Tel-Tru P521 Specifications

P521

Differential Pressure Transmitter

Precision Grade--

High Line Differential Pressure Measurement

Designed for many markets/applications

Tel-Tru's P521 differential pressure transmitter is designed for
end users and OEM ‘s where ruggedness, high performance, and
reliability are required at a competitive price. This product is
modular and is configurable to meet our customers' exact needs.

Manufactured for extended life cycle

Every P521 is built using advanced manufacturing techniques
to ensure symmetry between the HI and LO ports. Symmetry,
along with automated welding procedures and extreme
environmental burn-in give Tel-Tru's differential pressure products
excellent performance and reliability over time and at high elevated
line pressure.

Entirely welded 316L SS pressure cavities

The P521 pressure ports all welded 316L SS ‘O’-Ring free
design make it ideal for high cyclical applications, capillary filled
systems, or applications where a guaranteed leak free system is
needed.

Certification

Each P 521 transmitter is shipped with a NIST traceable calibration certificate.

CE

Conforms to EN50081-2 and EN50082-2

Wet / Wet

DP

Standard Features

Ranges from 30 psi through 5k psi

5X over-pressure protection
316L SST wetted parts
Stability less than ±0.25% per annum

Available Options

Line pressure up to 10k psi

20X over -pressure protection
All Hastelloy C-276 wetted parts (available to NACE)
Accuracy to ±0.1% FSO

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

Shown with optional Mini-DIN connector

P521 Pressure Transmitter

High Line Differential Pressure Measurement
0-30 psid through 0-5,000 psid

Electrical

Excitation
P521A, P521B 8-38 Vdc*
P521C 2-15 Vdc
Output
P521A 4-20 mA
P521B 0-5 Vdc*
P521C 1-2 mV/V*
Zero Balance =±1% FSO
FSO Setting =±1% FSO
Resolution Infinite (±.001% FSO usable)
Response Time
P521A, P521B < 5 mS
P521C < 1mS
Insulation Resistance 1000 MO @ 50 Vdc
Reverse Polarity Protected
Warm-up < 10 mS
Power Supply Effect =±.002% FSO per V input (P521A, P521B)
EMI/RFI Internal Filtering (P521A, P521B)
Short Circuit Protected Up to 40 Vdc (P521A, P521B)

Mechanical

Pressure Ranges
Range a: 0-30 through 0-200 psid

Range b: 0-300 through 0-1,000 psid
Range c: 0-2k through 0-5,000 psid

(Customer may specify any range/eng. unit FOC)

Line Pressure
Range a: 1,000 psi
Range b: 3,000 psi
Range c: 10,000 psi
Proof Pressure 5X Full Scale either side (10k psi
Burst Pressure

Range b: Minimum 10,000 psi
Range c: Minimum 12,000 psi

Materials
Wetted Parts 316L SST*
Non-wetted Parts 316L SST plus electrical connector
Pressure Port ¼”-NPT Female*
Electrical Connector NEMA 4X cable exit (24” cable)*
Dimensions per outline below
Weight 13 oz

Range a: Minimum 5,000 psi

max)*

Performance

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

combined effects of non-lineartiy, hysteresis & repeatability)

(
Static Pressure Effect
Range a: =±1.5% FSO per 1k psi
Range b: =±1% FSO per 2k psi
Range c: =±1% FSO per 5k psi
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

Environmental

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

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

Outline

1/4" NPT (F)

H

L

Shown with optional Mini-DIN connector