Seaward Cropico RS3/250 [930032] High Stability Resistance Standard, 250 Ohms

The Seaward RS3/250 Cropico RS3 High Stability Resistance Standard, 250 Ohms is constructed using carefully selected low temperature coefficient wire, mounted on formers which have a high mechanical stability. The wires are wound in a strain free manner and heat treated to remove any stresses. They are also artificially aged under the strictest control. The result is a standard of high quality with long term stability and permanence of calibration combined with a low temperature coefficient. The RS3250 also offers a high current carrying capability which makes them ideal for applications where precise current needs to be measured. This product has a resistance value of 250 Ohms.

Features:

• Resistance Value: 250 Ohms
• Uncertainty of Adjustment @ 20°C: 0.005%
• Uncertainty of Certification: ±25 ppm
• Temp Coeff Typical 15 to 20°C: 3 ppm/°C
• Stability of over 1 year: 0.001%
• Dissipation Max in Air Watts: 1
• Dissipation Max in Oil Watts: 10
• Max. I in Air (Amps): 0.1 A
• Max. I in Oil (Amps): 0.1 A
• Maximum Continuous Working Voltage: 70 dc/33 VRMS
• Terminals: Potential, Copper 4 mm Current, Brass
• Excellent load coefficient
• 4 terminal construction
• Can be used in air or oil bath
• Applications:
• Calibration houses
• Laboratories/workshops

---

What's In The Box:

---

• (1) Decade box
• (1) User manual

---

Brochure/Datasheet

---

Instruction manual

Note: Prices are not binding , subject to change without prior notice