6622A Datasheet - Guildline Instruments
Contents
1. 66224 SERIES OF DCC BRIDGES 6622A SERIES THE BEST IN ENGINEERING DESIGN AND INNOVATION An easy to use front panel menu system is common to all models eliminating in depth operator learning requirements IEEE 488 2 is standard on all models with the universally recognized Standard Code Programmable Interface SCPI based commands incorporated as the programming language of choice You can have a rack or bench mount model and even have your choice of front or rear terminals Your requirements your needs one family of instruments All 6622A Bridges now provide a full 10 digits of resolution and the ability to graphical see the data trending You can have the data presented in a summary or detailed format right on the Bridge Screen or available via PC Base BridgeWorks Software Measurement and Uncertainty Analysis you need as a Metrologist or to meet the requirements of ISO Accreditation Hj J ANON JO Fa Count 5 in 16 00000134532 18 208o gt 1 0000041936 R AE kh y 4 BGGOG 1 363 ta AAAA 13 35 td Dev 06 0014232 0 6822 JL ND Fe T eS Clear Sum BEFAR Examples of Actual 6622A Display Pictures Taken at Trade Shows N2. measurements without having to purchase multiple bridges The 6622A Series modular design allows you to buy what is required today with existing budgets and when workload requirements change simply expand your bridge to meet these requirements without any loss of your original investment Modular design provides a ONE BRIDGE solution reducing life cycle costs not only for equipment support but also for software development and technician training Modular design provides the perfect solution for current and future needs whether you need secondary uncertainties or a Primary Laboratory Standard The concept and implementation is easy You can start with the low cost 6622A Base DCC Bridge with uncertainties down to 0 1 ppm and measurement range to 100 kO Workload requirements demand higher measurement range Then start with the eXtended Range XR model with its measurement range to 100 MQ You can move to better uncertainties with an eXtended Performance XP or eXtended Performance amp Range XPR models You can even start with or upgrade to the world s leading High Voltage Model HV with uncertainties down to 0 02 ppm and a measurement range of 1 GO and with built in voltages to 1000 Vdc The 6622A Series Provides the Best Measurement Specifications Widest Range of Options and Most Innovative Modular Design of Any Commercially Available DCC Bridge If you already own the base model Guildline can upgrade this unit to provide e
3. verified and tested in a rack a little more than 36 high Complete turnkey solutions Test Setup Edit Test No A 1 Duplicate Insert Suggest Cear 4 Envi r Emn me FE Ea Test Configuration untitled SEQ Scanner Setup Edit Scanner Channel No A 2 fc Program Files Bridgew orks 1 Okohm template RES Rs Channeli 2 compared to Rs Channel aj ti at J 1 000 A mA in Ohms with the reference as JRs This Reversal Rate is DJ 60 s 4 Fixed with Auto Reversal Rate set to Disabled ata Threshold of J 0 000 ppm Stop the test if a Target Deviation of J 0 0000 ppm over a J 0 sample Window or at the J 100 Sample Limit Start Process 4 in J 1 seconds from now with a Between Test Delay of J 1 s For a complete automated resistance or temperature measuring system a 6622A Series bridge can be used with Guildline s 6664C Low Thermal Scanners and Guildline s 6634A Temperature Stabilized Resistance Standards When the Bridge is used with format All reports generated conform to traceability requirements of ISO 17025 BridgeWorks also provides additional temperature capability for those metrologists requiring this additional capability BridgeWorks enhances resistance capabilities on other laboratory Man GSH ss standards through the use of plugins and utilities These optional utilities l Crystal Reports and in HTML E Probe Configuration Untitied T90 2 boss im a Guildli
