Liquid Controls SP2850 (MS-649) - Manual (Page 13)

Sponsler, Inc. Model SP2850-TC with MS649 Page 13 DOC#: MN-2850
ERROR MESSAGES
While programming and running the unit, various error messages may be displayed. The messages signal when a
programming or operating error has occurred. In some cases the error messages will be displayed until the error is
corrected.
PROGRAMMING ERRORS
PREWRONG: Will be displayed when the Prewarn value is greater than the Preset value. Re-enter the Prewarn
and Preset values correctly to clear the message.
HIGHHigh and Low values correctly to continue programming.
TMPWRONG: Will be displayed if the temperature ‘HIGH’ value is less than the `LOW’ value. Re-enter the High
and Low values to continue programming.
DENWRONG: Will be displayed if the density `HIGH’ value is less than the `LOW’ value. Re-enter the High and
Low values correctly to continue programming.
OPERATING ERRORS
SECURITY: Displays when the unit enters the security mode. The security feature monitors the input as described
in the ‘Definition of Menu Prompts’ (see SECUR##). To get the unit out of security, enter the 4 digit lockout code.
Be sure to check the input wiring and sending device to find why no pulses were received. NOTE: A Security Output
is available on units using current or voltage for compensation input. This output isn’t available on units using RTD
because they share a common terminal on the terminal block (Pin 8). The Security Output is an NPN (sinking)
transistor output internally pulled up to +5 VDC. This output will turn on when the unit enters security and remain on
until the security warning is cleared.
ERROR TP: Displays when the temperature input is defective or out of range. (I.e. below 4mA or above 20mA).
The unit uses the default temperature value when there is a temperature error. Pressing the `CLR’ button will clear
the message, but the unit will continue to use the default temperature value until the error is corrected.
ERROR DN: Displays when the density input is defective or out of range. (I.e. below 4mA or above 20mA). The
unit uses the default density value when there is a density error. Pressing the `CLR’ button will clear the message,
but the unit will continue to use the default density value until the error is corrected.