Autonics proximity sensors CR18-8DN
Table of Contents
Autonics proximity sensors CR18-8DN
CR18-8DP
Autonics proximity sensors CR18-8DN 8DN2 8DP CR18-8AO
Sensor, Capacitive Prox, 18mm Round, Shielded, DC, PNP, NO, 3 Wire, 10-30 VDC
Description
The CR series capacitive proximity sensors are capable of detecting any material with dielectric different from air. The sensors can detect conductive and non-conductive materials including metal, iron, stone, plastic, water, and grain. The built-in sensitivity adjuster allows easy configuration of detecting distance, making it ideal for application in various environmental settings. The CR series is available in DC 3-wire types and AC 2-wire types.
Detailed instructions can be extracted from a table here
Ordering the autonics proximity sensors
To order the autonics proximity sensors, send the exact model or reference code printed on the original part to [email protected]. Please quote the full code including any suffix so that our team can confirm the correct variant, current stock and lead time before you commit.
About the autonics proximity sensors
Elevator and escalator installations are built around a relatively small number of serviceable assemblies, but they fail at very different rates. The autonics proximity sensors sits in the switches / sensors / wiring group, and it is replaced on a different service interval from the assemblies around it. In practice the failures we see on autonics proximity sensors come down to contact pitting, moisture ingress at the cable gland, drifted optical alignment, and brittle insulation on travelling cables after years of flexing.
Every autonics proximity sensors we supply is inspected before dispatch. Each unit is checked for physical damage, correct marking and the specific wear or degradation patterns that matter for this class of component, then packed to survive international transit. Where a superseded revision is the only one available, we say so plainly and explain the substitution, so the installing engineer can make an informed decision rather than discovering the difference on site.
Buying guidance and compatibility notes
Before ordering the autonics proximity sensors, confirm three things. First, the switch or sensor model, the mounting pattern, and the supply voltage and contact configuration (NO or NC). Second, contact configuration matters more than physical size — a switch that bolts straight on can still be electrically wrong. Third, whether the installation is a traction lift or an escalator, since duty cycle and loading differ between the two.
On fitting, one point is worth repeating: record the terminal numbers before disconnecting a travelling cable, since colour codes are not consistent between controller generations. Almost every repeat failure we see on autonics proximity sensors traces back to a related component that was left in place, or to an adjustment that was assumed rather than measured.
Switches and sensors fail in ways that are rarely visible. Contact pitting, insulation that has become brittle, and optical surfaces that have clouded over all degrade performance long before the component stops working altogether.
Lift electrics fail invisibly, and then they fail abruptly; the switch or sensor model, the mounting pattern and the contact configuration identify the correct replacement.
Displays, buttons and intercoms are passenger-facing, so their failure is immediately visible and often reported before any technical diagnosis is possible. Keeping common faceplates and modules in stock shortens the outage considerably.
The control circuit is the part of a lift where a small failure has the largest effect, and the symptom that most often brings an engineer to it is a levelling error that appears once a week and never on demand.
If you are unsure which variant of the autonics proximity sensors you need, send a photograph of the nameplate and the existing component alongside a description of the fault. That is usually enough for our team to identify the correct replacement without a site visit, and it avoids the cost and delay of returning an incompatible part. We are also happy to advise on the other serviceable items in the same switches / sensors / wiring group, so a planned shutdown can cover several wear items at once.
Related parts and further reading
Because autonics proximity sensors is only one item in the switches / sensors / wiring group, these related pages may help you plan the work:
- Elevator limit switches
- Elevator Levelling Sensor
- Elevator Encoder
- Elevator Push Button
- Elevator Display
Reference sources
The compatibility information on this page was cross-checked against the following authoritative references. Always confirm the exact reference against your own equipment nameplate.
