MR MSENSE DGA 2 - Commissioning in Existing Systems; Parameterization

7 Commissioning
Messko GmbH 2020 53BA4001150/10 EN MSENSE
®
DGA 2/3
7.3 Commissioning in existing systems
Messko GmbH recommends a field calibration of the device parameters to
ensure optimum operation, in particular with:
▪ Aged insulating oils
▪ Modified oils (e.g. the addition of additives)
▪ Oils that do not satisfy the standards ASTMD3486-091, IEC60296 or
IEC60422.
Here, an oil sample must be taken in accordance with the chapter "Taking oil
samples" [►Section 10.3, Page 70] and sent to Messko GmbH together
with the "SAMPLE DATA SHEET – OIL ANALYSIS". You will then receive a
recommendation for action from MESSKO for readjustment via the
MESSKO® MSET parameterization software.
7.4 Parameterization
Parameterization of the device is only possible in combination with the
MESSKO® MSET parameterization software, and is described in detail in
the corresponding operating instructions.
The set values for the gas carbon monoxide (CO) are only available for the
device version MSENSE® DGA 3.
The following settings can be configured for the parameters CO, H2
and H2O (as relative or absolute):
▪ Concentration warning limit
▪ Concentration alarm limit
▪ Gas formation rate warning limit
▪ Gas formation rate alarm limit
▪ Value for 4mA signal
▪ Value for 20mA signal
▪ Concentration action warning limit
▪ Concentration action alarm limit
▪ Gas formation rate action warning limit
▪ Gas formation rate action alarm limit
Other settings
▪ H2O reference
▪ Measurement interval
▪ Time stamp
▪ UNIX time stamp
▪ Service code
▪ Action maintenance information
▪ Modbus baud rate