Ohm Standard Resistor Optics Positioner Laser Optics Bin 3 Unknown Optics Laser Optical Bin 3 Current Calibrator Calibrator Standard Pneumatic Calibrator Cable For Accelerometer Omega Calibrator Ea Optics Thermocouple Calibrator Optics Bin 4 Standard Inductor Unknown Application Calibrator 0 Piezoelectric Accelerometer Calibration Vibration Optical Bin 1 Optical Bin 3 Precision Calibrator Loop Calibrator Resistance Standard Voltage Standard Dead Weight Tester Tester Calibrator Resistance Decade Multifunction Calibrator Vintage Microscope Objective Guildline Calibrator Tested Frequency Standard Oscillator Ac Calibrator Portable Calibrator Process Calibrator Laser Optics Bin 1 Standard Capacitor Altek Calibrator Dc Calibrator Altek Model Decade Resistance Decade Resistance Box Hp Calibration Kit Ohm Resistance Standard Mil Spec Laser Optics Decade Resistor Mil Spec Laser Optical Optics Bin 3 Torque Tester Fluke Standard Esi Resistor Druck Calibrator Optics Assembly Huge Optics Dead Weight Pcb Accelerometer Fluke 5100B Transmation Pps Mm Dia Fl Optics Window Ametek Calibrator Dc Voltage Calibrator Optical Mounted Prism Laser Optics Optics Coated Lens Lens Mil Spec Laser Optics Pressure Calibration Flow Calibrator Calibrator Type Calibrator Thermometer Documenting Process Calibrator Fluke 5100B Calibrator Optics Fixture Iet Digital Calibrator Hp Calibrator Newport Optics 10-32 For Accelerometer Optics Prism Rubidium Frequency Standard Rubidium Standard Transmation Druck Dpi Optics Device Rubidium Frequency Mm Laser Optics Standard Resistor Temperature Calibrator Standard Cell Rtd Calibrator Bliley Quartz Pcb Piezotronics Piezotronics Quartz Crystal Frequency Altek Calibration Fixture Calibrator Hart Leitz Wetzlar Germany Microscope Frequency Calibrator Pure Chemical Coated Laser Optics Tektronix Calibration Calibration Model Calibrator Free Shipping Nist Calibrator Microscope Ocular Genrad Gr Gr General Radio Genrad Pressure Module Optical Prism Optics Coated Filter Rubidium Optics Glass Melles Griot Optics Voltage Calibrator Hart Scientific Torque Calibrator Thermometer Calibrator Dc Voltage Standard Programmable Calibrator Dry Calibrator Optics Lens Convex Datron Transmation Model Meter Calibrator Bliley Calibration System Torque Analyzer Filter Laser Optics Quartz Oscillator Optical Coated Optics Beam Splitter Calibrator Source Radio Genrad Vibration Sensor Verification Kit Calibrator Module Optics Micrometer Endevco Nice Optics Ametek Jofra Infrared Laser Optics Lamp Microscope Bin 11 Ea Lamp Dc Reference Standard Resonator Frequency Reference Standard Endevco Meggitt Accelerometer Accelerometer Pressure Charge Amplifier Guildline Standard Resistor- Accuracy 9330 Portable Pressure Calibrator Electro Scientific Industries Voltage Current Calibrator Calibration Standard Decade Capacitor Endevco Model Range Calibrator Ge Druck Dpi Bin Pmel Dead Weight Pressure Meter Calibration Resistance Calibrator Fluke 5700A Microscope Objective Optics Valhalla Scientific Leeds Northrup Primary Flow Calibrator Calibrator Multimeter Japan Optics Frequency Standard Calibrator Signal Resistor 100 Mirror Laser Optical Low Noise Cable Japan Microscope Beam Splitter Bliley Crystal Multifunction Process Calibrator Short Load Voltage Divider Dry Block Calibrator Mirror Laser Optics Torque Meter Nist Mirror Filter Optics Flat Calibrator Pump Transfer Standard Chip Resistor Calibration Test Datron Wavetek Analyzer Calibrator Positioner Stage Efratom Genrad Precision Decade Bin 7 Fluke Hart Scientific
