- Rất ổn định - tối đa 2 ppm / năm
- Nhiều giá trị - 1 mΩ đến 10 TΩ,
- Được sử dụng bởi các Viện đo lường quốc gia trên toàn thế giới
- 3 năm bảo hành bao gồm
- TC tuyệt vời - thấp tới 0,4 ppm / ° C
- Very stable - up to 2 ppm/yr
- Wide range of values - 1 mΩ to 10 TΩ, In addition to the standard values, any custom value is available. Please contact the IET sales department, for more information
- Used by National Measurment Institutes across the world
- 3 Year Warranty Included
- Excellent TC - as low as 0.4 ppm/°C - No need for stabilization in a temperature-controlled bath
- Calibration report at 3 temperatures- Temperature chart with alpha and beta provided
- Combination of multiple resistors in a single housing and direct plug-in unit for most DMM's Fluke , Wavetek, Agilent, is available
For most resistance values, the SRL series are highest performance resisatance standards available from IET Labs. With a very low temperature coefficient these highest stability sealed resistance make an ideal standard for precision applications inside or outsiide of laboratory environment. Because of the low temperature coefficient, they require no oil-or-temperature bath.
It is possible to maintain SRL 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.
SRL RESISTANCE STANDARDS BASIC SPECIFICATIONS
Nominal Value | Model Number | Adjustment to Nominal | Calibration Uncertainty | Typical Stability per year | Max Resistance Change 18-28°C from 23 °C |
1 mΩ | SRL-0.001 | ±50 ppm | ±8 ppm | ±50 ppm | 20 ppm/°C |
1.9 mΩ | SRL-0.0019 | ±50 ppm | ±8 ppm | ±50 ppm | 20 ppm/°C |
2 mΩ | SRL-0.002 | ±50 ppm | ±8 ppm | ±50 ppm | 20 ppm/°C |
10 mΩ | SRL-0.01 | ±5 ppm | ±6 ppm | ±4 ppm | 5 ppm/°C |
19 mΩ | SRL-0.019 | ±5 ppm | ±6 ppm | ±4 ppm | 5 ppm/°C |
20 mΩ | SRL-0.02 | ±5 ppm | ±6 ppm | ±4 ppm | 5 ppm/°C |
100 mΩ | SRL-0.1 | ±5 ppm | ±2 ppm | ±4 ppm | 2 ppm/°C |
190 mΩ | SRL-0.19 | ±5 ppm | ±2 ppm | ±4 ppm | 2 ppm/°C |
200 mΩ | SRL-0.19 | ±5 ppm | ±2 ppm | ±4 ppm | 2 ppm/°C |
1 Ω | SRL-1 | ±2 ppm | ±1 ppm | ±2 ppm | 3 ppm tot |
1.9 Ω | SRL-1.9 | ±2 ppm | ±1 ppm | ±2 ppm | 3 ppm tot |
2 Ω | SRL-1.9 | ±2 ppm | ±1 ppm | ±2 ppm | 3 ppm tot |
10 Ω | SRL-10 | ±2 ppm | ±1 ppm | ±2 ppm | 3 ppm tot |
19 Ω | SRL-19 | ±2 ppm | ±1 ppm | ±2 ppm | 3 ppm tot |
20 Ω | SRL-19 | ±2 ppm | ±1 ppm | ±2 ppm | 3 ppm tot |
25 Ω | SRL-25 | ±2 ppm | ±1 ppm | ±2 ppm | 3 ppm tot |
30 Ω | SRL-30 | ±2 ppm | ±1 ppm | ±2 ppm | 3 ppm tot |
50 Ω | SRL-50 | ±2 ppm | ±1 ppm | ±2 ppm | 3 ppm tot |
100 Ω | SRL-100 | ±2 ppm | ±1 ppm | ±2 ppm | 3 ppm tot |
