Simpson 880 WATTMETER - Page 17

here's the taut band
reliability you should demand
Simpson's search for reliability began at a major source
of trouble—the overly complicated design of conventional
Taut Band suspensions. The result was an improved sus-
pension with 25% fewer parts.
Because of this, you would expect life expectancy to zoom,
and trouble to nose dive. And that's just what happened.
The Ultimate In Test Programs—As just one step
in a comprehensive test program to insure reliability mea-
suring up to today's needs, Simpson engineers put ISO of
(he improved Taut Band meters on a continuing 24-hour
lest (cycled zero to full scale 2200 times per hour). As of
August 30. 1964, the ISO meters have logged 25,243,000
cycles without failure. This is equivalent to over 70 years
of normal operation. Weekly calibration checks show
that the meters are holding ± '/i% accuracy. Simpson
Taut Band meters also passed ASA tests for extreme
temperature, humidity, shock, and vibration.
Stocked for Immediate Delivery—Present units
stocked arc microammeters in 2'/i', 3!£", and 4^* sizes.
Ranges are 10, 15. 25, 50, 100 ua; accuracy, ± 2% F.S.
For fast service, call your distributor.
5202 W. Kinzlo Street. Chicago. Illinois 60544 • Phone: (312) ESlebr
. ., ..
Escondldo, Calif. • Phone: (714) SH 5-62
In Cinida; Bach-Simpson Ltd., London, Ontario
In India: Rutloniha-Slmpson Ptivate Ltd., Intornnllona
Bombay -Agro Road. Vikbrali. Bombay
Special Requirements—Contact your Simpson rep-
resentative or the factory. Sensitivities as low as 2 micro-
amperes at accuracies of 1% or better can be supplied,
Continuing reliability tests being run on 150 improved Taut
Band meters with 20 pivot-jewel meters used as control units.
WRITE FOR Bulletin PM-505.
ffepr<sen(a(/r« In Prlnclptt Cltlts
.. .Si* r»top/ioni Yillow P
for manf tests
Simpson MICRO-TESTERS...18 Types...Get Several
If you run tests on communication systems, motors, wiring, appliances,
tubes, components, batteries, or coolers, these nifty little testers are just
what you're looking for. Micro-Testers measure only 3* x 5ft* x 1
l
/i*. They
give you Simpson quality in a tester that is compact in both size and price.
All 18 are in slock far immediate delivery. Call your Electronics Distributor
or the factory for Bulletin 2066.
AC/DC VOLT-OHM-Ml LLIAMMETER: 12 raogu Mod«l 230
AC/DC VOLT-OHM-MIUIAHMtTER:Hr«ng« Modrt 240
OHMMETtR: 6 ranges. 0 ohms lo 50 mej Model 372
LOW-OHM METER: 0-5.0-25 ohms Model 362
AC AMMETER: 0-1, 2.5,5,10,25 imp.±5X FS Model 370
DC AMMETER: 0-1, 2.5,5, 10, 25 imp. ± 3j< FS Mod.l 375
AC MlLLIAMMETER:0-5,25,100,250,1000 ma, ± 5^ FS M"*"' 378
DC MILUAMMETER:D-!.5,10, 25,50, 100,250, 1000 nu, ± 3Ji FS Model 373
DC MICfiOAMMETER:0-50, 100,250.500, lDOQ,u» ± 3% FS Modal 374
AC VOLTMETER: 0-5,10,25.50,100,250, 500,1000 v, ± 5X FS Mod.l 376
AC VOLTMETER: 0-150,300, 600 V,±3XFS Model 371
DC VOLTMETER: 10 nniw.0 to 1000 «.±3XFS Mod«J 37?
DC MILLIVOLTMETER:D-10,30, 100,300, 1000 mv, ± 3% FS Model 387
AC VOLT-AM P. WATTMETER: 8 ranjes (300 v, 15 », 3000 w. mai) dt SK FS.. Model 390
AC/OC VOLT-WATTMETER: 4 range* (260 v, 3000 w, mix) ± 5% FS Model 391
AC/DC VOLT-WATTMETER: 4 ranges (260 v. 5000 w, max) ± 5j< FS Mod.l 392
BATTERY TESTERMoi radios, flashlights, hearing thh Model 379
TEMPERATURE METER: -SIT to 4-70'F (up to 3 lernp. tins lime) Mod.l 3B5-3L
SIMPSON ELECTRIC COMPANY
Bach-Simpson Ltd., London, Ontario