SICK FLOWSIC600

10 FLOWSIC600 · Addendum to Operating Instructions · 8017812/ZYM6/V1-6/2018-05 · © SICK Engineering GmbH
FLOWSIC600 DRU
2.2
Liquid indication diagnosis
FLOWSIC600 DRU maintains the diagnostic concept of FLOWSIC600 with self-monitoring
and User Warnings (refer to OI FLOWSIC600 chapter 2.3).
Additionally, the FLOWSIC600 DRU firmware is equipped with a diagnostic feature for
detection of wet gas inside the meter (liquid indication diagnosis, patent pending).
The liquid indication diagnosis uses real-time monitoring of multiple diagnostic parameters
of the FLOWSIC600 DRU in order to identify wet gas conditions (liquids in the gas stream
such as liquid hydrocarbons, water and oil). Liquids in the gas stream are usually undesired
in the gas production process and may require appropriate actions such as process
optimization or consideration for meter readings.
The liquid indication diagnosis typically detects wet gas with more than 0.5% of liquid
volume fraction in continuous gas flow conditions.
2.2.1 Activation of liquid indication
2.2.2 Signalization of liquid indication
Table 1 Signalization of liquid indication
Since the liquid indication diagnosis uses common standard diagnostic meter
parameters, the wet gas warning may be activated in parallel to other user-
warnings. In this case, a thorough analysis of the operating and process
conditions may be beneficial to find the root cause. Consult SICK for support.
The liquid indication diagnosis feature can be activated via Modbus command
(please refer to Short manual modbus FLOWSIC600).
LCD (SPU)
Warning 2008:
Wet gas
MODBUS Connection
#5069 (Bit 0x00000200UL) (refer to Short manual
modbus FLOWSIC600)
Meter logbook
Entry in Warning logbook [2] with time stamp “Wet gas
indication” (refer to OI FLOWSIC600 chapter 2.4.2).
If the liquid indication diagnosis generate a warning frequently, the activation
thresholds can be adjusted. Please contact SICK for support.
It is recommended to set the Warning logbook [2] to rolling in order to avoid
rapid filling of logbook in this case.