| Fig.
1: LAB-EA4-C, 4-Channel Electrode Amplifier for pH-, ORP- and Ion-Selective
Electrodes |
| |
| Fig.
2: Analogue Signal Output and DC Power Input. |
| |
| Fig.
3: LAB-EA4-CI, 4-Channel Electrode Amplifier for pH-, ORP- and Ion-Selective
Electrodes with completely isolated channels. |
| |
| Fig.
4: LAB-EA2-ICI, 2-Channel Electrode Amplifier for pH-, ORP- and
Ion-selective Electrode with complete Input / Output isolation. |
| |
| Fig.
5: Analogue Signal Output and DC Power Input. |
| |
| Fig.
6: LAB-EA2-S, 2-Channel Electrode Amplifier for pH-, ORP- and Ion-selective
Electrode with complete Input / Output isolation and Serial Data
Output. |
| |
| Fig.
7: Serial Data Output and DC Power Input. |
| |
| Fig.
8: LAB-DOT2-C, 1-Channel Dissolved Oxygen Amplifier for Galvanic
and Polarographic D.O. Sensors. |
| |
| Fig.
9: LAB-DOT2-CI, 1-Channel Dissolved Oxygen Amplifier for Galvanic
and Polarographic D.O. Sensors with complete Input / Output Isolation. |
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|
| 4-Channel
Electrode Amplifier |
| LAB-EA4-C
(See
Fig. 1 and Fig. 2) |
Input: pH-,
ORP-, Ion-selective Electrode via BNC Connectors.
Output:
±3 V via
a 25-way sub-D Connector.
Power
Supply: 6 to 9 V DC, 200 mA.
Number
of Channels: 4 Electrode Channels.
Isolation: Common Ground for all 4 Channels and Output.
Enclosure: Grey ABS, dimensions: 190 x 135 x 40 mm, IP 60.
Transfer Function: -1500 mV to +1500 mV input gives ±3
V Output.
For orders of 10+ other input ranges are available. |
| Top |
| 4-Channel
Electrode Amplifier with completely Isolated Channels |
| LAB-EA4-CI
(See
Fig. 3 and Fig. 2) |
Input: pH-,
ORP-, Ion-selective Electrode via BNC Connector.
Output:
±3 V via
a 25-way sub-D Connector.
Power
Supply: 6 to 9 V DC, 300 mA.
Number
of Channels: 4 Electrode Channels
Isolation:
Each Channel has its own
GND which is not connected to the GNDs of other Channels.
When a Data Acquisition System with Differential Inputs is used
Ground Loops are avoided and a good Noise suppression is achieved.
Enclosure:
Grey ABS, dimensions: 190 x 135 x 40 mm, IP 60.
Transfer Function: -1500 mV to +1500 mV input gives ±3
V Output.
For orders of 10+ other input ranges are available.
|
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| 2-Channel
Electrode Amplifier with completely
Isolated Channels and
complete Input / Output isolation |
| LAB-EA2-ICI
(See
Fig. 4 and Fig. 5) |
Input: pH-,
ORP-, Ion-selective Electrode via BNC Connector.
Output:
±3 V via
a 25-way sub-D Connector.
Power
Supply: 6 to 9 V DC, 300 mA.
Number
of Channels: 2 Electrode Channels.
Isolation:
Perfect
Channel Isolation and Perfect Input to Output Isolation. No Ground
Loops, no Interference, good Noise suppression.
Enclosure:
Grey ABS, dimensions: 160 x 95 x 36 mm, IP 60.
Transfer Function: -1500 mV to +1500 mV input gives ±3
V Output.
For orders of 10+ other input ranges are available. |
| Top |
| 2-Channel
Electrode Amplifier with Serial Data Output |
| LAB-EA2-S
(See
Fig. 6 and Fig. 7) |
Input: pH-,
ORP-, Ion-selective Electrode via BNC Connector.
Output:
Serial (RS232) Data in text format using ASCII
coded characters. Very simple Communication Protocol which makes
the implementation on the receiving side (Computer or PLC, etc.)
very easy.
An RS232 to USB converter can be supplied, which enables connection
to USB ports.
Power
Supply: 6 to 9 V DC, 200 mA.
Number
of Channels: 2 Electrode Channels.
Isolation:
The
2 Channels have a common ground. Data Output is isolated.
Enclosure:
Grey ABS, dimensions: 160 x 95 x 36 mm, IP 60.
Transfer Function: An Electrode signal range from -1000 mV
to +1000 mV
is transferred
into a 16 bit resolution Digital Signal. |
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| 1-Channel
Dissolved Oxygen Amplifier |
| LAB-DOT2-C
(See
Fig. 8 and Fig. 5) |
Input:
Galvanic or Polarographic
Dissolved Oxygen Sensors with a current from 50 nA to 20 µA
via a 4-way Mini-DIN connector.
D.O. Sensors with built-in Pt 1000 Temperature Sensors can also
be used.
Output:
0 to +3 V via
a 25-way sub-D Connector.
Power
Supply: Stabilized
12 V DC, 200 mA.
Number
of Channels: 1D.O. Channel plus 1Temperature Channel.
Isolation:
When the sample solution is not isolated from via a glass or plastic
vessel, the output ground can create ground loops. To avoid ground
loops provide isolation on the receiving side.(e.e differential
input of a data acquisition system).
Enclosure:
Grey ABS, dimensions: 160 x 95 x 36 mm, IP 60.
Transfer
Function: A
mode selector on the front panel allows the selection of Galvanic
or Polarographic D.O.Sensors. It allows also the selection of 1µA
full-scale range (1µA
corresponds to +3 V Output signal) or 20 µA
full-scale range (20
µA corresponds to
+3 V Output signal).
For the Temperature 0°C to 100°C
corresponds to 0 to +3 V Output. |
| Top |
| 1-Channel
Dissolved Oxygen Amplifier
with completely Isolation |
| LAB-DOT2-CI
(See
Fig. 9 and Fig. 5) |
Input:
Galvanic or Polarographic
Dissolved Oxygen Sensors with a current from 50 nA to 20 µA
via a 4-way Mini-DIN connector.
D.O. Sensors with built-in Pt 1000 Temperature Sensors can also
be used.
Output:
0 to +3 V via
a 25-way sub-D Connector.
Power
Supply: Stabilized
12 V DC, 200 mA.
Number
of Channels: 1D.O. Channel plus 1Temperature Channel.
Isolation:
Perfect
Input to Output Isolation. No Ground Loops, no Interference, good
Noise Suppression.
Enclosure:
Grey ABS, dimensions: 160 x 95 x 36 mm, IP 60.
Transfer
Function: A
mode selector on the front panel allows the selection of Galvanic
or Polarographic D.O.Sensors. It allows also the selection of 1µA
full-scale range (1µA
corresponds to +3 V Output signal) or 20 µA
full-scale range (20
µA corresponds to
+3 V Output signal).
For the Temperature 0°C to 100°C
corresponds to 0 to +3 V Output.
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