The EmStat USB powered potentiostats are the smallest research grade electrochemical interfaces available on the market.
The devices are general purpose potentiostats but are also highly suitable for embedded use in applications.
EmStat is a small and low cost potentiostat with research grade capabilities. It has eight current ranges from 1 nA to 100 mA (EmStat3+) full scale, with a minimum resolution of 1 pA. It provides the most relevant electroanalytical measurement techniques. Its price makes it a popular choice for educational purposes.
Standard included with an EmStat:
The following techniques are supported by EmStat.
These methods can all be used in their stripping modes which are applied for (ultra-) trace analysis.
EmStat (Blue) version: | 3 | 3+ |
---|---|---|
dc-potential range | ± 3.000 V | ± 4.000 V |
compliance voltage | ± 5 V | ± 8 V |
dc-potential resolution | 0.1 mV | 0.125 mV |
dc-potential accuracy | 0.2 % | 0.3 % |
current ranges | 1 nA to 10 mA (8 ranges) | 1 nA to 100 mA (9 ranges) |
maximum current | ± 20 mA typical and ± 15 mA minimum |
± 100 mA typical |
The current is measured using a zero resistance ammeter (ZRA).
current resolution | 0.1% of current range, 1 pA at lowest current range |
current accuracy (deviation) | ≤ 1 %of current range at 1 nA ≤ 0.5 % at 10 nA ≤ 0.2 % at 100 nA to 100 uA ≤ 0.5 % at 1 mA, 10 mA and 100 mA all with max. 0.2 % offset error |
electrometer amplifier input | > 100 Gohm // 4 pF |
rise time | approx. 100 μs |
sensor connection | shielded cable with circular connector for WE, RE, CE and Sense (EmStat3+ only) |
housing | anodized aluminium: 6.7 x 5.0 x 2.8 cm |
weight | 85 g |
power supply | USB 5 V, min. 130 mA (ES3) or 500 mA (ES3+) |
communication | mini USB |
auxiliary port present | no |
EmStat | Standard | Blue |
---|---|---|
size | 6.7 x 5.0 x 2.8 cm | 10.0 x 6.0 x 3.4 cm |
weight | 85 g | 250 g |
battery | no | yes |
communication | USB | USB + Bluetooth |
auxiliary port | no | yes |
sensor connector | LEMO | LEMO + SPE |
All our single channel instruments are shipped with PSTrace for Windows. PSTrace is also available in our download section.
For controlling EmStat using a phone or tablet download PStouch for Android. It is available for free in the Google Play store.