Introduction and Specifications
Specifications
1
1-9
1-7. Resistance Specifications
Ranges
[1]
Absolute Uncertainty, tcal ± 5 °C
± (% of output + Ω) [2] Resolution
Allowable
Current
90 days 1 year [4]
0 to 10.99 Ω 0.009% 0.008 Ω [3] 0.012% 0.008 Ω [3] 0.001 Ω 1 to 125 mA
11 to 32.999 Ω 0.009 0.015 [3] 0.012 0.015 [3] 0.001 1 to 125 mA
33 to 109.999 Ω 0.007 0.015 [3] 0.009 0.015 [3] 0.001 1 to 70 mA
110 to 329.999 Ω 0.007 0.015 [3] 0.009 0.015 [3] 0.001 1 to 40 mA
330Ω to 1.09999 kΩ 0.007 0.06 0.009 0.06 0.01 250 µA to 18 mA
1.1 to 3.29999 kΩ 0.007 0.06 0.009 0.06 0.01 250 µA to 5 mA
3.3 to 10.9999 kΩ 0.007 0.6 0.009 0.6 0.1 25 µA to 1.8 mA
11 to 32.9999 kΩ 0.007 0.6 0.009 0.6 0.1 25 µA to 0.5 mA
33 to 109.999 kΩ 0.008 6 0.011 6 1 2.5 µA to 0.18 mA
110 to 329.999 kΩ 0.009 6 0.012 6 1 2.5 µA to 0.05 mA
330k to 1.09999 MΩ 0.011 55 0.015 55 10 250 nA to 0.018 mA
1.1 to 3.29999 MΩ 0.011 55 0.015 55 10 250 nA to 5 µA
3.3 to 10.9999 MΩ 0.045 550 0.06 550 100 25 nA to 1.8 µA
11 to 32.9999 MΩ 0.075 550 0.1 550 100 25 nA to 0.5 µA
33 to 109.999 MΩ 0.4 5.5k 0.5 5.5k 1000 2.5 nA to 0.18 µA
110 to 330 MΩ 0.4 16.5k 0.5 16.5k 1000 2.5 nA to 0.06 µA
[1] Continuously variable from 0 to 330 MΩ.
[2] Applies for COMP OFF (to the 5500A Calibrator front panel NORMAL terminals) and 2-wire and
4-wire compensation.
[3] The floor adder is improved to 0.006 Ω (0 to 10.99 Ω range) and 0.010 Ω (11 to 329.999 Ω) if the
5500A Calibrator is zeroed (ohms zero or instrument zero) within 8 hours and temperature is ±1 °C
of zeroing ambient temperature.
[4] Do not exceed the largest current for each range. For currents lower than shown, the floor adder
increases by Floor
(new)
= Floor
(old)
x I
min
/I
actual
. For example, a 100 µA stimulus measuring 100 Ω has a
floor uncertainty of 0.01Ω x 1 mA/100 µA = 0.1Ω.
Ranges Maximum Voltage [1] Maximum Lead Resistance [2]
0 to 10.99 Ω 1.37 V <3.2 Ω
11 to 32.999 Ω 4.12 <3.2
33 to 109.999 Ω 7.7 <3.2
110 to 329.999 Ω 13.2 <3.2
330 Ω to 1.09999 kΩ 19.8 <6
1.1 to 3.29999 kΩ 16.5 <6
3.3 to 10.9999 kΩ 19.8 <6
11 to 32.9999 kΩ 16.5 <6
33 to 109.999 kΩ 19.8 <6
110 to 329.999 kΩ 16.5 (n/a 110 kΩ and above)
330 kΩ to 1.09999 MΩ 19.8 “
1.1 to 3.29999 MΩ 16.5 “
3.3 to 10.9999 MΩ 19.8 “
11 to 32.9999 MΩ 16.5 “
33 to 109.999 MΩ 19.8 “
110 to 330 MΩ 19.8 “
[1] This is for the largest resistance for each range. The maximum voltage for other values is Imax
(highest value of Allowable Current above) multiplied by Rout.
[2] Maximum lead resistance for no additional error in 2-wire COMP.
To Next Page
Loading...
