Distance and Measurement Sensors
SICK GRF18S-F234LV Sensor
SICK GRF18S-F234LV optical level switch, part 1092958. Compact stainless probe for point-level monitoring, dry-run and leak protection.
Overview
The SICK GRF18S-F234LV (part number 1092958) is an optical level switch of the GRF18S series. The compact stainless probe detects the presence of liquid at the probe tip and reports it as a switching signal, providing simple point-level monitoring for tanks, pipes and machine cooling systems.
How It Works
The probe tip uses an optical principle: light is reflected internally as long as the tip is in air. When liquid reaches the tip, the refraction changes and less light returns to the receiver. The electronics evaluate this change and switch the output. The result is a precise point-level signal with no moving parts.
Key Features
- Optical point-level detection with no moving parts
- Compact stainless probe for tanks and pipes
- Reliable switching independent of liquid color and transparency
- Part number 1092958
- Fast response for fill and drain monitoring
- Simple integration with standard switching inputs
Typical Applications
- Fill-level monitoring in coolant and lubricant tanks
- Dry-run protection for pumps
- Leak detection in drip trays and collection tanks
- Point-level control on filling equipment
- Presence monitoring of process liquids in lines
Specifications
Attribute | Value |
|---|---|
Model | SICK GRF18S-F234LV |
Part number | 1092958 |
Detection principle | Optical point-level switch |
Family | GRF18S optical level switches |
Installation and Setup Notes
Install the probe so the tip sits exactly at the switching level to be monitored. Keep the tip clean; coatings on the tip can mimic the optical change of a liquid. Avoid installing where strong turbulence repeatedly splashes the tip unless that behavior is desired.
Frequently Asked Questions
Does it work with dark or opaque liquids?
Yes, the optical evaluation depends on refraction at the tip, not on the color of the liquid.
Can it detect foam?
Dense foam can trigger the switch; position the probe below the expected foam layer if only true liquid level matters.
Is it suitable for viscous media?
Moderately viscous media work, but coatings build up faster; plan cleaning intervals accordingly.
Related Distance and Measurement Sensors
For continuous level measurement, see the SICK LFP0025-B4NMB. For vibrating level switches, see the SICK LFV200-XXSGBTPM.
