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
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