WASP
TM
Wireless Acceleration Sensor Puck Operations Manual
- 6 -
2.1
.3 WASP™ LED
Error Indicator
Should the POST (Power On Self Test) fail, the device locks up and flashes the LED in a
discernible pattern to help diagnose the source of the problem. See the section at the
end of this manual on troubleshooting for details on the LED flash codes.
2.3.
Placement Of The WASP™ Pucks
2.3
.1 WASP™ M
ounting
The sensor pucks can be attached securely to the desired equipment by the magnet base.
Optional methods such as stud mount, clamp, or epoxy may be used. The supplied
magnets have an effective operating range of -40°C to 185°C (-40°F to 365°F)
WARNING
– THE RARE EARTH MAGNET BASE HAS IN EXCESS OF 50 LBS OF FORCE
AND CAN CAUSE HARM IF CARE IS NOT TAKEN
2.3.2
WASP™
Sensor Placement
To ensure effective wireless transmission between sensor pucks and receiver it is
recommended there is a direct line of sight between the units, (WASP to NEST).
2.3.3 Mounting Surface Preparation
It is recommended the surface be prepared for the installation of the
WASP™ sensors.
▪
It is recommended the sensors are placed on a flat surface, (min. area of 1.50 diameter).
▪
Ensure the surface is clear of debris and excess paint.
▪
Check
the magnetic base is screwed securely to the stud on the bottom of the WASP™.
▪
Check the top cap screws are tightened to a maximum of 15 ft. lb or 1.7 N m
▪
In less than ideal conditions a small amount of SILICON HEAT TRANSFER COMPOUND
may be used to facilitate a more efficient heat transfer from the mounting surface into the
sensor.
It is necessary to only cover the “stud” part of the sensor. This requires only a
small amount of compound,
approximately ¼” diameter, (or 5 mm dia.), at the center of
the magnet base.
▪
Carefully set the sensor in place. Avoid snapping with the magnet base as it can damage
the magnet.
2.4.
Optional Thermal Calibration Of WASP™s
To ensure the greatest accuracy of the monitored variables it is optional to do thermal
calibration of each WASP™ unit. The process of thermal calibration is as follows:
▪
Ensure the machinery for which the WASP™ is to be attached is at operating temperature.
▪
Place the WASP™ units at their desired mounting points using thermal paste. Allow 15
minutes for the temperature to stabilize.
▪
Using a thermometer gun, record the temperature value on the valve cap at the mounting
point of the WASP™ unit.
▪
At the receiver, adjust the display temperature to match the value of the thermometer gun
using the temperature offset function. (See the section on temperature calibration in the
“Setting Temperature Warning and Critical Alarm Thresholds” section of the WASP NEST
User Manual).