 In 
 
Order by: 
Available to: 
Price: 
 - 
$
1,500
Buy It Now
Free Shipping
Condition: Used
Location: Jupiter,FL,USA
$
3,378.49
Buy It Now
Free Shipping
Condition: Used
Location: Phoenix,AZ,USA
$
10,619.95
Buy It Now
$0 Shipping
Condition: New
Location: Melrose,MA,USA
$
8,805
Buy It Now
$0 Shipping
Condition: New
Location: Melrose,MA,USA
$
17.69
Buy It Now
$0 Shipping
Condition: New
Location: China
$
8.99
Buy It Now
$5 Shipping
Condition: New
Location: China
$
21,990
Buy It Now
$215 Shipping
Condition: Seller refurbished
Location: Studio City,CA,USA
$
9.59
Buy It Now
$0 Shipping
Condition: New
Location: China
$
16.22
Buy It Now
$0 Shipping
Condition: New
Location: China
$
32.76
Buy It Now
$0 Shipping
Condition: New
Location: USA
$
34,950
Buy It Now
$225 Shipping
Condition: Used
Location: Culver City,CA,USA
$
298.83
Buy It Now
$105 Shipping
Condition: Used
Location: Ukraine
$
4,162.5
Buy It Now
$0 Shipping
Condition: Used
Location: Mukilteo,WA,USA
On Products over $75) GE Druck DPI 620/G Genii Series Advanced Modular Calibrator with HART Communicator New- Factory Authorized Distributor- Factory ... moreWarranty New color scheme to reflect a unified M&C branding going forward Complete HART communicator included Optional Foundation Fieldbus communicator Modular re-rangeable and expandable concept Individual components can be used as stand-alone instruments The GE Druck DPI 620 Genii is a flexible modular calibration system that uses three basic components to perform multiple functions that formerly required a wide range of different instruments. The basic component of this system is the GE Druck DPI 620 Genii multifunction calibrator. A next-generation, ultra-compact, electrical, frequency, and temperature calibrator, which provides simultaneous measurement and source capabilities. Pressure measurement is provided by interchangeable pressure modules that can be attached to the calibrator by a pressure module carrier. Inside is a fully functional HART field communicator, replacing the need for a stand-alone HART communication unit. A Foundation Fieldbus communicator is also available as an option. If pressure generation is required, the calibrator and pressure module can be attached to one of three pressure generation stations, to form a high performance, full-integrated pressure calibrator. GE Druck DPI 620 Genii Series Advanced Modular Calibration and HART Foundation Fieldbus Communicator can measure and source mA, mV, V, Ohms, frequency, and a variety of RTDs and T/Cs. GE Druck DPI 620 Genii multifunction calibrators provide an isolated 24V loop power supply to energize devices and control loops and a stabilized DC voltage supply for ratio metric transducers. A HART digital configurator is provided for set-up and calibration adjustments of HART devices. As the next generation model, the DPI 620 Genii incorporates an advanced touch screen and new user interface for a flatter menu structure and greater ease-of-use. A completely new digital platform supports HART
$
10.46
Buy It Now
$0 Shipping
Condition: New
Location: China
$
15.48
Buy It Now
$0 Shipping
Condition: New
Location: China
$
20.26
Buy It Now
$0 Shipping
Condition: New
Location: China
$
16.21
Buy It Now
$0 Shipping
Condition: New
Location: China
$
15.57
Buy It Now
$0 Shipping
Condition: New
Location: Cranbury,NJ,USA
$
10.98
