Picoammeter, current meter, for DC currents, pico amps

The SPECS Technologies Picoammeter

New femto High Frequency Upgrade!

100 fA resolution
Measures current from 100 fA to 2 mA
4 1/2 digit resolution
Analog output
Current source bias voltage +/-90 V
Optional remote control interface

The SPECS Technologies 4 ½-digit picoammeter allows DC current measurement from 100fA to 2mA with overranging on all ranges. The instrument features include zero adjustment, automatic polarity indication of the input current, a current monitor output, overvoltage protected input, and an optional remote control interface. A battery pack is provided to bias the current source to +/-90V.

General Specifications:

Current Range:	2 nA - 2 mA
Resolution:	100 fA
Input Voltage Burden:	< 200 µV on all current ranges
Display:	Digital panel meter with 4 ½-digit resolution
Display Reading Rate:	3/s
Ranging:	Manual or remote controlled (optional)
Overrange Indication:	Display flashes "0000"
Current Source Bias:	Push-button selectable: -90V, 0V, +90 V
Analog Output:	Scaled voltage output, 2V full scale on all ranges
Zero Adjustment:	Through two potentiometers on rear panel
Common Mode Voltage:	Maximum 90 V
Input Connector:	BNC on front panel
Input Protection:	Overvoltage and arc protected current input
Isolation:	Meter common to chassis: typically > 100 GOhm
Dimensions:	130 mm high x 110 mm wide x 170 mm deep
Weight:	1.5 kg
Power:	100-240V, 50-60Hz, 10VA

Remote Interface Specification (optional):

Remote Connector:	9-pin Dsub connector on rear panel
Input Signals:	3 TTL-signals for range selection
	1 TTL-signal for selecting local or remote control
Output Signals:	3 TTL-signals for reading the selected range
	1 analog signal for current monitoring (0-2V or 0-10V)

Instrument Accuracy:

Range	Max	Display	Accuracy (1 day)	Temp Coefficient	Analog
.	Range	Resolution	+-(%Reading + %Range) @ 25°C	+-(%Reading + %Range)/°C	Rise Time
pA	1999.9 pA	0.1pA	0.5 % + 0.05%	0.02% + 0.002%	100 ms
nA	199.99 nA	10 pA	0.1 % + 0.05%	0.002% + 0.002%	100 ms
uA	19.999 uA	1 nA	0.1 % + 0.05%	0.002% + 0.002%	10 ms
mA	1.9999 mA	100 nA	0.1 % + 0.05%	0.002% + 0.002%	1 ms

Digital Panel Meter Accuracy: +/- 1 digit , temperature drift: 0.4 counts/°C
Analog Output Accuracy: 2V full scale on all ranges, accuracy 1% of reading + 2mV offset

SPECS Technologies Corporation
3318 Plantation Dr.
Sarasota, Florida 34231
Phone: (941) 362-4877
Fax: (941) 364-9706
support@specs.com