Quick Installation Guide
00825-0100-4825, Rev CA
February 2006
Rosemount 248
S
TEP
3: S
OFTWARE
I
NSTALLATION
(248C
ONLY
)
1. Install the 248C software
• Place the 248C CD-ROM in the drive
• Run setup.exe from Windows NT, 2000, or XP
2. HART interface Box (248C1 option): Connect the HART Interface
Box to PC and 248 transmitter per instructions located on the
HART Interface Box label
3. Install Serial HART modem (248C2 option) or USB HART modem
(248C3 option). Please see instructions accompanying modem
hardware.
4. For USB modem (248C3 option): Upoin first use, configure
appropriate COM ports within 248C software by selecting “Port
Settings” from the “Communicate” menu. The USB modem driver
emulates a COM port and will add to available port selections in the
software’s drop-down box. Otherwise software defaults to first
available COM port, which may not be correct.
S
TEP
4: C
ONNECT
T
HE
W
IRING
• Wiring diagrams are located on the top label of the transmitter.
• An external power supply is required to operate the transmitter.
• The power required across the transmitter power terminals is 12 to
42.4 V dc (the power terminals are rated to 42.4 V dc). To prevent
damaging the transmitter, do not allow terminal voltage to drop
below 12.0 V dc when changing the configuration parameters.
Power the Transmitter
1. Connect the positive power lead to the “+” terminal. Connect
the negative power lead to the “–” terminal.
2. Tighten the terminal screws.
3. Apply power (12 – 42 V dc).
00825-0100-4825.fm Page 9 Wednesday, February 8, 2006 1:53 PM
