Functional Block Diagram of the PEAK switch settings
3
.
PEAK
Interface I/O
Connections
Pin assignments for the 3
7
00P board's
8
-pin I/O connector (shown in Fig. 1)
functional description
Pin Number
Function
1
HAVE P
EAK
Output
Logic Signal, indicates a Peak
has been
detected.
2
TRACK
or
PEAK
Input
Logic Signal to Clear
(Track)
or
to
Arm for
a
Peak
capture function
3
TRACK
or
HOLD
Input
Logic Signal to HOLD the Peak reading. Must be in Track
Mode
to clear Peak
(Pin 2
false, not grounded)
4
LOGIC COMMON
Common for Logic signal activation
5
DISPLAY - LIVE
or
PEAK
Reading
6
FRONT PANEL TARE
for Display of
PEAK
or LIVE signal
Input
Logic S
i
gnal to use the front panel TARE switch for
PEAK
or
LIVE display reading
8
PEAK
ANALOG
SIGNAL
Analog Output -
Holds
PEAK
analog value when in PEAK
mode;
follows analog input
continuously when in TRACK
mode
. Full scale level is determined by the 3700 main units
output selection - +/- 5V or +/- 10V.
I
nput
Logic Signal to select Live Reading or Peak Reading for front panel display
7
ANALOG COMMON
Common for analog signal reference
Page
8
Page
3
Output
Output
Input
Input
Input
Input