Fluke 9118A User Manual page 78

9118A
Users Manual
21. Do steps 10 through 13 again to make sure axial
uniformity is equal to or less than the specification.
The difference between the maximum and minimum
values in the difference row of Table 9 must be
between ±0.5 °C.
22. Calculate a curve value for the 0, 30 and -30 positions
of TC2 with:
(Gradient - Gradient
(0)
Curve =
23. Calculate the ZONE value with:
ZONE = ZONE
n(new)
Table 12 shows the value for B at each temperature
setpoint.
Table 12. Zone Correction Values
Setpoint
300
700
1000
1200
24. Put the ZONE value into the Product through the
n(new)
front panel or RS-232 port. Table 13 a list of
temperature setpoints and the RS-232 command and
front-panel name for the ZONE parameters.
68
) + (Gradient – Gradient
(+30) (0) (-30)
2
+ B x (Curve)
n(old)
B Value
1.5
2.4
3.3
4.2
Setpoint
(°C)
300 SOUR:SENS:CAL:ZONE1
700 SOUR:SENS:CAL:ZONE2
1000 SOUR:SENS:CAL:ZONE3
)
1200 SOUR:SENS:CAL:ZONE4
25. Let the Product soak for 60 minutes after you put in
the ZONE value.
26. Do steps 10 through 14 again to make sure axial
uniformity is equal to or less than the specification. If
the Product does not satisfy the specification, do steps
15 through 25 again with the new axial uniformity
values.
Table 13. ZONE Parameter
Parameter
RS-232 Command Front Panel
ZONE (300)
ZONE (700)
ZONE (1000)
ZONE (1200)