resistance and temperature measurement where precision ma tters

Resistance Testers Temperature Measurement Resistance Decades & Standards Seaward Group

A PRECISE MEASUREMENT IS A V ALUABLE PIECE OF INFORMATION. AN IMPRECISE MEASUREMENT ISN’T . We produce a wide range of high quality measuring instruments and standards and have done for over 50 years. Our range of products covers all aspects of resistance and temperature measurement. Our resistance meters range from handheld to high powered bench micro ohmmeters. We pride ourselves on accuracy and reliability of measurement with our entry level model having 1 micro ohm resolution. We offer a wide range of micro ohmmeters so we can provide the best instrument for your resistance measurement needs....

RESIST ANCE MEASUREMENT Cropico specialise in low resistance measurement and offer a the ohmmeter and the voltage across Rx is compared with the variety of ohmmeters to cover the various applications and voltage across this internal standard. From the ratio of these customer circumstances. Typical applications are listed on two voltages the resistance value of Rx is calculated and displayed. Because the same current is passed through both Some applications and testing standards require special leads the standard and the Rx and the ratio is calculated, the current and jigs for connecting to the...

for example Nickel Plated Brass connecting clips can cause Specifications demand higher measuring currents and there is very large thermal E.M.F.’s to be generated when connected to an argument that says a higher test current also tests the copper wires. For best results unplated copper or brass leads mechanical integrity of joints, i.e. if only a strand of wire is and fittings should be used. making the connection a high test current would burn away this strand. We believe there are better and more reliable ways of testing a joint’s mechanical integrity. Possible Measurement Errors Poor Connection:...

Typical Applications unit is then run at full load for a specified period and then the There are many reasons why resistance of material is resistance measured again from the change in resistance value, so the internal motor / generator temperature can be determined. Our ohmmeters are also used to measure the ■ Manufacturers of components such as resistors, inductors individual coils of a motor winding to ensure there are no short and chokes all have to verify that their product meets the or open circuit turns and that each coil is balanced. specified resistance tolerance, end of production line...

PRODUCT COMPARISON T ABLE FOR RESIST ANCE MEASUREMENT 4000 Auto Average Mains/Battery Rechargeable Option Rechargeable Option Rechargeable Option Hi/Low Limits Data Logging Temp Compensation Fast Measure INDUSTRY COMPARISON T ABLE FOR RESIST ANCE MEASUREMENT Ohmmeter Calibration Labs Manufacturers of vehicles and components motors, alternators, connectors, cable harnesses, switches Bonding resistance (metallization) of aircraft frames and all equipment Measurement of cable resistance Calibration standards Utilities; electrical, water and gas Army, Navy, Air force, bonding resistance of vehicles...

RESISTANCE TESTERS D04A RUGGED, PORT ABLE DIGIT AL OHMMETER WITH 415V PROTECTION, DIGIT AL CALIBRA TION & 4000 COUNT The DO4A is a practical instrument for low resistance measurement, ideal for use in the workshop, field or test facilities. True 4 wire measurement eliminates lead resistance errors tilt handle. The DO4A has many advanced features, including 6 push button ranges 40 milli ohm… 4 kilo ohm with long scale length protection up to 415 volts rms, digital calibration and long scale 10 micro ohm resolution on 40 milli ohm range length (4000 count). The rechargeable sealed lead acid battery...

D04A SPECIFICA TIONS Range Typical Current Temperature Coefficient/°C 4 terminal Kelvin/Thomson principle eliminates errors due to lead resistance Display 15mm LCD 4000 count with automatic decimal point and polarity indication 15mm x 250mm x 88mm (W H D) approx 1/2 19” rack 2U high 467mm x 374mm x 216mm packed in carton 6 push button selected with LED indication 3.5kg approx. 4.5kg packed in carton Auto Zero 4mm binding posts accept spade tags and 4mm banana plugs Permits the automatic zero of amplifiers and external circuits, eliminating errors due to thermal E.M.F. Working Temperature 0°C...

RESISTANCE TESTERS D04000 SERIES HAND HELD, GENERAL PURPOSE, PORT ABLE DIGIT AL MICROHMMETERS COMBINING ALL THE FEA TURES YOU MIGHT NEED The series D04000 digital micro ohmmeters offer true portability without any sacrifice to accuracy or functionality. True 4 terminal measurement eliminates lead resistance errors These ruggedly constructed instruments are housed in a Measuring range from 40 milli ohm to 4 kilo ohm stylish plastic case with easy to use keyboard. Measuring range from 4 milli ohm to 400 ohm measured values are displayed on a large LCD screen which allows for ease of viewing. advanced...

D04000/DO4001 SPECIFICA TIONS Range Typical Current Temperature Coefficient/°C D04002 SPECIFICA TIONS Range Typical Current Temperature Coefficient/°C 4 terminal Kelvin/Thomson principle eliminates errors due to lead resistance 215mm x 130mm x 55mm (W H D) approx 467mm x 374mm x 216mm packed in carton 15mm LCD 4000 count with automatic decimal point and polarity indication Buttons to null measurement offsets 6 automatic or manual selection with LED indication Terminals 415 Vrms maximum at the measuring terminals will blow internal protection fuse Working Temperature Digital security code protected...

RESISTANCE TESTERS D05000 SERIES A COMPREHENSIVE RANGE OF MAINS AND BA TTERY POWERED DIGIT AL MICROHMMETERS WITH TEMPERA TURE COMPENSA TION The D05000 series of digital micro ohmmeters offer flexibility of measurement with high accuracy and exceptional True 4 terminal measurement eliminates lead resistance errors Measuring range from 3 milli ohm to 30 kilo ohm functionality. The D0500 series encompass all the features required in an ohmmeter in one practical instrument. This series of instruments have programmable measuring Measuring range from 200 milli ohm to 30 kilo ohm current in 100 steps,...