Specification: |
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pH Input: |
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External Sensor Connector |
4 pin Switchcraft Plug (EN3C4M
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Weatherproof |
IP66 |
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Pinout |
1 pH Probe Positive |
2 pH Probe Negative |
3 Pt-100 A |
4 Pt-100 B |
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View from Front of Socket or Rear of Plug |
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Accuracy |
± 0.1pH |
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Resolution |
± 0.1pH |
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Pt-100 Input: |
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External Sensor Connector |
Same 4 pin Switchcraft Plug as pH
input |
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Pinout |
See pH |
1 pH Probe Positive |
2 pH Probe Negative |
3 Pt-100 A |
4 Pt-100 B |
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Accuracy |
± 1º C |
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Resolution |
± 0.5º C |
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Internal Temperature: |
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Sensor Type |
Thermister |
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Linear accuracy over range |
± 0.3º C (0º C to 70º C) |
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Repeatability |
± 0.1º C |
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Long term stability |
± 0.1º C |
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Logger: |
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Working Temperature |
-30º C to +70º C |
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Storage Temperature |
-30º C to +70º C |
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Sampling Rate |
1 second minimum |
10 hours maxium |
in 1 second intervals |
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Storage capacity |
522,240 samples logging pH only |
261,120 samples logging pH and Temperature |
362 days with 1 min logging interval, pH only |
4.9 years with 5 min logging interval, pH only |
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Alarms |
Two independent Alarms |
Triggered on any combination of six user configurable
Alarm Conditions |
Both alarms can be configured to send SMS messages |
Conditions can be setup to reset alarms |
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Start modes |
Start immediately |
Start on date/time |
Start on condition (eg pH > 6.2pH |
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Stop modes |
Stop when memory is full |
Stop on date/time |
Loop around (continues logging) |
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Logging Modes |
Each channel can be set to log any combination of: |
- Point readings
- Average reading
- Maximum reading
- Minimum reading
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Battery |
User Replaceable |
7.2V Lithium battery pack (must be ordered) |
One to Five years depending on usage. |
The data is retained in the case of battery failure. |
Battery Status Monitor in OmniLog Software |
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Download Time |
9min 30sec for Full Logger |
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Case material |
304 Stainless tube |
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Screw on end cap |
Plated brass |
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Weight |
148g |
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Size |
20mm diameter X 182mm long |
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Temperature Compensation |
Temperature compensation is performed within the logger so
temperature data does not have to be logged if it is not required. |
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Calibration |
The pH input is calibrated in the factory at 25º C with a
traceable calibrated voltage source.
Temperature compensation is then checked at 0º C, 50º C and 100º C. |