Emerson Rosemount 935, Reference Manual

Page: 36 / 76

6. Place and secure the source back cover by screwing the cover and securing the back
screw bolt.
4.10.2 Wiring to source terminals
The source contains six wiring terminals.
Table 4-6: Flash source wiring terminals
Terminal number Function
1 Power + 24 Vdc
2 Return - 24 Vdc
3 Not used
4 Not used
5 RS-485 (+)
6 RS-485 (-)
4.11 Align detector
Use the alignment tool to perform full alignment.
Align the detector in two stages: crude alignment and fine alignment.
The alignment tool includes a periscope that consists of a prism and an ocular located
vertical to the alignment tool assembly. This allows you to look into the opposite unit
perpendicularly to the alignment when access from the rear of the unit is impossible. For
installations where rear access is possible, you don't need to install the periscope. In this
case, you can remove it by releasing the periscope fastening screw.
NOTICE
Prior to installing the alignment tool, verify that the alignment tool and its sight mounting
are free from any dirt to ensure proper alignment according to factory calibration.
Do not attempt to change any factory calibration at the alignment tool or its mounting.
To align the detector (see Figure 4-3 and Figure 4-4 ):
1. Make sure that the detector and flash source are installed properly. Installation
provides installation instructions.
2. Remove the front shield using the two captive screws.
3. Install the alignment tool assembly on the detector/source front.
4. Fasten the alignment tool with fastening screws.
4.11.1 Perform crude alignment
Prerequisites
Use a ¼ -in Allen screwdriver for all alignment screws.
Installation Reference Manual
May 2022 00809-0100-4035
36 Emerson.com/Rosemount