Kongsberg d0000930-presafe-atex-report signed

General product information:

Abbreviations used are: DUT: Devices Under Test (built-in modules).           KM: Kongsberg Maritime AS

Built-in modules included in this investigation are:

Modules Art. No. Description Specs

RAIV400 600370 Remote Analogue Input Voltage 24Vdc, max 0.9A power consumption. Heat

dissipation10W

RDIO420S 316564 Remote Digital Input Output 24Vdc, max 0.9A power consumption. Heat

dissipation10W

RMP420 306712 Remote Multipurpose I/O 24Vdc, 10W, Loop current max 1A per channel

RMP420S 319824 RMP420S (S version) 24Vdc, 10W, Loop current max 1A per channel

RMP422 388820 Remote Multipurpose I/O 24Vdc, 10W, Loop current max 1A per channel

RMP422S 363350 RMP422S (S version) 24Vdc, 10W, Loop current max 1A per channel

RCU502 330924 Remote Control Unit 24Vdc, 20W power consumption, 20W heat

dissipation

RSER200-4 603444 Serial Line Interface 24Vdc, 160mA

RHUB200-5 603442 RBUS Hub 24Vdc, 100mA

BUS-TERM 310955 BUS-Termination 24Vdc

RMC-TERM 346007 Remote Media Converter Termination 24Vdc

RMC-ST 321520 Remote Media Converter-ST 24Vdc, 80mA

EFI-16 321492 Earth Fault Indicator 24Vdc, max 100mA

Refer to Hardware Module Description (HMD) for comprehensive details of technical specifications

Intended use.

The built-in modules are intended for different application as parts of communication system/station. The cabinets

required for these built-in modules must have minimum IP54 rating. ‘X’-marking associated to special condition of

use is used. However safety concern was taken into account in considerations for relevant tests (e.g. thermal

endurance test).

Since external cabinet and the number of used modules at the end application are unknown, safety concern relied

on special condition of use. See ‘Condition of Use’. The internal temperatures are in any cases monitored by the

control system, e.g. internal air temperature.

Investigation of modules RMP420S & RMP422S (S-versions) is considered to be representative for modules

RMP420 & RMP422 since electronics is the same, only software may be different. The later designed module

RMP422S has multipurpose application which may/can cover the usage of several other listed modules as well.

Reset-switch and other addressable switch on a few modules may also be used only during testing/service/repair

or initializing start-up procedure of DUT where the service personnel must follow the normal safety procedures

before any service/repair work. See Special condition of use. Those switches are not used in normal operation

mode. Warning and safety precaution are provided for these switches and their application. See Copy of marking

plate.

Design.

All modules have internal transient protection except for module. RSER200-4 module is however interconnected

between other modules with internal transient protection. All modules have power dissipation approximately to or

less than 20W, therefore these built-in modules are considered as non-sparking low power equipment complying

with clause 13 of IEC60079-15: 2010. Requirements of creepage & air clearance distances are exempted. The

operating input voltage for all modules is 24Vdc, all secondary analogue and digital voltages are derived from

24Vdc input for functional purposes. Assessments are based therefore on 24Vdc as the only operating voltage.

0V reference of 24Vdc input is connected to module’s metal frame. DUT may be earthed in the end installation

and may be evaluated in the end use. Power supply with galvanic separation must be used in the end application.

Connection facilities and suitable terminals are provided. The cable lug connection may be used only during

testing or initializing start-up procedure of DUT. Cable lug is not used otherwise in normal operation mode. All

wiring is to be internal in the end installation.

General product information:

The module EFI-16 Earth Fault Indicator is used to monitor the input and output current and which indicates an

earth fault. Relay K1 on EFI-16 module is investigated for ‘nC’ requirements of IEC60079-15: 2010. Module EFI

16 is therefore evaluated for nA & nC type of protection.

Opto-couplers are used as functional separation for I/O signal of communication system. Opto-couplers have no

safety function and are treated as any other ICs due to the fact that investigation is based on requirements of

non-sparking low power equipment.

Test configuration / considerations

Built-in modules have different rated input voltage range. The output current on I/O channels are consequently

controlled & distributed so that the thermal & power aspects do not exceed the defined limits.  All channels are

short circuit protected. For high current outputs the cut-off point is by default limited to 1.08 Amp for each

channel, regardless of the supplied voltage (18 – 32VDC). Output is shutdown at input voltage less than the max

rated voltage due to this reason. Thermal condition and current are monitored and are controlled by the ma

Measurement Section, including Additional Narrative Remarks (as deemed applicable)

Clause 5.3 Maximum surface temperatures

Clause 26.5 Thermal tests. Temperatures measurements documented in Appendix B.1 of the associated