REI-37-S-220 Digital Indicator - Electronic Display

Designed for economic series applications that require a basic digital display.

Supply Voltage: 220V AC (24V option available)
Output Type: No output, display only
Measurement Type: 0-10V, 4-20mA (also 0-20mA)
Panel Size: 37 x 72 mm. Cutout dimensions are provided in the product image.

This model is discontinued and only kept for spare use.

It is a general-purpose electronic display device that allows you to read and calibrate certain analog signals. Supported signals:

- 4-20mA or 0-10V universal sensor compatibility
- Adjustable scale for sensor value display
- Configurable decimal point
- LED display with special icons (12mm 4-digit)
- IP65 protected front panel against dust and moisture
- Fixed terminal installation
- Secured with clip fastening on the panel cutout

* (0-10V): Typically used for connecting to analog outputs of speed controllers. Measures all 0-10V DC voltages. Can connect directly to inverter potentiometer terminals.

* (0-1V): Can be used as load-cell or humidity indicator. Capable of reading very low voltages.

* (0-20mA): Measures analog outputs from inverters and other sensors.

* (4-20mA): Standard current input reading.

Useful for displaying machine values such as speed, current, or torque from analog outputs of AC drives. Helpful especially when the operator panel is not accessible.

This product cannot power sensors such as pressure transmitters directly without an external power supply. For models with internal sensor supply, check the DEIP series.

Optional Features:
- 3, 4, 6-digit or LCD screen options
- Decimal point configuration
- Memory for storing min/max values

Depending on model variations:
- Calibrated 0-10V analog output
- RS485 Modbus communication (optional)
- Programmable relay output
- Internal power supply for sensor
- Dual mode (dual analog input)
- Direct PC connection
- USB data logging
- Custom LCD labels (bar, rpm etc.)

Alternative Models:
- DEIP-37-R-B (24V AC/DC version)
- DEIP-44-R-A (48x48mm size)
- DEIP-77-R-A (72x72mm size)
- DGI Series (dual relay + dual display)

Note: These devices are for monitoring speed in speed controllers, not for adjusting it. For speed setting, see electronic potentiometer.

Editor's Note: This product line has been discontinued and replaced by the higher resolution DEIP series. For new panels, please consider the DGI or DEIP series. The new series addresses previous issues such as hard buttons and weak casing. The display has been upgraded to 4 digits, with a more aesthetic appearance and improved design. (Personal opinion)

Important Notice: All installation procedures of the DERELL REI series must be performed by certified technicians only. Installations must comply with the 2006/42/EC directive. Otomasyon AVM does not assume any liability for improper installations or violations of local/international standards. Warranty is void if instructions by DERELL Electronics are not followed. For detailed support, please contact support@otomasyonavm.com.