McCrometer ProComm HL - Inputs Menu Configuration

Menu
Position
Converter Function Code
Function
Name
Function Description
Access
Level
MCP
Command
5.5
[Hysteresis=%03]
Hysteresis Sets the hysteresis threshold set
for the minimum and maximum
ow rate alarms. The value of this
parameter is expressed as percentage
of the full scale value and may be set
from 0 to 25%.
AL3 [ATHYS]
5.6
[mA v.alarm=%000]
Current
output value
in case of
failure
The output current signal can be
specied by the user in case of
failure of either, empty pipe, coils
interrupted, or ADC error.
AL3 [OCACV]
The signal current is set as a percentage (0 to 125%) of the 0/4-20mA current. 125% corresponds to 24mA
and does not depend on the selected range (0-20/4-20mA). The NAMUR NE43 recommendation suggests
an alarms signalling value for the current output lower than 3.6mA (<18%) or greater than 21mA (>105%).
It would be preferable to set the function to 10%. This would bring the current to 2mA in the event of the
aforementioned faults and allow the diagnostics shown below:
• Current < 2mA - 5%: line interrupted, power supply failure or faulty converter
• 2mA -5% * current * 2mA + 5%: hardware alarm;
• 4mA * current * 20mA: normal working range;
• 20mA < current * 22mA: out of range, measure above 100% out of range
5.6 Menu 6 - Inputs
Menu
Position
Converter Function Code Function Name Function Description
Access
Level
MCP
Command
6.1
[T+ reset=OFF]
[T+ reset=OFF] When this function is enabled, the
related totalizer + may be reset
through the on/o input.
AL3 [VTTPE]
6.2
[P+ reset=OFF]
[P+ reset=OFF] When this function is enabled, the
related totalizer + may be reset
through the on/o input.
AL3 [VTPPE]
6.3
[T- reset=OFF]
[T- reset=OFF] When this function is enabled, the
related totalizer - may be reset
through the on/o input.
AL3 [VTPNE]
6.4
[P- reset=OFF]
[P- reset=OFF] When this function is enabled, the
related totalizer - may be reset
through the on/o input.
AL3 [VTTNE]
6.5
[Count lock=OFF]
[Count lock=OFF] Enables the totalizers counting
lock. When this function is active,
when applying a voltage to the
on/o input terminals, the system
stops the totalizers no matter
which is the ow rate.
AL3 [TCLIE]
30124-60 Rev. 1.2 | 16DEC2019
Page 27
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