Calibrator
Calibration Verification of the Product
61
12. With all steps in the table populated, evaluate each step for compliance to limits. If Guardbanding is
to be applied, create a table from the example in this manual, where the acceptance limits are
properly modified by your Guardbanding method.
Phase Calibration (5560A and 5550A)
Table 26 lists the required equipment.
The phase function is calibrated for dual output voltage as well as when voltage/current are sourced
out of the Product.
Dual voltage output is straightforward - the Product OUTPUT VZ is connected to the phase meter
REFERENCE INPUT and the product AUX Output is connected to the phase meter SIGNAL INPUT.
Table 25. 10 µV/°C Source Thermocouple Calibration
Step
Product Temperature
Output setting
Product Output
Equivalent
DMM Measurement
on Product
Calculated
Product Output
Error [°C]
Limits
1 0 °C 0 mV ±1.00 µV
2 1000 °C 10 mV ±1.16 µV
3 -1000 °C -10 mV ±1.16 µV
4 5000 °C 50 mV ±1.80 µV
5 -5000 °C -50 mV ±1.80 µV
6 10000 °C 100 mV ±2.60 µV
7 -10000 °C -100 mV ±2.60 µV
Table 26. Required Equipment for Phase Calibration
Equipment Description Manufacture/Model/PN Quantity
Phase meter Clarke-hess 6000A 1
100 mA Fluke A40B-100mA Current Shunt 1
3 A Fluke A40B-5A Current Shunt 1
(10 A, 12 A and 20 A) Fluke A40B-20A Current Shunt 1
Type N (M) to dual banana (M) E-Z-Hook PN 9415 1
Type N (F) to Type N (F) adapter Various 1
N to 4 mm double banana connector A40B-LEAD/4mm 1
DBL BANANA N (M) RG58C/U (≈ 16") (Fluke PN 900394) 5790-8026 1
BNC (M) to Binding Posts Pomona Model 1296 1
Double banana RG58 cable Pomona Model 2BC-24 and 2BC-36 2
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