Murphy Exhaust Pyrometers 10705146 - Manual

P-9011B page 1 of 2
Models 10705146 (00000819)
and 10705147 (00000956)
■ Single or Dual Port Reading
■ 2% Accuracy
■ Sealed Construction
■ Temperature Compensation
■ Easy to Read Scales
Description
The Single 10705147 (00000956) and Dual
10705146 (00000819) Port Pyrometers
monitor exhaust temperatures in all types of
engines. The Dual Port Pyrometer can mon-
itor each bank of a V-type engine, allowing
you to compare readings at all times. Both
pyrometers feature an easy-to-read illumi-
nated dial with scales in both Fahrenheit and
Celsius. They require no outside power
(except for dial lighting). Spring loaded
jewels and alloy pivots increase durability.
Murphy offers pyrometer accessories such
as thermocouples and wire lead assembly.
Application
Excessive exhaust temperature is a major
damaging factor to all engines. The best
way to monitor this temperature is with the
use of a pyrometer. Excessive exhaust tem-
perature is caused by an upset fuel/air ratio
or more fuel in the engine than there is air to
support it. This condition can occur as a
result of over throttling, a dirty air cleaner,
different fuels, a malfunctioning fuel sys-
tem, change of altitude, an out of tune
engine and many other causes. But whatever
the cause, a pyrometer indicates this condi-
tion before serious damage occurs.
Suitable for stationary or mobile engines,
power units, agricultural and construction
equipment, as well as marine and trucking.
Features
■ Large sweep scales for maximum legibility.
■ Internal illumination for night use.
■ Accuracy: 2% full scale.
■ Sealed housing.
■ Ambient temperature compensation.
■ Calibrated permanently at 2/3 scale.
■ Flush type mounting on any plane.
Benefits of Using a
Pyrometer
■ Longer engine life
■ Better fuel economy
■ Less lubrication oil dilution
■ Lubrication oil stays clean much longer
■ Exhaust emissions drop to a minimum
■ Malfunctions indicated before
excessive damage occurs
Specifications
Dial Scale
Single: 300 to 1300°F (150 to 700°C)*
Dual: 300 to 1200°F (150 to 649°C)*
*Celsius only dials available.
Dial Sweep (both models): 100°.
Accuracy: Full scale 2%.
Illumination
Internal 12 or 24 VDC.
Bezel: Polished stainless steel. †
† Black bezel available. Special order.
Case: PVC.
Pointer(s): Fire Orange.
Warranty
A limited warranty on materials and workmanship
is given with this FW Murphy product. A copy of
the warranty may be viewed or printed by going to
www.fwmurphy.com/support/warranty.htm
10705146
10705147
P-9011B
Revised 10-05
Catalog Section 10
Exhaust Pyrometers