4 DIGIT PROCESS INDICATOR-CONTROLLER
MODEL NUMBER : 121
Process Indicator-Controller with unique features to provide a precise control with Automatic PID tuning. Microcontroller based instrument with single 4-digit display for real time and set value. Unit accepts analog process inputs of various types. It can be scaled for both zero and span, to display in engineering units. The decimal point position is also selectable. Any process value can be programmed. Soft keys provided on front of the panel for easy setting with password protection.
Unit has 2 programmable relays with individual set-points and hysteresis. Unit offers 12V DC sensor supply output.
| PROCESS INPUT | 0-5V DC, 1-5V DC, 0-10V DC, 2-10V DC, 0-20mA, 4-20mA |
| CONTROL OUTPUT | Relays ( NO ) Contact: 5A @ 230V AC or SSR (Optional) |
| ALARM OUTPUT | Relays ( NO ) Contact: 5A @ 230V AC or SSR (Optional) |
| DISPLAY | 4 Digit 0.56” Seven Segment High Bright LED |
| DISPLAY RANGE | -1999 TO +9999 |
| DECIMAL POINT | Selectable (0, 0.0, 0.00, 0.000) |
| CONTROL MODE | ON/OFF with HEAT/COOL and Auto-tuned PID |
| CONTROL PERIOD | 0.5 – 30 Sec. |
| ALARM MODE | High Alarm and Deviation Alarm with Hysteresis |
| SENSOR EXCITATION | 12V DC ± 10 % for sensor supply |
| POWER SUPPLY | 230 V AC ± 15 % |
| INPUT SHIFT PARAMETER | -99.9 to +99.9 |
| INPUT FILTER | 1 to 30 Sec. |
| ENCLOSURE SIZE (mm) | 96X96X65, 72X72X65, 48X96X65 |
| AMBIENT TEMPERATURE | 0-60 °C |
| STORAGE TEMPERATURE | 0-70 °C |
| HUMIDITY | 0-95 % RH (non-condensing) |