Справочник Пользователя для Emerson 308014EN
Rosemount Tank Radar REX
Chapter 8 Junction Boxes
Chapter 8 Junction Boxes
8-6
Installation Manual
308014EN, Edition 4
May 2013
8.3.2
Junction Box JB 36/42
JB36 and JB42 are used for intrinsically safe connection of up to 14
temperature sensors to a Data Acquisition Unit (DAU). 12 sensors for JB
36 if 3-wire connection is used.
temperature sensors to a Data Acquisition Unit (DAU). 12 sensors for JB
36 if 3-wire connection is used.
JB 36 and JB42 have three openings for M25 glands, suitable for 9-16
mm cable diameter.
mm cable diameter.
Temperature sensors are connected to the JB 36/42 Junction Box and
the DAU via cable as illustrated in Fig. 8-7.
the DAU via cable as illustrated in Fig. 8-7.
If the DAU is situated on the tank top, temperature sensors can be
connected directly to the DAU.
connected directly to the DAU.
Figure 8-7.
Connection of temperature sensors to JB 36/42
via cable.
via cable.
Temperature Sensor
Pt 100 / Cu 90 (up to
14 sensors)
DAU
Connection to a
DAU for up to 14
temperature
sensors
JB36_T
emp