4. Extended Performance Extended Range to 100 MQ Extended Performance Special Range 100 kQ Extended Performance 1000 V 1 GQ Range All Bridges include Calibration Certificate Operator and Software manual and one set of Rs Rx Low Thermal Leads Add s Temperature Option to Bridge Report of Calibration Available at Nominal Charge Specifies Rear Terminals versus Front Terminals Default Service Manual Extra Charge 6622A SERIES OPTIONS BridgeWorks UPG 157XXUTL 13458 UTL Controller IEEE PCI IEEE 2m 6634A X 6623 66233 6623A 3 6623A 150 6623A 300 6623A 450 6623A 600 6623A 1000 6623A 2000 6623A 3000 6623A 6000 6623A 10000 6664C 3210 6664A 12 SCW 18 30 Upgrades BridgeWorks R to BridgeWorks C BridgeWorks C 57XX Resistance Calibration Utility BridgeWorks C 3458A Resistance Calibration Utility System Controller with IEEE and Software Integrated NI IEEE 488 2 Interface for a PCI slot Win 9X NT ME NI IEEE 488 2 Interface cable 2m double shielded Temperature Stabilized Resistance Standard for 6622A Series 100 A Direct Current Comparator Range Extender 100 A Programmable Power Supply for 6623 100A External 3A Range Extender for DCC Resistance Bridge External 150A Range Extender for DCC Resistance Bridge External 300A Range Extender for DCC Resistance Bridge External 550A Range Extender for DCC Resistance Bridge External 600A Range Extender for DCC Resistance Bridge External 1000A Range Extender for DCC Resistan
5. model 6622A XR eXtended Ra outstanding working measurement range of 0 001 Q all the way to 100 MO and with an internal 100 V supply The best part is No Buyers Remorse If you had previously purchased a 6622A Base Model and now your workload rument Atoa has evolved to higher values simply send the i ack to Guildline and we will enhance your 6 XR at a very attractive price A XPR Primary Need Pri ratory Performance Our has both the led Performance and Rang Level Performance at a secondary pricing previous 6622A eries model With 03 ppm measurement tainties 100 MQ range extension to 10 000 A this rue primary laboratory As an added bonus all DCC Perce aplete with BridgeWorks Softw curre unit i work ho series come ithin this BESTI highest 000Vdc imate ailable WHY NOT EQUIP Our 6622A HV High urement range 1 an 02 ppm this sta meas t capabilities today zan expand from e 6622A Base to 6622A XR or the 6622A XP and from all of these bridge models to the 6622A XPR and the 6622A HV Innovation performance and investment protection delivered with the ultimate in expansion flexibility R LABORATORY WITH age model has t
6. BASE aA ag outstanding Range 1mQ e 100k0 measurement range of 0 001 to 100 kQ with b st uncertainties starting at 0 03 ppm Waperfect solution to meet demanding or toads and laboratory budgets nly One Menu per One Software package for all Bri is Series Or sta t with the 6622A XP eXtende Model is model has the same measure range as the 6622A Base Model however the uncertainties pot the measurement ranges are signifi ar Performance already own 6622A and now your workload demands uncertainties simply return the to Guildline and we can expan 22A to a 6622A XP Instrument and internal menus will be the same and your soft cedures will still work the same instrument operation and calibration support but with the improved uncertainties you need The newest addition to our line is the 6622A eXtended Perform iace Special accuracy model This bridge can be upgra om our Base and XP series only and does not have the extended range available This bridge was the result of many NMI s asking for the best uncertainties available Guildline responded with the XPS model Specially calibrated for 1 1 ratios expect better than 0 015 ppm in the mid range of this bridge Note d that this is the only bridge that cannot be fitted with the Temperature option GJA see the Need a higher measurement range Move up to our
