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Section 2

 

 

TM9340-G-00 
15 August, 2019 

2-5 

Accuracy

 

 Accuracy is based on the most significant dial (MSD) that is used for the resistance 

output.  The accuracy of the MSD dial used for the resistance output determines the accuracy of 
all the dial settings for the resistance output desired.  Accuracy for  
1 M

 and below is based on subtraction of Zero Resistance (nulling out all dial zero resistances 

and lead resistance). 
 

 

MSD

 

(M

OST 

S

IGNIFICANT 

D

IAL

)

 

U

SED

 

Accuracy 

10 m to 1M  10M & 100M 

1G 

10G 

100G 

1T 

0.01% + 2 

m

 

0.1% 

1% 

2% 

5% 

6% 

Examples  show  a  9346  Series  models  dials  set  to  various  outputs  to  show 
accuracy calculations. 

Example 1

 

 A 9346/10k Decade Standard is set to 

7

.96912 k

Ω.  

The most significant dial would 

be 1k.  Since the 1k Dial (set to 7 Position) is most significant dial used, the accuracy would be 
0.01% + 2 

mΩ for all the 9340 Dial Settings

 for the entire resistance output. 

Example  2

 

  A  9346/100M  Decade  Standard  is  set  to 

2

3.1573  M

Ω.   

The  most  significant  dial 

would be the 10 M

 Dial.  For this output, this dial would be set to the 2 Position with remaining 

dials set to values as shown.  Since the 10 

M dial is the most significant dial used, the accuracy 

would be 0.1% for all the 9340 Dial Settings for the entire resistance output. 

Example 3

 

 A 9346/1T Decade Standard is set to 

100

.59

 

GΩ

.  Since the 1 T

 Dial was not used 

this resistance requires only the 100 G

 dials and below.  The 100 G

 is the most significant dial 

used so the accuracy would be 5% for all the 9340 Dial Settings for the entire resistance output.  If 
the 1 T

 Dial were used as the most significant dial, the accuracy would change to 6% for the 

output needed. 

 
 

 

Содержание 9340 Series

Страница 1: ...prietary to Guildline Instruments Limited They are to be used only as a guide to the operation and maintenance of the equipment with which this manual was issued and may not be duplicated or transmitt...

Страница 2: ...NAL DESCRIPTION 1 1 1 2 FEATURES 1 2 1 3 GENERAL THEORY 1 2 2 SPECIFICATIONS 2 1 3 RECEIPT AND INSPECTION 3 1 3 1 GENERAL 3 1 3 2 PACKAGING 3 1 4 OPERATION AND MAINTENANCE 4 1 4 1 OPERATION 4 1 4 2 MA...

Страница 3: ...TM9340 G 00 15 August 2019 ii TABLE OF FIGURES FIGURE 1 1 9340 SERIES OF RESISTANCE DECADE BOXES 1 1 FIGURE 1 2 DECADE BOX SCHEMATIC DIAGRAM 1 2...

Страница 4: ...TM9340 G 00 15 August 2019 iii LIST OF TABLES TABLE 2 1 MODEL SELECTION TABLE 2 2 TABLE 2 2 MODEL SPECIFICATIONS 2 4 TABLE 5 1 GENERAL ASSEMBLY PARTS LISTS 5 1...

Страница 5: ...niques established at Guildline in the construction and stabilizing of resistors and low uncertainty switching techniques used in many of our instruments The Model 9340 Series is available in decade r...

Страница 6: ...resistors switched in a series circuit Figure 1 1 illustrates schematically the circuit of the Model 9347 The Models 9343 9344 9345 9346 and 9347 are identical except for the number of decades The val...

Страница 7: ...0 001 ohm per decade after settling Breakdown Voltage 1500 Volts to case Dimensions 9343 11 8cm X 23 3cm X 10 3cm high 9344 11 8cm X 29 0cm X 10 3cm high 9345 11 8cm X 34 7cm X 10 3cm high 9346 11 8cm...

Страница 8: ...343 10G 3 10M 11 10 G 9344 100G 4 10M 111 1 G 9343 100G 3 100M 111 0 G 9344 1T 4 100M 1 111 T 9343 1T 3 1G 1 110T 9344 10T 4 1G 11 11 T 9343 10T 3 10G 11 10 T Model Number of Decades Minimum Step s Ma...

Страница 9: ...nimum Step s Maximum Value s 9347 100k 7 0 01 111 111 1 k 9347 1M 7 0 1 1 111 111 M 9347 10M 7 1 11 111 11 M 9347 100M 7 10 111 111 1 M 9347 1G 7 100 1 111 111 G 9347 10G 7 1k 11 111 11 G 9347 100G 7...

Страница 10: ...0 2 0 5 7 0 07 0 1 1 50 5 0 2 0 5 2 0 2 1 10 20 5 0 2 0 5 0 7 0 7 10 100 10 5 0 2 0 5 0 2 2 100 1 k 10 5 0 2 0 5 0 07 7 1 k 10 k 10 5 0 2 0 5 0 02 20 10 k 100 k 10 5 0 2 0 5 0 007 70 100 k 1 M 10 5 0...

Страница 11: ...ince the 1k Dial set to 7 Position is most significant dial used the accuracy would be 0 01 2 m for all the 9340 Dial Settings for the entire resistance output Example 2 A 9346 100M Decade Standard is...

Страница 12: ...mechanical damage when received Nevertheless you should perform an inspection for physical damage ensure all items on the packing list are present and test the instrument electrically as soon as poss...

Страница 13: ...al Multimeter with a minimum accuracy specification of better than 20 ppm over the range of 1 to 10 M A suitably accurate Teraohometer is required for models with resistance ranges above 1 G 4 3 REPAI...

Страница 14: ...11 02 PL 9343 1T 18680 12 02 PL 9344 10T 18697 12 02 PL 9343 10T 18680 13 02 PL 9345 1k 18630 01 02 PL 9346 10k 18660 01 02 PL 9345 10k 18630 02 02 PL 9346 100k 18660 02 02 PL 9345 100k 18630 03 02 P...

Страница 15: ...75 03 02 PL 10 Decade 18675 04 02 PL 100 Decade 18675 05 02 PL 1k Decade 18675 06 02 PL 10 k Decade 18675 07 02 PL 100 k Decade 18675 08 02 PL 1 M Decade 18675 09 02 PL 10 M Decade 18675 10 02 PL 100...

Страница 16: ...NGS Decade Box Drawing 9343 Decade Box General Assembly 18680 01 02 9344 Decade Box General Assembly 18697 01 02 9345 Decade Box General Assembly 18630 01 02 9346 Decade Box General Assembly 18660 01...

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