Martel Electronics MC1210 - Manual (Page 48)

U_PRES_UNIT
Sets the unit for measuring pressure on the upper display. Add the unit after the command.
The available pressure units and their syntax are shown in Table 7. (Parameter Units). For
example:
U_PRES_UNIT MMHG sets the pressure unit to millimeters of mercury at 0°C
VAL?
Returns the value of any measurement taking place on the upper and lower display. For
example, if the upper display is measuring 5mA, and the lower display is measuring 10V, then
VAL? will return:
5.000000E-03, A, 1.000000E+01, V
ZERO_MEAS
Zeroes the attached pressure module. Enter the zeroing value in PSI after the command
when zeroing an absolute pressure module.
ZERO_MEAS?
Returns the zero offset or the reference value for absolute pressure modules.
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