Keithley 486 at Metrictest.com

Keithley 486 Analog Picammeter

The Model 486 is a 51/2-digit autoranging picoammeter designed for low current applications where fast reading rates must be made.

The 486 is ideal for low level DC current applications, such as:
• PMT current measurements
• mass spectrometer current measurements
• probe current measurements in electrochemistry
• plasma generated currents
• ion chamber currents

Specifications

RANGE RESOLUTION ACCURACY
(1 Year)*
18°–p;28°C
±(%rdg+offset) ANALOG OUTPUT
Rise Time
(10%-90%)
Analog Filter
OFF ON

2nA 10fA 0.3+ 500fA 12ms 70ms

20nA 100fA 0.2+ 3pA 4ms 17ms

200nA 1pA 0.15+ 20pA 800µs 4ms

2µA 10pA 0.15+ 200pA 380µs 2ms

20µA 100pA 0.1+ 2nA 160µs 370µs

200µA 1nA 0.1+ 20nA 160µs 370µs

2mA 10nA 0.1+ 200nA 160µs 370µs

MAXIMUM READING RATES(readings/second):

INTEGRATION
SETTING RESOLUTION EXTERNAL
CONTINUOUS
INTO
DATA STORE TRIGGERED
TRIGGER
INTO
DATA STORE VIA
IEEE-488 BUS

FAST 4 1/2-Digit 100 180 16

LINE 60Hz 5 1/2-Digit 40 44 14

LINE 50Hz 5 1/2-Digit 33 38 12

VOLTAGE SOURCE (487 ONLY):

RANGE
(maximum
value) STEP
SIZE
(typical) ACCURACY
(1 Year)
18° - 28°C
±(%setting+offset) NOISE
(p-p)
0.1-10Hz TEMPERATURE
COEFFICIENT
0°-18°C &
28°-50°C

±505.00 V 10mV 0.15 + 40mV <1.5 mV 80 ppm +2 mV/°C

±50.500 V 1mV 0.1 + 4mV <150 µV 50 ppm +200µV/°C

Ordering Information

Keithley 486 Analog Picammeter

Keithley 486 Product Details