Understanding Sensor Settings
Video Tutorial: Watch the companion video V12: Understanding Sensor Settings for a visual explanation of these concepts.
Overview
Sensor settings control how your lights respond to occupancy and ambient light. Understanding these parameters is essential for balancing comfort, safety, and energy savings. This article explains the key sensor parameters you'll configure in the Keilton+autani system.
Accessing Sensor Settings
- Navigate to the Lights page.
- Long press on a sensor-equipped light to open the Light Dimming page.
- Tap the Sensor Settings icon in the lower right corner.
The sensor settings panel displays all configurable parameters for the selected fixture.
T1: First Time Delay
What it does: T1 defines how long lights stay at full working level after detecting motion.
How it works: - When motion is detected, the light turns on and T1 starts counting - Continuous motion resets T1 - When motion stops, T1 counts down - At the end of T1, the light enters the T2 phase
Typical values:
| Space Type | Recommended T1 |
|---|---|
| Storage room | 10 minutes |
| Corridor | 10 minutes |
| Open office | 20 minutes |
| Meeting room | 20 minutes |
| Classroom | 30-40 minutes |
T2: Second Time Delay
What it does: T2 is a warning phase before lights turn off. During T2, lights dim to a reduced level.
How it works: - After T1 expires, T2 begins - Lights dim to the configured Dim Level - This visual cue warns occupants lights will soon turn off - Movement during T2 returns lights to full brightness and resets T1
Typical values: 1-5 minutes
Special option: Set T2 to "Infinite" if lights should never turn completely off—useful for corridors, stairwells, and safety areas.
Dim Level
What it does: Dim Level sets the brightness during the T2 warning phase, expressed as a percentage of the working light level.
How it works: - A 50% dim level means lights reduce to half brightness during T2 - Lower values (30%) save more energy but provide less visibility - Higher values (80%) maintain more light but save less energy
Recommendations by space:
| Space Type | Dim Level |
|---|---|
| Storage room | 30% |
| Corridor | 30% |
| Open office | 50% |
| Meeting room | 80% |
| Classroom | 80% |
Sensitivity
What it does: Sensitivity controls how responsive the motion sensor is to movement.
Settings: - High sensitivity (100%): Detects small movements from greater distances - Low sensitivity: Requires more deliberate motion to trigger
Guidelines: - Use high sensitivity in large open areas - Reduce sensitivity near HVAC vents, ceiling fans, or other sources of air movement - Reduce sensitivity if experiencing false triggers
Occupancy vs Vacancy Mode
The system offers two operating modes:
Occupancy Mode (Auto On / Auto Off)
- Lights turn ON automatically when motion is detected
- Lights turn OFF automatically when T1/T2 timers expire
- Fully automatic operation
Vacancy Mode (Manual On / Auto Off)
- Lights must be turned ON manually via switch or app
- Lights turn OFF automatically when T1/T2 timers expire
- Saves energy in spaces where lights aren't always needed
Recommended Settings by Space Type
| Space | T1 | T2 | Dim Level | Mode |
|---|---|---|---|---|
| Open office | 20 min | 1 min | 50% | Occupancy |
| Meeting room | 20 min | 1 min | 80% | Occupancy |
| Classroom | 30-40 min | 5 min | 80% | Occupancy |
| Storage room | 10 min | 1 min | 30% | Occupancy |
| Corridor | 10 min | 1 min - Infinite | 30% | Occupancy |
| Restroom | 15 min | 1 min | 50% | Occupancy |
Linkage Light Level
What it does: When no movement is detected during T1, but other lights in the same group detect movement (with linkage enabled), lights dim to the linkage light level instead of following normal T2 behavior.
How it works: - Linkage level is a percentage of the working light level - Linkage can override T2 behavior - Useful for maintaining some light in adjacent areas
Quick Reference
| Parameter | Function | Typical Range |
|---|---|---|
| T1 | Full brightness hold time | 10-40 minutes |
| T2 | Dimmed warning phase | 1-5 min or Infinite |
| Dim Level | T2 brightness | 30-80% |
| Sensitivity | Motion detection range | Low to 100% |
| Mode | Auto-on behavior | Occupancy or Vacancy |
| Linkage Level | Brightness when group motion detected | 50-100% |
Related Articles
- Configuring Motion Sensors
- Manual OFF Override Settings
- Daylight Harvesting Strategies
- Sensor-Ready Controller Setup
Based on Keilton+autani App User Guide v9.7