GIC 4421AD1 Liquid Level Controller
The GIC 4421AD1 Level Monitoring offers 240VAC, +/-20% supply voltage, Relay ON/OFF output control mode, -10°C to +60°C operating temperature, Base/DIN Rail mounting. Manufactured by GIC under the GIC Level Monitoring category, this model belongs to the GIC AD Series.
| Brand | GIC |
| Product Type | Liquid Level Controller |
| Model Number | 4421AD1 |
GIC 4421AD1 Liquid Level Controller – Technical Specifications
| Specification | Value |
|---|---|
| Supply Voltage | 240VAC, +/-20% |
| Frequency | 47Hz - 63Hz |
| Power Consumption (Max.) | 3VA |
| Conductive Sensor Probes | Stainless Steel SS304, 3 or 6 Nos |
| Sensor Length | 10 cm |
| Control Action Modes | Only Draining, Only Filling, Draining & Filling Simultaneous (One Tank or Two tanks) |
| Sensitivity | 1K to 200 K Ohm (Potentiometer adjustable) |
| Sensor Voltage & Current | 12 Vp-p, 100 Hz,< 1 mA |
| Sensor cable | Cable gauge (Min):0.5 sq mm Tin coated, Cable dia(Min):1.5mm, Max Cable Length-1000m (For set value < 50%), Max Cable Length-300m (For set value 100%), Max capacitances of wire- 80 nF / km |
| Settable ON & OFF Delay Time | 0.5 sec to 10 sec |
| Manual Start Switch | If Lower tank water level is greater than Low level & upper tank water level is below High level then by pressing a switch Relay can be switched ON manually. |
| Output Control Mode | Relay ON/OFF |
| Contact Ratings | 1 C/O,8A@250VAC,Resistive,Terminal 15-Pole, Terminal 16-NC,Terminal 18-NO |
| Utilization Category | AC-15: Rated Voltage (Ue):120/240V, Rated Current(Ie): 3.0/1.5A DC-13: Rated Voltage (Ue):24/125/250V, Rated Current(Ie): 2.0/0.22/0.1A |
| Electrical Life | 1 x 10^5 Operations |
| Mechanical Life | 1 x 10^7 Operations |
| LED Indication | GREEN LED: Power ON, RED LED : Relay Output ON |
| Operating Temperature | -10°C to +60°C |
| Storage Temperature | -10°C to +70°C |
| Relative Humidity | 5 to 95 % RH (non condensing) |
| Mounting | Base/DIN Rail |
| Dimension (W x H x D) (in mm) | 36 X 90 X 65 |
| Weight (unpacked) | 235 g (Controller), 45 g (Sensor) |
The GIC 4421AD1 Level Monitoring unit is built to deliver accurate and dependable control in liquid management applications. Operating on a 240VAC ±20% supply with low power consumption of just 3VA, this controller ensures energy efficiency while maintaining consistent operation. It supports stainless steel SS304 conductive sensor probes with adjustable sensitivity ranging from 1K to 200K Ohm, giving engineers flexibility to adapt to different liquid types and conductivity levels.
Equipped with control action modes such as draining, filling, or simultaneous control, the 4421AD1 allows precise operation for one or two tanks. The device features a manual start switch for operational convenience, ON/OFF delay settings between 0.5 to 10 seconds, and LED status indicators for clear monitoring. With a robust relay output rated at 8A @ 250VAC and electrical life of 10⁵ operations, it provides reliable switching for pumps and valves in demanding environments.
Applications of the GIC 4421AD1 Liquid Level Controller include water treatment plants, industrial storage tanks, process industries, and municipal supply systems. The controller withstands wide operating conditions with a temperature range of -10°C to +60°C and relative humidity up to 95%, ensuring durability in harsh sites. Its DIN rail mounting, compact 36 x 90 x 65 mm design, and flame-retardant enclosure make installation safe and convenient. Trusted for its accuracy and ruggedness, the GIC 4421AD1 is an excellent choice for industries that require continuous and reliable level monitoring to protect equipment and ensure process efficiency.
