1
A
3
2
4
6
5
7
8
9
14
13
12
11
10
BAYONET SPRING
LOADED STYLE
GENERAL PURPOSE OR
SPRING LOADED STYLE
16
REVISION TABLE
ROSEMOUNT 78 TEMPERATURE SENSOR
BARSTOCK THERMOWELL
B
15
REVISION
ECO NO.
APP'D
DATE
AD
RTC1056639
JR
3/27/13
A
DESCRIPTION
COVERT TO PRO-E
B
.53 [13]
MAX THREAD
ENGAGEMENT (TYP)
BASELINE AA
(SEE SHEET 3) C
C
COUPLING
NIPPLE
D
UNION
NIPPLE
THREADED
MOUNT
"E"
E
THREADED
MOUNT
WELDED
MOUNT
WELDED
MOUNT
FLANGED
MOUNT
D
FLANGED
MOUNT
E
F
F
"X"
G
G
"L"
"U"
H
5.
STEM STYLES INTERCHANGABLE WITH THERMOWELL MOUNTING STYLE.
4.
SANITARY THERMOWELLS USE TRI-CLAMP MOUNTING STYLE (SHEET 2).
3.
SPRING LOADED AND BAYONET SENSOR TYPES ARE SHOWN .50 [12.7] COMPRESSED.
2.
.75 [19] CLEARANCE REQUIRED TO REMOVE COVERS.
1.
ROSEMOUNT INC. CERTIFIES THESE DRAWINGS ARE IN ACCORDANCE WITH
ROSEMOUNT ENGINEERING SPECIFICATIONS AND ACCURATELY REPRESENT
THE EQUIPMENT FURNISHED.
NOTES:
WITHOUT EXTENSION
X = L
STEPPED
STEM
THERMOWELL
WITHOUT EXTENSION
K
L
EQUATIONS
L = U+T+1.50 [38]
WITH EXTENSION
X = E+L
X = E+U+T+1.50 [38]
00068-0017
TAG NO.
THERMOWELL
WITH EXTENSION
STRAIGHT
STEM
J
DRAWING NO.
EXTENSIONS
TAPERED
STEM
CUSTOMER
INFORMATION WITHIN THIS
DOCUMENT MAY CHANGE WITHOUT
NOTICE. NOT INTENDED FOR
ENGINEERING USE. REFERENCE
ROSEMOUNT PRODUCT DATA SHEETS
FOR ENGINEERING INFORMATION.
FORM REV AA
SENSORS
STEPPED
STEM
CONFIDENTIAL AND PROPRIETARY
INFORMATION IS CONTAINED HEREIN
AND MUST BE HANDLED ACCORDINGLY.
EMERSON
K
STRAIGHT
STEM
UNLESS OTHERWISE SPECIFIED
DIMENSIONS IN INCHES [mm].
TAPERED
STEM
M
H
.25
(6)
J
L
CAL.
"U"
CUSTOMER DWG NO.
P.O. No.
S.O. No.
PROJECT NAME
DO NOT SCALE PRINT
3RD ANGLE
***
SIZE
D
SCALE
REV
3/4 AD
***
ROSEMOUNT 78 TEMPERATURE
SENSOR BARSTOCK THERMOWELL
*** TITLE
***
DR.
*** APP'D
JLA
JR
CAD MAINTAINED, (PRO/E) PRODUCT CODE
3/27/13 DRAWING NO.
3/27/13
- DOC TYPE
D
SHEET
00078-0240
1 OF 3
M
1
A
4
3
2
6
5
9
8
7
11
10
14
13
12
15
16
ROSEMOUNT 78 TEMPERATURE SENSOR
SANITARY THERMOWELL
A
BAYONET SPRING
LOADED STYLE
B
GENERAL PURPOSE OR
SPRING LOADED STYLE
B
.53 [13]
MAX THREAD
ENGAGEMENT (TYP)
BASELINE AA
(SEE SHEET 3) C
C
COUPLING
NIPPLE
1-3 in.
TRI-CLAMP
MOUNT
UNION
NIPPLE
D
"E"
E
1-3 in.
TRI-CLAMP
MOUNT
3/4 in.
TRI-CLAMP
MOUNT
D
3/4 in.
