2132I

What does this unit do in a control panel?

It is a compact temperature/process indicator that measures a sensor or analogue signal and shows the process value on a 4-digit LED display. Depending on configuration, it can also provide alarm indication and physical alarm outputs.

What type of display does it use?

It uses a 4-digit green LED display with 10 mm high characters for clear visibility on a panel door.

What power supply does it require?

This version is the low-voltage supply type and is designed for 24 V AC/DC operation (typically within the 20–29 V range). Power consumption is up to 5 W.

Which sensor inputs can it accept?

It supports common thermocouples (such as J, K, T, L, N, R, S, B and others), Pt100 RTD input, and scalable linear process inputs (mV, mA; and 0–10 V with the appropriate input adaptor). The exact input fitted is determined by the side label coding/configuration.

Can it be used for process signals like 4–20 mA?

Yes. When configured for a linear current input, it can display scalable values for 4–20 mA (and 0–20 mA). Scaling allows you to map the input signal to engineering units shown on the display.

Does it provide alarms, and how many?

It has three internal alarm setpoints (often referred to as “soft” alarms). These can trigger front-panel indication and can be assigned to the relay output and/or the logic output (if fitted).

What alarm types are available?

Common alarm behaviours include high and low alarms, plus deviation-style alarms (such as deviation band, deviation high, and deviation low), depending on configuration settings.

How do I acknowledge an alarm from the front keypad?

Alarms can be acknowledged using a key combination on the front keypad, and the OP indicators change from flashing (new alarm) to steady (acknowledged but still true) when applicable.

What outputs are available on the unit?

Depending on the build, it may include an isolated alarm relay output and a logic I/O point. The logic I/O can be set as an alarm output or as an alarm acknowledge/reset input (when fitted).

What are the relay and logic output electrical ratings?

The relay output (isolated) is rated up to 264 Vac at 2 A resistive (minimum 12 Vdc at 100 mA). The logic I/O provides approximately 9 Vdc at around 12–18 mA and is not isolated from the sensor input.

What is the accuracy of the measurement?

Typical calibration accuracy is ±1 °C or ±0.25% of reading (whichever is greater), subject to correct sensor selection, wiring practice, and stable installation conditions.

Can I add input filtering to stabilise a noisy signal?

Yes. An input filter time constant can be set from OFF up to 999.9 seconds to help smooth fluctuating readings where required.

Can the reading be offset to match a reference?

Yes. User calibration options allow a fixed offset across the range and also a two-point adjustment method to align the displayed value to reference points.

What panel cut-out size is required for installation?

For the 2132i size, the typical panel cut-out is 22.2 mm by 45 mm. The unit is designed for panel mounting using retaining clips.

What level of front-panel sealing does it provide?

When correctly installed in a suitable panel cut-out with the sealing maintained, the front panel is rated to IP65 (and NEMA 4X equivalent).

What wire sizes can be used on the terminals?

The screw terminals typically accept copper conductors in the 0.5 to 1.5 mm² range (approximately 16 to 22 AWG).

Is the logic I/O isolated from the sensor input?

No. The logic I/O is electrically connected to the sensor input, which is important to consider when planning wiring, earthing, and how the logic point is interfaced to other equipment.

Can the display units be changed (°C/°F/K or none)?

Yes. Display units can be configured for Celsius, Fahrenheit, Kelvin, or no units for linear process inputs, depending on how the input is set up.

How can I confirm which options are fitted on a specific unit?

Check the side label coding on the instrument body to identify the configured supply type, input type, and whether relay/logic I/O options are fitted. This is the most reliable way to match a unit to an application; you may also reference it internally as Eurotherm 2132i.