Moore Industries IST, Руководство пользователя

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IST
Page 5
The Interface Solution Experts
Figure 2. Calibrating the IST
Figure 3. Calibrating the Dual IST
ZERO
SPAN
ISOLATING SIGNAL
TRANSMITTER
SIGNAL
SOURCE
+
–
VOLTMETER
+
_
SEE NOTES
117, 230
or 240 VAC
POWER SOURCE
(SEE NOTES)
NOTES:
1) Appropriate input power
rating is listed in the unit's
model number.
2) Use a 240
Ω
load resistor
for 4-20 mA units; 100
Ω
load
resistor for 10-50 mA units.
For DC powered units, substitute:
DC DCC GND
For DC powered units, substitute:
DC DCC GND
POWER
SOURCE
117, 230, OR
240 VAC
OR
24VDC
(SEE NOTES)
ZERO
SPAN
IST
ISOLATING SIGNAL
TRANSMITTER
ZERO
SPAN
–
–
–
–
+
+
+
+
A B
SIGNAL
SOURCE
VOLTMETER
SIGNAL
SOURCE
VOLTMETER
NOTES:
1) Appropriate input power
rating is listed in the unit's
model number.
2) Use a 240
Ω load resistor
for 4-20 mA units; 100
Ω
load
resistor for 10-50 mA units.