SIGNAL IMPEDANCE
M4110/0519 IP211, EP211 SERIES
A
6
INPUT SIGNAL
OUTPUT RANGE
NOMINAL IMPEDANCE
(OHMS)
POTENTIOMETER RV1 SIZE
(OHMS)
4-20mA
3-15 PSIG
180
1000
4-20mA
3-27 PSIG
215
1000
4-20mA
3-120 PSIG
260
1000
4-20mA
2-60 PSIG
225
1000
0-5 VDC
3-15 PSIG
615
500
0-5 VDC
3-27 PSIG
530
500
0-10 VDC
3-120 PSIG
800
1000
0-5 VDC
2-60 PSIG
500
1000
4-20mA
6-30 PSIG
215
1000
BLACK
WHITE
RV1
121 Ω
R2
100 @ 25°C
Ω
COIL
300 Ω
J2
J1
I / P SCHEMATIC
RT1
R1
68 Ω
FIGURE 2
BLACK
WHITE
RV1
121 Ω
R1
100 Ω @ 25°C
COIL
300 Ω
J2
J1
E / P SCHEMATIC
The input impedance will vary depending upon the potentiometer setting of the “SPAN (RV1)”, (
SEE FIG. 2
). The I/P circuit design
consists of a resistor and potentiometer in parallel with the coil/flexure. The E/P circuit utilizes a potentiometer in series with the
coil/flexure. The following are some of the nominal impedences that would be measured across the signal leads of the average
calibrated transducer. These values are helpful when determining power requirements and for trouble-shooting.
