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 electrical 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 KFD2-HLC-Ex1.D.** HART Loop Converter is designed to transfer up to three dynamic variables from a HART field device located in the hazardous area to unspecified apparatus located in the non-hazardous area using the HART protocol. The voltage and current passed to the hazardous area is limited to intrinsically safe levels. The hazardous area circuit is galvanically isolated from the non-hazardous area circuit using transformers. The Type KFD2-HLC-Ex1.D.** HART Loop Converter comprises a number of electronic components, including isolating transformers, fuses, zener diodes and resistors mounted on two inter-connected printed circuit boards and housed in a plastic enclosure with polarised plug-in terminals for hazardous and non-hazardous area connections. A Liquid Crystal Display (LCD) with push buttons is provided on the front of the enclosure to allow the user to monitor and configure the operation of the apparatus in addition to LED indication for Power-on and channel status. A jack socket is provided for updating the apparatus firmware using the data terminal.There are three models of the Type KFD2-HLC-Ex1.D.** HART Loop Converter, the Type KFD2-HLC-Ex1.D providing the basic functions and the Type KFD2-HLC-Ex1.D.2W HART Loop Converter with two output relays and the Type KFD2-HLC-Ex1.D.4S HART Loop Converter with four output relays. The models fitted with relays provide either two or four relay outputs to the non-hazardous area for fault indication. All models in terms of intrinsic safety are identical.See annex for electrical parameters