Scanner 2000 Steam Mass Flow Transmitter ... - Spirax Sarco
Scanner 2000 Steam Mass Flow Transmitter ... - Spirax Sarco
Scanner 2000 Steam Mass Flow Transmitter ... - Spirax Sarco
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<strong>Scanner</strong> ® <strong>2000</strong> microEFM Section 5<br />
18. Recalibrate the <strong>Scanner</strong> <strong>2000</strong> and replace the enclosure cover.<br />
Important Do not overlook the need to recalibrate the <strong>Scanner</strong> <strong>2000</strong>. Boards that are shipped independently<br />
of a <strong>Scanner</strong> <strong>2000</strong> are not calibrated to compensate for atmospheric pressure;<br />
therefore, a <strong>Scanner</strong> <strong>2000</strong> will not display accurate pressure readings until it is recalibrated.<br />
19. Re-establish power to the peripheral circuitry.<br />
Keypad Replacement<br />
!<br />
WARNING: To prevent ignition of hazardous atmospheres, do not remove the cover while circuits<br />
are alive. The <strong>Scanner</strong> <strong>2000</strong> poses no hazard when opened in a safe area.<br />
To replace the keypad of the <strong>Scanner</strong> <strong>2000</strong>, perform the following steps:<br />
1. Unscrew the cover of the enclosure counter-clockwise until it separates from the main body of the enclosure.<br />
2. Using a small standard blade screwdriver, remove the two #4-40 × 7/8” screws located to the right and<br />
left side of the display (Figure 5.1, page 76).<br />
3. Lift the display/keypad assembly from the enclosure.<br />
4. Remove the two #4-40 × 5/16” screws fastening the circuit assembly to the keypad (Figure 5.3, page 78).<br />
5. Disconnect the keypad ribbon cable from the J7 connector on the LCD side of the circuit assembly as follows:<br />
a. Grasp the black clip between a thumb and forefinger (Figure 5.4, page 78).<br />
b. Squeeze both sides of the clip and gently pull to release the clip from the plastic connector that holds<br />
it in place. DO NOT PULL on the ribbon cable. When the black plastic clip is properly disengaged,<br />
the cable will release freely.<br />
6. Remove the old keypad.<br />
7. Connect the ribbon cable of the replacement keypad to the J7 connector on the LCD side of the circuit<br />
assembly as follows:<br />
a. Insert the end of the ribbon cable into the plastic clip.<br />
b. While holding the ribbon cable in place, press the black plastic clip into the connector until it snaps.<br />
8. Mount the circuit assembly to the keypad with the two #4-40 × 5/16” screws removed in step 4.<br />
9. Mount the display/keypad assembly to the enclosure with the two #4-40 × 7/8” screws removed in step 2.<br />
10. Recalibrate the <strong>Scanner</strong> <strong>2000</strong> if necessary.<br />
11. Replace the enclosure cover and tighten.<br />
79