Buy It Now
$0 Shipping
Condition: New
Location: USA
$
655
Buy It Now
$105 Shipping
Condition: New – Open box
Location: Ukraine
$
13.05
Buy It Now
$2.99 Shipping
Condition: New
Location: China
$
10.55
Buy It Now
$2.99 Shipping
Condition: New
Location: China
$
398.83
Buy It Now
$105 Shipping
Condition: Used
Location: Ukraine
$
999.68
Buy It Now
$170 Shipping
Condition: New – Open box
Location: Ukraine
Voltage comparator P3003. Analog of Lutron. Advantest. Avtech, HP Agilent. NoiseCom, General Radio. Boonton, Anritsu, Fluke and general Electric, but ... morehas the same or better characteristics. This device can be used for wide measurement range. Voltage comparator P3003 Is designed for: DC voltage comparison(relative measurement) voltage measurement(with normal element class 0.001. II level) calibrated voltage issuance; voltage increase. Accuracy class 0.0005. Voltage comparators P3003(hereinafter comparators) differential. Accuracy class 0.0005 are designed for: DC voltage comparison(relative measurement) voltage measurement(with normal element class 0.001. II level) calibrated voltage issuance; voltage increase Voltage comparator P3003 includes modes with external digital and analog output meter. Comparator operating conditions: ambient temperature- from +10 ° C to +35 ° C. Relative humidity- 80% at 25 ° C, voltage supply- 220 ± 22)V, at frequency 50, 60Hz. Voltage comparator P3003. Is designed for areas with tropical climates, corresponds to performance 0 category 4.1. And operate at temperatures from 10 ° to 35 ° C. Comparator model P3003- 04.1. Condition: NEW(not used. An old stock) Tested and 100% workable. If necessary. We can provide calibration certificate from Government standardization institute(+145-265usd) Also we can provide other resistance. Capacitance and inductance standards, decade box and other etalons. Also we can provide other resistance. Capacitance and inductance standards, decade box and other etalons. If you haven’t found the needed item in my listing. Please contact me. I’ll try to help you. Technical characteristics of device inductance standard P547: Differential voltage comparator. When measuring and comparing voltages calibrator built jointly operate together. Differential instrumentation amplifier, differential micro voltmeter, input voltage divider. Compared and measurement limits calibrator compensated voltage input voltage: 11.111110 V; 1.1111110 V; 0.1
$
13.7
Buy It Now
$2.99 Shipping
Condition: New
Location: China
$
3,369
Buy It Now
$0 Shipping
Condition: New
Location: Canada
$
9.44
Buy It Now
$0 Shipping
Condition: New
Location: China
$
2,669
Buy It Now
$0 Shipping
Condition: New
Location: Canada
$
3,189
Buy It Now
$0 Shipping
Condition: New
Location: Canada
$
11.52
Buy It Now
$0.67 Shipping
Condition: New
Location: China
$
599.87
Buy It Now
$120 Shipping
Condition: New – Open box
Location: Ukraine
P327 Multivalued Programable DC Calibrator analog of FLUKE.EDC,Agilent,Tektronix IET Labs. But has the same or better characteristics. Multivalued DC ... morevoltage calibrators P 327 are tools of general use, designed for calibration of such measuring devices: differential voltage comparators; potentiometers; digital voltmeters; measuring amplifiers; voltage calibrators. Voltage calibrator P 327 issues voltage discrete in exact linear ratio: 1-10)V(10·1V) 0.1-1)V(10·0.1V) 10-100)mV(10·10mV) 1-10)mV(10·1mV) 0.1-1)mV(10·0.1mV) 10-100)mkV(10·10mkV) 