7. E Bridges are not self calibrating All Bridges must have an initial calibration done at time of manufacture and subsequently must be verified or re calibrated on a periodic time schedule Competitors misleadingly state that their Bridges are self calibrating but in reality their Bridges are calibrated the same way as all commercial bridges including Guildline s via external resistance standards Historically the verification that a precision DCC Bridge is operating as per its last calibration was challenging A Harmon type transfer standard was needed for the verification of a bridge s non 1 1 measurement ratios along with high technical skill levels With the introduction of the 6622A multi ratio bridge the verification of performance can be carried out with ease Frequent verification of the bridge performance can also provide insight into the bridge s short and long term stability to improve user s confidence levels and uncertainties The 1 1 measurement ratio can be easily verified by interchange measurement tests using two stable standard resistors of same nominal values as illustrated by the block diagram to the right Bridge 1 1 measurement ratio error e in ppm is calculated using the following formula Ratio R Ratio R2 1 2 R1 R2 1 10 Non 1 1 measurement ratios such as 10 1 and 100 1 ratios can be easily verified by closure measurement tests using three stable standard resistors as illustrated by the b
8. GUILDLINE INSTRUMENTS 6622A SERIES FEATURES Widest Available Range from 1 mQ 1 GO Modular Design Expandable Capabilities Complete Investment Protection Full 10 5 Digits 0 1 ppb Display Resolution Unique Measurement Trending Display Provides Measurement Results on Display Change All Key parameters on the fly while the measurement is running Built In Voltages to 1000 Vdc Linearity 0 01 ppm of Full Scale Resolution 0 0001 ppm of Full Scale Temperature Option Available Best Accuracy 0 015 ppm of Reading Wide Range of Ratios 0 1 1 100 1 Extended Low End Range Down to 1 uQ with Currents Up to 10 000 A Range Extenders in 150 A Increments with Built In Power Supplies and Switching Fully Programmable IEEE 488 2 BridgeWorks Data Acquisition Software Unique Calibration Support Strategy Complete Measurement Systems Available 6622A Series DIRECT CURRENT COMPARATOR RESISTANCE BRIDGES WORLDS FIRST ONE BRIDGE famity OF MODULAR AND EXPANDABLE DCC BRIDGES GUILDLINE INSTRUMENTS 6622A SERIES introduces new design concepts and the best in measurement uncertainties for Direct Current Comparator DCC Resistance Bridges manufactured by anyone today Unique innovations in 6622A design and modularity means users no longer have to decide what Bridge satisfies current requirements as well as guess as to what Bridge would meet future requirements Optional modules allow for normal high ohms and low ohms
9. X es Gt Serial Number 4633572 1ohm Channel Model 3250 Asset ID qaa ES 1 000000000E 0 A17 Loadif 1 Channel DMM s and others Each output value is calibrated by direct ratio transfer to the working set resistors not calculated as by Ranges From x1 Tod x 10M artifact calibration 100shm Channel There is even a utility for the automated calibration of decade J 1 Decade Range Setup c Apm 100chm Mi ET SE Jis kosal boxes This utility allows for direct calibration up to an 8 dial Steps TO Window E E nar T decade box spanning the full system measurement range The Accuracy JI 0 050 Samples JI 20 1Mohm Channel oy e Offset ohms A 000000 Rev Rae GJ 0 K O a alal utility is designed to measure the absolute resistance value of 10Mohm Channel each decade box step and determine if the value is within the Ohmi Cococoz 0 AEEA Channel J 32 Nes ET nominal tolerance specification The utility incorporates a Rs Scanner Channel 17 Samples Remaining 20 Current Value NaN Tolerance Ma provision to allow for trimming of an adjustable decade box Rx Scanner Channel 32 Tests Remaining 79 Next Sampleln 2 seconds such as the ESI 925 and supports both direct reading and standard decade boxes 66224 SERIES OF DCC BRIDGES 6622A SERIES SPECIFICATIONS Note The 6622A Base 6622A XP and 6622A XPS models are limited to a maximum of 100 kO with a maximum Rs Resistance Standard of 10 kO Because of th
