Thermo Scientific DensityPRO-T - DensityPRO-T Remote Detector

Installation
System PCAs
3-8 DensityPRO Installation Manual Thermo Scientific
DensityPRO-T
Remote Detector
To access the remote detector electronics, follow the steps below.
1. Ensure all source shutters are in the OFF position.
2. Ensure all power to the gauge is turned off.
3. Remove the Model MS2011DUR housing access cover.
a. For the explosion-proof housing, loosen the screw on the cover retaining
bracket and slide the bracket off the housing cover.
4. Change the detector electronics of the remote detector unit.
a. To remove the Power Supply PCA
i. Remove retaining screws from the bulkhead.
ii. Remove the power supply cable from the Power Supply PCA.
iii. Remove the four retaining screws from the Power Supply PCA.
iv. Pull the PCA down to remove it from the IBP PCA.
v. Replace.
b. To remove the IBP PCA
i. Remove the retaining screws from the bulkhead.
ii. Remove the four retaining screws from the IBP.
iii. Gently remove the IBP PCA.
iv. To remove the Preamp, continue to the next step. To reassemble and
close the unit, skip to step 5.
c. To remove the Preamp PCA
i. Remove the eight screws, four from each side, on the PMT side of the
card cage.
ii. Lift the card cage up to remove the photomultiplier tube assembly.
iii. Loosen the two bolts located to the left and right of the photomultiplier
tube.
iv. Gently pull the photomultiplier tube down and out of the Preamp PCA.
v. Remove the four retaining screws and detach any cabling from the
Preamp PCA.
vi. Remove and replace the Preamp PCA.
vii. Reattach any cabling and the four previously removed screws to the PCA.
viii. Reattach the photomultiplier tube to the PCA.
ix. Tighten the two bolts adjacent to the photomultiplier tube.
x. Carefully replace the photomultiplier tube assembly.