Martel Electronics 135 - Manual (Page 38)

Software versions prior to 03.35 use the 4°C conversion temperature.
The factors used by the Pressure Module to convert from PSI to other
engineering units are listed below.
2.036 “Hg @0°C
51.715 mmHg @0°C
6.8948 KPascals
68.948 milliBars
0.068948 Bars
27.681 “H2O @4°C
27.707 “H2O @60°F
27.730 “H2O @20°C
70.310 cmH2O @4°C
70.376 cmH2O @60°F
70.433 cmH2O @20°C
When the OPT key is pressed a subsequent time(s), the calibrator
checks the ID and serial number of the attached module. If these
match the previous values, the module is activated immediately,
bypassing the title and serial number displays.
The Pressure Module is capable of operating as an input or output
function, even though it is a measurement only device. This allows
simultaneous measurement of pressure and milliamps if desired or,
pressure measurement and milliamp generation.
To operate the Pressure Module as an input function, press the OPT key
while the calibrator is in the input mode. This will permit any allowable
output function to be active simultaneously with pressure
measurements.
To operate the Pressure Module as an output function, press the OPT
key while the calibrator is in the output mode. This will allow pressure
readings to be displayed on the output side, and milliamps to be
displayed on the input side. In this mode, the calibrator is actually
Input Functions
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