- 宽范围的值 - 1mΩ至10TΩ
- 非常稳定 - 高达10 ppm /年
- 包括ISO-17025认证校准
- 包括3年保修
- 优异的TC - 低至1 ppm /°C
- 任何自定义电阻值
- 校准DMM,微欧姆计和兆欧表的电阻标准的最佳选择
- 可在单个外壳中组合多个电阻器
SRX和SRC系列具有成本效益,稳定,实验室或便携式电阻标准。它们的坚固性和小尺寸加上它们的低温度系数使SRX和串联电阻标准适用于18°C至28°C温度范围内的实验室环境以外的任何应用。由于温度系数低,它们不需要油或温浴。接线柱由低热电动势材料构成。四个5路接线柱用于190kΩ及以下的电阻值;两个接线柱和Kel-F垫圈用于1MΩ及以上。
对于较低的电阻,SRX系列电阻标准的值范围为1mΩ至100MΩ,可提供定制值。
对于更高的电阻,SRC系列电阻标准的值范围为190MΩ至10TΩ,可提供定制值。
可以无限期地保持SRX和SRC阻力标准。由于其封闭,坚固的设计和密封电阻,它们是可靠的。由于其金属外壳,这些装置可抵抗电磁干扰(EMI)。
SRX/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 | 100 | 50 | |
SRC-1.9G | 1.9 GΩ | 0.50% | 100 | 500 | 50 | |
SRC-10G | 10 GΩ | 0.50% | 200 | 50 | ||
SRC-19G | 19 GΩ | 0.50% | 500 | 50 | ||
SRC-100G | 100 GΩ | 0.50% | 900 | 50 | ||
SRC-190G | 190 GΩ | 1% | 900 | 50 | ||
SRC-1T | 1 T | 2% | 2500 | 100 | ||
SRC-1.9T | 1.9 T | 2% | 2500 | 1000 | 200 |
SRC-TN T-Network High Resistance Standard Basic Specifications
Model | Nominal Value (Ω) | Adjustment to Nominal (ppm) | Calibration Uncertainty (ppm) | Stability 1 year (ppm) | Tempco (ppm/°C) | Voltage Coef.(ppm/V) |
SRC-10T-TN | 10 TΩ | 1% | 750 | 500 | 25 | 1 |
SRC-20T-TN | 20 TΩ | |||||
SRC-50T-TN | 50 TΩ | |||||
SRC-100T -TN | 100 T |
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:All SRX and SRC except -TN: 8.6 cm H x 10.5 cm W x 12.7 cm D (3.4" x 4.15" x 5")
SRC-TN series: 9.0 cm H x 11.5 cm W x 5.5 cm D (3.5" x 4.5" x 2.2")
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.