Emerson FISHER FIELDVUE DLC3010 Instruction Manual page 21

Instruction Manual
D102748X012
Figure 2‐7. Guidelines for Use of Optional Heat Insulator Assembly
AMBIENT TEMPERATURE (_C)
0
-40 -30 -20 -10
800
HEAT INSULATOR
400
NO HEAT INSULATOR NECESSARY
0
1
TOO HEAT INSULATOR
COLD REQUIRED
-325
-40 -20 0 20
AMBIENT TEMPERATURE (_F)
STANDARD TRANSMITTER
NOTES:
1 FOR PROCESS TEMPERATURES BELOW -29_C (-20_F) AND ABOVE 204_C (400_F)
SENSOR MATERIALS MUST BE APPROPRIATE FOR THE PROCESS; SEE TABLE 1‐4.
2. IF AMBIENT DEW POINT IS ABOVE PROCESS TEMPERATURE, ICE FORMATION MIGHT
CAUSE INSTRUMENT MALFUNCTION AND REDUCE INSULATOR EFFECTIVENESS.
39A4070‐B
A5494‐1
Figure 2‐8. Digital Level Controller Mounting on Sensor in High Temperature Applications
CAP SCREWS
(KEY 63)
MN28800
20A7423‐C
B2707
1. For mounting a digital level controller on a 249 sensor, secure the shaft extension to the sensor torque tube shaft
via the shaft coupling and set screws, with the coupling centered as shown in figure 2‐8.
2. Slide the access handle to the locked position to expose the access hole. Press on the back of the handle as shown in
figure 2‐4 then slide the handle toward the front of the unit. Be sure the locking handle drops into the detent.
3. Remove the hex nuts from the mounting studs.
4. Position the insulator on the digital level controller, sliding the insulator straight over the mounting studs.
5. Install 4 washers (key 78) over the studs. Install the four hex nuts and tighten.
6. Carefully slide the digital level controller with the attached insulator over the shaft coupling so that the access hole
is on the bottom of the digital level controller.
7. Secure the digital level controller and insulator to the torque tube arm with four cap screws.
8. Tighten the cap screws to 10 NSm (88.5 lbfSin).
10 20 30 40 50 60 70
TOO
HOT
REQUIRED
40 60 80 100 120 140 160
SET SCREWS
(KEY 60)
SHAFT
COUPLING
(KEY 59)
SENSOR
80
425
400
300
200
100
0
-100
-200
176
WASHER
(KEY 78)
HEX NUTS
(KEY 34)
MOUNTING STUDS
(KEY 33)
DLC3010 Digital Level Controller
INSULATOR
(KEY 57)
SHAFT
EXTENSION
(KEY 58)
DIGITAL LEVEL CONTROLLER
Installation
May 2018
21