. in :t74. 



Moving Coil Needle Galvanometers. 



885 



61 362 A. 1:5. 



61 362 B. 1:5. 



61.360. Portable Moving Coil Needle Galvanometer, Figure; approx. resistance 150 ohms; 

 1 degree deflection = approx. 0.000 006 amp 



61.361. Portable Moving Coil Needle Galvanometer after Weston, Figure, of very high 

 sensitivity, completely replacing a mirror galvanometer for technical resistance-measu- 

 rements and other zero methods; approx. resistance 300 ohms; 1 degree deflection 



= approx. 5xlO~ 7 amp. The coil rests on pivots and the instrument does not there- 

 fore require any special setting up 



61.362. Precision Moving Coil Universal Galvanometer, Figures A and B, for the direct 

 measurement of currents to 0.15 ampere, voltages to 150 volts, e. m. f.'s, battery and 

 wire resistances from 0.03 to about 30,000 ohms, and for determining errors' in leads: 

 comprising a precision Millivolt- and Ampere-Meter of 1 ohm resistance and a spheri- 

 cally stretched measuring wire the graduations of which permit of the resistances being 

 read direct. By using a 110 volt battery insulation resistances to approx. 1,000,000 ohms 

 can be measured. For measuring currents above 0.15 ampere the undermentioned 

 shunts are used. A carrying case is included in the price; there is room for 4 shunts 

 in the case . 





 3. 



5. d. 

 0.0 



8. 5.0 



21.15.0 



The scheme of connections together with explanatory signs in German (or if desired, in French 

 or Russian) are etched into the cover plate of the instrument. 



Accessories for No. 61,362: 

 Manganin Shunts for placing on the instrument: 



61.363. For Currents to 0.75 Ampere 



61.364. 1.5 



11.365. .. 3 

 <>!.. !(;<>. 7.5 



61.367. 15 



61.368. ,, 30 



Manganin Shunts including leads for connecting to the instrument: 



61.369. For Currents to 75 Amperes 



61,370. 

 61.371. 

 61,372. 

 61,373. 

 61,374. 



150 



300 



750 



1500 



3000 



) 



with leads 0.2 



long 



\ with leads 0.75 m long 

 with leads 2 m long . 



2. 

 2. 



7. 

 9. 



4. 

 6. 



5. 



I). 

 0. 



|. .-.KI7, 2386, 

 2372, 2:!7.'l. 



21. lo. i 



238:5. 



