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Lake Shore Germanium GR-50-AA

Sensor properties Excitation and instrumentation
Temperature Resistance dR/dT Thermal
resistance 		Resistance
range 		Excitation
voltage limit 		Excitation
current 		Power
0.05 K 35 kΩ -3.6 MΩ/K 200 mK/nW 63.2 kΩ 20 µV 0.316 nA 3.5 fW
0.1 K 2 kΩ -72 kΩ/K 20 mK/nW 6.32 kΩ 63 µV 10 nA 232 fW
0.3 K 164 Ω -964Ω/k 4 mK/nW 200 kΩ 63 µV 316 nA 16.4 pW
1 K 34 kΩ -31Ω/k 0.1 mK/nW 63 kΩ 200 µV 1 µA 33.5 pW

Instrument Performance Overall performance
Temperature Measurement
resolution 		Electronic
accuracy 		Calibration
accuracy 		Self-heating
errors 		Interpolation
error 		Overall
accuracy
0.05 K 10 Ω (2.7 µK) ±21 Ω (6 µK) ±4 mK 0.7 µK ±0.2 mK ±4.2 mK
0.1 K 130 mΩ (1.8 µK) ±1.47Ω (21 µK) ±4 mK 5 µK ±0.2 mK ±4.2 mK
0.3 K 2 mΩ (2.1 µK) ±92 mΩ (95 µK) ±4 mK 66 µK ±0.2 mK ±4.4 mK
1 K 200 µΩ (6.4 µK) ±13 mΩ (422 µK) ±4 mK 3 µK ±0.2 mK ±4.6 mK


Lake Shore 1000 Ω Ruthenium Oxide RX-102A

Sensor properties Excitation and instrumentation
Temperature Resistance dR/dT Thermal
resistance 		Resistance
range 		Excitation
voltage limit 		Excitation
current 		Power
0.05 K 70 kΩ -5.0 MΩ/K 700 mK/nW 200 kΩ 63.2 µV 316 pA 7 fW
0.1 K 19.3 kΩ -266 kΩ/K 800 mK/nW 20 kΩ 63.2 µV 3.16 nA 193 fW
0.3 K 5.6 kΩ -16.6 kΩ/k 50 mK/nW 6.32 kΩ 200 µV 31.6 nA 5.6 fW
1 K 2.3 kΩ -1.2 kΩ/k 8 mK/nW 6.32 kΩ 200 µV 31.6 nA 2.3 pW

Instrument performance Overall performance
Temperature Measurement
resolution 		Electronic
accuracy 		Calibration
accuracy 		Self-heating
errors 		Interpolation
error 		Overall
accuracy
0.05 K 40 Ω (8 µK) 35 Ω (7 µK) ±5 mK 49 µK ±0.2 mK ±5.2 mK
0.1 K 1 Ω (3.8 µK) 9.7 Ω (36 µK) ±5 mK 155 µK ±0.2 mK ±5.2 mK
0.3 K 0.1 Ω (6 µK) 2.8 Ω (170 µK) ±5 mK 280 µK ±0.2 mK ±5.4 mK
1 K 0.1 Ω (83 µK) 0.7 Ω (580 µK) ±5 mK 18 µK ±0.2 mK ±5.8 mK
NOTES:
  • Recommended operating range of GA-50-AA is 50 mK to 1 K, but it can be used beyond this range
  • Excitation chosen to minimize sensor self-heating
  • Typical thermal resistance with minimal heat sinking; can be improved with permanent installation
  • Typical sensor characteristics; individual sensors vary in resistance and sensitivity
The Lake Shore
GR-50-AA germanium RTD is the best choice for high accuracy and sensitivity from 0.05 K to 1 K with the Model 370 AC resistance bridge.
Excitation Power = Actual Current2 × Measured Resistance
Resolution (Temperature) = Resolution (Resistance) / dR/dT
Electronic Accuracy (Temperature) = Electronic Accuracy (Resistance) / dR/dT
Self-Heating = Excitation Power × Thermal Resistance

370/3716 Performance Specification Table

±0.03%
±0.05%
±0.1%
±0.3%
±0.5%
±1.0%
Accuracy:
% reading +
0.005% of range
* Range not available
** Range available, not
specified
63.2 kΩ — resistance range
600 mΩ — resolution
3.2 pW — power
Resistance range: Full scale resistance range, nominal 20% over range
Resolution: RMS noise with 18 s filter settling time (approximates 3 s analog time constant)
Power: Excitation power at one-half full scale resistance

