Electrode Signal Amplifiers

Electrode Signal Amplifiers
Electrode Signal Amplifiers
Amplify mV signals from Ion-selective, ORP and pH electrodes to permit longer distance
between electrodes and Data Acquisition Systems,
e.g. Computer interface, Data Logger, Display, Process Controller, etc.
We offer 3 types of Electrode Signal Amplifiers:
Signal Amplifier Specifications
Type
Input
Output
Power
Supply
Max.
Distance
Isolated
mV, 1:1 , 1:5 1
Batter
(3 Year)
50 meter
No
TRA-IS1-B
pH / ORP / Ion (mV)
LAB-EA4-C
pH / ORP / Ion (mV)
mV, 1:2
2
12 V DC
50 meter
No
LAB-EA4-CI
pH / ORP / Ion (mV)
mV, 1:2
2
12 V DC
50 meter
Yes
Electrode
1x pH/ORP/Ion
electrode
4x pH/ORP/Ion
electrode
4x pH/ORP/Ion
electrode
End User
Price
(GBP)
Exc. VAT
90.00
260.00
350.00
TRA-IS1-B
Battery Powered Amplifier
for pH / ORP / Ion
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Dimensions: 100 x 70 x 50 mm plus 15 mm Flanges
Mounting: 4 Drill holes with 5 mm Diameter on both
flanges
Enclosure: ABS, Protection Class: IP 52 (NEMA 2/3).
Net Weight: 165 g (Including Batteries and BNC Caps)
Connectors:
One BNC Socket (50 Ohm type ) for Electrode signal
Input;
One 2mm socket for external Reference Electrode
One BNC Socket (50 Ohm type) for Electrode Output.
Power Supply: 2 Li-Mn Batteries(CR2032) last for 3
years.
Input Impedance: typical 1 Tera Ohm (10 exp 12 Ohm).
Input Bias Current: typical 0.1 pA (10 exp -13).
Load Resistance: must be 250 kOhm or higher.
Transfer Characteristic: 2 modes
On-board Jumper settings:
1:1 - when the Jumper Jp1 is Open, the Input mV range and
the Output mV range are ±2000 mV.
1:5 - when Jumper Jp1 is Closed, the Input mV range is ±400
mV, and the Output range is ±2000 mV.
London, U.K.
www.nico2000.net
email: sales@nico2000.net
Tel: +44 (0) 20 8422 6779
4-Channel Amplifier
LAB-EA4-C and LAB-EA4-CI
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Fig. 2: LAB-EA4-C. 4-Channel Electrode Amplifier for
pH, ORP and Ion-Selective Electrodes
Fig.3: Analogue Signal Output and DC Power Input.
Fig.4: LAB-EA4-CI, 4-Channel Electrode Amplifier for
pH, ORP and Ion-Selective Electrodes with completely
isolated channels.
London, U.K.
www.nico2000.net
Input Channels: 4 x pH/ORP/ISE via BNC Connectors
Output: ± Voltage via a 25-way sub-D Connector
(Fig.3)
Transfer Function: ±1500 mV input gives ±3000 mV
Output(1:2 transfer)
Enclosure: ABS, Dimensions: 190 x 135 x 40 mm, IP
60
Power Supply: 12 V DC, stabilised, 300 mA
Isolation:
LAB-EA4-C: (FIg.2)
•Non-isolated, Common Ground for all 4 Channels
Inputs and Outputs.
All BNC casings and 2-mm Reference sockets are
connected
•It is suitable when measuring with up to 4 electrodes
(e.g. pH, ORP, Ion-Selective) in one vessel and using
one Reference System (e.g. of the pH electrode)
•It is also suitable when measuring in up to 4 separate
vessels (e.g. Glass or Plastic beakers) where the
solutions have no electric connection.
•If there is a risk of electrical "Ground Loops" please
use the LAB-EA4-CI Version, where the 4 channels are
"Galvanically Isolated" from each other
LAB-EA4-CI:(Fig.4)
•4 High-quality Electrode Amplifier Channels with
complete Isolation.
•Each Channel has its own GND which is not
connected to the GNDs of the other Channels. Thus,
Electrical "Ground Loops" are avoided as the 4
channels are "Galvanically Isolated" from each other.
•The Input Ground of each channel is connected to the
Output Ground of each channel, when using a Data
Acquisition System, use it in "Differential Input" or
"Isolated Inputs" Mode to get the best results in respect
of interference and signal noise.
•It is suitable for measuring up to 4 electrodes (e.g pH,
ORP, Ion-Selective) in 4 separate vessels or up to 4
electrodes in one vessel.
email: sales@nico2000.net
Tel: +44 (0) 20 8422 6779
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