PalmSens4 PalmSens3 EmStat3
EmStat3 Blue
MultiEmStat3
EmStat3 4WE
EmStat3 MUX
EmStat3+
EmStat3+ Blue
MultiEmStat3+
General
dc-potential range ± 5 V or
± 10 V
± 5 V ± 3 V ± 4 V
compliance voltage ± 10 V ±8 V ±5 V ±8 V
maximum current ± 30 mA ± 30 mA ± 20 mA ± 100 mA
Potentiostat (controlled potential mode)
applied dc-potential
resolution
75 µV 150 µV 100 µV 125 µV
applied potential
accuracy
≤ 0.1%
< 1 mV offset
≤ 0.2 %
< 2 mV offset
≤ 0.2 %
< 2 mV offset
≤ 0.2 %
< 3 mV offset
current ranges 100 pA to 10 mA
(9 ranges)
100 pA to 10 mA
(9 ranges)
1 nA to 10 mA
(8 ranges)
1 nA to 100 mA
(9 ranges)
current accuracy ≤ 0.1 % (FSR) ≤ 0.2 % (FSR) ≤ 0.5 %
(FSR)
≤ 0.5 %
(FSR)
measured current
resolution
0.006% of current range (5 fA on 100 pA range) 0.01% of current range 0.1% of current range 0.1% of current range
max. scan rate 500 V/s
with 10 mV step
500 V/s
with 5 mV step
5 V/s
with 5 mV step
5 V/s
with 5 mV step
Galvanostat (controlled current mode)
current ranges 1 nA to 10 mA (8 ranges) 1 µA to 10 mA (5 ranges) N/A N/A
applied dc-current
resolution
0.005 % of applied current range 0.01 % of applied current range N/A N/A
measured dc-potential
resolution
75 μV at ±10 V
7.5 μV at ±1 V
0.75 μV at ±0.1 V
150 µV 100 µV 125 µV
FRA / EIS (impedance measurements)
frequency range 10 µHz to
100 kHz
or 1 MHz
100 µHz to
50 kHz
 N/A  N/A
ac-amplitude range 1 mV to
0.25 V (rms)
1 mV to
0.25 V (rms)
 N/A  N/A
Electrometer
electrometer amplifier input > 1 TΩ
// 10 pF
> 100 Gohm // 4 pF > 100 Gohm // 4 pF > 100 Gohm // 4 pF
bandwidth 1 MHz 700 kHz 35 kHz 35 kHz
Other
internal Bluetooth radio  NO
(EmStat3 Blue)

(EmStat3+ Blue)
internal storage  4 GB NO NO NO

 

Which EmStat instrument is suitable for me?

EmStat is available as single channel potentiostat. The more advanced EmStat Blue is wireless by means of its integrated Bluetooth radio and battery and has an auxiliary port for connecting extensions.

EmStat is also available combined with a multiplexer, as a polypotentiostat, or as multichannel potentiostat. The differences between these types of devices is explained here.

The EmStat and multiplexer boards are also available as OEM potentiostat for implementing EmStats in your device, e.g. in an e-QCM or e-SPR instrument.