OPAL AB - Purge Air Blowers (OPAL 100 and 200)

Integrated and wall mounted designs to provide clean filtered purge air protection to exposed optical surfaces of OPAL monitoring systems. RECOMMENDED.

OPAL ATK - Audit Test Kits (OPAL 100 and 200)

Kits include a set of secondary ND filters and audit test module for routine validation testing and service work.

OPAL AFS - Air Flow Switches (OPAL 100 and 200)

Signal connection into main control unit to alarm in the event of purge air failure, or dirty filters in AB assemblies. Recommended for most applications where purge air protection is critical. RECOMMENDED

OPAL FSS - Fail Safe Shutters (OPAL 200 only)

Provide automatic barrier protection between optical surfaces and contaminants in flue gases in the event of purge air failure. Used in conjunction with AFS flow detector switches. The unique design of the OPAL FSS offers daily automatic self test for both transceiver and retoreflector units, with auto alarm in the event of test failure.

OPAL ILH - In-Line Air Heaters (OPAL 100 and 200)

In extreme climate conditions, the ILH units provide purge air heating to OPAL 100 and 200 systems. They are fitted into AB purge air assemblies. The ILH units have inbuilt temperature control and overheating protection and are recommended for ambient conditions below 0 DegC down to -40 DegC.

OPAL AST - Alignment Sighting Tool (OPAL 100 only)

Used to ensure correct (repeatable) alignment in the event of OPAL 100 bench calibration and re-installation.