Product Overview
The Aplisens AT-3 Head-Mounted Temperature Transmitter converts a Pt100 RTD (2- or 3-wire) into a 2-wire 4–20 mA output and supports programmable measuring ranges. For accurate selection and pricing, please call 865-900-8844 or email KSmith@CPSCalibrations.com.
The Aplisens AT-3 is a compact head-mounted temperature transmitter designed for use inside a sensor head. It converts the resistance of a Pt100 temperature sensor (2- or 3-wire) into a standard 4–20 mA current loop output. The AT-3 includes sensor non-linearity compensation and provides an LED indicator for failure signalization. The unit can be ordered factory configured or reconfigured by the user using a PC + USB-AT-3 converter and software.
- Sensor input: Pt100 RTD (2 or 3 wires)
- Output: 2-wire 4–20 mA current loop
- Programmable: measuring range and sensor-break behavior
- Diagnostics: LED failure indication
- Use case: head mounting inside temperature sensor assemblies
Need factory setup? Tell us your Pt100 wiring (2 or 3 wire) and your temperature range and we’ll quote the right configuration.
| Feature | Details |
|---|---|
| Model | AT-3 Head-Mounted Temperature Transmitter |
| Sensor Type | Pt100 (2 or 3 wires) |
| Sensor Range | -195…+845°C (18…390 Ω) |
| Minimum Span | 25°C |
| Output Signal | 2-wire 4–20 mA current loop |
| Power Supply (UZ) | 10…30 V DC |
| Load Resistance (RO) | RO ≤ (UZ – 10 V) / 20 mA |
| Sensor Break Alarm (configurable) | 3.9 mA or 21.5 mA (factory setting: 21.5 mA) |
| Measurement Accuracy | ±0.2°C ±0.05% of reading |
| Response Time | 1 s |
| Ambient Operating Range | -40…+85°C |
AT-3 supports compensation for 2-wire sensor resistance and configurable behavior if the sensor is broken.
AT-3 pricing depends on wiring and configuration. To quote correctly, we typically confirm:
| What We Need | Examples |
|---|---|
| Sensor Wiring | Pt100 2-wire or 3-wire |
| Measuring Range | Example: 0…100°C (minimum span 25°C) |
| Sensor Break Alarm | 3.9 mA or 21.5 mA |
Ordering format: AT-3 / Pt100 / __÷__°C / (2 or 3 wires)
Example: AT-3 / Pt100 / 0÷100°C / 2
Call 865-900-8844 or email KSmith@CPSCalibrations.com and we’ll quote it.
Need help confirming loop power, load resistance, or programming the range? Reach out and we’ll help.
