Field Xpert
4 (Connection via) VIATOR Bluetooth modem
Hauser
11
4.2
VIATOR Bluetooth modem - Getting Started
1 The VIATOR Bluetooth modem requires three AAA alkaline batteries, which are included in
the scope of delivery. Insert them into the Bluetooth modem, making sure that the polarities
are correct. Replace the lid and secure the battery compartment by tightening the screw.
2 Connect the Bluetooth modem to a HART device via a load resistor or RN211B (Ex version).
(see point 4.3.1)
3 Switch on the PDA and activate Bluetooth communication in the iPAQ Wireless menu. Now
switch on the Bluetooth modem.
4 Open the “Device Xpert” configuration software and select “Device”, “Scan” in the main
menu. Select the VIATOR Bluetooth modem (it has already been preconfigured), and start the
scan. It is now possible to configure and diagnose the connected HART device quickly and
easily.
!
Note!
• To save battery power, we recommend that you switch off the modem when it is not in use.
4.3
VIATOR Bluetooth modem - Detailed information
4.3.1
Connecting the modem
Field Xpert communicates with a HART device via the VIATOR Bluetooth modem.
The connection between the Field Xpert and the modem is wireless. For the connection between
the modem and the HART device, you have two options:
Connection via load
resistor
Fig. 4-2: Connection via load resistor
Connection via RN221B
(Ex version)
Fig. 4-3: Connection via RN221B (Ex version)
F5
F1
F2
F3
F4
OK
Field Xpert
+
-
+
-
Hart device
Power supply
Two-wire power supply
Status
Power
Load resistor
250 - 1100 Ohm
F5
F1
F2
F3
F4
OK
Field Xpert
+
-
Hart device
RN221B (Ex version)
Two-wire power supply
Status
Power