34  FABRICARE
Using The Laser Thermometer
The following paragraph outlines the best technique for 
obtaining accurate results.
1. The surface of the target should NOT be a highly reflective 
color like silver or white, or have a highly polished finish 
like chrome or stainless steel. If it does, take a black Sharpie 
marker and blacken an area about the size of a medium or 
large coin. Use this blackened area as the target spot on the 
surface to be tested. 
2. The laser pointer is typically used to select the target area 
and illuminate the center of the sensed area. Since the sensor 
measures all the infrared energy entering the lens, its accura­
cy improves progressively as you place the sensor closer to the 
target area. When using the laser thermometer to run these 
tests, be sure to position the lens of the laser thermometer 
slightly above the surface of the area being measured; don’t 
just aim it and use the laser pointer to take the temperature. 
A Note On Boiler Valves 
Valves used on boilers should be rated at the next higher level 
of the boiler’s maximum rated operating pressure. For example, 
if the rated operating pressure (usually found on the nameplate 
attached to the boiler) is 150 PSI, the valve would be steam-rat­
ed for at least 200 PSI. This rating typically appears on the valve’s 
body, following the SWP abbreviation for “steam working pres­
sure” (you won’t find these valves at Home Depot or Lowe’s). 
THE NUMBERS FOLLOWING THE ABBREVIATION 
WOG STAND FOR THE PRESSURE RATED FOR USE 
WITH WATER-OIL-GAS AND ARE NOT THE RATING 
FOR STEAM SERVICE.  
Bruce Grossman is the Chief of R&D for EZtimers Manufacturing. EZTIMERS 
MANUFACTURES MACHINES THAT MAKE YOUR MACHINES RUN 
BETTER. For those needing to replace ZERO-WASTE or GALAXY misters, 
see our SAHARA model. For those with boiler problems, check out our 
EZ-LEVEL and EZ-DOSE machines. For further information on EZtimers 
products, visit  www.eztimers.com. Please address any questions or comments to 
Bruce at bruce@eztimers.com  or call 702-376-6693.
NO. 789
B U L L E T I N

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