Precision: Dominated by measurement temperature coefficient (±0.0015% of reading ±0.0002% of range)/°C

Voltage Range
  632 mV 200 mV 63.2 mV 20 mV 6.32 mV 2.0 mV 632 µV 200 µV 63.2 µV 20 µV 6.32 µV 2.0 µV
31.6 mA 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ 63.2 mΩ 20 mΩ 6.32 mΩ 2.0 mΩ * * *
  20 µΩ 6.0 µΩ 2.0 µΩ 1.3 µΩ 400 nΩ 130 nΩ 100 nΩ 100 nΩ 100 nΩ      
  10 mW 3.2 mW 1.0 mW 320 µW 100 µW 32 µW 10 µW 3.2 µW 1.0 µW      
                         
10 mA 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ 63.2 mΩ 20 mΩ 6.32 mΩ 2.0 mΩ * *
  60 µΩ 20 µΩ 6.0 µΩ 4.0 µΩ 1.3 µΩ 400 nΩ 300 nΩ 300 nΩ 300 nΩ 300 nΩ    
  3.2 mW 1.0 mW 320 µW 100 µW 32 µW 10 µW 3.2 µW 1 µW 320 nW 100 nW    
                         
3.16 mA 200 Ω 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ 63.2 mΩ 20 mΩ 6.32 mΩ 2.0 mΩ *
  200 µΩ 60 µΩ 20 µΩ 13 µΩ 4.0 µΩ 1.3 µΩ 1.0 µΩ 1.0 µΩ 1.0 µΩ 1.0 µΩ 1.0 µΩ  
  1 mW 320 µW 100 µW 32 µW 10 µW 3.2 µW 1.0 µW 320 nW 100 nW 32 nW 10 nW  
                         
1.0 mA 632 Ω 200 Ω 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ 63.2 mΩ 20 mΩ 6.32 mΩ 2.0 mΩ
  600 µΩ 200 µΩ 60 µΩ 40 µΩ 13 µΩ 4.0 µΩ 3.0 µΩ 3.0 µΩ 3.0 µΩ 3.0 µΩ 3.0 µΩ 3.0 µΩ
  320 µW 100 µW 32 µW 10 µW 3.2 µW 1.0 µW 320 nW 100 nW 32 nW 10 nW 3.2 nW 1.0 nW
                         
316 µA 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ 63.2 mΩ 20 mΩ 6.32 mΩ
  2.0 mΩ 600 µΩ 200 µΩ 130 µΩ 40 µΩ 13 µΩ 10 µΩ 10 µΩ 10 µΩ 10 µΩ 10 µΩ 10 µΩ
  100 µW 32 µW 10 µW 3.2 µW 1.0 µW 320 nW 100 nW 32 nW 10 nW 3.2 nW 1.0 nW 320 pW
100 µA 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ 63.2 mΩ 20 mΩ
  6.0 mΩ 2.0 mΩ 600 µΩ 400 µΩ 130 µΩ 40 µΩ 30 µΩ 30 µΩ 30 µΩ 30 µΩ 30 µΩ 30 µΩ
  32 µW 10 µW 3.2 µW 1.0 µW 320 nW 100 nW 32 nW 10 nW 3.2 nW 1.0 nW 320 pW 100 pW
                         
31.6 µA 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ 63.2 mΩ
  20 mΩ 6.0 mΩ 2.0 mΩ 1.3 mΩ 400 µΩ 130 µΩ 100 µΩ 100 µΩ 100 µΩ 100 µΩ 100 µΩ 100 µΩ
  10 µW 3.2 µW 1.0 µW 320 nW 100 nW 32 nW 10 nW 3.2 nW 1.0 nW 320 pW 100 pW 32 pW
                         
10 µA 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ
  60 mΩ 20 mΩ 6.0 mΩ 4.0 mΩ 1.3 mΩ 400 µΩ 300 µΩ 300 µΩ 300 µΩ 300 µΩ 300 µΩ 300 µΩ
  3.2 µW 1.0 µW 320 nW 100 nW 32 nW 10 nW 3.2 nW 1.0 nW 320 pW 100 pW 32 pW 10 pW
                         
