HARTCOM-W2 User Manual
4/2/2018
Designed and Produced under
Page 14 of 71
ISO 9001:2008 Certification
1) Do not expose to flames or excessive heat (>85 deg.c)
2) Do not charge by any method other than that described above
3) Lithium Batteries do not
have a “memory” therefore they can be partially used and partially charged at any time,
in fact they prefer partial charge/discharge. Unlike NiCad batteries, you do not need to fully discharge and then fully
charge Lithium based rechargeables. Lithium batteries have a longer life if you only partially discharge them.
4) Do not leave Lithium batteries permanently plugged in on a trickle or standby charge. Once they are charged
disconnect them from the power source.
5) Store away from heat sources. A cool room (10
–
20 deg.c) is ideal, but do not store Lithium batteries at fridge or
freezer temperatures!
6) Do not leave lithium batteries fully discharged for long periods of time (weeks/months). If they are fully
discharged they should be recharged as soon as possible.
3.2 Starting the HART Communicator HARTCOM-W2
Press and hold for 4 seconds the power button (top left corner of the tablet).
If the tablet was previously shut down it will boot up Windows. If the tablet was previously asleep it will immediately
reawaken. If the Tablet does not respond the battery may be too low.
3.3 Connecting to HART devices
3.3.1 For wired HART devices (skip this step for HART-IP and
Wireless
HART devices)
a) Connect the Bluetooth HART Modem to the HART device/network
For communication with wired (4-
20mA based) HART devices you must have a suitable load resistance, or a 250Ω
Shunt/Loop resistor (supplied) must be placed in series with the device. Using the clips of the HART Modem connect
either: across the loop load resistor (A
–
B), or across the HART transmitter terminals (C
–
D). See the relevant Figure
1a, 1b or 1c below.
Figure 1a. Loop Powered HART Transmitter Connection
Figure 1b. 4-Wire HART Transmitter Connection
Loop
Power
Supply
+
-
HART
Transmitter
+
-
Loop Resistor
A
B
C
D
Loop Resistor
C
A
Power
Supply
+
-
HART
Transmitter
+
-
+
-
D
A
B