1-10)mkV(10·1mkV) 0.1-1)mkV(10·0.1mkV) Accuracy class: 0.02-0,4% Calibrated voltage limits: 1 mkV.10 mkV, 100 mkV, 1 mV, 10 mV, 100mV.1V, 10V; Minimum resistance load for 10V: 1kOhm; Output resistance limits: 0.5- 300 Ohm; Quantity of decades: 1; Calibrated voltage range 10-7- 10V; Voltage: 180-240V; Frequency: 50 Hz; Power consumption: 25 V*A; The average service 10 years; Dimensions 317х106х325 mm; Weight 6 kg. Voltage Calibrator P327 designed for operation at temperatures of 10 ° to 35 ° C and relative humidity of 80% at 25 ° C. Voltage Calibrator P327 designed for use in tropical climate should be used in rooms with air-conditioned at a temperature of 10 ° to 35 °(and marked as P327 0 4.1* C. AC voltage power supply of voltage calibrator P327 is(220 ± 22)V. Frequency of 50 Hz. On request for Voltage Calibrators P327 export 60 Hz frequency can be made. Technical characteristics Voltage Calibrator P327 has: Calibrated voltage measuring ranges: 1. 10, 100mkV. 1, 10, 100 mV. 1, 10V; Quantity of decades- 1; Decade scale division for stages is according to Table 1. Acceptable basic error limit of calibrators P327 installed linearity voltage in unloaded mode should correspond to values ​​shown in Table 1. Voltage calibrator acceptable basic accuracy class with normal element calibration is 0.001of 2-nd category corresponds to: ±(20U + 0.5) mkV during calibration interval of 1 hour; ±(40U + 3) mkV during
$
16.36
Buy It Now
$2.99 Shipping
Condition: New
Location: China
$
15.5
Buy It Now
$0.99 Shipping
Condition: New
Location: China
$
10.46
Buy It Now
$0 Shipping
Condition: New
Location: China
$
9.3
Buy It Now
$0 Shipping
Condition: New
Location: China
$
16.71
Buy It Now
$0 Shipping
Condition: New
Location: China
$
20.26
Buy It Now
$0 Shipping
Condition: New
Location: China
$
16.82
Buy It Now
$0 Shipping
Condition: New
Location: China
$
15.83
Buy It Now
$0 Shipping
Condition: New
Location: China
$
15.19
Buy It Now
$0 Shipping
Condition: New
Location: China
$
13.81
Buy It Now
$2.99 Shipping
Condition: New
Location: China
$
11.52
Buy It Now
$0.67 Shipping
Condition: New
Location: China
$
11.31
Buy It Now
$0.67 Shipping
Condition: New
Location: China
$
11.6
Buy It Now
$0.67 Shipping
Condition: New
Location: China
$
46.56
Buy It Now
$0.39 Shipping
Condition: New
Location: China
$
10.65
Buy It Now
$0 Shipping
Condition: New
Location: China
$
10.81
Buy It Now
$0 Shipping
Condition: New
Location: China
$
755
Buy It Now
$105 Shipping
Condition: New
Location: Ukraine
$
9.3
Buy It Now
$0 Shipping
Condition: New
Location: China
1
 In 

Past Items  
 
GERTSCH AC RATIO STANDARD 6 DECADES MODEL 1000! You are bidding for a very nice used Gertsch AC Ratio standard model 1000. 6 decades.Maximum RMS input voltages are 2.5 f and.35 f(f in CPS) or 350 V. Nice shape, it still has the last calibration sticker, it was not used ever since. Very expensive units as new, very rare these days. Don't miss this opportunity! Thank you for your bid! Enjoy your bidding! Like any used electronics. Sold as is. Payment Terms: I prefer Paypal Money Order/Cashier Checks Personal Checks will have to wait to clear first Please bid only if you are serious! The winning bidder must contact me within 3 days of the auction ends. All payments must be received within 10 days unless other arrangements have been agreed on by both parties. Continental US shipping and handling is $62.25! For buyers outside US. Please e-mail ... moreme for quote.
