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Appendix A
Appendix A
The PCB assemblies used in the control unit and probe contain electrostatic sensitive devices.
These may be permanently damaged by electrostatic potentials encountered in routine
handling of the assemblies during servicing.
We therefore recommend that all servicing be carried out in a specialised handling area (SHA)
as defined by CECC00015 (published by CENELEC) to avoid damage to the assemblies.
Special Handling Procedures
The following should be used for all soldering operations carried out on any Dopplex product in
servicing:
Soldering Iron: 'Mini' type iron, temperature controlled to 375°C with fine tip (typically
0.8mm(1/32")) earth bonded. e.g.Weller EC3100D-ESP.
Solder: SN62 type solder with multi cored flux type RA conforming to QQ-S-571e (US federal
specification). e.g.Multicore 'smart wire'.
If further information is required, please contact Huntleigh Healthcare Ltd
Recommended Soldering Equipment for Rework
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