preceding hold as hold output value or *HD.FIX to
set a fixed output value (preset value).
• Setting the fixed Output Value (when *HD.FIX is selected)
Set fixed output value in the range of 0.0 to 100.0%. At factory shipment, the fixed output value
is set to 50.0%.
(c) Wash / Auto zero calibration parameter setting (<*WASH>,<*AZ.CAL> Mode)
Wash parameter setting <*WASH> Mode
This mode is not generally used since the standard free available chlorine analyzer has no
washing function. Use this mode only if the washing function is added to the FC400G for special
specifications. Therefore, *T. OFF must generally be established.
Setting for Special Specification of the FC400G is as follows.
• Washing Parameter Setting / Manual Washing Selection
To set up various parameters for washing timer, select *TIMER. For manual Washing, select
*START .
Press the
YES
key. This starts washing and message display becomes “STOP”. To stop
washing, re-press the
YES
key.
• Washing Timer ON/ OFF Selection
If the washing timer is not used (for the standard free available chlorine analyzer), always select
*T. OFF. Select *T. ON only when the washing timer is used.
• Washing Interval Setting (when *T. ON is selected)
Set washing interval *INT H in the range of 0.1 to 24.0 hrs. The washing interval is set to 2.0 hrs
at factory shipment.