Namur Electronics Cassette - Emerson Rosemount 2130 Reference Manual

Installation
January 2019
2.7.5

NAMUR electronics cassette

Figure 2-26. NAMUR (Light Blue Label)
Ex
Ex
Note
This electronics cassette is suitable for intrinsically safe applications and requires a certified isolating
barrier. See
This electronics cassette is also suitable for non-hazardous (safe) area applications. It can only be
interchanged with the 8/16 mA cassette.
Do not exceed 8 Vdc.
LED on continuously
28
OPERATION MODE
Dry On Mode
- +
Dry
Wet
8V
dc
Dry
Wet
1 2
Wet On Mode
I = 2.2 ... 2.5 mA
ON
I = 0.8 ... 1.0 mA
OFF
I
< 1.0 mA
FAULT
-
+
A certified intrinsically safe
isolating amplifier to IEC 60947-5-6
"Product Certifications" on page 53
High level, dry = on
Dry On Wet On
0.3 0.3
1
1
3
3
10
10
30
30
Seconds Delay
-
+
>2.2 mA
LED flashes every second
EN 50227 / NAMUR
Dry On Wet On
0.3 0.3
1
1
3
3
10
10
30
30
Seconds Delay
for intrinsically safe approvals.
-
+
<1.0 mA
LED on continuously
Reference Manual
00809-0100-4130, Rev DC
Low level, wet = on
Dry On Wet On
0.3 0.3
1
1
3
3
10
10
30
30
Seconds Delay
-
+
>2.2 mA
LED flashes every second
-
+
<1.0 mA
Installation