8508A Reference Multimeter Accessory Guide 8.5 Digit Data Sheet Brochure

User Manual: 8508A-8.5-Digit-Reference-Multimeter-Data-Sheet-Brochure

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Technical Data

8508A Reference Multimeter

accessory guide

Introduction

The 8508A Reference Multimeter is

complemented by a comprehensive

range of accessories, all of which are

designed to help you get the most

from your reference multimeter.

This datasheet explains in more

detail the make-up of each accessory

and offers technical specifications

where required.

Accessories currently available for

the 8508A Reference Multimeter

include:

•8508A-LEAD

Comprehensive Measurement

Lead Kit

•8508-7000K

Calibration Kit

•8508A-SPRT

Standard Platinum Resistance

Thermometer, 25.5 ohm

•8508A-PRT

Platinum Resistance Thermometer,

100 W

•Y8508

Rack Mount Kit

•Y8508S

Rack Mount Kit Slides

•NVLAP

NVLAP Accredited Calibration

Ordering Information Item Number

4022363

•UKAS

UKAS Accedited Calibration

Ordering Information Item Number

1883673

8508A-LEAD

Qty. Description

41.5 m two core screened low thermal cable with gold plated

6 mm copper spade terminals

11 m screened 322/0.1 copper core (30 Amp rating) with 6

mm gold plated coper spade terminals

1General purpose probe kit and wallet includes:

2x test leads with 4 mm safety shroud plugs (red and black)

2x test probes (red and black)

2x crocodile clips (red and black)

2x 4-wire zero PCB

The 8508A Reference Multime-

ter has excellent performance

specifications. But stability and

accuracy can often be compro-

mised by the use of inappropriate

connecting leads and associ-

ated processes when performing

measurements.

The 8508A-LEAD set includes

high quality, low leakage,

low dielectric absorption PTFE

insulated cables, terminated

with 6 mm gold plated copper

spade terminals. Their insula-

tion properties make them

ideal for resistance and current

measurements minimizing leak-

age current and charge storage

problems, their low capacitance

makes them ideal for ac applica-

tions, and the 6 mm gold plated

copper spade terminals ensure

low thermal emfs for dc voltage

and resistance work.

A general purpose lead kit

which includes test probes

and alligator clips provides the

convenience of making rapid

connections for less demanding

applications and troubleshooting.

It also includes two four-wire

shorting PCBs (used to null front

and rear inputs).

8508A-7000K

The Fluke 8508A-7000K Cali-

bration Kit contains a specially

designed lead set, 1 GW stan-

dard resistor and two four-wire

shorting P.C.B.s for performance

verification and calibration

adjustment of the 8508A. The

lead set allows the 8508A to be

connected to a 5720A calibra-

tor and a 5725A amplifier in

the configuration described in

the 8508A User Manual Calibra-

tion and Verification chapter,

enabling users to exactly dupli-

cate the setup used for factory

calibration.

The leads are constructed from

low capacitance, low leakage

dielectric material (PTFE), with

low thermal emf 6 mm gold

plated copper spade termina-

tions. The 1 GW standard resistor

plugs directly into the 8508A

front input terminals without any

inter-connecting leads, minimis-

ing errors from lead effects and

noise pickup. It is specified for

stability with time (100 ppm/yr)

and temperature (25 ppm/ °C),

and is supplied with a calibration

certificate stating its measured

value to an uncertainty of

110 ppm.

8508A-LEAD kit contents

2 Fluke Calibration 8508A Reference Multimeter accessory guide

8508A-SPRT

• Measure temperatures as high

as 661 °C

• Inconel™ and platinum sheaths

guard against contamination

• Less than 10 mK/year drift

• Fifth wire provides shield

ground

8508A-PRT

• Range to 660 °C

• Meets all ITS-90 requirements

for resistance ratios

• Rtp drift < 30 mK after 500

hours at 660 °C

• Strain-free sensor design

The Fluke 8508A-SPRT Extended

Range Metal-Sheath SPRT and

8508A-PRT Secondary Standard

PRT Temperature Sensors have

8508A-7000K (cont.)

Quantity Description

11 GΩ resistor – 100 ppm/yr and 25 ppm/°C stability,

factory calibration uncertainty 110 ppm (95 %CL)

1Screened lead set that connects 8508A Reference

Multimeter to 5720A and 5725A Precision Calibrator

and Amplifier

2Four-wire shorting P.C.B. (used to null front and rear

input)

1Carry case

been designed and manufactured

to complement the Fluke 8508A

Reference Multimeter’s precision

PRT temperature function.

Fluke Calibration

PO Box 9090,

Everett, WA 98206 U.S.A.

Fluke Europe B.V.

PO Box 1186, 5602 BD

Eindhoven, The Netherlands

For more information call:

In the U.S.A. (877) 355-3225 or Fax (425) 446-5116

In Europe/M-East/Africa +31 (0) 40 2675 200 or Fax +31 (0) 40 2675 222

In Canada (800)-36-FLUKE or Fax (905) 890-6866

From other countries +1 (425) 446-5500 or Fax +1 (425) 446-5116

Web access: http://www.flukecal.com

© 2003, 2010, 2012 Fluke Corporation. Specifications subject to change without notice.

Printed in U.S.A. 1/2012 2091295C A-EN-N Pub-ID 10754-eng

Modification of this document is not permitted without written permission from Fluke Corporation.

Fluke Calibration. Precision, performance, confidence.™

8508A-SPRT 8508A-PRT

Temperature range -200 °C to 661 °C -200 °C to 660 °C

Nominal RTFW 25.5 Ω (± 0.5 Ω) 100 Ω (± 1 Ω)

Calibration

uncertainty ± 2.1 mK @ 660 °C ± 15 mK @ 661 °C

Sensitivity 0.1 Ω/°C 0.4 Ω/ °C

Drift rate <10 mK per year

max. 2-3 mK per year

typical

< 30 mK per

500 hours at 660°C

Stability ± 3 mK ± 3 mK

Protective sheath Iconel™ 600

5.56 mm dia. x

482 mm L (0.219 in

dia. x 19 in L)

Iconel™ 600

6.35 mm dia. x

381 mm L (0.25 in

dia. x 15 in L)