Data Sheet
DLC3020f Digital Level Controller
D103433X012
Product Bulletin
11.2:DLC3020f
November 2014
4
Ordering Information
When ordering, specify:
1. Type of measurement
J Level or J Interface
2. Process fluid type
J Water, J Saline water, J Saturated water,
J Saturated steam,J Crude oil, J Refined
product,
J Gas well condensate, or J Customer
specified fluid
Note
If Interface indicate both upper and lower fluid types.
3. Process operating conditions
Temperature ______________________________
Fluid density or SG __________________________
Note
If Interface indicate fluid density or SG for both upper and
lower fluids.
4. Tag number, as required _____________________
Figure 1. Guidelines for Use of Optional Heat
Insulator Assembly
HEAT INSULATOR
REQUIRED
70
0 20 40 60 80 100 120 140 160
010 20
-20 -10
30 40 50 60
400
300
200
100
0
0
400
800
-325
AMBIENT TEMPERATURE (_C)
STANDARD TRANSMITTER
AMBIENT TEMPERATURE (_F)
HEAT INSULATOR
REQUIRED
TOO
HOT
425
80
-100
-200
176
-20-40
-40 -30
TOO
COLD
1
NO HEAT INSULATOR NECESSARY
PROCESS TEMPERATURE (_F)
PROCESS TEMPERATURE (_C)
Notes:
1 For process temperatures below -29_C (-20_F) and above 204_C (400_F)
sensor materials must be appropriate for the process (refer to bulletin
34.2:2500)
2. If ambient dew point is above process temperature, ice formation might
cause instrument malfunction and reduce insulator effectiveness.
39A4070‐B
A5494‐1
Optional Heat Insulator
If the DLC3020f and a 249 sensor are ordered as an
assembly, and a heat insulator is required for the
application, order the heat insulator as a 249 sensor
option. If the DLC3020f is ordered separately, the heat
insulator is available as a kit. Figure 1 contains
guidelines for use of the optional heat insulator.
Emerson Process Management
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Chatham, Kent ME4 4QZ UK
Dubai, United Arab Emirates
Singapore 128461 Singapore
www.Fisher.com
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