REI-37-E-P-220 Digital Indicator – Electronic Display Unit

Economy series digital control solution for simple applications.

Power supply: 220V AC (optional 24V available)
Output type: 1 relay output (settable)
Measurement type: 0-10V, 4-20mA (0-20mA)
Dimensions: 37x72 mm (refer to product image for panel cut-out)

This product is an older model maintained only for spare parts or replacement purposes. For new projects, please refer to the recommended alternatives listed below.

It is a general-purpose digital indicator capable of reading and calibrating various analog signals. Supported inputs include:

• (0-10V): Typically used for analog outputs of speed controllers. Measures all 0-10V DC signals and can be directly connected to inverter potentiometers.
• (0-1V): Suitable for use as a load-cell or humidity display. Very low voltage signals can be read here. Note: load-cells cannot be directly connected.
• (0-20mA / 4-20mA): Used to read current signals from inverters and other sensors.

Highlighted features:
- Compatible with universal analog sensors (4-20mA, 0-10V)
- Adjustable display scale and decimal position
- 12mm 4-digit LED with special icons
- IP65 front panel protection
- Fixed terminal mounting and panel clip lock

Important note: This model does not include a sensor power output. If your application requires +VDC supply (e.g. pressure transmitters), you must use an external power supply or upgrade to a DEIP Series model.

Optional features and variations (model dependent):
- LCD or multi-digit display options
- Memory for lowest/highest value
- Calibrated 0-10V analog output
- Optional RS485 Modbus communication
- Programmable relay output
- Built-in power supply
- Dual analog input mode
- USB data logging
- PC connectivity

Model comparisons:
- DEIP-37-R-B (24V AC/DC supply)
- DEIP-44-R-A (48x48mm)
- DEIP-77-R-A (72x72mm)
- DGI Series for dual display + 2 relays

Editor's note:
This model has been discontinued. For better resolution and ergonomics, the DEIP Series has replaced it. New models have improved keypads, more durable casings, and visually enhanced 4-digit displays. (Personal recommendation)

WARNING Installation of DERELL REI indicators must be performed by qualified technical personnel. All installations must comply with the applicable directives such as 2006/42/EC. Otomasyon AVM is not responsible for any damage or warranty voids resulting from improper installations. For support, contact support@otomasyonavm.com.