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Safety Symbols

General defi nitions of safety symbols used on the instrument or in manuals are listed below.

Caution symbol: the product is marked with this symbol when it is necessary for the user to 
refer to the instruction manual.

Hazardous voltage symbol: the product is marked with this symbol when high voltage maybe 
present on the product and an electrical shock hazard can exist.

Indicates the grounding protect terminal, which is used to prevent electric shock from the 
leakage on chassis.  The ground terminal must connect to earth before using the product

Direct current.

Alternating current.

Frame or chassis terminal. A connection to the frame (chassis) of the equipment which 
normally includes all exposed metal structures.

On supply.

Off  supply.

Hot surface. Avoid contact. Surfaces are hot and may cause personal injury if touched.

Disposal

Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC
This product complies with the WEEE Directive (2002/96/EC) marking requirements.
The affi

  xed label indicates that you must not discard this electrical/ electronic product in domestic 

household waste.
Product Category: With reference to the equipment types in the WEEE directive Annex 1, this product 
is classifi ed as a “Monitoring and Control instrumentation” product.

Do not dispose of electrical appliances as unsorted municipal waste, use separate collection facilities.  

Contact your local government for information regarding the collection systems available.  If electrical 
appliances are disposed of in landfi lls or dumps, hazardous substances can leak into the groundwater 
and get into the food chain, damaging your health and well-being.  

When replacing old appliances with new one, the retailer is legally obligated to take back your old ap-
pliances for disposal.

Proposition 65 Warning for California Residents

WARNING

: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.   

This product may contain chemicals known to the State of California to cause cancer, birth defects, or 
other reproductive harm

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...

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