High Current Interrupt

HCI

High current interrupt - Pulse Probe
The HCI (High Current Interrupt) extends the high-frequency EIS range of the ZENNIUM potentiostat and enables accurate measurement of series resistance for low ohmic objects (i.e., a fuel cell).

For low ohmic objects, EIS measurement in the high-frequency range is affected by the mutual induction resulting in diminished measurement accuracy. The HCI dynamic measurement technique suppresses the induction artefact at high frequencies and allows accurate series resistance measurement. 

For HCI measurement, a TR8M transient recorder, a calibrated Pulse Probe and an external device from the PP series or EL series is required besides a ZENNIUM potentiostat. The HCI software carries out online FFT to convert data from the time domain to frequency domain and creates a transient based impedance spectrum for the high-frequency end.
  • Extend EIS frequency range on fuel cells

Specifications

Max. sampling rate
40 MHz one channel,
20 MHz two channels
Channels
2
Max. input voltage
±2 V (external), ±2 V (internal)
Input impedance
10 kΩ
Resolution
12 bit
Power supply outlet
±15 VDC / 50 mA
Onboard sample memory
8 MWords
Trigger modes
level, slope, pre-trigger, source (internal/external)
Max. trigger level
±5 V, 60 Ω
Clock
max ±5 V
Configuration
by software
Max. sampling rate
40 MHz one channel,
20 MHz two channels
Channels
2
Max. input voltage
±2 V (external), ±2 V (internal)
Input impedance
10 kΩ
Resolution
12 bit
Power supply outlet
±15 VDC / 50 mA
Onboard sample memory
8 MWords
Trigger modes
level, slope, pre-trigger, source (internal/external)
Max. trigger level
±5 V, 60 Ω
Clock
max ±5 V
Configuration
by software

Downloads

Download the latest manual about Zahner HCI measurement...

Read more about high current interrupt technique in "Electrochemical Applications 2002"...

Download the latest manual about Zahner TR8M addon card...

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