Tel-Tru P431 Specifications

P431

Submersible Pressure Transmitter

Precision Grade--

Shallow or Deep Well Level Instrument

Designed for low cost of ownership

Tel-Tru's P431 Submersible Pressure Transmitter is
designed for low cost of ownership for level /depth
measurement applications in shallow or deep wells. Key

features of the P431 are its long term stability, internal protection
from lightning via dual gas discharge tubes, internal EMI/RFI
filtering, double sealed cable exit and a maintenance free vent
filter.

Manufactured for extended life cycle

Every P431 is built using advanced manufacturing
techniques to ensure the integrity of the waterproof seal.
Double sealing techniques are used and 100 % of all P431
are submerged at our factory for at least 24 hours.
Automated welding procedures and extreme environmental
burn in, along with the internal protection against the harsh
well conditions give customers the confidence of product
reliability over time.

Low power / alternate materials available

From 0-5ft H
available in either a 4-20 mA or 0-5 Vdc output signal. For
remote or battery powered systems, a low power option is
available from a 5 Vdc, 1.5 mA supply. To futher enhance
battery life, warm-up time is less than 3 mS. Other options
include alternate materials of construction or Tefzel

Certification

Each P431 is delivered with a NIST traceable calibration record
which details the input/output characteristics.

O through 0-1500ft H2O, the P431 is

2

©

cable.

Internal Lightning Protection

Maintenance Free

CE

Conforms to EN50081-2 and EN50082-2

Standard Features

Moisture Free/Maintenance Free Vent Filter
EMI/RFI filtering with lightning protection
Standard accuracy ±0.25% FSO
Double sealed cable exit

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

P431 Pressure Transmitter

High Stability Depth/Level Transmitter
0-5ft H

O through 0-1,500ft H2O

2

Product Specifications

Electrical

Excitation 8-38 Vdc*
Output
P431A 4-20 mA
P431B 0-5 Vdc*
Zero Balance =±1% FSO
FSO Setting =±1% FSO
Resolution Infinite (±.001% FSO usable)
Response Time <5 mS
Insulation Resistance 1000 MO @ 50 Vdc
Reverse Polarity Protected
Warm-up < 3 mS
Power Supply Effect =±.002% FSO per V input
EMI/RFI Internal Filtering
Short Circuit Protected Up to 40 Vdc
Lightning Protected Dual gas discharge tubes

Mechanical

Pressure Ranges 0-3 through 0-750 psi

(Customer may specify any range/eng. unit FOC)
(Absolute, vacuum, compound available options)

Proof Pressure 2X Full Scale
Burst Pressure 5X Full Scale
Materials 316L & 15-5 SST*
Pressure Port PVC Cap*
Electrical Connector Submersible cable exit with 10ft
vented polyurethane cable*
Dimensions per outline below
Weight Nominal 10 oz (excluding cable)

Performance

Static Accuracy =±0.25% FSO* (BFSL, RSS)

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

Repeatability =±0.05% FSO
Temperature Effects =±1.5%* FSO over comp range

(combined effects of Zero & FSO with reference at 70

Long Term Stability =±0.25% FSO per year

Note: specifications are subject to change.

PVC bullet nose

0.125" DIA. 4 holes

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

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F)

Environmental

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

* Options available

Outline

Submersible cable

Breather tube