Endress+Hauser Proline Prowirl R 200 - Page 31

Proline Prowirl R 200 Electrical connection
Endress+Hauser 31
• R
B
≤
(U
S
- U
term. min
) :0.022 A
• R
B
≤500 Ω
0
100
200
300
400
500
12
14 16
18 20
22 24 26 28
U [V]
s
R
[ ]
b
W
1.1 1.21
30 32 34 36
35
A0020417

8 Load for a compact version without local operation
1 Operating range
1.1 For order code for "Output", option A "4-20 mA HART"/option B "4-20 mA HART, pulse/
frequency/switch output" with Ex i and option C "4-20 mA HART, 4-20 mA"
1.2 For order code for "Output", option A "4-20 mA HART"/option B "4-20 mA HART, pulse/
frequency/switch output" with non-Ex and Ex d
Sample calculation
Supply voltage of the supply unit:
–
U
S
= 19 V
– U
term. min
= 12 V (measuring device) + 1 V (local operation without lighting) = 13 V
Maximum load: R
B
≤ (19 V - 13 V) :0.022 A = 273 Ω
The minimum terminal voltage (U
term. min
) increases if local operation is used
(
→  30).
7.1.7 Preparing the measuring device
1. Remove dummy plug if present.
2. NOTICE! Insufficient sealing of the housing!
Operational reliability of the
measuring device could be compromised. Use suitable cable glands corresponding
to the degree of protection.
If measuring device is delivered without cable glands:
Provide suitable cable gland for corresponding connecting cable (→  24).
3. If measuring device is delivered with cable glands:
Observe cable specification (→
 24).