Endura APA592
pH / Redox (ORP) transmitter
9 HART Communication
88
OI/APA592–EN Rev. E
9.4 HART Common Practice Commands
Command
No.
Description
Details
34
Write Damping
Enables the user to alter the PV damping value in seconds
35
Write the PV Range
Enables the PV (pH, ORP, pION or Ion Conc) low and high
range values to be set for the range.
38
Write Configuration
Reset
Enables the configuration changed flag to be changed.
40
Write Fixed Output Value
A value in the range of 3.8 to 21.5 can be written to fix the
output of the device.
A value of 0.0 should be written to fixed Output Value to
exit the device from fixed output mode.
41
Start Self Test
Performs self-test function on the device.
42
Master Reset
Device can be reset.
44
Write PV Units
PV unit (pH, mV, ppb, ppm, %, ug/l or mg/l)
ug/l = micro-grams/liter
mg/l = milli-grams/liter
45
Write Trim Loop Current
Zero
Enables user to trim the lower endpoint (for
example,~4.0mA) of the device's output.
46
Write Trim Loop Current
Gain
Enables user to trim the upper endpoint (for example,
~20.0 mA) of the device's output.
47
Write PV Transfer
function
User can alter the PV output linearity (used if a
function-generator is needed for output adjustment)
Table 9.2 HART Common Practice Commands