Description:
The pHionics STs Series ORP is a low maintenance, dual-output sensor that pairs with a datalogger or RTU for real-time water quality monitoring. A narrow diameter allows the STs Series to go where other sensors cannot while a durable, chemical-resistant housing ensures many years in-use.
All parts, including the cable, are easily replaceable without tools using pHionics patented pHiConn System, saving frustration and money.
Highlighted Features:
Specifications
| ORP Sensor | |
| Output | 4-20 mA |
| ORP (redox) Range | -1000 to +1000 mV |
| Operating Temperature | 0-70 |
| Pressure Range | 0-70 psi |
| Electrode Type | Platinum sensing element,silver/silver chloride gel-filled reference |
| Transmitter Type | 2-wire |
| Automatic Temperature Compensation | None |
| Isolation | 600 VDC |
| Power Supply Voltage | 8-40 VDC |
| Warm-up Time | 2 seconds |
| Response time | 95% < 20 seconds |
| Wetted Materials | 316 Stainless Steel, Delrin®, Viton, glass, epoxy |
| Length | 14.25 in (36.20 cm) |
| Width | 0.750 in (1.9 cm) maximum |
| Weight (No cable) | 0.50 lbs (0.227 kg) |
| Linearity | ± 4 mV |
| Accuracy | ± 4 mV* |
| Sensitivity | ± 2 mV |
| Repeatability | ± 10 mV |
| Temperature Sensor | |
| Output | 4-20 mA |
| Temperature Range | 0-50 |
| Accuracy | +/- 1 |
| Linearity | +/- 0.5 |
| Power Supply Voltage | 7-40 VDC |
| Cable | |
| Cable Material | Polyurethane |
| Type | 4 conductor, Kevlar® reinforced, water blocked, shielded, twisted-pair wiring |
| Maximum Distance | 3 miles |
| Resistance per 1000 ft (304.8 m) | 26 Ohms |
| Replaceable? | Yes |
*After proper calibration
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