10. and wide temperature operating environment look at our 6634A Temperature Controlled Resistance Standards These resistance standards are a rack or bench mount unit with up to 10 resistance values The values are in NE NS FY a shielded self contained 30 C o oo oo 9E J O temperature environment and a usable in a laboratory environment of 23 C 5 C This series is extended in high values up to 100 TO by our model 6636 No more need for oil baths For the best in air resistances see our 9334A 9336 and 9337 Series of Air Resistance Standards For multi channel operation look at our 6664C Scanners These 8 or 16 Quad channel scanners can handle up to 2 A of current or voltages up to 1000Vdc You can stack up to four scanners as needed with a total of 64 channels accessible by BridgeWorks Software NS For the best Unit Under Test UUT environmental control Guildline produces the 5030 Series of Precision Air Baths This series of programmable Air Baths not only maintain an ultra stable 0 03 C environment but also provide EMI and EMF Shielding within the high quality Stainless Steel Chamber sesa Dual Heaters Coolers Fans provide for operational redundancy and the unit is fully IEEE 488 programmable Control Resolution is a 0 001 C and a second channel is available for a second user programmable sensor that can be read directly on the front panel This bath incorporates an extensive Metrology based menu operation T i e TM A
11. ange Extender Series with the 6622A Series Bridge 5 Lowest possible Rx Ratio is defined as Rxiow Rs x 08 and Maximum possible Rx Ratio is determined by Rxhigh Rsx 107 5 6 Maximum Upper Range is limited to 134 kO for 6622A 6622A XP and 6622A XPS with the maximum R allowed as 10 KO 7 Maximum Upper Range is limited to 134 MQ for 6622A XR and 6622A XPR with the maximum R allowed as 10 MQ 8 Maximum Upper Range is limited to 1 34 GO for 6622A HV with the maximum R allowed as 100MQ based on 1000 V 3 YEAR RATIO SPECIFICATIONS 662ZA SERIES OF DCC BRIDGES 6622A SERIES GENERAL SPECIFICATIONS Linearity 0 01 ppm of full scale Full scale defined as 13 4 1 and 100 1 Display resolution ppm Selectable Programmable from 0 0001 ppm to 10 ppm Temperature Coefficient 0 01 ppm C of reading 4 sec to 1637 sec s programmable increment of 1 second Automatic current reversal rate in seconds s 2 seconds IEEE 488 2 SCPI Based Language Instructions 10 UA 150 mA extension to 10 000A available 1 WA Accuracy error ppm offset A 100 ppm 10 LA Voc Range t1mA compliance 0 100 Vdc XR and XPR models HV Model has 0 1000 Vdc 1 V for Bridges with 100 Volt Module 256 bit for 1000 Volt Model 4V Fastest Measurement Sample Rate Communication Tact Gure or Usable range 30V compliance A measurement to Resolution LA 100kQ2 Test voltage for measurement Resolution V above 100kQ Accu
12. ce Bridge External 2000A Range Extender for DCC Resistance Bridge External 3000A Range Extender for DCC Resistance Bridge External 6000A Range Extender for DCC Resistance Bridge External 10000A Range Extender for DCC Resistance Bridge 8 or 16 Channel 2 A Low Thermal Scanner 8 Channel Thermometry Adapter with Pre Heat SCW Lead pair with gold plated banana plugs 2m in length 30 Meters Shielded Copper Low Thermal Wire 18 Gauge Many other types of test and communication leads and accessories are available Guildline Instruments Limited 21 Gilroy Street PO Box 99 Smiths Falls Ontario Canada K7A 459 Phone 613 283 3000 Fax 613 283 6082 Web www qguildline com Email salesoguildline com 20149 00 85 REVL COPYRIGHT 2013 11 26 GUILDLINE INSTRUMENTS LIMITED ALL RIGHTS RESERVED SPECIFICATIONS AND SUBJECT TO CHANGE WITHOUT NOTICE 11
