Ee figure 3-11 for o, E figure 3-12 fo, E figure 3-11 for o – Emerson 2400S User Manual
Page 22: Refer to figure 3-12 fo
18
Micro Motion
®
Model 2400S Transmitters
I/O Wiring – Model 2400S Analog Transmitters
Figure 3-11
Output voltage vs. load resistance – Internal power
Figure 3-12
Recommended pull-up resistor versus supply voltage – External power
24
22
20
18
16
14
12
10
8
6
4
2
0
0
20000
40000
60000
80000
100000
Hig
h
le
v
e
l outpu
t v
o
lt
a
ge (V
olts)
Load resistance (Ohms)
Open circuit output
voltage = 24 VDC ±3%
OPERATING REGION
3
400
4400
4000
3600
3200
2800
2400
2000
1600
1200
800
6
9
12
15
18
21
24
27
30
Supply voltage (Volts)
Exter
nal pu
ll-up
resi
stor r
a
nge (Ohms)
Recommended
resistor value range
Note: When using a discrete output to drive a relay, choose external pull-up to limit current to
less than 500 mA.