This certificate is issued as verification that a sample(s), representative of production, was assessed and tested and found to comply with the IEC Standard list below and that the manufacturer's quality system, relating to the Ex products covered by this certificate, was assessed and found to comply with the IECEx Quality system requirements. This certificate is granted subject to the conditions as set out in IECEx Scheme Rules, IECEx 02 and Operational Documents as amended.
This Unit verification certificate is issued as verification that the Apparatus identified on page 1, was assessed and tested and found to comply with the IEC Standard list below. This certificate is granted subject to the conditions as set out in IECEx Scheme Rules, IECEx 02 and Operational Documents as amended.
The apparatus and any acceptable variations to it specified in the schedule of this certificate and the identified documents, was found to comply with the following standards:
As this is a Unit Verification Certificate, no QAR is applicable as this certificate is specific to the items listed by serial number or other unique identification.
The Type KFD0-SD2-Ex Series Transformer Isolated Solenoid Drivers are designed to transfer current from unspecified apparatus located in the non-hazardous area to the hazardous area. The voltage and current passed to the hazardous area are limited to intrinsically safe levels and have linear characteristics. The hazardous area circuit is galvanically isolated from the non-hazardous area circuit using transformers.
The Type KFD0-SD2-Ex Series Transformer Isolated Solenoid Drivers comprise a number of electronic components, including isolating transformers, fuses, zener diodes and resistors all mounted on printed circuit boards and housed in a plastic enclosure with polarised plug-in terminals for hazardous and non-hazardous area connections. LED indication is provided for channel status.
There are single and dual channel models of the apparatus. The dual channel versions have two printed circuit boards fitted and are denoted by ‘2’ after ‘Ex’ in the model number. The digits at the end of the model number denote the voltage and current limit of the apparatus. The following models are in the range:
KFD0-SD2-Ex1.1045 KFD0-SD2-Ex2.1045KFD0-SD2-Ex1.1245KFD0-SD2-Ex2.1245KFD0-SD2-Ex1.1065KFD0-SD2-Ex2.1065KFD0-SD2-Ex1.10100 KFD0-SD2-Ex1.1180 ([Ex ia] IIB only)
See Annex for electrical parameters.