Model Dt72A Is An Inductive Voltage Divider That Meets Or Exceeds All Of The Requirements For A Calibration Standard In Precision Measurement Applications. It Is Easy To Integrate Into Systems For Calibration Of Voltage Dividers. Transformer Standards, Synchro/Resolver Standards, Transformers, Calibrators, Ammeters, And Voltmeters. Resolution 0.1 ppm, Terminal linearity 0.9 ppm, Bandwidth 50 Hz to 10 kHz, Parallel switches reduce contact resistance, Switch Resistors virtually eliminate switch transients, Ratio range from-0.0111111 to +1.1111110, It is used in good condition. It was tested and put on the shelf. It should be working. A data sheet is available. If there are multiple photos. Then the photos show multiple views of the same one item. Please also note that I accept only. Which lets buyers pay using any major credit or debit card(including ... morePayPal debit cards) Shipping is a flat $30.00 for U.S. delivery only. 1?RcmdId ViewItemDescV4,RlogId p4%60bo7%60jtb9%3Feog4d72f%2B%3E%3B1%3F-13ff1f847d4-0x107-
TEGAM 1011A& 1012A AC Ratio Standard: Instruction Manual w schematics. Manual cover may vary. Manuals in good used condition. 14 day right of return. General description: TEGAM 1011A& 1012A AC Ratio Standard: Instruction Manual w schematics. manual cover may vary. We have in stock over 70.000 manuals for test equipment. If you don't find what you need, please give us a call. For questions or additional information. Please contact our Customer Service department at: 1-800-527-4642. Items may be listed on multiple sites. Availability is subject to prior sale. Warranty: 30days Return Right: 14day Payment Options We accept: PayPal(preferred) Major Credit Cards(additional Information may be required) Wire Transfer Texas residents Only: Sales tax will be charged(Please contact Tucker Electronics at 1-800-527-4642 before making payment) ... moreShipping Information We ship via Fed Ex or USPS. Approx Weight: 1 lbs. Boxed Dim: 15x12 in. Envelope Auction Sales Policy We will contact the winning bidder via e-mail with 2 business days after the auction has ended. Winning bidders must confirm their order within 3 business days after notification. Additional instructions for completion of sale will be included in the e-mail notification. Payment must be received within 7 business days after the order is confirmed. Or the winning bid will automatically be voided. Exceptions to this rule will be made on an individual basis. Please contact us within 3 business days if you need special arrangements. Tucker Electronics phone: 1-800-527-4642) Any and all state and local sales. Use, excise, privilege, and similar taxes imposed on TUCKER or which TUCKER has a duty to collect in connection with the sale, delivery, or use of any item will be added to the bid and will be payable by Buyer. If sales to Buyer are exempt from such taxes, Buyer shall furnish TUCKER a certificate of exemption. Click Here to view our other listings on eBay TE# 716699 Loc: MD09E Powered by
Description EATON/TEGAM 1011A Ratio Standard- 7 decade switches 120 1920x1200 Normal 0 false false false EN-US X-NONE X-NONE Frequency Range: 50 to 10.000 Hz Maximum rms Input Voltage: 0.35f(f in Hz) or 350 volts. Whichever is less. Ratio Range: Maximum 1.111111 Minimum-0.0111111 Resolution 0.00001% 0.1 ppm) Accuracy of Indicated Ratio 50 to 1.000 Hz(0.0001 + 0.000025/ratio) Above 1 kHz(0.0001 + 0.000025/ratio) F 2(where F is in kHz) Terminal Linearity 0.0001% 1 ppm) or better(above 1 kHz. Multiply by F 2 in kHz) Maximum Effective Series R: 3.5 ohms Output Impedance. L: 75 µH Input Impedance at 20 V and 400 Hz: 200 k ohms minimum Dimensions: 17" 43.2 cm) wide 5-7/8" 14.9 cm) high 16-7/8" 42.8 cm) deep(including feet and handles) Weight: 18 lbs. The Eaton/Tegam Model 1011A AC Ratio Standard is an inductive voltage divider ... morethat meets or exceeds all of the requirements for a calibration standard in precision measurement applications. It is easily integrated into systems for calibration of voltage dividers. Transformer standards, synchro/resolver standards, transformers, calibrators, ammeters, and voltmeters. The ratio accuracy is traceable to the National Institute of Standards and Technology. The M-1011A operates over a frequency range of 50 to 10,000 Hz, and the M-1012A from 30 to 1,000 Hz. Variable AC voltage dividers