13. e unique variable ratios available on all models it is possible to measure UUT s with a variety of Rs Standards For example a 10 kO UUT could be measured with a 100 O 1 kQ and 10 kQ Resistance Standard Rs To determine the measurement uncertainty due to the bridge simply look at the Rs you are using and then go to the appropriate UUT Sub range 6622A Base om aot ot RESISTANCE 2 STANDARD 3 YEAR RATIO SPECIFICATIONS 08 gt Rx lt 63 lt Acunrano i gt 0 08 gt Rx lt 08 0 8 gt Rx lt 6 3 0 03 ppm lt 1Q 0 6 ppm 0 1 ppm 0 03 ppm lt 10 gt 0 6 ppm 0 1 ppm 0 03ppm lt 1000 i 0 1 ppm 0 03ppm lt ika 0 1 ppm Low Ohms Ratios 6622A XR RTO sosem OPM OOo ommo oon O o Base Range 1 mQ 100 MO ACTUAL RATIO gt 0 8m gt Rx lt 0 008 0 008 gt Rx lt 0 08 RESISTANCE STANDARD a Krunkano e 008 gt R lt 08 08 gt Rx lt 63 aN NOMINAL RATIO gt 0 7 3 YEAR RATIO SPECIFICATIONS e E 0 lt us 0 0 25 ppm 1 MQ 2 5 ppm 0 6 ppm 0 8 ppm 2 0 ppm 10 MO 8 ppm 4 ppm HV MoDEL 6622A SERIES Or DCC BRIDGES Lovv Ohms Ratios 6622A XP XP Range 1mQ 4 gt 100 kQ ITERCHANGE RESISTANCE 4 ee 3 YEAR RATIO SPECIFICATIONS ar TJ naw P lt lt 0 02 ppm lt 100 Q 0 03 ppm lt 10 kQ gt gt Low Ohms Ratios 6622A XPR IG 03 non 86 pon Nomin Ro w OOA XPR Range 1 MQ lt 100 MO 0 8m
14. ects of temperature environment even when used in a calibration laboratory environment of 23 C 3 C 66224 SERIES OF DCC BRIDGES 6622A BRIDGEWORKS SOFTWARE Not only does Guildline provide unique DCC Bridge hardware but we offer complete new solutions for software as well The software program called BridgeWorks is now provided for setup control measurements and reporting BridgeWorks is provided free with any of the Bridges in the 6622A Series Optional BridgeWorks plugins are available to expand BridgeWorks functionality Users can always upgrade to BridgeWorks should the requirement arise in the future BridgeWorks is the upgrade path for current ResCal users BridgeWorks software is extremely powerful yet straight forward and user friendly The software comes with all of the useful and convenient features commonly found in window based commercial software programs On line context help is available to provide added assistance in understanding the functions of the software BridgeWorks was developed in LabVIEWO offering direct compatibility to all National Instruments GPIB interfaces These interfaces come in a wide variety of connection options to your PC such as USB FireWire Ethernet PCI PCMCIA RS232 485 and more Guildline can even provide a complete Resistance Measurement System vvith the 6622A Series ONE BRIDGE solution by adding Resistance Standards Scanners Range Extenders and software This system is integrated
15. gt Rx lt 0 008 0 008 gt Rx lt 0 08 RESISTANCE STANDARD 3 YEAR RATIO SPECIFICATIONS 0 8 gt Rx lt 6 3 lt AcTuALRATIO I 0 8 gt Rx lt 6 3 13 4 gt Rx lt 107 5 0 02 ppm lt 1 Q gt 0 05 ppm 0 1 ppm 0 02 ppm lt 100 0 05 ppm oe 0 02ppm lt 1000 0 05 ppm 0 3 ppm 0 02ppm 4 1ko 0 05 ppm rs 0 03 ppm lt 10 kQ gt 0 05 ppm 3 ppm 0 1 ppm 4 100 KO pl to7ppm 0 2 ppm 6 ppm 0 2 ppm 1 MO 0 4 ppm 8 ppm 1 5 ppm 10 MQ 25 ppm 4 ppm HV MopDEL 66224 SERIES OF DCC BRIDGES Low Ohms Ratios 6622A XPS orap 207mm T sosom Norme 00o XPS Range 1mQ lt 100 kQ 0 8m gt Rx lt 0 008 0 008 gt Rx lt 0 08 RESISTANCE 2 3 YEAR RATIO SPECIFICATIONS A nomnam ef ont a ton 0 015 ppm 0 0 3 ppm 0 8 ppm 0 03 ppm lt HV MopeL 6622A HV RIO PJ ozem teseen rome ooa RESISTANCE STANDARD E ef ont ato 1 Interchange specification i e sometimes referred to as a self calibration and Low Ohms Ratio specifications refer to 6622A Manual for additional information about Low Ohms and Interchange specifications 2 3 Year Calibration interval with annual performance verification automated 3 Specifications are based on 10 mW R power dissipation or the maximum current in Rs or the limit of 6622A output and temperature of 23 C 3 C 4 Ratio uncertainties Less than 0 08 1 for Rs 10 Ohm and below are calculated using 6623A R
16. lock diagram to the right Bridge non 1 1 measurement ratio error e in ppm is calculated using the following formula Ratio Rp Ratio Rc 1 3 Ra RR R Ra 10 1 3 Ra b c a Ratio Ra Note Resistance values in these block diagrams are only representative values and are selected for the illustration of methodology only WARRANTY Over 58 Years of Guildline innovation in engineering and design ONE BRIDGE providing complete expandability and flexibility that meets your current and future measurement needs Options that satisfy real measurement needs and provide complete investment protection How can you improve Simple Offer an industry leading 2 