Inovonics Wireless Corporation 3B6OTPMTX 사용자 설명서

Overview

Confidential

 6

The housing tamper switch and tamper pin have the same specification. 
Connecting the tamper pin to ground initiates the tamper condition.  Once a 
transition (tamper connected/disconnected from ground) is detected, no 
further transitions can be processed for a debounce time of 250 ms.

The removable terminal block and count pin have the same specification. On 
the terminal block, the outer terminal is the negative terminal if polarity is 
present from the connected meter. 

The count is incremented by connecting the count to ground or receiving a 
contact closure from a pulse-output meter via a wired connection. In general 
the contact closure should meet the following characteristics:

• a minimum switch output pulse width of 10 ms or longer.

• a maximum rate of one pulse every four seconds (slower is better).

• a closed impedance smaller than 1k ohm.

• an open impedance greater than 5 Mega ohms.

• hardware latched input transitions from the external device.  

Once a latched input is detected, no further transitions will be processed for a 
debounce time of 350 ms.

The count totalizer corresponds to the number of totalizer input pulses.  The 
counts accumulate until the number 9,999,999 is reached.  The totalizer will 
then go to zero on the next count.

The Inovonics pulse counting transmitter with extended life battery is used to 
count the number of pulses generated from a pulse-output device, such as a 
utility meter, and includes an extended life battery. The EN1501-XL is for use 
in Australia, New Zealand, and North America.

http://www.inovonics.com/pulse-counting-transmitter-with-extended-life-
battery.aspx