Model 87N UltraStable
ꢀ Hydraulic Controls
ꢀ Process Control
ꢀ Robotics
316 SS Pressure Sensor
High Performance, Small Profile
0-100 mV Output
ꢀ Oceanography
Temperature Compensated
Absolute and Sealed Gage
ꢀ Refrigeration/Compressors
ꢀ Pressure Transmitters
DESCRIPTION
This is a micro machined piezoresistive silicon pressure sensor.
It is designed for OEM applications where compatibility with
corrosive media must be maintained. The sensor chip is
mounted on a TO style header, which is resistance welded to a
316 stainless steel package, sealing a small volume of silicone oil
between the diaphragm and the sensor chip. The ISO pressure
housing utilizes the oil column to couple the piezoresisteve
sensor to the isolation diaphragm. A thickfilm ceramic
compensation board with laser trimmed resistors, and
additional gain set resistor to normalize pressure sensitivity are
an integral part of the sensor package. A variety of threaded
process fittings are available. Fittings include standards like 1/4
and 1/8 NPT as well as custom process fittings. Electrical
options include cable and connector.
FEATURES
ꢀ Weldable, Optional Process Fittings
ꢀ ±±025 Pressure Non-linearity
ꢀ ±ꢀ0±% Temperature Performance
DIMENSIONS
ꢀ ±±025 Interchangeable Span
w/PROCESS FITTING OPTION
w/BACK END OPTIONS
BASIC SENSING ELEMENT
'A' THREAD
(provided by gain set resistor)
¯.370/.373
[¯9.40/9.47]
DIAPHRAGM,
.001 [0.03] THICK
WELD RING
ꢀ Solid State Reliability
'B' DIM
.10 [2.6]
.225 [5.7]
.26 [6.7]
ꢀ Low Power
.051 [1.30] MAX
SPACER, %%c.50 [12.7]
.02 [0.5]
6.00.25
[152.46.4]
3X .22 [5.6]
EPOXY STRAIN RELIEF
.28 [7.1]
STANDARD RANGES
RIBBON CABLE, 26 AWG
(CONDUCTOR #1 w/RED STRIPE)
.46 [11.6]
4X ¯.018 [0.46]
+O
Range
psia
●
psis
●
-E
(BALL SEAL)
.09 [2.2] SQ
.600 [15.2]
CONNECTOR, FEMALE,
MOLEX P/N 50-57-9406
(OR EQUIVALENT)
± to ꢀ±±±
± to 3±±±
± to 5±±±
.100 [2.54] CENTERS
●
●
.53 [13.4]
+E
-O (LONG PIN)
PAD/CNDTR #1
%%C.124 [3.15] B.C.
%%C.545 [13.84]
%%C.33 [8.3]
●
●
5X .050
[1.27]
PROCESS FITTING DIMENSIONS
%%C.550 MAX
[%%c13.97]
'A' DIM
'B' DIM
.59 [15.1]
.72 [18.4]
.77 [19.6]
.75 [19.1]
.88 [22.2]
.71 [18.1]
'C' DIM
5/8 [15.9] HEX
5/8 [15.9] HEX
3/4 [19.0] HEX
7/8 [22.2] HEX
7/8 [22.2] HEX
7/8 [22.2] HEX
1/8-27 NPT
1/4-18 NPT
1/4-19 BSP
1/8-27 NPT
1/4-18 NPT
7/16-20 UNF
COMP BOARD
VIEW SHOWN w/o CABLE
AND CONNECTOR FOR CLARITY
'C' DIM
ALL DIMENSIONS ARE IN INCHES [mm].
ALL PROCESS WETTED PARTS
ARE 316 SERIES STAINLESS STEEL.
VIEW SHOWN w/o CABLE
AND CONNECTOR FOR CLARITY
1-72
ISO – Wide Temperature Range