Power Supply; Computer Interfacing Via Rs485 Link; Figure 15: Endurance® Series Labeled Terminal Block - Fluke endurance series User Manual

Endurance® Series
Users Manual
5.2.3.3. Endurance® specific terminal block
An Endurance® specific terminal block is available to attach the 12-wire color-coded sensor
cable via the terminal block to the process world.
Figure 15: Endurance® series labeled terminal block

5.2.4. Power Supply

Connections from a nominal 24VDC (500 mA or higher) power supply attach to the appropriate
terminals on the electronic enclosure's terminal strip.
Isolated power is required, and the appropriate manufacturer supplied
power supply accessory provides this. Beware of use of other power
supplies, which may not provide the necessary isolation and could cause
instrument malfunction or damage!

5.2.5. Computer Interfacing via RS485 link

The distance between the sensor and a computer can be up to 1200 m (4000 ft.) via RS485
interface. This allows ample distance from the harsh environment where the sensing system is
mounted to a control room or pulpit where the computer is located. The USB/RS485 Interface
Converter allows you to connect your Endurance® sensor to computers by using an USB
interface.
With auto configuration, the converter is able to automatically configure RS485 signals without
external switch setting. The converter is equipped with 3000 VDC of isolation and internal
surge-protection to protect the host computer and the converter against high voltage spikes, as
well as ground potential difference. When the converter is connected the computer gets one
virtual COM port.
Technical Data
Power supply
Speed
RS485
Terminal screwed
USB connector
20
5 VDC direct from USB port
max. 256 kBit/s
4 wire (full duplex) and 2 wire (half duplex)
accepts 0.05 to 3 mm² (AWG 13 to AWG 30)
type B (supplied with type A to type B cable)