Pulsar dBi 10, Инструкция по эксплуатации

Страница: 46 / 55

DBI (HART) INSTRUCTION MANUAL
46
mA Output
P834 mA Low Level
This parameter sets, in Measurement Units (P104) , the value of ‘level’,
‘distance’ or ‘space’, depending on the selected Mode of Operation (P100) ,
at which 4mA will occur.
P835 mA High Level
This parameter sets, in Measurement Units (P104) , the value of ‘level’,
‘distance’ or ‘space’, depending on the selected Mode of Operation (P100 ),
at which 20 mA output will occur .
P838 mA Low Trim
If the device you are connected to is not calibrated, and not showing the low
value, then you can trim it using this parameter. You can either type in the
offset directly or use the arrow keys to move the output up and down until
you get the expected result on the device that is connected.
P839 mA High Trim
If the device you are connected to is not calibrated, and not showing the
high value, then you can trim it using this parameter. You can either type in
the offset directly or use the arrow keys to move the output up and down
until you get the expected result on the device that is connected.
P808 Fail-safe Mode
By default, if a fail-safe condition occurs, then the display, relays and the mA
output are held at their last
known values until a valid reading is obtained.
If required, then you can change this so that the unit goes to high (100% of
span), or low (empty) as follows:
OPTION DESCRIPTION
1 = Known (Default) Remain at the last known value
2 = High Will fail to the high value (100% of Span)
3 = Low Will fail to the low value (0% of Span)
4 = Very High Will fail to an output value of 22mA
5 = Very Low Will fail to an output value of 3.75mA