Manufacture: Yokogawa Product Description: Models 278610 and 278620 six-dial decade resistance boxes allow quick and easy setting of a wide range of resistance. These resistance boxes are used in combination with voltage or current standards to adjust voltage or current, as dummy load resistances or as an arm of AC bridges.
Specifications:
Resistance Range 0.1 to 111 Ohms (Six decade dials)
Residual Residence Less than 23m Ohms
Power Rating 0.3W/Step, Within 3W for overall instrument
Maximum Allowed Input 0.5W/Step, 5W for Overall Instrument
Maximum Circuit Voltage 250V
Operating Temperature Range 0 to 40 degrees C ( 32 to 104 degrees C)
Storage Temperature Range -10 to 50 degrees C (14 to 122 degrees F)
Humidity Range 25 to 85% relative humidity
Insulation Resistance More than 500M Ohms at 500V DC between panel and circuit
Dielectric Strength 1,500 V AC for one minute
Dimensions 116 x 497 x 120 mm 4 5/8 x 19 5/8 x 4 3/4 in
Excellent reproducibility is obtainable because dial switches with low contact resistance are used. For example, changes in contact resistance is within +- 1.1m Ohms at 0.1 Ohms setting.
1 m Ohms resolution
Simple, quick dial operation
In-line display for city reading
Ideal for calibration of resistance thermometers and brides
Due to its high accuracy and a dail system, various types of resistance thermometers and bridges can te calibrated accurately and promptly.
Excellent ami shock and -vibration properties
Specifications:
Dielectric Strength 1,000 V AC for one minute between Panel and Circuit
Insulation Resistance More than 500M Ohms at 500V DC between panel and circuit
Dimension 110 x 491 x 140 mm 4 3/8 x 19 3/8 x 5 1/2 in.
Weight 4.8 kg 106 lbs
Resistance Range 0.1m Ohms to 1,111.2100 Ohms (minimum resistance is 0.1 Ohms)
Dial Composition 0.001 Ohms x 10 + 0.01 Ohms x 10 + 0.1 Ohms x 11 + 1 Ohms x 10 + 10 Ohms x 10 + 100 Ohms x 10
Resolution 1m Ohms
Accuracy +-(0.01 Ohms + 2m Ohms) at temperature of 23 +-2 degrees C, humidity of 45 to 85%, and 0.1W Power Application
Max. Allowable Input Power 0.2SW/slep. Within 1W for overall instrument.
Manufacture: Yokogawa Product Description: Model 2791 is composed of resistance wire with an insulating coating wound on a frame of special ceramic and a sliding brush that maintains contact with the wire. Resistance is continuously variable and can be increased or decreased as desired. The device permits current and voltage to be accurately adjusted without disconnecting the circuit. The resistor is widely used in testing laboratories and also in industrial tests and inspection of machinery and equipment.
Specifications:
Nominal Value 4.7 Ohms
Allowable Input Current 6.0A
Allowable Deviation +-20% of Nominal Value
Insulation Resistance More than 500M Ohms at 500V DC between Terminal and case
Dielectric Strength 1,000 AC for one minute Between Terminal and case
Dimensions 125 x 510 x 85 mm 5 x 20 1/8 x 3 3/8 in
Manufacture: Yokogawa Product Description: Model 2791 is composed of resistance wire with an insulating coating wound on a frame of special ceramic and a sliding brush that maintains contact with the wire. Resistance is continuously variable and can be increased or decreased as desired. The device permits current and voltage to be accurately adjusted without disconnecting the circuit. The resistor is widely used in testing laboratories and also in industrial tests and inspection of machinery and equipment.
Specifications:
Nominal Value 10 Ohms
Allowable Input Current 4.0A
Allowable Deviation +-20% of Nominal Value
Insulation Resistance More than 500M Ohms at 500V DC between Terminal and case
Dielectric Strength 1,000 AC for one minute Between Terminal and case
Dimensions 125 x 510 x 85 mm 5 x 20 1/8 x 3 3/8 in
Manufacture: Yokogawa Product Description: Model 2791 is composed of resistance wire with an insulating coating wound on a frame of special ceramic and a sliding brush that maintains contact with the wire. Resistance is continuously variable and can be increased or decreased as desired. The device permits current and voltage to be accurately adjusted without disconnecting the circuit. The resistor is widely used in testing laboratories and also in industrial tests and inspection of machinery and equipment.
Specifications:
Nominal Value 39 Ohms
Allowable Input Current 2.0A
Allowable Deviation +-20% of Nominal Value
Insulation Resistance More than 500M Ohms at 500V DC between Terminal and case
Dielectric Strength 1,000 AC for one minute Between Terminal and case
Dimensions 125 x 510 x 85 mm 5 x 20 1/8 x 3 3/8 in
Manufacture: Yokogawa Product Description: Model 2791 is composed of resistance wire with an insulating coating wound on a frame of special ceramic and a sliding brush that maintains contact with the wire. Resistance is continuously variable and can be increased or decreased as desired. The device permits current and voltage to be accurately adjusted without disconnecting the circuit. The resistor is widely used in testing laboratories and also in industrial tests and inspection of machinery and equipment.
