1043 TIME-ELECTRONICS | Alldatasheet
Document overview
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Technical content
- 0.1 – 10 M
- High accuracy and precision
- Clear visual indication
- High stability and low temperature coefficient
- Compact and robust. Introduction Specification The 1043 is a compact, robust and accurate decade re- sistance box designed to meet the needs of both industry and education. Housed in a robust metal case, the com- pact construction makes it easily portable. When in use in the laboratory, it takes up a minimum of bench space. The high accuracy of the 1043 is achieved by means of high stability metal film resistors. Accuracy at low settings is determined by the switch contact resistance which has been kept to a minimum. Mid-scale accuracy is 0.1% or better. The thumbwheel switch selection of output re- sistance enables precise setting with a clear unambigu- ous indication. Metal film resistors are used to obtain the high stability and low temperature coefficient. The temperature coeffi- cient is typically better than 50 ppm per ºC. Each resistor has a power rating of 1 watt. It is imperative that the switch setting should be unambig- uous in order to avoid misreading the set value. The pos- sibility of misreading increases considerably as the num- ber of digits is increased. To prevent misreading, the 1043 incorporates a unique colour coding system to di- vide the setting into 3 groups corresponding to ohms,kilohms and megohms. This feature makes the 1043 ideal for educational applications. Special attention has been given to the problem of relia- bility of operation. A special multiple gold contact switch arrangement ensures that a back-up contact is always available to take over should a failure occur. Resistance Range: 0.1 To 10 M in 0.1 steps Zero Residual Resistance : less than 250 milliohms Power Rating : 1 watt per resistor: Metal film resistors are employed throughout Temperature Coefficient: 50 ppm per ºC Connections: 4 mm terminals. A third terminal enables the case to be earthed or connected to either output. Construction. The case is of robust metal construction finished in two-tone blue and black. Dimensions: 110 x 75 x 200 mm Weight: 0.6kg Optional Estras: Carrying Case for field and industrial applications.
Ordering Information
Decade Resistance Box 1043 Carrying Case 9026 N.P.L. Traceable Calibration Certificate 9172 UKAS Calibration Certificate 9114 Time Electronics Limited, Botany Industrial Estate, Tonbridge, Kent. TN9 1RH Telephone: 01732 355993 Fax: 01732 770312 V4 05/09/03