Lab Grade
- Measuring Range: 0 - 14 pH
- Working Temperature: 5 - 60 °C (41 - 150 °F)
- Body Material: plastic
- Refillable: no
- Theoretical slope: 97% @ 25 °C
- Zero Point: 7 ±0.25 pH at 25 °C
- Impedance: 250MΩ @ 25 °C
- Response Time: ~1 s
- Alkaline Error: < 15 mV @ 25 °C
- Connector: BNC
- Cable length: 1 m
- Dimensions:: 12x165 mm
Industrial pH Probe
- Measuring Range: 0 - 14 pH
- Working Temperature: 0 - 80 °C (32 - 176 °F)
- Body Material: plastic
- Refillable: no
- Theoretical slope: 98% @ 25 °C
- Zero Point: 7 ±0.5 pH at 25 °C
- Impedance: 200MΩ @ 25 °C
- Response Time: ~7 s
- Alkaline Error: < 15 mV @ 25 °C
- Connector: BNC
- Cable length: varies
The useful life of the probe is between 6 months to 1 year, dependant on use. Care must be taken to prevent breaking the probe. The glass bulb must always be submerged in liquid. For long-term storage, it should be kept in an appropriate storage solution.
Cleaning
Rinse with distilled water between uses to maintain the cleanliness of the probe.
For more thorough cleaning and/or reconditioning: Soak in a 4% HF for 5 seconds or HCl for 1-2 minutes. Then rinse with distilled water and store the probe in storage solution.
If the probe has been fouled:
Contaminant | Clean with |
---|---|
Metal oxides | soak in 1M HCl |
Grease | soap |
Hydrocarbons | alcohol, acetone |
Dyes | diluted HCl |