3.16 µA 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 WO 6.32 Ω 2.0 Ω 632 mΩ
  200 mΩ 60 mΩ 20 mΩ 13 mΩ 4.0 mΩ 1.3 mΩ 1.0 mΩ 1.0 mΩ? 1.0 mΩ 1.0 mΩ 1.0 mΩ 1.0 mΩ
  1.0 µW 320 nW 100 nW 32 nW 10 nW 3.2 nW 1.0 nW 320 pW 100 pW 32 pW 10 pW 3.2 pW
                         
1.0 µA 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω
    600 mΩ 200 mΩ 60 mΩ 40 mΩ 13 mΩ 4.0 mΩ 3.0 mΩ 3.0 mΩ 3.0 mΩ 3.0 mΩ 3.0 mΩ 3.0 mΩ
    320 nW 100 nW 32 nW 10 nW 3.2 nW 1.0 nW 320 pW 100 pW 32 pW 10 pW 3.2 pW 1.0 pW
                                                   
316 nA 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 Ω 6.32 Ω
    2.0 Ω 600 mΩ 200 mΩ 130 mΩ 40 mΩ 13 mΩ 10 mΩ 10 mΩ 10 mΩ 10 mΩ 10 mΩ 10 mΩ
    100 nW 32 nW 10 nW 3.2 nW 1.0 nW 320 pW 100 pW 32 pW 10 pW 3.2 pW 1.0 pW 320 fW
                                                   
100 nA 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 Ω
    ** 2.0 Ω 600 mΩ 400 mΩ 130 mΩ 40 mΩ 30 mΩ 30 mΩ 30 mΩ 30 mΩ 30 mΩ 30 mΩ
    32 nW 10 nW 3.2 nW 1.0 nW 320 pW 100 pW 32 pW 10 pW 3.2 pW 1.0 pW 320 fW 100 fW
                                                   
31. 6 nA 20 MΩ 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω
    ** ** 2.0 Ω 1.3 Ω 400 mΩ 130 mΩ 100 mΩ 100 mΩ 100 mΩ 100 mΩ 100 mΩ 100 mΩ
    10 nW 3.2 nW 1.0 nW 320 pW 100 pW 32 pW 10 pW 3.2 pW 1.0 pW 320 fW 100 fW 32 fW
                                                   
10 nA 63.2 MΩ 20 MΩ 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω
    ** ** ** 6.0 Ω 2.0 Ω 1.0 Ω 600 mΩ 400 mΩ 300 mΩ 300 mΩ 300 mΩ 300 mΩ
  3.2 nW 1 nW 320 pW 100 pW 32 pW 10 pW 3.2 pW 1.0 pW 320 fW 100 fW 32 fW 10 fW
                         
3.16 nA * 63.2 MΩ 20 MΩ 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω
    * ** ** ** 10 Ω 6.0 Ω 4.0 Ω 2.0 Ω 1.0 Ω 1.0 Ω 1.0 Ω 1.0 Ω
  * 320 pW 100 pW 32 pW 10 pW 3.2 pW 1.0 pW 320 fW 100 fW 32 fW 10 fW 3.2 fW
                         
1.0 nA * * 63.2 MΩ 20 MΩ 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ
    * * ** ** ** 40 Ω 20 Ω 10 Ω 6.0 Ω 4.0 Ω 3.0 Ω 3.0 Ω
  * * 32 pW 10 pW 3.2 pW 1.0 pW 320 fW 100 fW 32 fW 10 fW 3.2 fW 1.0 fW
                         
316 pA * * * 63.2 MΩ 20 MΩ 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ
    * * * ** ** ** 100 Ω 60 Ω 40 Ω 25 Ω 16 Ω 10 Ω
  * * * 3.2 pW 1.0 pW 320 fW 100 fW 32 fW 10 fW 3.2 fW 1.0 fW 320 aW
                         
100 pA * * * * 63.2 MΩ 20 MΩ 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ
    * * * * ** ** ** 400 Ω 200 Ω 100 Ω 60 Ω 60 Ω
  * * * * 320 fW 100 fW 32 fW 10 fW 3.2 fW 1.0 fW 320 aW 100 aW
                                               
31.6 pA * * * * * 63.2 MΩ 20 MΩ 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ
    * * * * * ** ** ** 1.0 kW 600 Ω 300 Ω 200 Ω
  * * * * * 32 fW 10 fW 3.2 fW 1.0 fW 320 aW 100 aW 32 aW
                     
