5
ELECTRICAL CONNECTION INDICATOR M10
26
BW25
www.krohne.com
10/2008 • 4000432301 MA BW25 R01 en
Load for HART
TM
communication
The maximum load resistance is calculated as follows:
Parametrization
The M10 electronic indicator can be parametrized via HART
TM
communications. DD (Device
Descriptions) for AMS 6.x and PDM 5.2 and a DTM (Device Type Manager) are available for
parametrization (download center at www.krohne.com).
The current level can be transmitted using the integral HART
TM
communications. Two limit
values can be monitored.
INFORMATION!
The power supply has to be able to supply a minimum of 22 mA.
INFORMATION!
For HART
®
communication a load of at least 230 ohm is required.
DANGER!
Use a twisted two-core cable to prevent electrical interference from impeding the DC output
signal.
In some cases a shielded cable may be necessary. The cable shield may only be earthed
(grounded) at one place (on the power supply unit).
MA_BW25_R01_en_PRT.book Page 26 Thursday, October 30, 2008 3:49 PM
