This document is the instruction manual of Anderson pressure sensor and level sensor, which introduces the detailed parameters, installation, connection and configuration methods of the sensor.
The Anderson Instrument L3 Pressure and Level Transmitter is designed for liquid measurement applications in the food and beverage industry. It utilizes an internal piezoelectric transducer and an RTD temperature element to measure pressure and temperature, converting these signals into industry-standard 4...20mA and Hart 7.0 outputs. The unit features an integral display and a four-button interface for reconfiguration of parameters such as tank geometry and product density.
| Measuring range | 0...0.4 bar / -1...2 bar / -1...7 bar / -1...35 bar |
|---|---|
| Turndown | max. 10:1 of upper range limit |
| Measurement accuracy | ≤ 0.10 % in calibrated measuring range |
| Temperature range (Process) | -18...110 °C (0...230 °F) |
| Auxiliary voltage | 18...36 V DC |
| Output Current loop | 4...20mA and Hart 7.0 |
| Protection class | IP 67 (with cable fitting) / NEMA 4X |
| Tightening torque | 27 Nm (20 ft-lbs) |
This unit accepts DC voltage only; connection to AC voltage can cause failure or risk of electrocution.
Anderson - Negele recommends a cable of 24 gauge, 4 conductor, shielded or equivalent.
The color codes are RED for Loop + and BLACK for Loop -.
The overpressure strength is a factor of 1.5 x nominal pressure of the measuring element.