Description
Seametrics TempHion Water Quality Sensor with Datalogging is a microprocessor-based submersible sensor with built-in data logging. The internal processor in the TempHion allows for easy calibration, using the calibration utilities in Aqua4Plus. Once calibrated, this calibration data is stored in non-volatile memory within the Smart Sensor. When data is collected, this calibration information is applied to the data, resulting in highly accurate readings at a wide range of temperatures.
The temptation is powered internally with two replaceable AA batteries. Alternately it can be powered with an external auxiliary power supply for data-intensive applications. The unit is programmed using our easy-to-use Aqua4Plus control software. Once programmed the unit will measure and collect data at a variety of time intervals.
Several TempHions, or a combination of TempHions and other Seametrics Smart Sensors, can be networked together and controlled directly from a single computer. While most will use the TempHion with our free, easy-to-use Aqua4Plus software, it is by no means limited to that software. You can use your own Modbus® RTU or SDI-12 software or logging equipment to read measurements, thus tying into your existing telemetry and control systems.
Seametrics TempHion Feature
- Easy-to-use in-field calibration utilities
- 316 stainless steel, fluoropolymer, acetal, and PTFE construction
- Solution ground for excellent noise protection
- Operates on low power
- Long-term sensor stability
- Measures pH, ORP, and temperature
- RS485 network
- 200,000+ records stored in non-volatile memory
- Dual protocol (Modbus® and SDI-12)
- Narrow 0.75″ diameter, 17.625″ length
- Available cableless or with a variety of cable options—polyethylene, polyurethane, or FEP
- Easy export to spreadsheets and databases
Application
- Single- or multi-well tracer tests
- saltwater intrusion tracking
- Tidal influence studies
- Wastewater treatment discharge
- pH monitoring
Specification
| Housing & Cable | Weight | 0.8 lb. (0.4 kg) | |||
| Body Material | Acetal & 316 stainless or titanium | ||||
| Wire Seal Material | Fluoropolymer and PTFE | ||||
| Cable | Submersible: polyurethane, polyethylene, or ETFE (4 lb./100 ft., 1.8 kg/30 m) | ||||
| Desiccant | 1-3 mm indicating silica gel | ||||
| Field Connector | Standard | ||||
| Temperature | Operating Range | 0 ̊ to 55 ̊C (32 ̊ to 131 ̊F) | |||
| Storage Range | Without batteries: -40 ̊ to 80 ̊C (-40 ̊ to 176 ̊F) | ||||
| Power | Internal Battery | Two replaceable lithium ‘AA’ batteries – Battery life: 12 months at 15 min. polling interval (may vary do to environmental factors) | |||
| Auxiliary | 12 Vdc – Nominal, 9-15 Vdc – range | ||||
| Communication | Modbus® | RS485 Modbus® RTU, output=32bit IEEE floating point | |||
| SDI-12 | SDI-12 (ver. 1.3) – ASCII | ||||
| Logging | Memory | 4MB – 200,000 records | |||
| Logging Types | Variable, user-defined, profiled | ||||
| Logging Rates | 2x/sec maximum, no minimum | ||||
| Baud Rates | 9600, 19200, 38400 | ||||
| Software | Complimentary Aqua4Plus 2.0 | ||||
| Networking | 32 available addresses per junction (Address range: 1 to 255) | ||||
| File Formats | .a4d and .csv (also .xls in Windows 8 and earlier) | ||||
| Output Channels | Temperature | pH | ORP | Bromide | |
| Element | 30K ohm thermistor, Epoxy bead/external housing | Glass combination electrode | Platinum ring | Ag/AgCl solid-state electrode (Ion electrode method) | |
| Accuracy | ±0.2 ̊C | ±0.2 pH units, 0.1% mV value (typical) | 0.1 mVH, 0.1% mV value (typical) | ±5.0% of measured value (typical) | |
| Resolution | 0.1 ̊C | 0.01 pH units | 0.01 mVH units | 0.1 ppm | |
| Units | Celsius, Fahrenheit, Kelvin | pH, mV | Eh, mV | ppm, mV | |
| Range | 0 ̊ to 55 ̊C (32 ̊ to 131 ̊F) | 0-14 pH units / -538 to 260 mV | ± 1200 mV | 0–10,000 ppm | |
| Compensated | — | 0 ̊ to 40 ̊C (32 ̊ to 104 ̊F) | 0 ̊ to 40 ̊C (32 ̊ to 104 ̊F) | Isopotential point characterization | |
| Calibration | — | One or two-point calibration w/ pH buffers (4 & 7 or 7 & 10) | EH 1 pt. calibration | One or two-point calibration w/ ionic strength adjustment | |
| Reference Solution | Potassium Nitrate – (KNO3) | Potassium Nitrate – (KNO3) | Potassium Nitrate – (KNO3) | ||
| Reference | Ag/AgCl solid-state electrode, capillary liquid junction, TempHion™ reference solution | ||||
| Maximum Depth | pH/ORP: 700 ft (210 m) / 300 psi, ISE: 230 ft (70 m)/100 psi | ||||
| Environmental | IP68, NEMA 6P | ||||
*Specifications subject to change. Please consult our website for the most current data (seametrics.com). Modbus is a registered trademark of Schneider Electric.
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