Specifications:
Nominal Value 170 Ohms
Allowable Input Current 1.0A
Allowable Deviation +-20% of Nominal Value
Insulation Resistance More than 500M Ohms at 500V DC between Terminal and case
Dielectric Strength 1,000 AC for one minute Between Terminal and case
Dimensions 125 x 510 x 85 mm 5 x 20 1/8 x 3 3/8 in
Manufacture: Yokogawa Product Description: Model 2791 is composed of resistance wire with an insulating coating wound on a frame of special ceramic and a sliding brush that maintains contact with the wire. Resistance is continuously variable and can be increased or decreased as desired. The device permits current and voltage to be accurately adjusted without disconnecting the circuit. The resistor is widely used in testing laboratories and also in industrial tests and inspection of machinery and equipment.
Specifications:
Nominal Value 600 Ohms
Allowable Input Current 0.5A
Allowable Deviation +-20% of Nominal Value
Insulation Resistance More than 500M Ohms at 500V DC between Terminal and case
Dielectric Strength 1,000 AC for one minute Between Terminal and case
Dimensions 125 x 510 x 85 mm 5 x 20 1/8 x 3 3/8 in
Manufacture: Yokogawa Product Description: Model 2791 is composed of resistance wire with an insulating coating wound on a frame of special ceramic and a sliding brush that maintains contact with the wire. Resistance is continuously variable and can be increased or decreased as desired. The device permits current and voltage to be accurately adjusted without disconnecting the circuit. The resistor is widely used in testing laboratories and also in industrial tests and inspection of machinery and equipment.
Specifications:
Nominal Value 1400 Ohms
Allowable Input Current 0.35A
Allowable Deviation +-20% of Nominal Value
Insulation Resistance More than 500M Ohms at 500V DC between Terminal and case
Dielectric Strength 1,000 AC for one minute Between Terminal and case
Dimensions 125 x 510 x 85 mm 5 x 20 1/8 x 3 3/8 in
Manufacture: Yokogawa Product Description: Model 2791 is composed of resistance wire with an insulating coating wound on a frame of special ceramic and a sliding brush that maintains contact with the wire. Resistance is continuously variable and can be increased or decreased as desired. The device permits current and voltage to be accurately adjusted without disconnecting the circuit. The resistor is widely used in testing laboratories and also in industrial tests and inspection of machinery and equipment.
Specifications:
Nominal Value 4800 Ohms
Allowable Input Current 0.18A
Allowable Deviation +-20% of Nominal Value
Insulation Resistance More than 500M Ohms at 500V DC between Terminal and case
Dielectric Strength 1,000 AC for one minute Between Terminal and case
Dimensions 125 x 510 x 85 mm 5 x 20 1/8 x 3 3/8 in
Manufacture: Yokogawa Product Description: Models 278610 and 278620 six-dial decade resistance boxes allow quick and easy setting of a wide range of resistance. These resistance boxes are used in combination with voltage or current standards to adjust voltage or current, as dummy load resistances or as an arm of AC bridges.
Specifications:
Resistance Range 1 to 111 Ohms (Six decade dials)
Residual Residence Less than 23m Ohms
Power Rating 0.3W/Step, Within 3W for overall instrument
Maximum Allowed Input 0.5W/Step, 5W for Overall Instrument
Maximum Circuit Voltage 250V
Operating Temperature Range 0 to 40 degrees C ( 32 to 104 degrees C)
Storage Temperature Range -10 to 50 degrees C (14 to 122 degrees F)
Humidity Range 25 to 85% relative humidity
Insulation Resistance More than 500M Ohms at 500V DC between panel and circuit
Dielectric Strength 1,500 V AC for one minute
Dimensions 116 x 497 x 120 mm 4 5/8 x 19 5/8 x 4 3/4 in
Variation of the resistance value is less than +-0.1% at 1M Ohms and 10M Ohms steps against 100V application, and less than +-0.04% at 100 Ohms 1 Ohms 10 Ohms, and 100 Ohms flaps against 10V application.
Shock and vibration proof construction
Easy-to-read in line indication
Best suited for calibration of insulation resistance testers and bridges
Specifications:
Dielectric Strength 2,500 AC for one minute between Panel and Circuit
Insulation Resistance More then 1011 Ohms at 1,000V DC between panel and circuit
Dimension 110 x 491 x 140 mm 4 3/8 x 19 3/8 x 5 1/2 in.
Weight 4.8 kg 106 lbs
Resistance Range 0 to 1,111.110 Ohms
Dial Composition 100Ohms x 10 + 1k Ohms x 10 + 10k Ohms x 10 + 100k Ohms x 10 + 1M Ohms x 10 + 10M Ohms x 10
Resolution 100m Ohms
Accuracy 100 Ohms, 1k Ohms, 10k Ohms, 100k Ohms Steps - +-(0.05 Ohms + 0.05m Ohms) 1 M Ohms and 10M Ohms Steps - +-0.2% (At temperature 23 +-2 degrees C, humidity below 75%, including residual resistance of approx. 0.05 Ohms).
Max. Allowable Input 100 Ohms Step 100mA 1 Ohms Step 30mA 10 Ohms Step 10mA 100 Ohms Step 3mA (100 to 600 k Ohms) 2000 V (700 k Ohms to 1 M Ohms) 1 Ohms Step 2000 V 10 Ohms Step 2000 V