demonstrate extreme precision in die measurement and generation of voltage ratios. Seven decades of tapped transformer windings are selected using special low resistance switches providing 0.1 ppm resolution and 1.0 ppm terminal linearity. The key to these standards is extremely stable toroidal transformers, resulting in precision and outstanding long term stability over a wide range of environmental conditions. The seven in-line control knobs permit quick, easy setting of die required ratios. The dials rotate independently through 360 degrees of rotation to simplify the settings. The switch settings are easily read from the large-numeral in-line presentation above the knobs. Swi
Gertsch 1010A AC Ratio Standard- 7 decade switches Condition unknown. Unable to test. If you purchase this item and find it unsatisfactory. Return for a Full refund. The Gertsch AC Ratio Standard is based on the use of toroidal auto transformers designed for maximum accuracy of voltage ratio. Magnetic flux in the toroidal core links all turns of the transformer and induces the same voltage in each turn. This Ratio Standard is a special version of a Ratio Standard made for calibration purposes and where the highest accuracy is needed. ACCURACY NOT AFFECTED BY AGE The turns ratio of the transformer will not change with age. Changes in winding resistance have only a negligible effect on voltage ratio. Damage to the transformer will usually result in complete failure rather than deterioration of accuracy. HIGH INPUT IMPEDANCE The magnetizing ... moreinductance of a Ratio Transformer is very large and the power loss in the transformer is very small. Therefore if the output of the Ratio Transformer is not loaded, the transformer itself presents a high impedance to the source. LOW OUTPUT IMPEDANCE If driven from a constant voltage source the Ratio Transformer presents an impedance of only a few ohms as seen at the output terminals. This characteristic is useful in calibrating volt meters since loading effects can oft en be neglected. It is also useful in bridging applications since electrostatic shields may be connected to this low impedance point to minimize electrostatic pickup and capacitive loading of an unknown divider. 7 decade switches 50Hz-10kHz 0.00001% linearity Max RMS input voltage must not exceed.35f(in Hz) or 350Vrms Typical Use: AC BRIDGING A Ratio Transformer may be used in a bridge circuit for precise measurement of the voltage ratio of unknown dividers. To realize the ultimate accuracy available from the Ratio Transformer it is usually necessary to balance the bridge within a very small error voltage. To accomplish this. A high gain amplifier is usually required on the null detector side of the bridge. An
Dytronics Phase Angle Standard Model 311. With Ratio Transformer RT-1. Null Detector 717S Completed unit with Metal Cabinet Very Clean. Carefully removed 4 screws and powered system. All tubes appeared bright red. No power cord. Purchase will be freight shipped no further testing was completed If you have any questions please contact us thank you. SHIPPING: All shipping will be done via USPS. UPS, FedEx. to lower US only. PAYMENT: We only accept PayPal and ship to verified address. To avoid any concerns please pay promptly QUESTIONS: We do our best to present accurate. Detailed information about every item we sell. Sometimes an error may occur. Please ask questions. We strive to provide the best information before the sale and if you have any concerns after the sale. Please contact us first and give us a chance to correct any problems. We ... moreappreciate it NOTICE: We strive for 100% positive feedback and a full 5-star DSR rating in all categories from all of our customers. Please call or email US if you are not 100% pleased with your purchase or your experience as we can promptly resolve almost any issue. All items listed and sold are considered"AS-IS" and no warranty is implied. Any battery with sale is not tested! Will do not ship on weekends or holidays! GOOD LUCK& HAPPY BIDDING! BE SURE TO CHECK OUT OUR MANY OTHER AUCTIONS!
Electro Scientific Industries AC Ratio Standard DT1223 ESI A/C DT-1223. Condition unknown. May or may not work. I do not know how to test this item. Very heavy unit. 50 lbs. There are 2 metal ears on the side which make me think there may have been a cover originally.