Year Warranty to show your confidence All 6622A Series of DCC Bridges now come with a 2 year Warranty that covers both parts and labour 10 66224 SERIES OF DCC BRIDGES SERVICE AND SUPPORT Guildline is pleased to announce that they are ISO 17025 Accredited We have the widest range of resistance accredited with a range of 1 pQ all the way to 10 PQ Whether you own a Guildline product and have other manufacturer s standards call today and see what we can do for you GUILDZ IS DISTRIBUTED BY ORDERING INFORMATION Model 6622A B 6622A XR 6622A XP 6622A XPR 6622A XPS 6622A HV T RC RT SM6622A Specify One Of Following Models Bench or Rack Base Accuracy Range 100 kQ Base Accuracy Extended Range to 100 MO Extended Performance Range 100 kQ
17. nd Guildline s innovation continues with the 66252 DMM Switch The purpose of this switch is to peg electrically isolate the Bridge when using Resistance Standards that are connected to a scanner This usefulness can be seen using a 5700 Calibrator as an example The user is able to connect resistance standards that are on a scanner channel to Artifact calibrate the Calibrator and then simply switch over and run the complete Resistance verification of the 5700 values including the 1 9X Values BRIDGE 66224 SERIES OF DCC BRIDGES Guildline also provides full system solutions and full system integration Need a base system with one scanner and a resistance standard in a rack Nota problem Need a 6622A XPR with 48 channels _ Resistance Standards and with Range Extension to 900 As We can do it In fact Guildline has produced over one hundred 6622A based systems complete with Range Extension Multi Channel Scanners and Resistance Standards all in a 36 rack Units were supplied with all hardware software installed tested and verified Need the ultimate resistance measurement in a single stand solution Combine any one of the 6622A Series Bridges with a 6634A Temperature Stabilized Resistance Standard a 150A to 600A Range Extender for low Ohm measurements and a 6520 Digital Programmable Teraohmmeter Start measuring from 1 pQ all the way to 10 PQ Just ask what Guildline can make for you VERIFICATION OF PERFORMANC
18. ne low thermal matrix scanner the software can turn the bridge into a E multiple channel calibration and measurement system Timed sequenced single or 15 80 Coefficients Report multiple tests can be initiated while the bridge is unattended All user definable test variables such as excitation current reversal rate etc can be programmed on a per Fixed Point Measurements Coefficients test basis giving the users full control and flexibility in conducting well designed ATII NaN Go vici s si e experiments Additionally internal utilities reside within the software to enhance and ATIZn Nan b 1 145083660E 1 simplify the calibration of the 6622A Series DCC Bridge by using the Guildline aren senna 6634A Series of T ture Stabilized Resistance Standard ies Nis i eries of Temperature Stabilized Resistance Standards ATi4g NaN Ea Report 5700 FLK ej n Range 4 189 35to0C BridaeWork Soft r AT Ar 2158975000E 1 ridqgeWorKs ortware RT Sn NaN provides comprehensive RT Ha 8 441421100E 1 graphic display math functions Element Values ohms Uncertainties ppm _ i E vdis pm and trend analysis Data can be Model Number 1683 CalDate 2006 07 15 easily exported to MS Excel 1 899969515E 1 2 150 2 416 9 9999663888 2 2 158 include calibration routines for High End Calibrators such as the Fluke 5700A and 5720A Series Agilent 3458A Long Scale I w Ea Decade Box Utility untitled BO
