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Practical Instrument Electronics
82 East Main Street Suite 3.14 • Webster, NY 14580 Tel: 585.872.9350 • Fax: 585.872.2638 • [email protected] • www.piecal.com
Operating Instructions
Milliamp Receiver Input
Controller
Transmitter
Computer
Logger
I/P
DCS
OFF
OVERLOAD
Double Click
Menu
HI
SET
LO
SOURCE
MAX
READ
MIN
READ
Push & Hold
to
Store/Step
Push & Turn
for
Fast Dialing
Diagnostic RTD &
Milliamp Calibrator
2, 3, 4 Wire Detection
Loop Leak Detect ∙ Transmitter Supply
mA
20.000
5 6
+
-
HART
SOURCE
HI
mA SOURCE/ % SOURCE (Percent of 4 to 20 mA)
Choose this function to provide an output from 0.000 to 24.000 milliamps. The compliance voltage
is a nominal 24 VDC to provide the driving power to your milliamp receivers.
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
mA
for the
FUNCTION
and
SOURCE
for the
MODE
. Choose either
mA
or
%
and whether you need
the 250
Ω
HART resistor active in the loop.
Connect the output leads of the PIE 311Plus to the inputs of the device being calibrated, making
sure to check polarity. Red lead to the plus (+) input and black lead to the minus (-) input.
Instantly output your SPAN and ZERO output settings by moving the EZ-CHECK switch between HI
and LO (defaults to 20 & 4 mA). 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 0.001 mA (0.01%)
increments by turning the knob
e
. Press and turn the knob for faster dialing with 0.100 mA (1.00%)
increments.
OFF
OVERLOAD
Double Click
Menu
HI
SET
LO
SOURCE
MAX
READ
MIN
READ
Push & Hold
to
Store/Step
Push & Turn
for
Fast Dialing
Diagnostic RTD &
Milliamp Calibrator
2, 3, 4 Wire Detection
Loop Leak Detect ∙ Transmitter Supply
Milliamp Output Signal
Controller
Transmitter
P/I
DCS
mA
19.997
5 6
+
-
HART
READ
READ mA, READ % (Percent of 4 to 20 mA)
Choose this function to measure from 0.000 to 24.000 milliamps or -25.00 to 125.00%.
Move the power switch
w
to READ 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
mA
for the
FUNCTION
and
SOURCE
for the
MODE
. Choose either
mA
or
%
and whether you need the
250
Ω
HART resistor active in the loop.
Connect the red input lead (+) of the PIE 311Plus to the more positive point of the break and the
black input to the more negative point.
Signals below 0 mA or open circuits are indicated by 0.000 mA (-25.00%) on the display. Signals
above 24 mA are current limited by protection circuitry with “OVERRANGE” flashed on the display
and the red OVERLOAD LED lit.
The PIE 311Plus measures the input signal and constantly updates the display with the current
reading. Move the EZ-CHECK switch
q
to MAX to see the highest reading and to MIN to see the
lowest reading. Press and hold the knob
e
to clear the MAX and MIN readings.
All Milliamp Connections