Nova-Tech RITEFLOW FLOWMETERS AND KITS - Manual (Page 12)

11
CLEANING AND CHANGING FLOATS
See below for details on Bel-Art’s Flowmeter Cleaning Kit (94040-9026).
For thorough cleaning, floats and float stops should be removed using the following procedures:
For Size Nos. 1, 2 and 3, push bottom float stop upward using the small diameter rod provided.
Push until both stops and floats pop out at the top. Be careful not to scratch inside of flowtube.
For Size.Nos. 4 and 5, pull float stops out from each end by using the wire hooks provided. Insert
one prong through tube past float stop, hook end on far side of stop and pull.
Clean flowtubes using a thin stiff brush with mild laboratory detergent such as Bel-Art’s Aquet ®
(Catalog No. F17094-0030). More stubborn stains can be removed from glass parts only by using
Chromerge
® (F17089-0000), Bel-Art’s chromic-sulfuric acid concentrate. Rinse and dry flowtube by
blowing clean dry air or Bel-Art’s Blow Hard ® , O.S. extra (F17080-0100) through it.
Do not handle floats as that may deposit a film that could cause sticking. Observe the following
procedures:
1. Dump floats from flowtube into a plastic cup or on a lint-free surface.
2. Using tweezers, dip each float into a cleaning solution. Never touch floats with your hand.
3. Dip float into an anti-static agent.
4. Remove and dry using clean dry air. Do not breathe on floats, as moisture impairs the clean sur-
face.
5. Replace floats in flowtubes or into their container.
FLOWMETER CLEANING KIT
Bel-Art’s Flowmeter cleaning kit (94040-9026) contains the following:
94040-9013 Cleaning solution, 1 /
2
oz.
94040-9015 Anti-Static agent, 1 /
2
oz.
F17080-0100 Blow Hard ® o.s. extra
94040-9017 Stiff Brush
94040-9016 Tweezers
94040-9003 Push Rod Long
94040-9001 Rod, Push