
Command
Description
UPPER_MEAS
Sets the measuring mode for the upper display.
U_PRES_UNIT
Sets the upper pressure unit
VAL?
Returns the measured values
ZERO_MEAS
Zeros the pressure module
ZERO_MEAS?
Returns the zero offset of the pressure module
Table 7: Parameter units
Units
Meaning
MA
milliamps of current
MV
Voltage in millivolts
V
Voltage in volts
CPM
Frequency in cycles per minute
Hz
Frequency in Hertz
KHz
Frequency in kiloHertz
Ohms
Resistance in Ohms
Cel
Temperature in Celsius
Far
Temperature in Fahrenheit
Psi
Pressure in pounds per square-inch
InH2O4C
Pressure in inches of water at 4°C
InH2O20C
Pressure in inches of water at 20°C
CmH2O4C
Pressure in centimeters of water at 4°C
CmH2O20C
Pressure in centimeters of water at 20°C
Bar
Pressure in bars
Mbar
Pressure in millibars
KPal
Pressure in kiloPascals
InHg
Pressure in inches of mercury at 0°C
MmHg
Pressure in millimeters of mercury at 0°C
Kg/cm2
Pressure in kilograms per square-centimeter
Table 8: Error codes
Error Number
Error Description
100
A non-numeric entry was received where it should be a
numeric entry
101
Too many significant digits entered
102
Invalid units or parameter value received
103
Entry is above the upper limit of the allowable range
38