Practical Instrument Electronics 850 - Manual (Page 33)

Page 31
Pr
eliminar
y
Frequency Source
Choose this function to provide a frequency signal into any input
devices that measure frequency.
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 FREQ for the FUNCTION and 20KHZ, 10000HZ, 1000HZ
or 2000CPM for the RANGE.
Disconnect all input wires from the devices to be calibrated and
connect the PIE 850 to the input of the device matching polarity.
The green HZ SYNC LED pulses in synch with the output pulses
and may be used to calibrate optical pickups. The output signal
is a zero crossing square wave with a fixed amplitude of 6 V
peak-to-peak from -1 and + 5 V.
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 1
count increments by turning the knob
e . Press and turn the
knob for faster dialing with 100 count increments.
T/C
All mA∙ Read V
-
2 3
RTD
Ω
RTD
Ω
6 5
4
+
Source & Read Hz∙ mV
Source V∙ pH
- +
1
-
All Frequency
Connections
Frequency Receiver Input
Flowmeter
Transmitter
Computer
Logger
Controller
DCS
HI
8300.0
Hz
2 1 + -