Practical Instrument Electronics 850 - Manual (Page 29)

Page 27
Pr
eliminar
y
Resistance Source
Choose this function to provide a simulated resistance into any
device that measures resistance.
Move the power switch w to SOURCE then Double Click the
EZ-DIAL knob to get into the Menu. Turn the knob to scroll
through the settings and press the knob to make your selection.
Select OHMS for the FUNCTION, 400Ω or 4000Ω for the
RANGE.
Disconnect all sensor wires from the devices to be calibrated
and connect the PIE 850 to the inputs of the device using 2, 3
or 4 wires.
Instantly output your SPAN and ZERO output settings by moving
the EZ-CHECK switch between HI and LO. You may also select
any third output setting (such as mid-range) using the SET
position on the EZ-CHECK switch. The output is adjusted in
0.01Ω/0.1Ω increments by turning the knob
e . Press and turn
the knob for faster dialing with 1.00Ω/10.0Ω increments.
T/C
All mA∙ Read V
-
2 3
RTD
Ω
RTD
Ω
6 5
4
+
Source & Read Hz∙ mV
Source V∙ pH
- +
1
-
2, 3 & 4 Wire Resistance Connections
Instrument with
Resistance Input
Controller
Transmitter
PLC
LO
250.00
Ω
2 1 + - + 3 4 -