19
Pulse counting (mode 3)
In pulse count mode, the device counts incoming pulses and displays the
counting on its LCD screen. The counting is broadcast about every 45 se-
conds. The pulse frequency is limited to 2 Hz. A higher rate will inhibit the
counting. The cumulative count is stored into the sensor non-volatile memory
about every 10 minutes.
When batteries are changed, the cumulative count will be set to the latest
count. The counter can be reset by setting the sensor in device mode 4. In this
mode, the count will reset, and the sensor will continue in pulse count mode.
An example of this function is to count visitors who are passing an IR sesnor.
Pulse count reset (mode X)
A special mode to reset the Puls counter to zero
E
N
G
L
I
S
H
The analog signals
are connected between pin. 1 and 3
The Switch open or close signal
is connected between
pin 1 and 2
The Pulse counter
is connected between pin 1 and 3
The reference voltage of 2.046 Volt on pin 2 can be
used for general purpose
CONNECTING THE PRO-88msn
The PRO-88msn is always used in combination
with the JB-T1 junction box. The Junction box has
a 3 pin (1-3) terminalblock inside to which you
can connect 3 wires.
The Functions of the 3
pins are
Pin 1. + = Input
Pin. 2 S = + 2.046 Volt
Pin. 3 gnd = Gnd
Fig. 3. Connected PRO-88
Fig. 4. Terminalblock JB-T1
