IM 1E10C1-E
4-8
4. BASIC OPERATING PROCEDURES
4.2.5
Auto Zero Mode
• Three ways of the auto zero adjustment can be done by using the infrared switches on
the converter, BT Terminal, or HART communicator.
Please refer to “8.1 Pre-Operation Zero Adjustment” in detail.
• The display can be changed into the Auto Zero Mode from any mode.
• The Auto Zero Mode is shown as follows (for 20sec.).
• When the Auto Zero Mode is finished, the display goes back into the Flow Rate
Display Mode automatically.
4.2.6
Indicator Error Mode
In the event the glass is stained or objects are placed near or on the glass, the switches
can be activated due to the infrared deflection. This will cause the "Password Input
Mode" to be displayed frequently and make the normal display mode unavailable. The
following comments relate to this possible occurrence.
* When the front glass of case is stained, please wipe out the glass by soft and dry
cloth.
* In case that each key keeps touching for more 120 sec. and it is continued, the
Password Input Mode is not available to enter.
* In case all keys are “OFF” for more 3 sec. , this mode is cancelled.
* This condition (the above-mentioned) is not an alarm, but the followings are shown
on LCD to indicate this condition.
(4 to 20 mA Output , Status Output , Flow Rate Indication Value and Self-check
Function work normally.)
* When these errors are raised, the display indicates alternately as follows.
%
<< Flow Rate is indicated for 4 sec.
<< Warning is indicated for 2 sec.
In case of the front cover is loosened, "dSPErr" may occur, so please make sure the
cover is always fastened tightly.
IMPORTANT
