10
IQ Power HL Sensor
5201252 Rev. A
4. Connect Sensor Interface to IQ Power system (Control Station) using modular cable
according to instructions included with the interface.
Purge Gas
NOTE
– Purge gas or compressed air used with this device MUST be clean and
dry. Dirt, water or oil in the purge gas will damage sensor. If the installation
location is prone to surface contamination (such as a coating line) the use of purge
gas is mandatory to maintain sensor operation.
In dirty or dusty environments low pressure purge gas may be used to prevent sensors from
becoming fouled with debris. The purge system is designed to provide a gentle flow of
purge gas at each sensor aperture where the electrostatic field is measured.
In environments with aerosol or vaporous contaminates (substances that tend to create
a film on surfaces) purge gas MUST be used. Purge gas prevents fouling of the sensor
element which will cause failure of the sensor.
The purge gas must be prepared with filtration and pressure regulation to ensure a low
pressure flow of clean, dry, oil-free air. Operation of the purge system calls for purge gas
at 1 to 2.5 psi (7 to 17 kPa). Connection to sensor bar is made with a ¼”outside diameter
tubing quick disconnect. Tubing must be clean and may include typically used tubing
materials such as nylon, polyethylene or polyurethane. To connect sensor assembly, make
sure tubing is cut cleanly and not at an angle, then simply push tubing into fitting on end
of bar.
NOTE
– Do not apply more than 10 psi (70 kPa) to the purge gas fitting or
equipment damage may result.
Route tubing away from any moving machine parts and secure tubing to prevent damage.
Sensor Number
NOTE
– Do not plug two or more sensors with the same Sensor Number into the
same Sensor Interface. Duplication of Sensor Numbers on an interface will cause
unstable operation and corruption of data.
Each IQ Power HL Sensor is assigned a Sensor Number. The sensor number may be 1
through 8. The IQ Power HL Sensor comes from the factory with a label on its cable
identifying its assigned Sensor Number.
The Sensor Number is used to identify the sensor and data associated with it. When the
sensor is connected to an IQ Power Sensor Interface, an indicator will illuminate next to
the corresponding Sensor Number. The Sensor Number will also appear on the Control
Station display to indicate data received from that specific sensor and adjustments that
may be made to that specific sensor.