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TEGAM M-1011A AC Ratio Standard – Seven-Decade Inductive Voltage Divider – Basic Tested

Bring precision transformer-ratio engineering to your laboratory bench! The TEGAM M-1011A AC Ratio Standard combines seven decades of ratio adjustment with an inductive voltage-divider design built for demanding AC comparison and calibration applications. With published 0.1 ppm ratio resolution and coverage from 50 Hz to 10 kHz, this professional instrument offers an impressive blend of fine control and laboratory versatility. This example features front and rear terminals, includes four feet, and presents in very good overall cosmetic condition. An appealing addition for metrology enthusiasts, calibration laboratories, and collectors of precision test equipment.

High-Level Specifications

Manufacturer: TEGAM
Model: M-1011A AC Ratio Standard
Type: Precision inductive voltage divider / ratio transformer
Frequency range: 50 Hz to 10 kHz
Ratio adjustment: Seven decades
Ratio range: -0.0111111 to +1.1111110
Ratio resolution: 0.1 ppm
Published terminal linearity: ±1.0 ppm from 50 Hz to 1 kHz, under specified conditions
Maximum input voltage: 0.35 times frequency in Hz, or 350 V RMS, whichever is lower
Published input impedance: Greater than 200 kΩ at 20 V and 400 Hz
This unit includes front and rear terminals
Suitable model applications include precision AC voltage-ratio comparisons and calibration of voltage dividers and transformer standards

Specifications describe published model capabilities only. They do not establish the present accuracy, linearity, calibration, insulation condition, or performance of this individual instrument. This is a voltage divider, not a signal source; operation requires an externally applied AC input.

Condition / Testing

Basic testing completed.
Appears to function as designed during the limited testing performed.
Includes front and rear terminals.
No certificate of calibration is included.
Used condition with normal marks, scuffs, and scratches from laboratory use.
Very good cosmetic condition overall. Please see photos for the actual appearance and condition.
Includes four feet.

Basic testing does not constitute a complete performance verification or calibration. Performance across all ratio settings, frequencies, and input voltages has not been established by the testing described. Calibration status is unknown, and this instrument is not represented as currently calibrated or certified.

Included / Not Included

TEGAM M-1011A AC Ratio Standard with four feet.
No accessories, no cables, no probes, and no manuals are included.
No certificate of calibration is included.

Sale Terms

Sold AS-IS; no warranty or returns. No guarantee of calibration, ratio accuracy, linearity, or performance beyond the limited observations described above is provided. Please review the complete description and all photos carefully before purchasing.

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Terms

Reservation of Rights. All rights not expressly granted hereunder or stated in work proposals are reserved to the Seller, including but not limited to all rights in sketches, comps, computer files or other preliminary materials.
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Limitation of Remedies. In no way shall the Seller be liable for any damages beyond the scope of the Item purchased, consequential or other wise. The Seller and its suppliers’ entire liability and the Buyer's exclusive remedy shall be, at the Seller’s option to repair or replace the Item purchased.
No Liability for Consequential Damages. To the maximum extent permitted by applicable law, in no event shall the Seller or its suppliers be liable for any special, incidental, indirect, or consequential damages whatsoever (including, without limitation, damages for loss of profits, business interruption, or any other pecuniary loss) arising out of the use of or inability to use the Item purchased.
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Arbitration. All disputes arising under this Agreement shall be submitted to binding arbitration before an arbitrator in Will County Illinois and settled in accordance with the rules of the American Arbitration Association. Judgment upon the arbitration award may be entered in any court having jurisdiction thereof. Disputes in which the amount at issue is less than $2,500.00 shall not be subject to this arbitration provision.
Miscellany. This Agreement shall be binding upon the parties hereto, their heirs, successors, assigns, and personal representatives. This Agreement constitutes the entire understanding between the parties. Its terms can be modified only by an instrument in writing signed by both parties. This Agreement shall be governed by the laws of the State of Illinois.
Authorized Agent. Both Buyer and Seller hereby represent and warrant that they have been and are on the date of this agreement duly authorized by all necessary and appropriate action to execute and deliver this Agreement on behalf of themselves or their respective principal.
Changes To Terms and Conditions. We reserve the right to revise our policies at any time without notice.

Brand	Tegam
MPN	M-1011A
Country of Origin	United States

A2 - Tegam M-1011A AC Ratio Standard, Tested and Working

Specifications