User Manual

4
Getting Started
6. ClickApply, then OK.
7. Onthenextscreen,selectFile > Properties >
Settings, and click on ASCII Setup.
8. IntheASCIIsetupwindow,clickthecheck
boxes or enter the values as required to
match the screen in Figure 3.
9. Click OK, then OK again to close the FTC
Properties window.
10. HyperTerminal:
Click on the phone icon just below “View”
to connect. If the connection is not
available, repeat the procedure, selecting
adifferentCOMportinstep4.
11. WhenHyperTerminalisconnected,pressthe
reset button of the FTC. The FTC will read as
follows:
FTC Response Explanation
Resetting PWM . . . ok Pulse Width Modulator working
A/D started Analog to Digital converter working
EEPROM parameters recovered Operational parameters loaded
DS24B33present Memory chip recognized
1-wirechecksumok Verify chip is OK
ID=00000142F5DA Chip ID number
Reading embedded parameters … Reading column data
Columnid:12345 Column serial number
Lengthm:10 Column length in meters
Phaseid:VB-1250um Column phase, film thickness (µm) & inside diameter (µm)
Element equation : Column temperature vs. resistance equation
R(T) = 1.31039E1 + 6.44364E-2 * T + 1.74357E – 4 * T^2
M=1.550 Heat capacity of the column
Alpha=2.10000E-2 Time constant in seconds, how fast does the temp. rise
Lambda=1.00000E-4 PWM dampener
Max.temp=340 Column maximum temperature
Calibration data : Column resistance and temperature calibration data
140.0005.600 pair #1 (*C) (ohms)
2183.00010.692 pair #2 (*C) (ohms)
3300.00017.785 pair #3 (*C) (ohms)
OK Data accepted
Weighting vector generated. Algorithm calculation complete
Checking input connections . . . ok If not “ok”, check column connections
0.4.8.095July5201212:30:55,Unit#321 FTC firmware and serial number
DSP Column Control online FTC ready for use
Figure 4: ASCII setup