Acuity LS
Page 6
Operating Manual #OMA20200327
CAUTION: Contact time of the sensors with solvent should be kept to a minimum. Prolonged
contact with solvents may soften and damage the polymer sensor materials.
The Acuity LS device and LSP can be used with coatings. Please contact Luna for specific instructions
for coating the LSP and using the Acuity LS device to measure coating performance
.
Battery Replacement
The low-power electronics in the Acuity LS ensure long life, battery powered operation. When the battery
is depleted, it may be swapped out without removing the Acuity LS device from a structure. Battery
replacement is outlined below.
1. Source a new Saft LS17500 primary-cell battery from Luna or an authorized Saft distributor.
NOTE: Substituting a different battery type is strictly prohibited. Device damage and safety
hazards may result from unauthorized battery usage.
WARNING: TEMPERATURES IN EXCESS OF 100 °C MAY CAUSE BATTERY FIRE,
EXPLOSION, AND SEVERE BURN HAZARD.
2.
Using a 5/8” box end wrench or socket, remove the battery cap (Figure 4).
3. Remove the metal battery contact tube and the battery.
•
For sensors mounted with battery cap facing up, the battery is more difficult to extract.
•
In these situations, it may be possible to extract the battery by quickly pulling the battery
tube from the device to create a vacuum around the battery.
•
If this is unsuccessful, a small jet of compressed air (i.e., canned air) directed between
the battery and the housing is sufficient to extract the battery in these situations.
•
It is for this reason that Luna does not recommend mounting the sensor directly vertical
with the battery cap on top.
4. Visually check the contact faces on the metal tube to ensure that there is no evidence of
corrosion or other damage.
5. Install a new battery into the metal tube
using the polarity shown below
6. Install battery and tube into the device housing.
7. Inspect battery cap O-ring seal for damage. If none, reinstall battery cap by hand until seated.
Ensure that O-ring remains in its groove during this step.
8. Using a torque-limiting driver, tighten battery cap to 30 lbf-in [3.4 N-m].
NOTE: Consult Luna if
tooling recommendations are needed.
9. Verify functionality of the new assembly using the Acuity LS Interface software.
