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Directives and standards
VdTÜV Bulletin "Water Monitoring 100"
The conductivity electrode LRG 16-9 in conjunction with the following conductivity switches and con-
trollers is type approved according to VdTÜV Bulletin "Water Level 100": LRS 1-7, LRS 1-50, LRR 1-50
and LRR 1-52.
The VdTÜV Bulletin "Water Monitoring 100" states the requirements made on water monitoring
equipment.
ATEX (Atmosphère Explosible)
The equipment is a simple item of electrical equipment according to DIN EN 50020 section 5.4. Ac-
cording to the European Directive 2014/34/EU the equipment must be equipped with approved Zener
barriers if used in potentially explosive areas. Applicable in Ex zones 1, 2 (1999/92/EC). The equipment
is not Ex marked.
UL/cUL (CSA) Approval
The equipment complies with the requirements of the following standards: UL 508 and CSA C22.2
No. 14-13, Standards for Industrial Control Equipment. File E243189.
Approvals for Marine Applications
The conductivity electrode LRG 16-9 in conjunction with conductivity switch LRS 1-7 is approved for
feedwater monitoring on seagoing vessels. See data sheet.
Pressure Equipment Directive 2014/68/EU
The conductivity control and monitoring equipment LRG 1.-.., LRS 1-.., LRR 1-5. meet the safety re-
quirements of the Pressure Equipment Directive (PED). The conductivity control & monitoring equipment
is EC type approved according to EN 12952/EN 12953. These Directives state, among other things, the
requirements made on limiting systems and equipment for steam boiler plants and (pressurised) hot-
water installations.
Note on the Declaration of Conformity / Declaration by the Manufacturer
For details on the conformity of our equipment according to the European Directives see our Declaration
of Conformity or our Declaration of Manufacturer.
The current Declaration of Conformity and Declaration of Manufacturer are available in the Internet under
www.gestra.com documents or can be requested from us.
