43
I
NSTALLATION
5.45.4
5.45.4
5.4
MM
MM
M
OUNTINGOUNTING
OUNTINGOUNTING
OUNTING
THETHE
THETHE
THE
P P
P P
P
RESSURERESSURE
RESSURERESSURE
RESSURE
T T
T T
T
RANSMITTERRANSMITTER
RANSMITTERRANSMITTER
RANSMITTER
Dynisco offers a set of mounting hole-machining tools with all the necessary drills, taps, and reamers
for the Dynisco standard ½-20UNF-2A and M18 and M10 mounting holes used in high temperature and
plastics processing applications (Dynisco Part Numbers 200925, 200105 and 901949 respectively).
Detailed instructions are sent with the machining kits. Copies of the instructions are available from
Dynisco upon request.
When machining the hole pay careful attention to the concentricity between the threads and the 0.312/
0.314 diameter. Since the pressure seal is on the 45° seating surface, this surface should be examined
for good finish, free from burrs, etc.
It is general good practice to check the mounting hole before installing the transducer. One procedure
is to coat a gauge plug (Dynisco Part Number 200908 for the 1/2 –20 standard port, 435901 for the
short tip 1/2 –20 version, 200960 for the M18), with Dykem machine bluing on surfaces below the
thread. Insert the gauge plug into the mounting hole and rotate until surface binding is encountered.
Remove and inspect. Bluing should only be scraped off of the 45° sealing chamfer. If bluing has been
removed from other surfaces, the mounting hole has not been machined properly.
5.5.
5.5.
5.
55
55
5
II
II
I
NSNS
NSNS
NS
TT
TT
T
ALLINGALLING
ALLINGALLING
ALLING
THETHE
THETHE
THE
F F
F F
F
LANGEDLANGED
LANGEDLANGED
LANGED
P P
P P
P
RERE
RERE
RE
SS
SS
S
SURESURE
SURESURE
SURE
TT
TT
T
RANSRANS
RANSRANS
RANS
MITMIT
MITMIT
MIT
TERTER
TERTER
TER
Note that the pressure seal on flange mounted units is made at the lower o-ring or gasket, not the
flange.
See section 5.2 for recommended mounting torques.
Recommended mounting torques to crush appropriate gasket material:
Pressure Range Gasket Part Number Torque
3,000 psi Aluminum 494602 15 ft/lbs
10,000 psi Parkerized Carbon Steel 634001 60 ft/lbs
10,000 psi Hastelloy 634002 60 ft/lbs
10,000 psi 303 Stainless Steel 634004 60 ft/lbs
5.65.6
5.65.6
5.6
TT
TT
T
HERMOCHERMOC
HERMOCHERMOC
HERMOC
OUPLEOUPLE
OUPLEOUPLE
OUPLE
OROR
OROR
OR
R R
R R
R
TT
TT
T
D AD A
D AD A
D A
SS
SS
S
SS
SS
S
EMBLEMBL
EMBLEMBL
EMBL
YY
YY
Y
R R
R R
R
EMOEMO
EMOEMO
EMO
VV
VV
V
ALAL
ALAL
AL
ANDAND
ANDAND
AND
I I
I I
I
NSNS
NSNS
NS
TT
TT
T
ALLAALLA
ALLAALLA
ALLA
TIONTION
TIONTION
TION
1. To remove, loosen setscrew on side of snout.
2. Without twisting, pull the thermocouple probe or RTD stem carefully out of snout.
3. To install slide the new thermocouple or RTD into the snout.
4. Lock in place with setscrew.
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