3.1
Engineering units
The Rosemount 4390 Wireless Transmitter supports only engineering units
according to the International System of Units (SI).
The following engineering units are used during configuration and
commissioning:
Table 3-1: Supported engineering units
Variable
Unit
Electrical resistance
mΩ (milliohms)
Electrical current
mA (milliamperes)
Voltage
V and mV (Volts and millivolts)
Length / thickness
µm (micrometers)
Battery life
days
Probe life
% (percentage)
Corrosion rate
mm/year (millimeters per year)
Temperature
°C (degrees Celsius)
3.2
Default factory configuration
The Rosemount 4390 Wireless Transmitter is delivered with a default factory
configuration, that consist of default values for each parameter that may be
changed to match with the application intended for the device.
The default factory configuration values are presented in the table below:
Table 3-2: Default factory configuration
Variable
Unit
Tag and long tag
none
Network ID
1229
Join key
44555354, 4e455457, 4f524b53, 524f434b
Update rate
Burst messages 1, 2 and 3: 60 seconds
Probe type
- 4391: ER corrosion probe
- 4392: 4 elements ER sand/erosion probe
Acquisition rate
10 minutes
Input parameters
Element Thickness 250 µm
Alerts
.
April 2021
Quick Start Guide
Quick Start Guide
9
