28022 Parallax Inc, 28022 Datasheet - Page 6

• Manufacturer Part Number: 28022
• Description: KIT DS2760 THERMOCOUPLE
• Manufacturer: Parallax Inc

Specifications of 28022

• Lead Free Status: Contains lead
• Accessory Type: Thermocouple Kit
• For Use With/related Products: BASIC Stamp® Modules
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

' -----[ Subroutines ]-----------------------------------------------------
' Reads device input voltage (Vin pin)
' -- mV in millivolts (max reading is 4.75 volts)
Read_Vin:
' Reads current register to get TC voltage
' -- each raw bit = 15.625 uV
' -- tCuV in microvolts
Read_TC_Volts:
6
LOOP
END
OWOUT OW, %0001, [SkipNet, RdReg, $0C]
OWIN
IF (vIn.BIT15) THEN
ELSE
ENDIF
RETURN
OWOUT OW, %0001, [SkipNet, RdReg, $0E]
OWIN
ELSE
ENDIF
LOOKUP type, [1023, 1023, 400], tblHi
GOSUB TC_Lookup
tempF = tempC * 9 / 5 + 32
IF (error = 0) THEN
ELSE
ENDIF
PAUSE 1000
vIn = 0
vIn = vIn >> 5 */ $4E1
' TC above cold junction
cjComp = cjComp + tCuV
DEBUG CRSRXY, 0, 7,
DEBUG CRSRXY, 0, 8,
DEBUG CRSRXY, 0, 7,
DEBUG CRSRXY, 0, 8,
OW, %0010, [vIn.BYTE1, vIn.BYTE0]
OW, %0010, [tCuV.BYTE1, tCuV.BYTE0]
"Temp °C..... ", SDEC tempC, CLREOL
"Temp °F..... ", SDEC tempF, CLREOL
"Temp °C..... Out of Range", CLREOL
"Temp °F..... Out of Range", CLREOL
Parallax, Inc. • DS2760 Thermocouple Kit (#28022) • 01/2004
' set high end of search
' reverse lookup of table
' x 1.8 + 32
' check sign
' disallow negative
' x 4.88 millivolts
' read current register