Dimension  ( W-D-H )  8_1/4" x 10_1/2" x 6"  /  21 cm x 27 cm x 15 cm

WESTON ELECTRICAL INSTRUMENT CORP., Newark, NewJersey / USA    (1959)
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SCALES  =  0 .. 500       Class = 0.25       AC & DC       SN = 17953

RATED VOLTS  =  200 ;  100 ;  50           RATED AMPS.  =   2.5 ;   5
 MAX. VOLTS  =  300 ;  150 ;  75            MAX. AMPS.  =   5   ;  10

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There are  1 LABEL  in the lid  &  3 LABELS  on the instrument ...

 o  INSTRUMENT CHECKS WITHIN GUARANTEED ACCURACY
    Model  =  310           No. =  17953
    Date   =  5 / 26 / 65   By  =  RK
    CHRISTIE LABORATORIES, INC. Cleveland, Ohio

 o  CALIBRATED
    Due Date    =  1 / 11 / 94
    Date Proc.  =  FLUKE ...
    Date Calib. =  1 / 11 / 93
    By          =  ...

 o  BALTEAU STANDARD INC.
    Asset No.  =  758    Serial No. =  17953
    DO NOT REMOVE

 o  SOUTHERN OREGON CAL.-LAB.
    CALIBRATION VOID IF SEAL BROKEN

In the LID is this description ...



HANDLE & HINGES were removed and SEAL was broken as I got this
Instrument. Hoping to find the parts inside ... Sorry, NO ...



(1)   Watt-Meter THEORY & TEST-UNIT see  SIEMENS  ...
(2)   HOW-TO-USE THIS WATT-METER, see the USA-Version of a
                                           ... TEST-UNIT
impressum:
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© C.HAMANN        http://public.BHT-Berlin.de/hamann         12/13/14