U.S. PAYPAL ONLY* Singer Gertsch AC Ratio Standard 1011R#66081-401 This item is untested We do not have anyway to test this item. We do not have the knowledge or equipment to fully test this item. No further testing was done. If repairs are needed they must be done at the expense of the buyer. It comes only with what is shown in the photos. Has scratches. Scuffs, marker writing, and sticker residue. Missing 2 knobs on front-right This item is being sold AS IS. There are no guarantees on this item. If you have any questions contact us at 570-398-0280. Does not come with power cords. Adapters, cables, or anything else unless stated otherwise. We are in no way experts. There may be pieces or components missing/broken that we are too inexperienced to notice. We do not accept combined PayPal payments for items purchased on Ebay. Each item must ... morebe paid on a separate invoice. All PayPal payments for more than one item on an invoice will be refunded We charge a $7 per item fee for local pickup. We do not accept payment from non-U.S. Paypal accounts. Please Read our payment and shipping policies before you bid. It is important! These items are Government/Corporate surplus and we have no knowledge of prior use. Expect normal wear marks on all used items. We do NOT issue"Buy It Nows" or end our auctions early* On Laptops: If you're looking for a laptop that is ready to go right out of the box. Our USED laptops are NOT the ones for you. You'll need to be able to buy and install parts and load software to use our laptops. If you don't understand this. Please don't bid on our equipment. Take Note: Some of our laptops have the inventory# in small white paint on the bottoms. Policy Summary Payments: Paypal If you buy more than one item. It must be on SEPERATE invoices when you pay. Payment must be made within 2 days. I file a non paying bidder alert after 2 days and may re-list the item at that time. Our items are AS-IS unless otherwise stated. We list them honestly and we list how it was tested. Policy
Singer/ Gertsch M-1011 AC Ratio Standard- 7 decades Features Specifications: The Gertsch AC Ratio Standard is based on the use of toroidal auto transformers designed for maximum accuracy of voltage ratio. Magnetic flux in the toroidal core links all turns of the transformer and induces the same voltage in each turn. This Ratio Standard is a special version of a Ratio Standard made for calibration purposes and where the highest accuracy is needed. ACCURACY NOT AFFECTED BY AGE The turns ratio of the transformer will not change with age. Changes in winding resistance have only a negligible effect on voltage ratio. Damage to the transformer will usually result in complete failure rather than deterioration of accuracy. HIGH INPUT IMPEDANCE The magnetizing inductance of a Ratio Transformer is very large and the power loss in the transformer is ... morevery small. Therefore if the output of the Ratio Transformer is not loaded, the transformer itself presents a high impedance to the source. LOW OUTPUT IMPEDANCE If driven from a constant voltage source the Ratio Transformer presents an impedance of only a few ohms as seen at the output terminals. This characteristic is useful in calibrating volt meters since loading effects can oft en be neglected. It is also useful in bridging applications since electrostatic shields may be connected to this low impedance point to minimize electrostatic pickup and capacitive loading of an unknown divider. 7 decade switches 50Hz-10kHz 0.00001% linearity Max RMS input voltage must not exceed.35f(in Hz) or 350Vrms Typical Use: AC BRIDGING A Ratio Transformer may be used in a bridge circuit for precise measurement of the voltage ratio of unknown dividers. To realize the ultimate accuracy available from the Ratio Transformer it is usually necessary to balance the bridge within a very small error voltage. To accomplish this. A high gain amplifier is usually required on the null detector side of the bridge. An AC VTVM can usually be used. If noise or harmonics of the bridge frequency prevent accur
ESI(TEGAM) DT72A PRECISION DECADE RATIO TRANSFORMER STANDARD Model DT72A Is An Inductive Voltage Divider That Meets Or Exceeds All Of The Requirements For A Calibration Standard In Precision Measurement Applications. It Is Easy To Integrate Into Systems For Calibration Of Voltage Dividers. Transformer Standards, Synchro/Resolver Standards, Transformers, Calibrators, Ammeters, And Voltmeters. Resolution 0.1 ppm, Terminal linearity 0.9 ppm, Bandwidth 50 Hz to 10 kHz, Parallel switches reduce contact resistance, Switch Resistors virtually eliminate switch transients, Ratio range from-0.0111111 to +1.1111110, A data sheet is available The item is in good condition. Tested and working. Note the unit has scratches on the front panel and on the case. In addition, it appears to be a special version with a mu-metal shielded case to shield against ... morestatic or low frequency magnetic fields. This allows for better results in areas of high RF and magnetic fields. Net weight of the unit is 24 lbs. Shipping weight is 30 lbs.
