ORM400 Picoammeter

Channel 1 input

Current input to picoammeter

Channel 2 input

Current input to picoammeter

Auxiliary input

Voltage input to ADC

Gain ranges

10¹⁰-10⁵ V/A

Maximum current Input

100µA

Frequency response

DC to 30Hz

Gain accuracy

+1%

Gain stability

200ppm/°C

Output stability

5ppm/°C to 500ppm/°C depending on sensitivity

Linearity

< 0.025% departure from linearity from zero to full scale

ADC resolution

4½ digit BCD (0 to 19999) i.e. > 14 bit resolution

ADC integration time

100ms

Auxiliary input range

0- 9.8V

Picoammeter input impedance

Virtual earth

Auxiliary input impedance

1 MΩ

Interface

USB

Control

Front panel via keypad/ USB

Front Panel Controlled Features

Input select, gain range select, auxiliary input select, integration and more.

Dimensions

Connector

BNC

Display

LCD