TRI-CLAMP
MOUNT
E
F
F
"X"
G
G
"L"
"U"
H
H
SENSORS
EXTENSIONS
STRAIGHT
STEM
THERMOWELL
WITH EXTENSION
STEPPED
STEM
STRAIGHT
STEM
THERMOWELL
WITHOUT EXTENSION
CUSTOMER
INFORMATION WITHIN THIS
DOCUMENT MAY CHANGE WITHOUT
NOTICE. NOT INTENDED FOR
ENGINEERING USE. REFERENCE
ROSEMOUNT PRODUCT DATA SHEETS
FOR ENGINEERING INFORMATION.
WITHOUT EXTENSION
X = L
CONFIDENTIAL AND PROPRIETARY
INFORMATION IS CONTAINED HEREIN
AND MUST BE HANDLED ACCORDINGLY.
EMERSON
WITH EXTENSION
X = E+L
X = E+U+T+1.50 [38]
UNLESS OTHERWISE SPECIFIED
DIMENSIONS IN INCHES [mm].
EQUATIONS
L = U+T+1.50 [38]
FORM REV AA
K
L
L
M
J
DRAWING NO.
STEPPED
STEM
00078-0240
TAG NO.
.25
[6]
J
K
CAL.
"U"
CUSTOMER DWG NO.
P.O. No.
S.O. No.
PROJECT NAME
DO NOT SCALE PRINT
3RD ANGLE
***
SIZE
D
SCALE
REV
3/4 AD
***
ROSEMOUNT 78 TEMPERATURE
SENSOR BARSTOCK THERMOWELL
*** TITLE
***
DR.
*** APP'D
JLA
JR
CAD MAINTAINED, (PRO/E) PRODUCT CODE
3/27/13 DRAWING NO.
3/27/13
- DOC TYPE
D
SHEET
00078-0240
2 OF 3
M
1
A
3
2
4
6
5
8
7
9
ROSEMOUNT 78 TEMPERATURE SENSOR
CONNECTION HEADS
14
13
12
11
10
15
16
A
ALUMINUM CONNECTION
HEAD WITH EXTENDED COVER
ALUMINUM
CONNECTION HEAD
B
B
C
4.09
[104]
.45
[12]
COVER CLAMP
(OPTION CODE DEPENDENT)
.26
[7]
4.90
[124]
C
5.29
[134]
CONDUIT
CONNECTION
D
BASELINE AA
(FROM SHEETS 1 & 2)
3.47
[88]
D
GROUND SCREW
(OPTION CODE DEPENDENT)
CERTIFICATION
LABEL
1.20
[30]
E
E
3.92
[100]
F
F
3.08
[78]
COVER CLAMP
AND GROUND SCREW
(OPTION CODE DEPENDENT)
4.16
[106]
G
G
3.40
[86]
CERTIFICATION
LABEL
CAL.
CONDUIT
CONNECTION
4.47
[113]
H
H
3.94
[100]
2.56
[65]
K
ROSEMOUNT ALUMINUM OR SST
CONNECTION HEAD
00078-0240
BASELINE AA
(FROM SHEETS 1 & 2)
1.63
[42]
TAG NO.
J
GLAND
SEAL
2.40
[61]
POLYPROPYLENE
CONNECTION HEAD
CUSTOMER
INFORMATION WITHIN THIS
DOCUMENT MAY CHANGE WITHOUT
NOTICE. NOT INTENDED FOR
ENGINEERING USE. REFERENCE
ROSEMOUNT PRODUCT DATA SHEETS
FOR ENGINEERING INFORMATION.
CONFIDENTIAL AND PROPRIETARY
INFORMATION IS CONTAINED HEREIN
AND MUST BE HANDLED ACCORDINGLY.
EMERSON
UNLESS OTHERWISE SPECIFIED
DIMENSIONS IN INCHES [mm].
FORM REV AA
K
L
L
M
J
DRAWING NO.
2.24
[57]
3.04
[77]
CUSTOMER DWG NO.
P.O. No.
S.O. No.
PROJECT NAME
DO NOT SCALE PRINT
3RD ANGLE
***
SIZE
D
SCALE
REV
1/1 AD
***
ROSEMOUNT 78 TEMPERATURE
SENSOR BARSTOCK THERMOWELL
*** TITLE
***
DR.
*** APP'D
JLA
JR
CAD MAINTAINED, (PRO/E) PRODUCT CODE
3/27/13 DRAWING NO.
3/27/13
- DOC TYPE
D
SHEET
00078-0240
3 OF 3
M