Resistance Decade Box Samar CR-B

• Used as a potential divider or for calibration (for example insulation tester)
• Chemical resistances of high stability, with dissipation 1W
• Precision 1% dc and ac up to 1 MHz. (on request execution at 0.1% )
• Range: 0 to 500M? with terminals for the following values:
• 0.5 - 1 - 2 - 3 - 4 - 5 - 10 - 20 -30 - 40 - 50 - 100 - 200 - 300 - 400 - 500 K?
• 1 - 2 - 3 - 4 - 5 - 10 - 20 -30 - 40 - 50 - 100 - 200 - 300 - 400 - 500 M?
• Execution in reading-desk metal case.

 

• DECADES BOXES OF RESISTANCE with switch precision 0.05% at terminals
• Calibration precision: ± 0.02 %
• Thanks to an opportune seasoning process the long term stability is ensured: 10 ppm in the first year and max 20 ppm in three years.
• Switches have a resistance of contact lower than 0.001 W invariable in the time.
• certificate of calibration of our laboratory

 

• DC / AC BRIDGES
• THOMSON - WHEATSTONE BRIDGE
• MAXWELL - DE SAUTY BRIDGE 50Hz
• SCHERING BRIDGE

 

• certificate of calibration of our laboratory
• DECADES BOXES OF CAPACITY with switch precision 2% at terminals
• Polypropylene capacitor
• Tangd : 0.003 to 1KHz
• Precision: to 1.000Hz at terminals ±2%
• Working voltage: 400Vdc max; 100V switching

 

• Decade box with spires
• studied to simulate high resistance
• suitable to check the insulation testers with test voltage up to 5000V d.c.
• Ranges that can be made with the 4 contact spires supplied: 10x1 M?, 10x10M?, 10x100M?, 10x1G?.
• Temperature coefficient: 100 ppm °C .
• Max power 2W for each element.
• Applicable max voltages : 1250V with 1M?, 2500V with 2M?, 3750V with 3M? and 5000V for values higher than 3M?.

 

• Values from 1nF to 1µF
• ON REQUEST DIFFERENT VALUES FROM THE ONES SHOWN
• Nominal voltage : 500Vdc
• Temperature coefficient: - (100 ± 50) x 10-6 /°C
• Test voltage: 2,000Vdc
• Insulation resistance: 500,000 MW
• Precision: ± 0.5 % at 1,000 Hz, between terminals

 

• Values from 1mH to 1H
• Inductances of precision used as standard in laboratory
• SAMAR certificate of calibration is supplied with each standard inductor.
• Precision: ± 0.1 % at 1,000 Hz, between terminals
• ON REQUEST DIFFERENT VALUES FROM THE ONES SHOWN

 

• REFERENCES DC VOLTAGE STANDARD
• certificate of calibration of our laboratory
• DC voltage reference standard providing standard cell accuracy for use in measuring laboratories.
• Nominal e.m.f.: 1.01865 calibration 5°/ 6° decimal digits
• Precision: ± 50 µV / ± 25 µV
• max output current: 1 mA continuative
• stability: < 10 ppm/month with working temperature 15 - 25 °C and relative
• humidity 45-85%

 

• Values from 1nF to 1µF
• ON REQUEST DIFFERENT VALUES FROM THE ONES SHOWN
• Nominal voltage: 500Vdc
• Temperature coefficient: - (100 ± 50) x 10-6 /°C
• Test voltage: 2,000Vdc
• Insulation resistance: 500,000 MW
• Precision ± 0.1 % at 1,000 Hz, between terminals

 

• certificate of calibration of our laboratory
• DECADES BOXES OF INDUCTANCE with switch
• Copper coils wrapped in air Precision to1.000Hz at terminals ±1%
• ON REQUEST BOXES AT VARIOUS SECTIONS AND TO 1 OR 2 DECADES