Description
The 56-TR-55I-MA is TandD’s compact current loop logger — it measures 4-20 mA signals from industrial sensors (pressure sensors, flow meters, level sensors, tank weighing) with an operational capacity of up to 40 mA. Built-in scale conversion allows you to display the meaningful value directly (l/min for flow, bar for pressure, cm for level) instead of raw mA.
Two logging modes: Instantaneous or Average. Optical data transfer via the 56-TR-50U2 USB holder.
Features
- 1 channel 4-20 mA current loop
- Operational up to 40 mA
- Scale conversion — display flow, pressure, or other quantity
- Two logging modes: Instantaneous or Average
- 16,000 data points
- 15 fixed logging intervals
- Alarm LED
- 4-year battery life
- Optical communication via 56-TR-50U2
Specification
| Measurement channel | Current loop 1 channel — 4-20 mA (operational up to 40 mA) |
|---|---|
| Logging capacity | 16,000 data points |
| Special function | Scale conversion |
| Communication | Optical (requires 56-TR-50U2) |
| Power supply | Lithium battery LS14250 |
| Battery life | approx. 4 years |
| Dimensions | 62 × 47 × 19 mm |
In the box
- 56-TR-55I-MA logger with mA input module
- 1 × Lithium battery LS14250
- Manual set with warranty certificate
Applications
The 56-TR-55I-MA is suitable for industrial process monitoring with 4-20 mA sensors: pressure monitoring, flow measurement, tank level, weighing, energy metering, and chemical dosing. For voltage signals, see the 56-TR-55I-V. For pulse counters, see the 56-TR-55I-P.

