4
ESD Protection
Electrostatic Discharge (ESD) can cause immediate or latent damage to
electronic circuits. Edgetech Instruments products are adequately protected
against ESD for their intended use. It is possible to damage the product,
however, by delivering electrostatic discharges when touching, removing, or
inserting any objects inside the equipment housing.
1. To make sure you are not delivering high static voltages yourself when handling
the replaceable sensor tip PCB.
2. Handle ESD sensitive components on a properly grounded and protected ESD
workbench.
3. When an ESD workbench is not available, ground yourself to the equipment
chassis with a wrist strap and a resistive connection cord.
4 If you are unable to take either of the above precautions, touch a conductive part
of the equipment chassis with your other hand before touching ESD sensitive
components.
5 Always hold component boards by the edges and avoid touching the
component contacts.
Using “Swagelok” fitting
1. How to install Swagelok fittings. Insert the HP125 probe to your selected
insertion depth. Avoid the area adjacent to and below the threaded tip cover
joint area
2. Tighten by hand until the nut is finger tight. Further tighten the nut until the
probe will not turn by hand and cannot be moved axially in the fitting.
a. Mark the nut at the at the 6-0-clock position
b. While holding the fitting body steady, tighten the nut one and one
quarter turns till the nut is in the 9-0-clock position.
c. Swagelok fittings may be disassembled and reassembled many times.
See Sentry Manual
Mounting the PROBE with CABLE.
Before mounting the probe into any system ensure the system is safe
to work on. Depressurize and verify that all the power connections are isolated
in the OFF position.
Installation should be carried out by trained technicians and following all local
safety protocols.
1. Ensure there is adequate cable length from the probe cable to make
connection to the control box.
2. Select Probe insertion position, ensure safe clearance around the probe
to avoid damage.
3. Check all pipe fittings and pipe boss dry assembly for fit up. Probe is
standard with ½” NPT fitting, optional ¾” NPT.
4. Insert pipe fittings using suitable sealing tape or sealing compound.
Mount the Probe in position to measure the desired gas.
