7526A Precision Process Calibrator
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“Doing more with less” is a requirement every process manufacturer faces today. To maintain product quality, reduce waste, improve efficiency and conform to regulatory standards, instruments that measure process variables such as temperature and pressure must be calibrated at regular intervals.
Selecting the right calibrator for the job, however, can be tricky—especially when attempting to balance precision and versatility with the cost. Less expensive than high-end multi-product calibrators, yet more precise and versatile than handheld field calibrators, the 7526A is a “best fit” for instrument shops that value precision, versatility and economy.
Specifications: 7526A Precision Process Calibrator
| DC voltage, output | |||
| Range [1] | Absolute Uncertainty, ± (ppm of output + μV), 1-yr |
Resolution | |
| 0 to 100 mV | 30 | 3 | 1 μV |
| 0 to 1 V | 30 | 10 | 10 μV |
| 0 to 10 V | 30 | 100 | 100 μV |
| 0 to 100 V | 30 | 1 mV | 1 mV |
| TC Output and Input | |||
| –10 mV to 75 mV | 30 | 2 μV | 1 μV |
[1] All outputs are positive only unless otherwise noted
| DC voltage, isolated input | |||
| Range | Absolute Uncertainty, ± (ppm of reading + mV), 1-yr |
Resolution | |
| 0 to 10 V | 100 | 0.2 | 100 μV |
| 10 V to 100 V | 100 | 2.0 | 1 mV |
| DC Current, output | |||
| Range[1] | Absolute Uncertainty, ± (ppm of reading + μA), 1-yr |
Resolution | |
| 0 to 100 mA | 50 | 1 | 1 μA |
[1] For line voltages less than 95 V, ±100 ppm of reading
| DC current, isolated input | |||
| Range | Absolute Uncertainty, ± (ppm of reading + μA), 1-yr |
Resolution | |
| 0 mA to 50 mA | 100 | 1 | 0.1 μA |
| 0 mA to 24 mA [1][2] (Loop Power) |
100 | 1 | 0.1 μA |
[1] Loop Power: 24 V ±10%
[2] HART Resistor: 250 Ω ± 3%
| Resistance, output | |||
| Range | Absolute Uncertainty, tcal ± 5 °C, ± Ohms, 1-yr |
Resolution | Nominal current |
| 5 Ω to 400 Ω | 0.015 | 0.001 Ω | 1 to 3 mA |
| 5 Ω to 4 kΩ | 0.3 | 0.01 Ω | 100 μA to 1 mA |
| Resistance, input | |||
| Range | Absolute Uncertainty, ± (ppm of reading + Ω), 1-yr |
Resolution | |
| 0 Ω to 400 Ω | 20 | 0.004 | 0.001 Ω |
| 0 Ω to 4 kΩ | 20 | 0.04 | 0.01 Ω |
| Sample thermocouple accuracy, input/output (does not include all available TC types)[1] |
|||
| TC type | Temperature Range (°C) | Absolute Uncertainty, tcal ±5 °C, ± (°C), 1-yr [2] |
|
| Min | Max | ||
| J | -210 | 1200 | 0.09 |
| K | -250 | 1372 | 0.1 |
| S | -50 | 1767 | 0.29 |
| T | -250 | 400 | 0.11 |
[1] See extended specifications for all TC types (B,C,E,J,K,L,N,R,S,T,U,XK,BP)
[2] Best accuracy within specified TC temperature range
| Sample RTD and thermistor, output (does not include all available RTD types)[1] |
|||
| RTD Type | Temperature Range (°C) | Absolute Uncertainty, tcal ±5 °C, ± (°C), 1-yr |
|
| Min | Max | ||
| Pt 385, 100 Ω | -200 | 800 | 0.05 |
| YSI 400 | 15 | 50 | 0.007 |
[1] See extended specifications for all RTD types: Pt-100 (385, 3926, 3916), Pt- 200, Pt-500, Pt-1000, Ni-120, Cu-427, SPRT
| Sample RTD and thermistor, intput (does not include all available RTD types)[1] |
|||
| RTD Type | Temperature Range (°C) | Absolute Uncertainty, tcal ±5 °C, ± (°C), 1-yr |
|
| Min | Max | ||
| Pt 385, 100 Ω | –80 | 100 | 0.020 |
| 100 | 300 | 0.024 | |
| 300 | 800 | 0.038 | |
| YSI 400 | 15 | 50 | 0.007 |
[1] See extended specifications for all RTD types: Pt-100 (385, 3926, 3916), Pt- 200, Pt-500, Pt-1000, Ni-120, Cu-427, SPRT
| General specifications | ||
| Standard interface | RS-232, IEEE-488 (GPIB) | |
| Temperature performance |
Operating: | 0 °C to 50 °C |
| Calibration (tcal): | 18 °C to 28 °C | |
| Storage: | –20 °C to 70 °C | |
| Electromagnetic compatibility |
CE: Conforms to EN61326; operation in controlled EM environments |
|
| Temperature coefficient | Temperature coefficient for temperatures outside tcal 5 °C is 10% of the 90-day specification (or 1 year if applicable) per °C |
|
| Relative humidity | Operating: | <80% to 30 °C |
| <70% to 40 °C | ||
| <40% to 50 °C | ||
| Altitude | Operating: | 3,000 m (9,800 ft) max |
| Non-operating: | 12,200 m (40,000 ft) max | |
| Safety | EN/IEC
61010-1:2010 3
rd Edition, UL 61010-1:2012, CAN/CSA 22.2 No. 61010-1-12 |
|
| Analog low isolation | 20 V | |
| Line power | 120 V~: | 100 V to 120 V |
| 240 V~: | 220 V to 240 V | |
| Line frequency | 47 Hz to 63 Hz | |
| Line voltage variation | ± 10 % about setting | |
| Power consumption | 15 VA maximum | |
| Dimensions | Height: | 14.6 cm (5.75 in) |
| Width: | 44.5 cm (17.5 in) | |
| Depth: | 29.8 cm (11.75 in) | |
| Weight (without options) |
4.24 kg (9.35 lb) | |
Key Features: 7526A Precision Process Calibrator
- Sources and measures dc voltage, current, resistance, RTDs and thermocouples
- Extend pressure measurement range with any Fluke 750P and 700P Series Pressure Modules
- Includes 24 V dc transmitter loop power supply
- Measures 4-20 mA loop current
- Includes automated switch-test function
- Accepts ITS-90 coefficients for accurate SPRT measurements
- Compatible with MET/CAL® Calibration Software
- Includes certificate of calibration traceable to national standards (optional A2LA accredited calibration available upon request)
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