Tel-Tru P221 Specifications

P221

Flush Diaphragm Pressure Transmitter

Precision Grade--

"Non-Filled” Flush Diaphragm Sensor

Designed for the highest system integrity

Tel-Tru's P221 Pressure Transmitter is designed for the OEM
and end user where ruggedness, high performance, and reliability
are required at a competitive price. Key feature of the P221 is its

non oil –filled sensing element. The sensing diaphragm is machined
from a solid piece of steel, and can withstand the most abrasive /
cyclical applications. No thin diaphragm to break, to oil or to leak.

Manufactured for extended life cycle

The P221 is designed to last in high cyclical environments
with or without the presence of water-hammering or spiking.
Advanced manufacturing techniques, extreme environmental burn-in
and thorough residual stress relieving procedures ensure the
P221 maintains its performance over time.

Designed to meet Intrinsically Safe standards

The P221 is designed to meet or exceed the standards
for IS. FM/CSA approvals are pending.

Certification

Every P221 is shipped with a NIST traceable calibration certificate.

Hastelloy or Inconel sensors available

NEMA 4X Packaging

CE

Conforms to EN50081-2 and EN50082-2

Standard Features

±=0.5% FSO Static Accuracy
NEMA 4X Packaging
±=0.25% FSO /YR stability

Available Options

±=0.25% FSO Static Accuracy
Alternate Wetted Materials
Zero/Span Controls/ Shunt Cal

Note: specifications are subject to change.

Tel-Tru Manufacturing Co.
408 St. Paul Street
Rochester, New York 14605 USA

Phone: [phone] • 800-232-5335 • Fax: [phone] • E-mail: [e-mail] • Web: www.teltru.com

P221 Pressure Transmitter

Precision Grade Flush Diaphragm
0-100 psi through 0- 7,500 psi

Product Specifications

Electrical

Excitation
P221A, P221B 8-38 Vdc*
P221C 2-15 Vdc
Output
P221A 4-20 mA
P221B 0-5 Vdc*
P221C 1-2 mV/V*
Zero Balance =±1% FSO
FSO Setting =±1% FSO
Resolution Infinite (±.001% FSO usable)
Response Time
P221A, P221B < 3 mS
P221C < 0.5 mS
Insulation Resistance 1000 MO @ 50 Vdc
Reverse Polarity Protected
Warm-up < 10 mS
Power Supply Effect =±.002% FSO per V input (P221A, P221B)
EMI/RFI Internal Filtering (P221A, P221B)
Short Circuit Protected Up to 40 Vdc (P221A, P221B)

Performance

Mechanical

Pressure Ranges 0-100 through 0-7,500 psi
(Customer may specify any range/eng. unit FOC)

(Absolute, vacuum, compound available options)

Proof Pressure 2X Full Scale*
Burst Pressure 5X Full Scale* (15k psi max)
Materials
Wetted Parts* 15-5 SST*
Non-wetted Parts 316 SST plus electrical connector*
Pressure Port ¾-16 UNF Flush with ‘O’-Ring*
Electrical Connector NEMA 4X cable exit (24” cable)*
Dimensions per outline below
Weight nominal 10 oz

Environmental

Compensated Temp Range 0 to 170 oF
Operating Temp Range -40 to 200 oF
Storage Temp Range -40 to 250 oF

Static Accuracy =±0.5% FSO* (BFSL, RSS)*

(combined effects of non-linearity, hysteresis & repeatability)

Repeatability =±0.1% FSO
Temperature Effects =±1.5% FSO over comp range*

(combined effects of Zero & FSO with reference at 70 oF)

Long Term Stability =±0.25% FSO per year

Note: specifications are subject to change.

Tel-Tru Manufacturing Co.
408 St. Paul Street
Rochester, New York 14605 USA

Phone: [phone] • 800-232-5335 • Fax: [phone] • E-mail: [e-mail] • Web: www.teltru.com

*Options Available

Outline