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A
M4110/0519 IP211, EP211 SERIES
E / P SCHEMATIC
RV1
BLACK
WHITE
SIGNAL IMPEDANCE
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.
INPUT SIGNAL
4-20mA
4-20mA
4-20mA
4-20mA
0-5 VDC
0-5 VDC
0-10 VDC
0-5 VDC
4-20mA
6
121 Ω
R1
J2
100 Ω @ 25°C
COIL
300 Ω
J1
OUTPUT RANGE
3-15 PSIG
3-27 PSIG
3-120 PSIG
2-60 PSIG
3-15 PSIG
3-27 PSIG
3-120 PSIG
2-60 PSIG
6-30 PSIG
FIGURE 2
I / P SCHEMATIC
BLACK
RV1
68 Ω
R1
WHITE
NOMINAL IMPEDANCE
(OHMS)
180
215
260
225
615
530
800
500
215
121 Ω
R2
J2
COIL
RT1
300 Ω
100
Ω
@ 25°C
J1
POTENTIOMETER RV1 SIZE
(OHMS)
1000
1000
1000
1000
500
500
1000
1000
1000
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