Table of Contents
Advertisement
Differentiating explosion-proof and intrinsically-safe sensors
In addition to different ATEX markings, explosion-proof and intrinsically-safe
sensors can also be distinguished by the color of their sensor pack:
■
Explosion-proof sensor: unpainted stainless steel sensor equipped with a
sintered metal piece (2 and 4).
■
Intrinsically-safe sensor: blue stainless steel sensor equipped with a
protective Teflon membrane (1 and 3).
Figure 3: intrinsically-safe and explosion-proof sensors.
Displays and indicator lights
Item
Description
1.
Green power indicator light.
2.
Orange fault indicator light.
3.
Red level 1 alarm indicator light.
4.
Red level 2 alarm indicator light.
5.
LCD digital display, backlit.
6.
Infrared receptor for the signal coming from the IR20 remote control. See
Infrared remote control on page 11.
7.
Level 1 and level 2 alarm icons. The icons blink in the event of an alarm, but
changes to a solid icon once the alarm is acknowledged using the IR20 remote
control.
8.
Maintenance/fault icon (sensor, electronic, connection fault etc.).
9.
Text field (type of gas, unit, configuration-related text).
Figure 4: front view.
2 – Transmitter Overview
7
Hide quick links:
Advertisement
Table of Contents