10 pA * * * * * * 63.2 MΩ 20 MΩ 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ
    * * * * * * ** ** ** 3.0 kΩ 2.0 kΩ 1.0 kΩ
  * * * * * * 3.2 fW 1.0 fW 320 aW 100 aW 32 aW 10 aW
                                               
3.16 pA * * * * * * * 63.2 MΩ 20 MΩ 6.32 MΩ 2.0 MΩ 632 kΩ
  * * * * * * * ** ** ** 10 kΩ 6.0 kΩ
  * * * * * * * 320 aW 100 aW 32 aW 10 aW 3.2 aW
                       
1.0 pA * * * * * * * * 63.2 MΩ 20 MΩ 6.32 MΩ 2.0 MΩ
  * * * * * * * * ** ** ** **
  * * * * * * * * 32 aW 10 aW 3.2 aW 1.0 aW

3716L Performance Specification Table

±0.03%
±0.05%
±0.1%
±0.3%
±0.5%
Accuracy:
% reading +
0.005% of range
  * Range not available
** Range available, not
specified
63.2 k Ω — resistance range
600 mΩ — resolution
3.2 pW — power
Resistance range: Full scale resistance range, nominal 20% over range
Resolution: RMS noise with 18 s filter settling time (approximates 3 s analog time constant)
Power: Excitation power at one-half full scale resistance

 Precision: Dominated by measurement temperature coefficient (±0.0015% of reading ±0.0002% of range)/°C

Voltage Range
  632 mV 200 mV 63.2 mV 20 mV 6.32 mV 2.0 mV 632 µV 200 µV 63.2 µV 20 µV 6.32 µV 2.0 µV
31.6 mA 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ 63.2 mΩ 20 mΩ 6.32 mΩ 2.0 mΩ 632 µΩ 200 µΩ 63.2 µΩ
  20 µΩ 6.0 µΩ 2.0 µΩ 1.3 µΩ 400 nΩ 130 nΩ 40 nΩ 20 nΩ 20 nΩ 20 nΩ 20 nΩ 20 nΩ
  10 mW 3.2 mW 1.0 mW 320 µW 100 µW 32 µW 10 µW 3.2 µW 1.0 µW 320 nW 100 nW 32 nW
                         
10 mA 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ 63.2 mΩ 20 mΩ 6.32 mΩ 2.0 mΩ 632 µΩ 200 mΩ
  60 µΩ 20 µΩ 6.0 µΩ 4.0 µΩ 1.3 µΩ 400 nΩ 130 nΩ 60 nΩ 60 nΩ 60 nΩ 60 nΩ 60 nΩ
  3.2 mW 1.0 mW 320 µW 100 µW 32 µW 10 µW 3.2 µW 1.0 µW 320 nW 100 nW 32 nW 10 nW
                         
3.16 mA 200 Ω 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ 63.2 mΩ 20 mΩ 6.32 mΩ 2.0 mΩ 632 µΩ
  200 µΩ 60 µΩ 20 µΩ 13 µΩ 4.0 µΩ 1.3 µΩ 400 nΩ 200 nΩ 200 nΩ 200 nΩ 200 nΩ 200 nΩ
  1.0 mW 320 µW 100 µW 32 µW 10 µW 3.2 µW 1.0 µW 320 nW 100 nW 32 nW 10 nW 3.2 nW
                         
1.0 mA 632 Ω 200 Ω 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ 63.2 mΩ 20 mΩ 6.32 mΩ 2.0 mΩ
  600 µΩ 200 µΩ 60 µΩ 40 µΩ 13 µΩ 4.0 µΩ 1.3 µΩ 600 nΩ 600 nΩ 600 nΩ 600 nΩ 600 nΩ
  320 µW 100 µW 32 µW 10 µW 3.2 µW 1.0 µW 320 nW 100 nW 32 nW 10 nW 3.2 nW 1.0 nW
                         
316 µA 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ 63.2 mΩ 20 mΩ 6.32 mΩ
  2.0 mΩ 600 µΩ 200 µΩ 130 µΩ 40 µΩ 13 µΩ 4.0 µΩ 2.0 µΩ 2.0 µΩ 2.0 µΩ 2.0 µΩ 2.0 µΩ
  100 µW 32 µW 10 µW 3.2 µW 1.0 µW 320 nW 100 nW 32 nW 10 nW 3.2 nW 1.0 nW 320 pW
100 µA 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ 63.2 mΩ 20 mΩ
  6.0 mΩ 2.0 mΩ 600 µΩ 400 µΩ 130 µΩ 40 µΩ 13 µΩ 6.0 µΩ 6.0 µΩ 6.0 µΩ 6.0 µΩ 6.0 µΩ
  32 µW 10 µW 3.2 µW 1.0 µW 320 nW 100 nW 32 nW 10 nW 3.2 nW 1.0 nW 320 pW 100 pW
                         
