Keithley electrometers for every dc laboratory test
M o d e l 6 1 0 , line-operated, 59 ranges
Model 6 0 0 , battery-operated, 53 ranges
The Keithley 610 Electrometer is a laboratory workhorse, doing the work of several instruments. It covers the extreme spans of dc voltage, current, and resistance tabulated below, and is a useful preamplifier as well. It has precise gains to 1000, a dc to 500 cps bandwidth, and 10-volt and 1-ma outputs. Input resistance of the 610 is selectable from one ohm to over 1014 ohms. It checks its own resistance and voltage supply standards. Zero drift is comfortably within 2 millivolts per hour after warmup.
The Model 600 is a small, portable, battery-operated sister of the 610. Its many ranges also are tabulated below. Like the 610, its input resistance may be varied from one ohm to over 1014 ohms, permitting an optimum balance of low circuit loading verus minimum pickup. Output is sufficient to drive potentiometric recorders directly, with a dc to 100 cps band-width, and zero drift is within 2 millivolts per hour. The 600 will check its own batteries; minimum battery life is 500 hours.
Need a few specials? Recent Keithley developments include instruments for the Navy's Vanguard, for Army research balloons, and for Air Force research missiles. Your special problem will receive a prompt reply.
MODEL
610 600
VOLTAGE
10 mv to 100 volts lOmvto 10 volts
FULL SCALE RANGES CURRENT 13
10 amp. to 3 amperes 1 0 1 3 a m p . to 3 amperes
RESISTANCE
10 ohms to 1014 ohms 10,000 ohms to 1013 ohms
PRICE
$465.00 $380.00
T H R E E ACCESSORY probes are available to facilitate measurements and extend the measuring range to 30 kv (Model 610) or 10 kv (Model 600). A convenient accessory test shield permits rapid checks of small components. Write today for more details.
KEITHLEY I N S T R U M E N T S , I N C . 12415 EUCLID AVENUE
Circle No. 97 an Readers' Service Card 122 A
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ANALYTICAL CHEMISTRY
· C L E V E L A N D 6, OHIO
