ENTEGRIS, INC.
Customer Service Tel. 763-502-0200 Customer Service Fax 763-502-0300
11
NT® PRE SSU RE TRAN SDUCER USER GUIDE
N T® PRESSURE TRA NSDUC ER US ER GUID E
10
Customer Service Tel. 763-502-0200 Customer Service Fax 763-502-0300
ENTEGRIS, INC.
Operating Environment
The pressure transducer is to be
mounted in a well vented and con-
trolled environment. Refer to the
Reference
section on page 13 for
additional specifications.
Process Connections
To avoid possible pressure leaks,
make sure all process connections
have been performed in accordance
with the Mechanical Installation
guidelines on page 6.
Pressure Transducer
Cover Assembly
NT
®
Pressure Transducer covers
are factory sealed and should not be
tampered with or opened. Opening
the cover shall void the product
warranty.
NOTE:
Any attempt to remove or
tamper with the transducer cover
will void the warranty and damage
the unit.
Temperature Requirements
The pressure transducer is rated
for use with fluids at process
temperatures between 50° to 95°F
(10° to 35°C) under normal
operating conditions.
Pressure Limits
TRANSDUCER
MAX. PRESSURE LIMIT
RANGE
@73°F (23°C)
-12 to 30 PSIG
45 PSIG
(-83 to 207 kPa)
(310 kPa)
-12 to 60 PSIG
90 PSIG
(-83 to 414 kPa)
(621 kPa)
-12 to 100 PSIG
150 PSIG
(-83 to 690 kPa)
(1034 kPa)
WARNING!
The pressure limits for NT®
Pressure Transducers models
4150 and 4250 decrease sig-
nificantly for temperatures
above 95
°
F (35
°
C) Please
consult the factory.
Pressure Reference Accuracy
The accuracy of the pressure trans-
ducer output is ±1% of span. For
example, a -12 to 30 PSIG ranged
pressure transducer has a span of
42 PSIG and an accuracy of ±0.42
PSIG. This accuracy includes the
effects of linearity, hysteresis and
repeatability, measured at room
temperature.
Unit Operation
Linear Output Signal
The output signal of the NT
®
Pressure
Transducer is a linear function pro-
portional to the applied pressure.
Pressure measurement
-12 PSIG
Full scale
20 mA
4 mA
