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34-SM-03-01
Page 24
Thermocouple assembly available from Honeywell Inc.
Thermocouple Probe Assembly
Probe Style
1/4-inch Rigid Probe
1/4-inch Spring-Loaded Probe
Sheath Material
Stainless Steel
Inconel
Other (Consult Phoenix STC)
Thermocouple Type
Number of Elements
Single element
Dual element
Type of Junction
Grounded
Ungrounded
Stem Length Dimension
Stem length in inches (3" minimum, 24" maximum)
Probe Lag Hardware 1/2-inch NPT
SST Fittings ( 78D4 only)
Hex Nipple as 3/4-inch Standard
316 SS. Specify as "A3/4"
Specify Straight Nipple as "BX"; where
X = 3-inch, 6-inch, 9-inch lengths.
Specify Double Lags and Union as "CX"; where X =
mated lengths of 3-inch, 8-inch, 10-inch or 14-inch.
Note: Stem length plus lag length cannot exceed
24" total without prior factory consultation.
Remote Connection Head
Explosionproof, standard cast aluminum
Plastic (not explosionproof)
Polypropylene (not explosionproof)
Lead Length*
Minimum lead length, as required, 3" average
Lead length (X) as specified, 3-6", above 6"
Maximum Operating Temperature
Options
Standard wired-on SST tag
Certificate of Probe Calibration (2-point)
Certificate of Probe Calibration (3-point)
Certificate of Probe Calibration (4-point)
*
Caution: Excessive lead lengths may result in lead wire damage due to space limitations within the remote head
Model Selection Guide, continued
78
Code
B4
D4
S
I
O
J
K
T
E
S
D
G
U
A
A3/4
B3
B6
B9
C3
C8
C10
C14
R
PL
PO
A
X
SST
CC2
CC3
CC4
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