ChemScan MPX4
Manufacturer: In-Situ
Product: ChemScan MPX4
Model: MPX4
Class: MODBUS
Updated: 2025-10-06
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Registers
| # | Name | Unit | Description |
|---|---|---|---|
| 1 | Temperature | °C | |
| 2 | Pressure | psi | |
| 3 | Depth | ft | |
| 4 | Level, Depth to water | ft | |
| 5 | Level, Surface elevation | ft | |
| 9 | Actual conductivity | µS/cm | |
| 10 | Specific conductivity | µS/cm | |
| 11 | Resistivity | Ωcm | |
| 12 | Salinity | PSU | |
| 13 | Total dissolved solids | ppt | |
| 14 | Density of water | g/cm³ | |
| 16 | Barometric pressure | mmHg | |
| 17 | pH | pH | |
| 18 | pH mV | mV | |
| 19 | ORP | mV | |
| 20 | Dissolved Oxygen concentration | mg/L | |
| 21 | Dissolved Oxygen % saturation | % | |
| 24 | Chloride | mg/L | |
| 25 | Turbidity | NTU | |
| 30 | Oxygen partial pressure | torr | |
| 31 | Total suspended solids | mg/L | |
| 32 | External voltage | V | |
| 33 | Battery capacity | % | |
| 34 | Rhodamine WT concentration | µg/L | |
| 35 | Rhodamine WT fluorecence intensity | RFU | |
| 36 | Chloride mV | mV | |
| 37 | NO3 as N concentration | mg/L | |
| 39 | NH4 as N concenctration | mg/L | |
| 40 | NH4 mV | mV | |
| 41 | NH3 as N concentration | mg/L | |
| 42 | NH2 as N concentration | mg/L | |
| 48 | Eh | mh/L | |
| 49 | Velocity | µg/L | |
| 50 | Chlorophyll-a concentration | µg/L | |
| 51 | Chlorophyll-a fluorecensce intensity | RFU | |
| 54 | Blue Green Algae Phycocyanin concentration | µg/L | |
| 55 | Blue Green Algae Phycocyanin fluoresence intensity | RFU | |
| 58 | Blue Green Algae Phycocerythrin concentration | µg/L | |
| 59 | Blue Green Algae Phycocerythrin fluoresence intensity | RFU | |
| 60 | Device status | . | |
| 61 | Device-specific status | . |
Notes
Probe defaults to address 1, 19200/8E1 (note: even parity!) Connect: Green -> ezeio D0 Blue -> ezeio D1 Black -> ezeio 0V/gnd Red -> ezeio +12V