Quick Start Guide
5
August 2015
1.4 Environmental considerations
To ensure maximum transmitter life, avoid extreme temperatures and excessive
vibration. Typical problem areas include the following:
High-vibration lines with integrally mounted transmitters.
Tropical/desert installations in direct sunlight.
Outdoor installations in arctic climates.
Remote-mounted transmitters may be installed in the control room to protect
the electronics from the harsh environment and to provide easy access for
configuration or service.
Step 2: Handling and lifting
Handle all parts carefully to prevent damage. Whenever possible, transport
the system to the installation site in the original shipping container.
PTFE-lined sensors are shipped with end covers that protect it from both
mechanical damage and normal unrestrained distortion. Remove the end
covers just before installation.
Keep the shipping plugs in the conduit connections until you are ready to
connect and seal them.
The sensor should be supported by the pipeline. Pipe supports are
recommended on both the inlet and outlet sides of the sensor pipeline. There
should be no additional support attached to the sensor.
Additional safety recommendations for mechanical handling:
- Use proper PPE (Personal Protection Equipment) including safety glasses
and steel toed shoes.
- Do not drop the device from any height.
Table 2. Electrical Data
Rosemount 8732EM Flow Transmitter
Power input 90–250VAC, 0.45A, 40VA
12–42VDC, 1.2A, 15W
Pulsed circuit Internally powered (Active): Outputs up to 12VDC, 12.1mA, 73mW
Externally powered (Passive): Input up to 28VDC, 100mA, 1W
Modbus output circuit Internally powered (Active): Outputs up to 3.3VDC, 100mA, 100mW
Termination resistors Typically 120 ohms. Refer to the MODBUS over Serial Line Specification &
Implementation Guide (http://www.modbus.org) for more details.
Um 250V
Coil excitation output 500mA, 40V max, 9W max
Rosemount 8705-M and 8711-M/L Sensor
(1)
1. Provided by the transmitter
Coil excitation input 500mA, 40V max, 20W max
Electrode circuit 5V, 200uA, 1mW
To Next Page
Loading...
