LB7104A Universal Input/Output (HART)

Teknik Veriler

Occupied slots

1

Connection

backplane bus

Rated voltage

U r 12 V DC , only in connection with the power supplies LB9***

Power dissipation

2 W

Power consumption

3 W

Arayüz

manufacturer-specific bus to standard com unit

Number of channels

4

Field device

pressure converter

Field device [2]

flow converter

Field device [3]

level converter

Field device [4]

Temperature Converter

Transmitter supply voltage

min. 15 V at 20 mA ; 21.5 V at 4 mA

Input resistance

15 Ω

Line fault detection

can be switched on/off for each channel via configuration tool , configurable via configuration tool

Short-circuit

factory setting: > 21 mA Can be parameterized in the range 0 ... 22 mA

Open-circuit

factory setting: < 3.6 mA Can be parameterized in the range 0 ... 22 mA

HART communication

yes

HART secondary variable

yes

Current

0 ... 20 mA short-circuit protected

Load

max. 750 Ω at 20 mA

Watchdog

output off 0.5 s after serious fault

Connection [2]

volt-free contact

Switching point: ON

> 2.1 mA

Switching point: OFF

< 1.2 mA