190 Ω | SRL-190 | ±2 ppm | ±1 ppm | ±2 ppm | 3 ppm tot |
200 Ω | SRL-190 | ±2 ppm | ±1 ppm | ±2 ppm | 3 ppm tot |
350 Ω | SRL-350 | ±2 ppm | ±1 ppm | ±2 ppm | 3 ppm tot |
400 Ω | SRL-400 | ±2 ppm | ±1 ppm | ±2 ppm | 3 ppm tot |
1 kΩ | SRL-1K | ±2 ppm | ±1 ppm | ±1 ppm | 3 ppm tot |
1.9 kΩ | SRL-1.9K | ±2 ppm | ±1 ppm | ±1 ppm | 2 ppm tot |
2 kΩ | SRL-2K | ±2 ppm | ±1 ppm | ±1 ppm | 2 ppm tot |
4 kΩ | SRL-4K | ±2 ppm | ±1 ppm | ±1 ppm | 2 ppm tot |
10 kΩ | SRL-10K | ±2 ppm | ±1 ppm | ±1 ppm | 1.5 ppm tot |
19 kΩ | SRL-19K | ±2 ppm | ±1 ppm | ±1 ppm | 2 ppm tot |
20 kΩ | SRL-100K | ±2 ppm | ±1 ppm | ±2 ppm | 2 ppm tot |
100 kΩ | SRL-100K | ±2 ppm | ±1 ppm | ±2 ppm | 2 ppm tot |
190 kΩ | SRL-190K | ±2 ppm | ±1 ppm | ±2 ppm | 2 ppm tot |
200 kΩ | SRL-190K | ±2 ppm | ±1 ppm | ±2 ppm | 2 ppm tot |
1 MΩ | SRL-1M | ±2 ppm | ±2 ppm | ±2 ppm | 2 ppm tot |
1.9 MΩ | SRL-1.9M | ±2 ppm | ±2 ppm | ±2 ppm | 3 ppm tot |
2 MΩ | SRL-1.9M | ±2 ppm | ±2 ppm | ±2 ppm | 3 ppm tot |
10 MΩ | SRL-10M | ±2 ppm | ±2 ppm | ±2 ppm | 3 ppm tot |
19 MΩ | SRL-19M | ±2 ppm | ±9 ppm | ±2 ppm | 4 ppm tot |
20 MΩ | SRL-19M | ±2 ppm | ±9 ppm | ±2 ppm | 4 ppm tot |
100 MΩ | SRL-100M | ±10 ppm | ±9 ppm | ±20 ppm | 5 ppm/°C |
190 MΩ | SRL-100M | ±10 ppm | ±9 ppm | ±20 ppm | 5 ppm/°C |
200 MΩ | SRL-100M | ±10 ppm | ±9 ppm | ±20 ppm | 5 ppm/°C |
1 GΩ | SRL-1G | ±0.1% | ±100 ppm | ±100 ppm | 20 ppm/°C |
1.9 GΩ | SRL-1G | ±0.1% | ±100 ppm | ±100 ppm | 20 ppm/°C |
2 GΩ | SRL-1G | ±0.1% | ±100 ppm | ±100 ppm | 20 ppm/°C |
10 GΩ | SRL-10G | ±0.1% | ±200 ppm | ±300 ppm | 25 ppm/°C |
19 GΩ | SRL-10G | ±0.1% | ±200 ppm | ±300 ppm | 25 ppm/°C |
20 GΩ | SRL-10G | ±0.1% | ±200 ppm | ±300 ppm | 25 ppm/°C |
100 GΩ | SRL-100G | ±0.2% | ±1000 ppm | ±300 ppm | 25 ppm/°C |
190 GΩ | SRL-100G | ±0.2% | ±1000 ppm | ±300 ppm | 25 ppm/°C |
200 GΩ | SRL-100G | ±0.2% | ±1000 ppm | ±300 ppm | 25 ppm/°C |
1 TΩ | SRL-1T | ±0.5% | ±0.25% | ±300 ppm | 50 ppm/°C |
1.9 TΩ | SRL-1.9T | ±0.7% | ±0.7% | ±500 ppm | 100 ppm/°C |
2 TΩ | SRL-2T | ±0.7% | ±0.7% | ±500 ppm | 100 ppm/°C |
10 TΩ | SRL-10T | ±0.7% | ±0.7% | ±1000 ppm | 100 ppm/°C |
19 TΩ | SRL-19T | ±0.7% | ±0.7% | ±1000 ppm | 100 ppm/°C |
20 TΩ | SRL-20T | ±0.7% | ±0.7% | ±1000 ppm | 100 ppm/°C |
Retrace:1 Ω to 19 MΩ: Permanent shift in resistance value is <2 ppm for 23°C to 0°C to 23°C cycle, and 23°C to 40°C to 23°C cycle
Calibration Report: Initial SI traceable calibration data provided in 0.5°C increments for temperature range of 18°C to 28°C.
Calibration Conditions: At 23°C, low power, traceable to SI <1 MΩ: Five-wire 1 MΩ - 20 MΩ: Three-wire ≥100 MΩ: Four-wire