Cleaning The Low Profile Av Probe; Standard Av Probe With Mounting Plate; Standard Av Probe, Protective Disk Exposed - Teledyne 4250 Installation And Operation Manual

4250 Flow Meter
Section 5 Maintenance and Service
Figure 5-2 Standard AV Probe with Mounting Plate
Figure 5-3 Standard AV Probe, Protective Disk Exposed
5.3.3 Cleaning the Low
Profile AV Probe
Figure 5-4 Low Profile AV Probe Without Mounting Plate
5-6
spacer disk between the the sensor mounting plate and the
screw at the front of the sensor.
4. Flush the underside of the sensor with water. Do not
remove the protective disk and round gasket from the level
sensor unless you can see that the ports are blocked with
solids.
5. If the ports are clogged and do not clear with the running
water, you may have to carefully remove the disk and gas-
ket. Removing the disk exposes the delicate, paper-thin
metal diaphragm of the pressure transducer. Do not
touch the diaphragm with fingers or tools.
6. Gently flush with water, without training the stream
directly into the cavity. Forcing water or air directly
against the diaphragm can ruin the probe.
Protective
Disk
The low profile AV sensor is cleaned in the same manner as the
standard AV sensor. However, the transducer is encased in
stainless steel. Nevertheless, do not insert anything into the vent
holes when cleaning the transducer area.