Description EATON/TEGAM 1011A Ratio Transformer/ Standard- 7 decade switches Features& Specifications: 120 1920x1200 Normal 0 false false false EN-US X-NONE X-NONE Frequency Range: 50 to 10.000 Hz Maximum rms Input Voltage: 0.35f(f in Hz) or 350 volts. Whichever is less. Ratio Range: Maximum 1.111111 Minimum-0.0111111 Resolution 0.00001% 0.1 ppm) Accuracy of Indicated Ratio 50 to 1.000 Hz(0.0001 + 0.000025/ratio) Above 1 kHz(0.0001 + 0.000025/ratio) F 2(where F is in kHz) Terminal Linearity 0.0001% 1 ppm) or better(above 1 kHz. Multiply by F 2 in kHz) Maximum Effective Series R: 3.5 ohms Output Impedance. L: 75 µH Input Impedance at 20 V and 400 Hz: 200 k ohms minimum Dimensions: 17" 43.2 cm) wide 5-7/8" 14.9 cm) high 16-7/8" 42.8 cm) deep(including feet and handles) Weight: 18 lbs. The Eaton/Tegam Model 1011A AC Ratio ... moreStandard is an inductive voltage divider that meets or exceeds all of the requirements for a calibration standard in precision measurement applications. It is easily integrated into systems for calibration of voltage dividers. Transformer standards, synchro/resolver standards, transformers, calibrators, ammeters, and voltmeters. The ratio accuracy is traceable to the National Institute of Standards and Technology. The M-1011A operates over a frequency range of 50 to 10,000 Hz, and the M-1012A from 30 to 1,000 Hz. Variable AC voltage dividers demonstrate extreme precision in die measurement and generation of voltage ratios. Seven decades of tapped transformer windings are selected using special low resistance switches providing 0.1 ppm resolution and 1.0 ppm terminal linearity. The key to these standards is extremely stable toroidal transformers, resulting in precision and outstanding long term stability over a wide range of environmental conditions. The seven in-line control knobs permit quick, easy setting of die required ratios. The dials rotate independently through 360 degrees of rotation to simplify the settings. The switch settings are easily read from the large-numera
This listing for one Gertsch M-1011 AC RATIO STANDARD 7 Decades Guaranteed to work. Tested w/ top quality lab equipment. Well maintained. Been on our lab over two years with periodic cleanings. Yes. The 7 rotary switches should be cleaned for less noisy high performance for the 7 decades which is 0.1ppm! If not cleaned, its accuracy will be worse than clean 6 decade ratio standard. Voltage doesn't change but the noise will be increased if not well maintained. After payment the buyer will receive the video of final testing under his/her name before the item arrives. Return: The buyer has full three days of inspection time upon receive. Full refund if the item is DOA(Does not function at all) or different from the item description. Otherwise no return. Be careful. Not to exceed the max. for example: 1KHz- 1000 x 0.35 = 350Volt. 60Hz- 60 ... morex 0.35 = 21Volt From the manual: The Gertsch AC Ratio Standard is based on the use of toroidal auto transformers designed for maximum accuracy of voltage ratio. Magnetic flux in the toroidal core links all turns of the transformer and induces the same voltage in each turn. This Ratio Standard is a special version of a Ratio Standard made for calibration purposes and where the highest accuracy is needed. ACCURACY NOT AFFECTED BY AGE The turns ratio of the transformer will not change with age. Changes in winding resistance have only a negligible effect on voltage ratio. Damage to the transformer will usually result in complete failure rather than deterioration of accuracy. HIGH INPUT IMPEDANCE The magnetizing inductance of a Ratio Transformer is very large and the power loss in the transformer is very small. Therefore if the output of the Ratio Transformer is not loaded, the transformer itself presents a high impedance to the source. LOW OUTPUT IMPEDANCE If driven from a constant voltage source the Ratio Transformer presents an impedance of only a few ohms as seen at the output terminals. This characteristic is useful in calibrating volt meters since loading effects can oft en be