pH Amp
The pH Amp is a dual front-end suitable for use with pH, ion-selective and potentiometric redox electrodes and is designed to work with a C Series Front End Interface or traditional PowerLab.
Overview
The pH Amp is a dual front-end suitable for use with pH, ion-selective and potentiometric redox electrodes and is designed to work with a C Series Front End Interface or traditional PowerLab. The unit is capable of measuring pH in the range 0-14, electrode voltages to 2.0 V and temperature in the range of 0 to 100 °C. It can also be used for temperature compensated measurements or as an independent temperature sensor. The unit is supplied with a RTD Temperature Probe.
Transducers and Accessories suitable for use with the pH Amp:
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Details and Tech Specs
Technical
pH Amplifier Section
- pH Amplifier: High impedance, electrometer type
- Amplification range: ±2 V down to ±200 µV full scale in 13 steps
Full Scale | Resolution |
|---|---|
±2 V | 1 mV |
±1 V | 500 µV |
±500 mV | 250 µV |
±200 mV | 100 µV |
±100 mV | 50 µV |
±50 mV | 25 µV |
±20 mV | 10 µV |
±10 mV | 5 µV |
±5 mV | 2.5 µV |
±2 mV | 1 µV |
±1 mV | 500 nV |
±500 µV | 250 nV |
±200 µV | 100 nV |
- Input impedance: 1013 Ω typical
- Amplifier noise: <1 µVrms (<4 µV p-p) with a bandwidth of DC- 10 Hz
- Maximum input: ±10 V
- Input connection type: Insulated BNC
- Low pass filter: 10 Hz (-3 dB frequency)
- Low pass filter accuracy: ±3.0 %
- Low pass filter type: Bessel (2 pole)
Temperature Amp Section
- Temperature probe type: RTD 100 Ω type (supplied with unit)
- Temperature range: ±100 °C
- Temperature accuracy: ±0.2 °C
- Amplifier output: 0 V @ 0 °C, 50 mV/ °C (factory set)
- Output ranges:
Range | Temperature | Resolution |
|---|---|---|
±10 V | ±200 °C | 0.1 °C |
±5 V | ±100 °C | 0.05 °C |
±2 V | ±40 °C | 0.02 °C |
±1 V | ±20 °C | 0.01 °C |
±500 mV | ±10 °C | 0.01 °C |
- Input connection: 3 pin mini-audio jack
Control Port
- I2C: Provides control and power
Physical Configuration
- Dimensions (h × w × d): 55 mm × 120 mm × 260 mm (2.2" × 4.7" × 10.2")
- Weight: 1.2 kg (~2.6 lb)
- Power consumption: ~1 W
- Operating temperature range: 0 to 35 °C, 0 to 90 % humidity (non-condensing)
ADInstruments reserves the right to alter these specifications at any time.