31.6 µA 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ 63.2 mΩ
  20 mΩ 6.0 mΩ 2.0 mΩ 1.3 mΩ 400 µΩ 130 µΩ 40 µΩ 20 µΩ 20 µΩ 20 µΩ 20 µΩ 20 µΩ
  10 µW 3.2 µW 1.0 µW 320 nW 100 nW 32 nW 10 nW 3.2 nW 1.0 nW 320 pW 100 pW 32 pW
                         
10 µA 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ
  60 mΩ 20 mΩ 6.0 mΩ 4.0 mΩ 1.3 mΩ 400 µΩ 130 µΩ 60 µΩ 60 µΩ 60 µΩ 60 µΩ 60 µΩ
  3.2 µW 1.0 µW 320 nW 100 nW 32 nW 10 nW 3.2 nW 1 nW 320 pW 100 pW 32 pW 10 pW
                         
3.16 µA 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω 632 mΩ
  200 mΩ 60 mΩ 20 mΩ 13 mΩ 4.0 mΩ 1.3 mΩ 400 µΩ 200 µΩ 200 µΩ 200 µΩ 200 µΩ 200 µΩ
  1.0 µW 320 nW 100 nW 32 nW 10 nW 3.2 nW 1.0 nW 320 pW 100 pW 32 pW 10 pW 3.2 pW
                         
1.0 µA 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω
    600 mΩ 200 mΩ 60 mΩ 40 mΩ 13 mΩ 4.0 mΩ 1.3 mΩ 600 µΩ 600 µΩ 600 µΩ 600 µΩ 600 µΩ
    320 nW 100 nW 32 nW 10 nW 3.2 nW 1.0 nW 320 pW 100 pW 32 pW 10 pW 3.2 pW 1.0 pW
                                                   
316 nA 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 Ω 6.32 Ω
    ** 600 mΩ 200 mΩ 130 mΩ 40 mΩ 13 mΩ 4.0 mΩ 2.0 mΩ 2.0 mΩ 2.0 mΩ 2.0 mΩ 2.0 mΩ
    100 nW 32 nW 10 nW 3.2 nW 1.0 nW 320 pW 100 pW 32 pW 10 pW 3.2 pW 1.0 pW 320 fW
                                                   
100 nA 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 Ω
    ** ** 600 mΩ 400 mΩ 130 mΩ 40 mΩ 13 mΩ 10 mΩ 6.0 mΩ 6.0 mΩ 6.0 mΩ 6.0 mΩ
    32 nW 10 nW 3.2 nW 1.0 nW 320 pW 100 pW 32 pW 10 pW 3.2 pW 1.0 pW 320 fW 100 fW
                                                   
31. 6nA * 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω
    * ** ** 1.3 Ω 400 mΩ 130 mΩ 60 mΩ 30 mΩ 30 mΩ 20 mΩ 20 mΩ 20 mΩ
    * 3.2 nW 1.0 nW 320 pW 100 pW 32 pW 10 pW 3.2 pW 1.0 pW 320 fW 100 fW 32 fW
                                                   
10 nA * * 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω
    * * ** ** 2.0 Ω 600 mΩ 200 mΩ 200 mΩ 130 mΩ 100 mΩ 60 mΩ 60 mΩ
  * * 320 pW 100 pW 32 pW 10 pW 3.2 pW 1.0 pW 320 fW 100 fW 32 fW 10 fW
                         
3.16 nA * * * 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω
    * * * ** ** 2.0 Ω 2.0 Ω 630 mΩ 600 mΩ 320 mΩ 400 mΩ 200 mΩ
  * * * 32 pW 10 pW 3.2 pW 1.0 pW 320 fW 100 fW 32 fW 10 fW 3.2 fW
                         
1.0 nA * * * * 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ
    * * * * ** ** 6.0 Ω 6.0 Ω 3.2 Ω 2.0 Ω 1.3 Ω 1.0 Ω
  * * * * 3.2 pW 1.0 pW 320 fW 100 fW 32 fW 10 fW 3.2 fW 1.0 fW
                         
