YSI IQ S ENSOR N ET DIQ/S 182 XT - Manual (Page 211)

MIQ/CR3; DIQ/CR3 Settings
4 - 39 ba76032e01 01/2012
4.8 Behavior of linked outputs
4.8.1 Behavior in case of error
For linked relay outputs or current outputs, you can determine the
behavior of the outputs in case of errors.
Depending on the use of the output, the behavior in case of errors is set
in the following menus:
Error events The defined behavior occurs in the case of the following events or
conditions:

The linked sensor does not supply a valid measured value
(display of Init, Error, "-----", or OFL)
 Communication of the MIQ/CR3; DIQ/CR3 with the IQ S ENSOR N ET
controller is disturbed for longer than 2 minutes.
 The supply voltage for the MIQ/CR3; DIQ/CR3 is too low.
 In the Recorder function, the measured value of the linked sensor is
outside the range between Start value and End value.
Freezing the states of
the outputs
Independent of the specified behavior at error, the following conditions
lead to the freezing of the output states:
 The linked sensor is in the maintenance condition
(display of Cal, Clean, or a flashing measured value).
 Communication of the MIQ/CR3; DIQ/CR3 with the IQ S ENSOR N ET
controller is disturbed for a short time. After the malfunction has
lasted for 2 minutes the output changes to the specified behavior in
the case of an error.
Resumption of the
normal function
The relay output or current output automatically returns to its normal
state as soon as all error conditions are over and all conditions causing
a freezing of outputs are cleared.
Output menu
Frequency controller Frequency with error (see section 4.5.5)
Pulse-width contr. Error pulse width (see section 4.5.6)
Recorder Current with error (see section 4.6.1)