19. nt models such as the 150A and now need 900A no worries Just return the unit to Guildline and we will upgrade it to a 900A model for you Your Investment is protected NOTE that NO external power supplies NO external mechanical switches and NO compressed air are required for operation This results in dramatically reducing the purchase installation cost as well as ongoing training calibration support and operating costs The 6622A 150 and 6623A 300 can both be operated from a single phase 120VAC input and do NOT require a dedicated 3 phase circuit For More information about the 6623A Range Extenders and Specifications Please refer to the 6623A Series Datasheet 66224 SERIES OF DCC BRIDGES NEW 6622A T OPTION FOR THERMOMETRY APPLICATIONS Using the latest DC current comparator technology Guildline model 6622A Series are very well suited for temperature calibration and their measurement ranges are designed for thermometry DCC bridges have inherently better noise immunity to external electromagnetic and mechanical noise Measurements are conducted in true four terminal mode so long test leads can be used Since excitation current is DC reactance introduced by the probe and probe leads does not affect measurement accuracy Thermal EMF is eliminated by periodic polarity reversal that is programmable by the user The built in extremely stable current supply permits selection of output currents between 20UA and 150mA to satisfy a wide
20. ote Std Dev is in ppm showing ppb performance Every effort has been taken in the 6622A Series design to reduce noise and error Thermal EMF effects are eliminated by automatic current reversal The unique architecture of the bridge and its control algorithm further removes gain and offset errors in the nanovolt balance detector and the precision toroid The end results are shown by long term accuracy and linearity without the need for routine frequent verification tests or calibrations The 6622A bridges can be used in either a fixed or automatic reversal rate mode of operation In fixed reversal rate mode automatic current polarity reversal is programmable updating measurements from every 2 seconds to 14 minutes Unique computerized measurement mode provides automatic reversal rates optimizing the polarity reversal rate In resistance measurement the fastest measurement speed is achieved while maintaining required measurement uncertainty In temperature applications this feature makes it possible to track fast changing temperatures And it s not just the modularity that makes the 6622A Series unique and the best ONE BRIDGE solution offered today Historical limitations of 13 1 ratio ranges have been eliminated With new resistance measurement ratios from 0 001 1 up to 100 1 the 6622A series allows the ultimate flexibility in choosing standards 100 1 Transfer 10 ka to 1 MQ Guildline Calibration Services Test Overview Measured Ohm
21. racy error 0 2 of full scale voltage output Bridge Operating Temperature to Full Specifications 23 C 3 C I3 FES F Bridge Maximum Operating Range lt 50 RH 18 C to 25 C 65 F to 82 F Bridge Temperature Storage Range T 20 C to 60 C 4 F to 1 40 F Power Requirements VAC 100V 120V 220V and 240V 10 50 or 60Hz 5 200VA NEW 6623A SERIES OF MODULAR RANGE EXTENDERS Range Extenders allow DCC Bridges to measure lower resistance values including current shunts at higher current Using proprietary technologies Guildline engineers have again provided our customers with the most value and flexibility in expanding their shunt measurement capability For calibration at higher currents additional range extenders can be cascaded by the 6622A to expand the maximum allowable current for improved calibration uncertainty The range extender carries out polarity reversal automatically at user selected intervals Standard models are 6623A 3 6623A 10 6623A 150 6623A 300 6623A 450 6623A 600 6623A 1000 6623A 2000 and 6623A 3000 6623A 6000 6623A 10000 each with built in current source with maximum currents of 3A 10A 150A 300A 450A 600A 1000A 2000A 3000A 6000A 10 000A respectively Pictures of the rear connections for the 300 Ampere top right and 3000 Ampere left models are shown Models with other maximum current levels are available in multiples of 150A If you buy lower curre
