IETLAB SR1 校准电阻（50 ppm;0.01Ω~10MΩ） | EMIN.VN

IETLAB SR1 校准电阻（50 ppm;0.01Ω~10MΩ）

Name: IETLAB SR1 校准电阻（50 ppm;0.01Ω~10MΩ）
Brand: IET LABS

有库存: 0 个

制造商IET LABS

ModelSR1 Series

原产地USA

保修保修：12 个月

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(Full specifications can be found on datasheet)

New Design, With Improved Specifications
Versatile working Calibration Resistor
Laboratory standard of high accuracy and stability
Adjusted to within 20 ppm of nominal
50 ppm long-term accuracy for most values

datasheet

NEW DESIGN, IMPROVED SPECIFICATIONS

For a wider range of resistance values with similar performance at the same price consider our SRX Series

The Model SR1 Calibration Resistors is a laboratory standard of high accuracy and stability. The resistance of most values is initially adjusted to an accuracy of 20 ppm of nominal, with long-term accuracy guaranteed to better than 50 ppm. Other values have initial accuracy from 50 ppm to 200 ppm.

Model SR1 Calibration Resistor has been constructed to meet today’s high standards of performance. The resistance wire used is a modern alloy with excellent stability, an extremely low temperature coefficient over a wide range of temperatures, and very low thermal EMF to copper. A unifilar winding on a flat mica card is used to minimize both series inductance and shunt capacitance. The durable aluminum case provides electrostatic shielding. Gold plated terminals reduce connection errors.

Terminals appear on the top of each unit. They are also brought out the bottom of the case on removable banana plugs. This allows plugging two or more units together in either series or parallel for a wide variety of resistance values. Four-terminal resistance measurements are easily made by using the banana plugs on the bottom of the case as two of the terminals. 0.01 Ω and 0.1 Ω values have four terminals on the top and should only be used in four-wire configurations. For three-terminal or five-terminal guarded measurements, a binding post on top and a banana plug on the bottom provide connections to the case.

SPECIFICATIONS

Nominal Value	Model Number	Adjustment to nominal	Stability per year	Calibration Uncertainty	Temperature coefficient	Power coefficient	Max power	Max current	Max voltage	Terminals
0.01 Ω	SR1-0.01	200 ppm	100 ppm	50 ppm	20 ppm/°C	0.1 ppm/mW	2 W	14 A	0.15 V	4 bp's + gnd
0.1 Ω	SR1-0.1	200 ppm	20 ppm	50 ppm	20 ppm/°C	0.1 ppm/mW	1 W	3.0 A	0.3 V	4 bp's + gnd
1 Ω	SR1-1	20 ppm	10 ppm	20 ppm	10 ppm/°C	0.5 ppm/mW	0.25 W	0.5 A	0.5 V	4 bp's + gnd
10 Ω	SR1-10	10 ppm	5 ppm	10 ppm	3 ppm/°C	0.15 ppm/mW	0.1 W	0.1 A	1 V	4 bp's + gnd
100 Ω	SR1-100	10 ppm	5 ppm	10 ppm	1 ppm/°C	0.05 ppm/mW	0.1 W	30 mA	3 V	4 bp's + gnd
1 kΩ	SR1-1k	10 ppm	2 ppm	10 ppm	1 ppm/°C	0.05 ppm/mW	0.1 W	10 mA	10 V	4 bp's + gnd
10 kΩ	SR1-10k	10 ppm	2 ppm	10 ppm	1 ppm/°C	0.05 ppm/mW	0.1 W	3 mA	30 V	4 bp's + gnd
100 kΩ	SR1-100k	10 ppm	2 ppm	10 ppm	1 ppm/°C	0.05 ppm/mW	0.1 W	1 mA	100 V	4 bp's + gnd
1 MΩ	SR1-1M	20 ppm	5 ppm	15 ppm	3 ppm/°C	0.15 ppm/mW	0.1 W	0.3 mA	316 V	2 bp's + gnd
10 MΩ	SR1-10M	20 ppm	10 ppm	20 ppm	5 ppm/°C	0.25 ppm/mW	0.1 W	0.1 mA	2000 V	2 bp's + gnd