Measurement Specialties 9116 user manual Transducer Coefficients Description Datum Type

Pressure Systems, Inc.Model 9116 User’s Manual

	cc		Transducer Coefficients Description		Datum
					Type
33		Temperature 6 Temperature Output voltage at 0 psi			FLOAT
34			(reserved) Temperature 7 Temperature Output voltage at 0 psi		FLOAT
35			Temp Vs Pressure Correction coefficient	(t0)	FLOAT
36			Temp Vs Pressure Correction coefficient	(t1)	FLOAT
37			Temp Vs Pressure Correction coefficient	(t2)	FLOAT
38			Temp Vs Pressure Correction coefficient	(t3)	FLOAT
	4D		Pressure Voltage Gain Index		INTEGER
	4E		Temperature Voltage Gain Index		INTEGER
	5F	Current Calculated Pressure (PSI)			FLOAT

The User Defined Date field (cc=07) is also a 32-bit integer which may be encoded in a similar manner. Possible uses are to indicate the date of last user zero and/or span calibration or possibly the date of next required calibration. If this optional field is used, the user is responsible for correctly encoding the date into the appropriate 32-bit integer value. Any modifications of this field (using the Download Internal Coefficients (‘v’) command) will result in the new value automatically being entered to transducer non-volatile memory.

The Date of Factory Calibration field (cc=08) identifies the date of factory calibration for the DH200 transducer (9116). It is stored internally as a 32-bit integer whose value (viewed as a decimal number) is in the format of yymmdd (year, month, day).

A special single Other Coefficients array is selected with array index aa=11 (hex). All the valid coefficient indexes (for this array only) are listed in the following table:

	cc		Other Coefficients Description	Datum
				Type
00		reserved - EU conversion offset term		FLOAT
01			EU Pressure Conversion scaler (default=1.0)	FLOAT
02		Reserved - EU conversion Non-Linearity term		FLOAT
03		Reserved-Reference Voltage value		FLOAT

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