Section 2: Installation And Setup - ControlByWeb XW-110 User Manual

Installation and Setup

Section 2: Installation and Setup

2.1 XW-110 Temperature Sensor Connections
The XW-110 uses "1-Wire" digital temperature sensors. The XW-110 supports one sensor and the XW-
110-Plus supports up to three sensors. The sensors are interchangeable and require no calibration. The
sensors accuracy is +/-0.5°C (-10°C to +85°C). The sensor requires three connections for
communications and power (+3.3V, Ground, Data). The temperature sensor is available in several
configurations.
For monitoring room temperature, the bare sensor can be connected directly to the terminal strip. When
installing the bare sensor, make certain the flat side is oriented towards the bottom. The encapsulated
version has a stainless steel probe and can be used in outdoor applications however, the probe is not
suitable for immersion or use in pressure vessels.
For immersion and other demanding applications use a thermowell to protect the sensor. The basic
sensor (non-encapsulated) must used in protected locations. The XW-110 will work with cable lengths
up to 50-feet and should not be routed near motors or AC wiring.
The enclosure can be mounted to a wall or panel with screws (not included). The two screw holes are
located underneath the batteries. When ControlByWeb modules are to be used in applications where
they could be exposed to water, high amounts of dust, bugs, or other environmental factors, we
recommend mounting them inside a sealed plastic enclosure.
Sensor Wire Color
Red
Black
Blue (or White)
Page 6
Connection
+3.3Vout
GND
Data
XW-110™ WiFi Temperature Sensor Users Manual
Xytronix Research & Design, Inc.