Stanford SIM921 AC Resistance Bridge (1 mΩ - 100 MΩ)

Measurement:

Measurement type: 4 wire AC bridge

Number of inputs: 1

Resistance range: 1 mΩ to 100 MΩ

Time constant: 0.3 s to 300 s

Reading rate: 2 updates/s

Demodulator resolution: 32 bit

Accuracy (% reading + % range):

2 Ω to 200 kΩ: (0.05 % + 0.05 %) at an excitation of ≥30 µV and ≥3 nA

200 mΩ to 2 MΩ: ±(0.15 % + 0.15 %) at an excitation of ≥300 pA

Stability:

With autocal: (±0.001 % of reading)/°C

Without autocal: (±0.02 % of reading)/°C

Max. lead resistance: 100 Ω + 25 % range

Input impedance: >10 GΩ (typ.)

Source:

Type: Sinusoid, constant current or voltage

Source frequency: 2 Hz to 60 Hz

Excitation: 3 µV to 30 mV, 10 mA (max.)

Max. DC current: <3 µV/range

General:

Operating temperature: 0 °C to 40 °C (non-condensing)

Interface: Serial via SIM interface

Power: Power supplied by the SIM900 Mainframe, or optionally by a user-supplied DC power supply (±15 V and +5 V).

Dimensions: 3.0" × 3.6" × 7.0" (WHL)

Weight: 2.3 lbs.

Datasheet

Manual