Honeywell ERX350 User Manual page 40

2 ERX350 Installation
2.8 Digital Input / Output Wiring
alarm pulse. Use of channel D (NC) allows for a cut wire to be interpreted as an alarm condition to the
AMR device.
Volume Pulse Outputs
ERX350 provides three Form-A pulse outputs (channels A, B, and C) for volume output pulses.
Volume pulses can correspond to either uncorrected volume (as counted in item 2) or corrected volume
(as counted in item 0). The type of volume pulse (and whether the channel is enabled) is configured
through items 93-95.
The "weight" of each pulse (e.g. whether a pulse corresponds to 10 cubic feet or 1 cubic meter) is
configured via items 1193-1195.
Note: Note: In prior Mercury products the pulse weight was configured differently through items 93-
95. These are now read-only values provided for reference.
Pulse output timing is configurable via items 1014, 1015, and 1024. Various pulse ON and OFF times can
be chosen. Default is a pulse ON time of 62.5 milliseconds and a pulse OFF time of at least 62.5
milliseconds, for a minimum pulse period of 125 milliseconds.
Pulse Output Configuration Summary
Item
Channels
functions
A NA
B NA
Enable/Type 95
C
Timing
Alarm
D Channel On
time
Honeywell
2023
Item
Parameters
Numbers
3 = Off
4 = Alarm
100 ms
Default =
1016
10 seconds
Descriptions
Enable or disable alarm functionality as needed.
Fixed alarm pulse width. Since this channel is
Normally Open, the channel goes closed for this
duration on an alarm event.
Alarm pulse width. Since this channel is Normally
Closed, the channel goes open for this duration on
an alarm event.
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