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3

SRC-Tnetwork

3

Specifi cations

Chapter 2

 

SPECIFICATIONS

For convenience to the user, the pertinent specifi cations are given in an 

OPERATION GUIDE

Calibration conditions: 

At 23°C, low power, accredited calibration traceable to SI 
Using  T-network  calculation  based  upon  calibration  of  the  3  internal 
resistors at a maximum of 200 V.

Terminals:

3 gold plated, low thermal-emf binding posts for Source, Output and 
Guard, 1 binding post for Ground and one bnc for Center Tap.

Dimensions:

 9 cm W x 11.5 cm L x 5 cm H 

 

     (3.5" x 4.5" x 2”)

Weight:

 0.45 kg (1 lbs)

 

Operating temperature range:

 - 55 to 70°C < 80% RH 

Altitude: 

  <2000 m 

Enclosure:

 Cast Aluminum housing to minimize noise

Model

SRC-

Nominal

(

W

)

Initial 

Adjustment to 

Nominal

(ppm)

C a l i b r a t i o n 

Uncertainty

(Typical)

(ppm)

Stability

1 year (ppm)

Tempco

(ppm/°C)

Voltage 

Coef.

(ppm/V)

Resistor 

type

Max. Voltage

(V)

10T-Tnetwork

10 T

±

1%

750

±

500

±

25

1

 precision thick 

fi lm resistors in a 

T-Network

5000

20T-Tnetwork

20 T

50T-Tnetwork

50 T

100T-Tnetwork

100 T

Summary of Contents for SRC-10T-Tnetwork

Page 1: ...il info ietlabs com TEL 516 334 5959 FAX 516 334 5988 www ietlabs com IET LABS INC SRC Tnetwork Resistance Standard User and Service Manual Copyright 2022 IET Labs Inc Visit www ietlabs com for manual...

Page 2: ...PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT Email info ietlabs com TEL 516 334 5959 FAX 516 334 5988 www ietlabs com IET LABS INC...

Page 3: ...t no charge when returned to IET Changes in this product not approved by IET or application of voltages or currents greater than those allowed by the speci cations shall void this warranty IET shall n...

Page 4: ...2002 96 EC This product complies with the WEEE Directive 2002 96 EC marking requirements The a xed label indicates that you must not discard this electrical electronic product in domestic household w...

Page 5: ...e taken Make all connections to the instrument before applying power Note the instrument s external markings described under Safety Symbols DO NOT Operate in an Explosive Atmosphere Do not operate the...

Page 6: ...USED TAKE ALL MEASURES TO AVOID ACCIDENTAL CONTACT WITH ANY LIVE COMPONENTS USE MAXIMUM INSULATION AND MINIMIZE THE USE OF BARE CONDUCTORS WHEN USING THIS INSTRUMENT Use extreme caution when working w...

Page 7: ...3 3 Thermal emf Considerations 5 3 4 Environmental Conditions 5 3 4 1 Operating Temperature 5 3 4 2 Storage Temperature 5 3 5 Shipping and Handling 5 Chapter 4 Maintenance 7 4 1 Maintainability and R...

Page 8: ...vi...

Page 9: ...to the positive negative and guard terminals of the megohmmeter The ratio of the resistors then determines the e ec tive resistance value that will actually be displayed by the megohmmeter The advanta...

Page 10: ...2 SRC Tnetwork 2 Specifications Figure 1 1 SRC Tnetwork Standard Resistor 100 TW RESISTANCE STANDARD MODEL SRC 100T T network SOURCE OUTPUT CENTER TAP GUARD GND...

Page 11: ...ts for Source Output and Guard 1 binding post for Ground and one bnc for Center Tap Dimensions 9 cm W x 11 5 cm L x 5 cm H 3 5 x 4 5 x 2 Weight 0 45 kg 1 lbs Operating temperature range 55 to 70 C 80...

Page 12: ...4 SRC Tnetwork 4 Specifications Figure 1 1 Typical Operating Guide a xed to the SRC 100T Tnetwork...

Page 13: ...ctrometer or megohmmeter such as the IET 1865 Plus 1865 Plus Connections When connecting to the IET 1865 Plus remove the shorting link between the GND and Guard Terminal and connect the SRC 100T as sh...

Page 14: ...temperature variation 3 3 2 Storage Temperature The SRC Tnetwork should be maintained within the storage temperature range of 0 C to 40 C to retain its accuracy within the speci ed limits 3 4 Shipping...

Page 15: ...f an SRC Tnetwork is employed as a stand alone device the following should be observed Calibration Interval General Considerations Required Equipment Calibration Procedure 4 3 1 Calibration Interval T...

Page 16: ...or direct measurements 4 3 4 Calibration Procedure To calibrate an SRC Tnetwork proceed as follows 1 Set up the calibration equipment in the resis tance measurement mode 2 Measure R1 R2 and R3 The bnc...

Page 17: ......

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