Specifications

MI 611-211 – October 2005 3. Operation
12
Error Messages
The 870IT will display one of several messages when a problem occurs. These are summarized
below:
Flashing Display: Occurs when there are not enough significant digits on the display to display a
number. For example, if the PRIMARY SCALE was configured as 99.99 and a measurement of
100 was received, the display would flash +99.99.
CAL ERROR: Occurs when a limit condition was exceeded during an attempted calibration.
CAL appears on the top line and ERROR on the bottom line of the display.
XMTR ER: Occurs in Measure mode only to indicate a transmitter problem. The transmitter is
still configurable but measurements are held at the failsafe value if set.
PROBE ER: Occurs in Measure mode only when one of the following probe errors occurs: Glass,
Lowslope, Coat, Leakage, Preamp, Aging, ATC Short, and ATC Open. For more information, see
“Diagnostics” on page 15. Message appears on the bottom line of the display and flashes
alternately with the bottom line measurement. The transmitter is still configurable. For probe
errors of ATC Short or ATC Open, measurements are held at the temperature default value if set.
CONFIG ER: Occurs in Measure mode only when one of the following configuration errors
occurs: Calibration Required, 4-20 Range, Measurement Range, and Compensation Range. For
more information, see “Diagnostics” on page 15 Message appears on the bottom line of the
display and flashes alternately with the bottom line measurement.
ER DATA: Occurs after you change a value and try to enter it with the ENTER key. Message
appears on the bottom line of the display for 1 to 2 seconds and then automatically returns to the
last legal value. The top line does not change from the previous edit prompt. Situations causing
this message and appropriate responses are:
1. New value is out of range.
2. The slope of a chemical composition curve has changed sign.
3. The first value of a compensation point pair (TEMPx in TEMPCOMP or ABSx in
CHEMCOMP) was entered that was not greater than the last one.
STATUS Key Places transmitter in Status mode. This enables you to view the
measurement and system parameters and thus assess the
performance of the loop.
DIAGnostics Key Places transmitter in Diagnostic mode. This enables you to further
identify specific errors and possible solutions to an error flagged in
measurement mode.
Direction (Arrow) Keys Move you through the structure diagram and subsequent menus and
values. They may be used to increment one position at a time, or to
move through a menu or string of values by holding a key in the
depressed position.
ENTER Key Enters the menu item or value selected.
Table 3. Indicators and Controls (Continued)
Control/Indicator Function