Analog Output - Siemens SITRANS CU02 Operating Instructions Manual

The individual relay functions in combination provide:
●
● high% and low% alarm
● high% and bound alarm
● low% and low-low% alarm
●
● bound 1 and bound 2 alarm
Note
If the SITRANS AS 100 sensor is located in areas with high RF noise, then the alarm
setpoints should be set to 0.50 V above or below the fault/no fault conditions.
5.4

Analog Output

The SITRANS CU 02 provides an isolated analog 4 - 20 mA output by calibration of the 4
and 20 mA levels to the operating span of the input signal (V
In the case where V
are factory set to nominal values of 2 and 22 mA respectively, providing indication of
overrange activity.
Damping is provided to slow the response of the analog output when rapid or minor
fluctuations in the process or machinery operation are encountered. The greater the
damping value (P85), the slower the response.
Security
The SITRANS CU 02 is factory shipped with security (P 1) disabled, allowing program
access. If it is desired to deny programming access (viewing access is not restricted),
security can be enabled by entering the enable code. If it is desired to regain programming
access, the disable code must be entered. Refer to Security Alteration.
Parameter Reset
A master reset (P99) is provided to automatically reset all programming parameters to their
factory values. However, if it is desired to reset an individual parameter, this can be done by
entering its factory value, as given in Parameter List.
SITRANS CU02
Operating Instructions, 03/2017, A5E40873245_AA
high% and high-high% alarm
low% and bound alarm
passes the lower and upper limits of the span, low and high mA limits
sens
Operation
5.4 Analog Output
) from the SITRANS sensor.
sens
19