Reading fluid temperature directly, this immersion temperature sensor puts a 10,000 ohm Type II thermistor on a 1" probe that enters the line without a well. Removing the well removes its thermal lag, so the reading tracks fast changes that a welled sensor smooths away. The trade is that the line has to be drained to service the probe, which makes this the choice where response time matters more than access.
Reading fluid temperature directly, this immersion temperature sensor puts a 10,000 ohm Type II thermistor on a 1" probe that enters the line without a well. Removing the well removes its thermal lag, so the reading tracks fast changes that a welled sensor smooths away. The trade is that the line has to be drained to service the probe, which makes this the choice where response time matters more than access.
The ACI Thermistor Immersion Series places the sensing element directly in the process, with no thermowell between the fluid and the thermistor. Removing the well removes its thermal lag, so the reading follows a changing process instead of trailing it. Probes are offered in several insertion lengths to suit both small-bore pipework and larger lines, with a galvanized or plastic enclosure housing the terminations.
Features
Applications
| Probe Diameter | 0.25" (6.35 mm) |
| Probe Insertion Length | 1.0" (25.4 mm) |
| Probe Material | 304 stainless steel |
| Sensor Type | Thermistor |
| Lead Length | 14" (35.6 cm) |
| Conductor Size | 0.65 mm (22 AWG) |
| Number of Sensing Points | One |
| Number of Wires | Two, non-polarity sensitive |
| Process Thread Size | 1/2" NPT male |
| Sensor Curve | Non-linear, NTC (negative temperature coefficient) |
| Operating Humidity Range | 10% to 95% RH, non-condensing |
| Sensor Operating Temperature Range | -40 to 150 °C (-40 to 302 °F) |
| Conductor Material | Silver plated copper |
| Enclosure Material | Galvanized steel |
| Product Dimensions (L x W x H) | 4.50 x 4.15 x 2.70" (114.3 x 105.4 x 68.6 mm) |
| Product Weight | 0.62 lbs (283 g) |
| Nominal Resistance | 10 kΩ at 25 °C (77 °F), Type II |
| Probe Diameter | 0.25" (6.35 mm) |
| Probe Insertion Length | 1.0" (25.4 mm) |
| Probe Material | 304 stainless steel |
| Sensor Type | Thermistor |
| Lead Length | 14" (35.6 cm) |
| Conductor Size | 0.65 mm (22 AWG) |
| Number of Sensing Points | One |
| Number of Wires | Two, non-polarity sensitive |
| Process Thread Size | 1/2" NPT male |
| Sensor Curve | Non-linear, NTC (negative temperature coefficient) |
| Operating Humidity Range | 10% to 95% RH, non-condensing |
| Sensor Operating Temperature Range | -40 to 150 °C (-40 to 302 °F) |
| Conductor Material | Silver plated copper |
| Enclosure Material | Galvanized steel |
| Product Dimensions (L x W x H) | 4.50 x 4.15 x 2.70" (114.3 x 105.4 x 68.6 mm) |
| Product Weight | 0.62 lbs (283 g) |
| Nominal Resistance | 10 kΩ at 25 °C (77 °F), Type II |