316 pA * * * * * 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ
    * * * * * ** ** 20 Ω 20 Ω 10 Ω 6.0 Ω 3.2 Ω
  * * * * * 320 fW 100 fW 32 fW 10 fW 3.2 fW 1.0 fW 320 aW
                         
100 pA * * * * * * 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ
    * * * * * * ** ** 60 W 60 Ω 30 Ω 20 Ω
  * * * * * * 32 fW 10 fW 3.2 fW 1.0 fW 320 aW 100 aW
                                                   
31.6 pA * * * * * * * 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ
    * * * * * * * ** ** 200 Ω 200 Ω 60 Ω
  * * * * * * * 3.2 fW 1.0 fW 320 aW 100 aW 32 aW
                         
10 pA * * * * * * * * 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ
    * * * * * * * * ** ** 600 Ω 600 Ω
  * * * * * * * * 320 aW 100 aW 32 aW 10 aW
                                               
3.16 pA * * * * * * * * * 6.32 MΩ 2.0 MΩ 632 kΩ
  * * * * * * * * * ** ** **
  * * * * * * * * * 32 aW 10 aW 3.2 aW

3708 Performance Specification Table

±0.03%
±0.05%
±0.1%
±0.3%
±0.5%
±1.0%
Accuracy:
% reading
+0.005% of range
  * Range not available
** Range available,
not specified

 
200 k Ω — resistance range
100 mΩ — resolution
1.0 pW — power
Resistance range: Full scale resistance range, nominal 20% over range
Resolution: RMS noise with 18 s filter settling time (approximates 3 s analog time constant)
Power: Excitation power at one-half full scale resistance

Precision: Dominated by measurement temperature coefficient (±0.0015% of reading ±0.0002% of range)/°C

Voltage Range
Current Excit
  6.32 mV 2.0 mV 632 µV 200 µV 63.2 µV 20 µV 6.32 µV 2.0 µV
31.6 mA 200 mΩ 63.2 mΩ 20 mΩ 6.32 mΩ 2.0 mΩ 632 µΩ 200 µΩ 63.2 µΩ
  200 nΩ 63 nΩ 40 nΩ 13 nΩ 10 nΩ 10 nΩ 10 nΩ 10 nΩ
  100 µW 32 µW 10 µW 3.2 µW 1.0 µW 320 nW 100 nW 32 nW
                 
10 mA 632 mΩ 200 mΩ 63.2 mΩ 20 mΩ 6.32 mΩ 2.0 mΩ 632 µΩ 200 µΩ
  630 nΩ 200 nΩ 130 nΩ 40 nΩ 32 nΩ 32 nΩ 32 nΩ 32 nΩ
  32 µW 10 µW 3.2 µW 1.0 µW 320 nW 100 nW 32 nW 10 nW
                 
3.16 mA 2.0 Ω 632 mΩ 200 mΩ 63.2 mΩ 20 mΩ 6.32 mΩ 2.0 mΩ 632 µΩ
  2.0 µΩ 630 nΩ 400 nΩ 130 nΩ 100 nΩ 100 nΩ 100 nΩ 100 nΩ
  10 µW 3.2 µW 1.0 µW 320 nW 100 nW 32 nW 10 nW 3.2 nW
                 
1.0 mA 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ 63.2 mΩ 20 mΩ 6.32 mΩ 2.0 mΩ
  6.3 µΩ 2.0 µΩ 1.3 µΩ 400 nΩ 320 nΩ 320 nΩ 320 nΩ 320 nΩ
  3.2 µW 1.0 µW 320 nW 100 nW 32 nW 10 nW 3.2 nW 1.0 nW
                 
316 µA 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ 63.2 mΩ 20 mΩ 6.32 mΩ
  20 µΩ 6.3 µΩ 4.0 µΩ 1.3 µΩ 1.0 µΩ 1.0 µΩ 1.0 µΩ 1.0 µΩ
  1.0 µW 320 nW 100 nW 32 nW 10 nW 3.2 nW 1.0 nW 320 pW
100 µA 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ 63.2 mΩ 20 mΩ
  63 µΩ 20 µΩ 13 µΩ 4.0 µΩ 3.2 µΩ 3.2 µΩ 3.2 µΩ 3.2 µΩ
  320 nW 100 nW 32 nW 10 nW 3.2 nW 1.0 nW 320 pW 100 pW
                 
