Ion Science Hydrosteel 7000 - Manual (Page 7)

Hydrosteel 7000 MANUAL Ion Science Ltd
Page 7 of 43
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Introduction to Hydrosteel 7000
The Hydrosteel 7000 is an intrinsically safe instrument for the measurement of hydrogen flux from pipes and
vessels. The unit is designed for operator free maintenance for up to one year, subject to correct installation,
and appropriate power supply. During this time the unit will take unlimited measurements and log them
internally. The unit has two 4-20 mA outputs that provide constant output of flux and surface temperature
data. An RS232 port enables the download of internally stored data. The unit has been robustly designed
with IP66 weather proofing for external installation in most environments.
Hydrosteel 7000 has been designed with a view to presenting trouble free installation, commissioning and
maintenance. For maintenance we recommend the service exchange of the product. Disconnection of the
unit for service can be carried out while the instrument is powered, by simple detachment of analyser
connections, under intrinsically safe conditions.
The requirements for installation in Zone 1 hazardous area are summarised below and in the Installation
summary diagram. The reader should refer to Installation section, and to the Hydrosteel 7000 ATEX
certificate for further details.

Power to instrument should be supplied via zener safety barrier or galvanic isolator.

Two 4-20 mA receivers that supply loop power to hazardous area through appropriate safety barrier /
galvanic isolator are needed.

To ensure EMC compliance always use screened cables for bother power and 4-20 mA outputs.

Mounting to wall or frame with appropriate hole centres.

Probe to be installed on equipment with sample tube connection made to Hydrosteel 7000. Unit must
be within 10 m (32 ft) of probe test point.

Weather protection for probe. It is recommended that the probe is insulated and clad professionally.
The Hydrosteel 7000 has been certified intrinsically safe by European notified body BASEEFA 2001 to the
ATEX directive 94/9/EC. Baseefa04ATEX0205.