22. range of sensitivity requirements Root square values can be conveniently chosen from the instrument front panel or via software Temperature conversion and display is done on the front panel or on a PC using the BridgeWorks C software All 6622A models can be expanded to address temperature requirements without the need for a separate thermometry bridge separate software or manual calculations The menu operation and calculations are done internally via firmware and the results can be viewed on the front panel in ohms C F and K The menu also provides the ability to change Temperature Scales display graphics and control all parameters One of the key features of the temperature option is how the unit is calibrated This option means that the 6622A is specifically tested at the lower currents 1 mA found in thermometry and these offsets are stored separately from the Resistance calibration constants U AS 3210 THERMOMETRY PRE HEAT AUTO SWITCH Not only does Guildline provide the temperature option for the bridge but check out our full line of thermometry options including our new 3210T Thermometry Auto Svvitch This adaptor provides programmable and individual constant keep warm current to all SPRT s connected substantially reducing the time for calibration over the competition MAKING THE 6622A SERIES EVEN BETTER Guildline provides a variety of standards to support the 6622A Series of Bridges For the ultimate in ease of use
23. s Samples in Ohms Best Fit 9 999961 800E 5 9 999961 700E 5 9 999961 600E 5 9 999961 500E 5 9 999961 400E 5 9 999961 300E 5 9 999961 200E 5 9 999961100E 5 9 999961 000E 5 9 999960900E 5 9 999960800E 5 9 999960700E 5 9 999960600E 5 9 999960500E 5 9 999960400E 5 T MM 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Samples Just take a look at results from using a 10 kQ Resistance Standard to 1 MQ UUT Unit Under Test measurement in a typical 100 1 measurement The results are good very good Wider measurement ratios equate to fewer standards required to perform measurements In fact the 6622A series can be used for measurements from 1 uQ to 100 MQ with just 4 four Resistance Standards required Another advantage is that temperature stabilized resistance standards both oil based and air based which have very low temperature coefficients can now be used to characterize high value resistors which typically have high temperature coefficients For example you can now use a 100 kO Resistance Standard Rs from an oil bath to verify Rx values up to 10 MQ If you were to examine a typical measurement uncertainty workup measurement uncertainties due to your resistance standard temperature coefficients are practically eliminated The 6622A Series when used with the Guildline Instruments Model 6634A or Model 6636 Temperature Stabilized Resistance Standards effectively eliminate errors due to the aff
24. xtended range extended performance or even improve both range and uncertainties The choices are yours and designed to meet your workload not ours Best of all your current software programs will work and the menus will be the same thus dramatically reducing learning curves and training requirements Ongoing operating costs are also dramatically reduced because a ONE BRIDGE series offers reduced support costs when the time comes for calibration Available Bridge expansions for all models include external current range extenders at 3 A and 10 A and at 150 A increments up to 10 000 A internal voltages to 1000 Vdc and complete temperature capability Or simply invest in the best from the beginning 662ZA SERIES OF DCC BRIDGES The unique design is based on over 30 years of knowledge and experience in building DCC Bridges Innovation abounds and your Investment is protected When you buy any 6622A Series Bridge it s as if you know them all Menu operation measurement setup measurement operation and software are identical among all models When you want extended range or enhanced performance you still have only ONE BRIDGE to support for calibration Just look at the models and expansion paths available for you with the 6622A Direct Current Comparator ONE BRIDGE Series 6622A SERIES MODELS AND EXPANSION PATHS You can start with our very competitively priced 6622A Base unit The 3 YEAR ACCURACY 0 1 ppm 6622A Base unit 6622A
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