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Supersedes all previous issues of Price List 18-310 and
Price Supplement 18-310; Price List 18-315 and Price Supplement 18-31 5;
Price List 18-316 and Price Supplement 18-316. PRICE LIST 18-310
EFFECTIVE MARCH 20, 1942
WESTI""GHOUSE INDUSTRIAL MOTORS AND CO""TROLLERS
PHOTO.TROLLERS, PHOTOTUBE HOUSINGS
AND LIGHT SOURCES
(See Descriptive Data 18-310) (For Other Photo-Trollers See Price List 18-312)
SELECTION OF EQUIPMENT
Before recommending equipment for any application, the customer's problem should be thoroughly understood and
the following information should be obtained:
1. Distance between light source and phototube,
2, Interruption of 50% of light beam, based on a 1%;" diameter beam, necessary for maximum operating distance.
3, Operating conditions such as temperature, dust and weather conditions (indoor or outdoor),
4
S d f ' { a. Number of operations per minute.
• L pee 0 opera tIon. b. Time of single operation.
5, Space available for mounting the light source, phototube housing and/or Photo-Troller.
Having obtained above information, consult the charts below to select the proper equipment. For register regulator applications
see Pr:cG Lists 18-311 and 18-5 13.
TYPE F
General
Purpose
to operate
from
Phol'O
troUer', or
5,5 volts
o.
TYPE 0
voltagO
General
Purpose
to operate
from
supply,
115 volts
TYPE L
Pulsating
light
LIGHT
SOURCES
TYPE E
TYPE L
_ =-
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eA ""g:j
FOR INDOOR USE ONLY
WHEN PHOTOTUBE HOUSING IS REQUIRED
POO',',bo HOO'::::::::::,,:::: , : H , ,,tog fu,
'HDTO..
OVER 20' AND UP TO 40'
:::::. - -- - ----- - ----r-
---------
_ _ "t' _ _
OVER 20' AND UP TO 40'
UP TO :W
(Wlren .po .. I. no,