The AC2626 probe uses an AD590 temperature transducer to provide a linear current output of 1 A/K, eliminating the need for external linearization circuitry. It is available in 4‑inch or 6‑inch stainless‑steel sheaths with a 3/16‑inch outer diameter and operates from a wide supply range of +4 V to +30 V.
Designed for both liquid and gas immersion, the probe offers high accuracy (up to ±0.4 °C) and excellent linearity. Recommended wiring practices include twisted‑pair and shielded cables for remote or noisy environments, and the probe can be interfaced directly with Analog Devices' AD2038 digital thermometer or AD2040 temperature indicator.
| Linear Current Output | 1 A/K |
|---|---|
| Temperature Range | -55 °C to +150 °C |
| Power Supply Range | +4 V to +30 V |
| Response Time (stirred water) | 2 seconds |
| Probe Diameter | 3/16 inch (4.76 mm) |
| Probe Lengths | 4 inch or 6 inch |
| Calibration Error @ +25 °C | up to ±5.0 °C (grade J) |
| Nonlinearity | up to ±1.5 °C (grade J) |
| Repeatability | ±0.1 °C |
| Long‑Term Drift | ±0.1 °C per month |
A minimum of 4 V DC must be present across the probe under all operating conditions.
Use twisted‑pair wiring, and shielded cable is desirable in severe noise environments.
The AD2038 6‑channel digital thermometer and the AD2040 3‑digit temperature indicator are designed to interface with the AC2626.
The probe is offered in standard 4‑inch or 6‑inch stainless‑steel lengths.