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IETLAB SRX / SRC 系列经济电阻标准( - 1mΩtới10TΩ)

(Full specifications can be found on datasheet)

Wide range of values - 1 mΩ to 10 TΩ
Very stable - up to 10 ppm/yr
ISO-17025 Accredited Calibration Included
3 Year Warranty Included
Excellent TC - as low as 1 ppm/°C
Excellent choice for a resistance standard to calibrate DMM's, Micro-Ohmmeters and Megohmmeters
In addition to the standard values, any custom value is available.  Please contact the IET sales department, for more information
Combination of multiple resistors in a single housing is available

Details

datasheet

manual

SRC High Resistance Standard Basic Specifications

Model  Nominal Value (Ω)  Adjustment to Nominal (ppm) Calibration Uncertainty (ppm)  Stability 1 year (ppm) Tempco (ppm/°C) Power Coef.(ppm/mW)
SRX-0.001 0.001 Ω 200 200 50 20 0.1
SRX-0.0019 0.0019 Ω 200 200 50 20 0.1
SRX-0.002 0.002 Ω 200 200 50 20 0.1
SRX-0.01 0.01 Ω 200 100 50 20 0.1
SRX-0.019 0.019 Ω 200 100 50 20 0.1
SRX-0.1 0.1 Ω 200 20 50 20 0.1
SRX-0.19 0.19 Ω 200 20 50 20 0.1
SRX-1 1 Ω 20 10 20 10 0.5
SRX-1.9 1.9 Ω 20 10 20 10 0.5
SRX-10 10 Ω 10 5 10 3 0.15
SRX-19 19 Ω 10 5 10 3 0.15
SRX-50 50 Ω 10 5 10 1 0.05
SRX-100 100 Ω 10 5 10 1 0.05
SRX-190 190 Ω 10 5 10 1 0.05
SRX-1K  1 kΩΩ  10 2 10 1 0.05
SRX-1.9K  1.9 kΩ  10 2 10 1 0.05
SRX-10K  10 kΩ  10 2 10 1 0.05
SRX-19K  19 kΩ  10 2 10 1 0.05
SRX-100K  100 kΩ  10 2 10 1 0.05
SRX-190K  190 kΩ  10 2 10 1 0.05
SRX-1M  1 MΩ  20 5 15 3 0.15
SRX-1.9M  1.9 MΩ  20 5 15 3 0.15
SRX-10M  10 MΩ  20 10 20 5 0.25
SRX-19M  19 MΩ  20 10 20 5 0.7
SRX-100M  100 MΩ  50 15 20 5 1.2
SRC-190M   190 MΩ 0.10% 30 500 25  
SRC-1G  1 GΩ   0.50% 100 500 50  
SRC-1.9G  1.9 GΩ   0.50% 100 500 50  
SRC-10G  10 GΩ   0.50% 200 500 50  
SRC-19G  19 GΩ   0.50% 500 500 50  
SRC-100G  100 GΩ   0.50% 900 500 50  
SRC-190G  190 GΩ   1% 900 500 50  
SRC-1T  1 T   2% 2500 500 100  
SRC-1.9T  1.9 T   2% 2500 1000 200  


SRC Series Maximum Voltage: 5000 V.
Test Conditions: Four-terminal Kelvin measurements, low power, at 23°C; two-terminal for 1 MΩ and over. Initial calibration data traceable to NIST is provided.
Terminals: SRX: Four 5-way binding posts for 4-terminal measurement for 190 kΩ and under; two binding posts for 1 MΩ and over. The binding posts are constructed of tellurium copper for low thermal emf and low resistance. A case ground terminal is also provided. Triax and bnc terminals are also available.
SRC: Additional GUARD terminal is provided.
Dimensions: 8.6 cm H x 10.5 cm W x 12.7 cm D (3.4" x 4.15" x 5").
Transit Case: Optional Model SRC-100 light weight transit case with handle, suitable for transporting and storing two units. The case provides mechanical protection and insulation from temperature changes during transportation or shipping.
Operating Temperature Range: 15 to 30°C. 

The SRX and SRC Series are cost effective, stable, laboratory or portable resistance standards. Their ruggedness and small size plus their low temperature coefficient makes the SRX and Series Resistance Standard ideal for any applications outside of laboratory environment within the tem­perature range of 18°C to 28°C. Because of the low temperature coefficient, they require no oil-or-temperature bath. The binding posts are constructed of low-thermal emf material. Four 5-way binding posts are used for resistance values of 190 kΩ and under; two binding posts and Kel-F washers are used for 1 MΩ and over.

For lower resistances, the SRX series resistance standards are available in values ranging from 1 mΩ to 100 MΩ, with custom values available.

For higher resistances, the SRC series resistance standards are available in values ranging from 190 MΩ to 10 TΩ, with custom values available.

It is possible to maintain the SRX & SRC resistance standards indefinitely. They are reliable due to their closed, rugged design and sealed resistors. The units are resistant to electro­magnetic interference (EMI) because of their metal enclosure.

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SRX/SRC Series Economical Resistance Standard

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