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Limits 
P836 mA Low Limit 
This parameter sets the lowest  value that the mA output will drop to, the 
default is 0mA, but you can override this if the device you connect to cannot 
for example accept less than 2mA, yet you want to use the 0-20mA range. 
Default = 0.00mA 
P837 mA High Limit 
This parameter sets the highest value that the mA output will rise to, the 
default  is  20 mA,  but  you  can  override  this  if  the  device  you  connect  to 
cannot for example accept more than 18 mA, yet you want to use the 0-20 
mA range. Default = 20.00mA 
Trim 
P838 mA Low Trim 
If the remote device you are connected to is not calibrated, and not showing 
the correct low value (reading), 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 (reading) on the remote 
device that the mA output is connected to. 
P839 mA High Trim 
If the remote device you are connected to is not calibrated, and not showing 
the correct high value (reading), 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 (reading) on the remote 
device that the mA output is connected to. 
Failsafe 
P840 mA Fail-safe Mode 
This parameter determines what happens to the mA output in the event of 
the  unit  going  into  fail-safe  mode.  The  default  is  to  do  the  same  as  the 
system fail-safe (P808), but this can be overridden to force the mA output 
to an independent fail-safe mode as follows: