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Operator MANUAL
FOR
MODEL 9340
PRECISION DECADE RESISTANCE STANDARDS
NOTICE
The contents and information contained in this manual are proprietary 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 transmitted by any means, either in whole or in part, without the
written permission of Guildline Instruments Limited.
OM9340-G1-00
20 December, 2024
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Summary of Contents for Guildline 9340
- Page 1 PRECISION DECADE RESISTANCE STANDARDS NOTICE The contents and information contained in this manual are proprietary 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 transmitted by any means, either in whole or in part, without the written permission of Guildline Instruments Limited.
- Page 3 TABLE OF CONTENTS INTRODUCTION ....................1-1 1.1. FUNCTIONAL DESCRIPTION......................1-1 1.2. FEATURES ............................1-2 1.3. GENERAL THEORY ........................... 1-2 SPECIFICATIONS ....................2-1 RECEIPT AND INSPECTION ................3-1 3.1. GENERAL ............................. 3-1 3.2. PACKAGING ............................3-1 OPERATION AND MAINTENANCE ..............4-1 4.1.
- Page 4 OM9340-G1-00 20 December, 2024...
- Page 5 TABLE OF FIGURES FIGURE 1-1: 9340 SERIES OF RESISTANCE DECADE STANDARDS ............1-1 FIGURE 1-2: DECADE STANDARD SCHEMATIC DIAGRAM ..............1-2 OM9340-G1-00 20 December, 2024...
- Page 6 OM9340-G1-00 20 December, 2024...
- Page 7 LIST OF TABLES TABLE 2-1: MODEL SELECTION TABLE ......................2-2 TABLE 2-2: MODEL SPECIFICATIONS ......................2-4 OM9340-G1-00 20 December, 2024...
- Page 8 OM9340-G1-00 20 December, 2024...
- Page 9 1.1. FUNCTIONAL DESCRIPTION The Model 9340 is a Family of Precision Decade Resistance Standards. It combines techniques 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 models with 3 to 7 decades, and in ohmic values from 0.01 Ω...
- Page 10 1.3. GENERAL THEORY The 9340 series of decade standards consist of 3, 4, 5, 6 or 7 decades of 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.
- Page 11 Section 2 SPECIFICATIONS Number of Decades Available: 3, 4, 5, 6 & 7 Zero Resistance (Typical): 0.0030 ± 0.001 ohm per dial, 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 X 40.5cm X 10.3cm high 9347 11.8cm X 46.1cm X 10.3cm high...
- Page 12 Section 2 Table 2-1: Model Selection Table Model # of Minimum Maximum Model # of Minimum Maximum Number Decades Step (Ω’s) Value (Ω’s) Number Decades Step (Ω’s) Value (Ω’s) 9343/10 0.01 11.10 9344/100 0.01 111.1 9343/100 111.0 9344/1k 1.111 k 9343/1k 1.110 k 9344/10k...
- Page 13 Section 2 Model # of Minimum Maximum Number Decades Step (Ω’s) Value (Ω’s) 9347/100k 0.01 111.111 1 k 9347/1M 1.111 111 M 9347/10M 11.111 11 M 9347/100M 111.111 1 M 9347/1G 1.111 111 G 9347/10G 11.111 11 G 9347/100G 111.111 1 G 9347/1T 100k 1.111 111 T...
- Page 14 Section 2 Table 2-2: Model Specifications Coefficients Maximum Limits Maximum Dial Output Stability Temperature Power Power Amperes Volts (x10 Setting) (Most Significant Dial) (ohms) (± µΩ/Ω /yr) (±µΩ/Ω /C) (±µΩ/Ω /mW) (W/step) (Adc/step) (volts/step) 0.01 0.1 Ω 0.07 1 Ω 10 Ω...
- Page 15 100 GΩ dials and below. The 100 GΩ 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 TΩ Dial were used as the most significant dial, the accuracy would change to 6% for the output needed.
- Page 16 Section 2 OM9340-G1-00 20 December, 2024...
- Page 17 Section 3 RECEIPT AND INSPECTION 3.1. GENERAL Remove the instrument from its shipping container. The instrument was thoroughly tested and inspected before shipment and should be free from any electrical or 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 possible after receipt.
- Page 18 Section 3 OM9340-G1-00 20 December, 2024...
- Page 19 OPERATION AND MAINTENANCE 4.1. OPERATION The Model 9340 series of decade standards are calibrated at the front panel red and black binding posts. The accuracy specification is determined as the resistance value offset from the zero selection resistance value. Above 1 kΩ selection the zero resistance value is negligible. Below the 1 kΩ selection the zero resistance value of the decade standard needs to be taken into consideration to effect the specified accuracy.
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