31.6 µA 200 Ω 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ 63.2 mΩ
  200 µΩ 63 µΩ 40 µΩ 13 µΩ 10 µΩ 10 µΩ 10 µΩ 10 µΩ
  100 nW 32 nW 10 nW 3.2 nW 1.0 nW 320 pW 100 pW 32 pW
                 
10 µA 632 Ω 200 Ω 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω 632 mΩ 200 mΩ
  630 µΩ 200 µΩ 130 µΩ 40 µΩ 32 µΩ 32 µΩ 32 µΩ 32 µΩ
  32 nW 10 nW 3.2 nW 1.0 nW 320 pW 100 pW 32 pW 10 pW
                 
3.16 µA 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω 632 mΩ
  2.0 mΩ 630 µΩ 400 µΩ 130 µΩ 100 µΩ 100 µΩ 100 µΩ 100 µΩ
  10 nW 3.2 nW 1.0 nW 320 pW 100 pW 32 pW 10 pW 3.2 pW
                 
1.0 µA 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 Ω 6.32 Ω 2.0 Ω
    6.3 mΩ 2.0 mΩ 1.3 mΩ 400 µΩ 320 µΩ 320 µΩ 320 µΩ 320 µΩ
    3.2 nW 1.0 nW 320 pW 100 pW 32 pW 10 pW 3.2 pW 1.0 pW
                                   
316 nA 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 Ω 6.32 Ω
    20 mΩ 6.3 mΩ 4.0 mΩ 1.3 mΩ 1.0 mΩ 1.0 mΩ 1.0 mΩ 1.0 mΩ
    1.0 nW 320 pW 100 pW 32 pW 10 pW 3.2 pW 1.0 pW 320 fW
                                   
100 nA 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω 20 Ω
    63 mΩ 40 mΩ 13 mΩ 6.0 mΩ 3.2 mΩ 3.2 mΩ 3.2 mΩ 3.2 mΩ
    320 pW 100 pW 32 pW 10 pW 3.2 pW 1.0 pW 320 fW 100 fW
                                   
31. 6 nA 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω 63.2 Ω
    400 mΩ 130 mΩ 60 mΩ 20 mΩ 20 mΩ 10 mΩ 10 mΩ 10 mΩ
    100 pW 32 pW 10 pW 3.2 pW 1.0 pW 320 fW 100 fW 32 fW
                                   
10 nA 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω 200 Ω
    1.9 Ω 600 mΩ 200 mΩ 200 mΩ 63 mΩ 63 mΩ 32 mΩ 32 mΩ
  32 pW 10 pW 3.2 pW 1.0 pW 320 fW 100 fW 32 fW 10 fW
                 
3.16 nA 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ 632 Ω
    6.0 Ω 2.0 Ω 2.0 Ω 630 mΩ 600 mΩ 200 mΩ 200 mΩ 100 mΩ
  10 pW 3.2 pW 1.0 pW 320 fW 100 fW 32 fW 10 fW 3.2 fW
                 
1.0 nA 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ 2.0 kΩ
    ** 20 Ω 6.3 Ω 6.0 Ω 3.2 Ω 2.0 Ω 630 mΩ 1.0 Ω
  3.2 pW 1.0 pW 320 fW 100 fW 32 fW 10 fW 3.2 fW 1.0 fW
                 
316 pA * 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ 6.32 kΩ
    * ** 60 Ω 19 Ω 20 Ω 6.3 Ω 3.0 Ω 3.2 Ω
  * 320 fW 100 fW 32 fW 10 fW 3.2 fW 1.0 fW 320 aW
                 
100 pA * * 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ 20 kΩ
    * * ** 200 Ω 63 Ω 60 Ω 32 Ω 20 Ω
  * * 32 fW 10 fW 3.2 fW 1.0 fW 320 aW 100 aW
                                   
31.6 pA * * * 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ 63.2 kΩ
    * * * ** 600 Ω 190 Ω 200 Ω 63 Ω
  * * * 3.2 fW 1.0 fW 320 aW 100 aW 32 aW
                 
10 pA * * * * 6.32 MΩ 2.0 MΩ 632 kΩ 200 kΩ
    * * * * ** 2.0 kΩ 630 Ω 600 Ω
  * * * * 320 aW 100 aW 32 aW 10 aW
                                   
3.16 pA * * * * * 6.32 MΩ 2.0 MΩ 632 kΩ
  * * * * * ** 6.0 kΩ 1.9 kΩ
  * * * * * 32 aW 10 aW 3.2 aW