Description
E-90 Series Digital Indicating Controllers are designed with new generation micro-controllers for on/off and PID control. They feature a 96x96 mm dimension, conforming to IEC/TR 60668 standards. The controllers have a 4-digit LED display with a range from -1999 to +9999, configurable universal inputs (T/C, R/T, mA) with 16-bit resolution, and low calibration drifts under environmental conditions. These controllers are used across various industries for measuring and controlling parameters like temperature, pressure, and more.

Standard Working Limits
The controllers operate with an accuracy class of 0.5, display resolution of 1/9999, and a 4-digit LED display. They support A/D conversion at 16-bit and a reading speed of 2 readings per second. The input resistance for T/C, mV is 1 MΩ, and for mA, it is 5 Ω. They have noise suppression of 20 dB at 50 Hz, an operating temperature range of -10 to 55°C, and a temperature compensation range of 0 to 50°C. Power supply options include 220 V AC and 24 V AC, with a maximum power consumption of 2.5 W.

Technical Specifications
The controllers feature relay outputs with NA contact at 250 V AC 5 A, input signals for T/C, R/T, mA, and sensors like thermocouples and resistance thermometers. Memory is stored in EEPROM with a maximum of 105 writings, and the weight is 495 grams. They conform to DIN 43710 standards and IEC 60584-1.

Features
The controllers are general-purpose and configurable according to application needs. They comply with the European Low Voltage Directive 2006/95/EC and EMC standard TS EN 61326.

Dimensions
The panel cut-out dimensions are 92 x 92 mm.

Ordering Guide
Standard features include various relay outputs and input types such as Fe-Const (J), NiCr-Ni (K), Pt10Rh-Pt (S), and more. Analog outputs and power supply options are also specified. Control forms include On/Off and PID, with adjustable parameters like dead band, proportional band, integral time, derivative time, and cycle time.