Fluke 742A-1 1 Ohm 4-Terminal Resistance Calibration Standard

Description

Fluke 724A-1 1 Ohm 4-Terminal Resistance Standard
Comes with what you see in the pictures. If you don't see it, you probably won't get it.
Specifications are from Fluke and may vary slightly due to upgrades, options, or revisions this unit may or may not have.
This unit will ship fully tested and guaranteed to work for 30-days, parts and labor, excluding freight and mis-use.
The Unit's Serial Number Tag Reads:
Serial Number:
6330027
Applications:
Working standards
Portable transfer standards
Supports Artifact Calibration of the Fluke 5700A and 5720A Calibrators
Features:
Small and rugged
No oil or air baths required
18°C to 28°C operating range
Six month stability to 2.5 ppm
Description:
742A Resistance Standards are high accuracy working standards for precision, on-site resistance calibration. Their excellent temperature stability allows them to be used from 18°C to 28°C with typically less than 2 ppm degradation. Using the calibration table supplied with the standards, which lists corrections in 0.5°C increments, this uncertainty can be reduced to near zero. No cumbersome oil or air baths are required.
Because 742A Resistance Standards are small and rugged, they are easy to transport. Care has been taken to reduce resistance changes brought about by thermal and mechanical shock. Retrace (permanent shift in resistance) is typically less than 2 ppm after cycling between 0°C and 40°C.
The 742A-1 1 Ω and the 742A-10k 10 kΩ units are ideally suited for Artifact Calibration of 5700A/5720A Calibrators. The other values can be used to verify the calibration if you desire.
Specifications:
Nominal Value:
1 Ω
Deviation from Nominal:
17 ppm
Stability:
6 Month:
5.0 ppm
12 Month:
8.0 ppm
Calibration Uncertainty (23°C):
1.0 ppm
Max Change (18-28°C):
±3.0 ppm
Max Voltage:
0.5 V
Operating Temperature Range:
18°C to 28°C
Storage Temperature Range:
0°C to 40°C
Retrace Error (Hysteresis):
23°C to 18°C to 23°C Cycle:
Negligible resistance shift
23°C to 28°C to 23°C Cycle:
Negligible resistance shift
23°C to 0°C to 23°C Cycle:
< 2 ppm resistance shift
23°C to 40°C to 23°C Cycle:
< 2 ppm resistance shift
Size:
3.4" H x 4.15" W x 5" D (8.6 cm x 10.5 cm x 12.7 cm)
Weight:
Approx. 1.5 lbs.
For Domestic Customers: Packaging, handling, and order processing included in shipping in all domestic shipments as quoted by the shipping calculator. For International Customers there is a .00 minimum for packaging, handling, and order processing. International shipping to be determined by destination.
Prior to shipment I will need to know the following information (filled out on a form that I will send you) for International Customers or Packages/Freight being Forwarded internationally. International customers may also be subject to a freight forwarder form if applicable.:
(1) Are you the end-user of this item?
(2) If you are not the ultimate end-user of the item, please state the ultimate end user's name.
(3) What is the ultimate country destination?
06/02/21