MODEL 347 PRESSURE TRANSMITTER

4-20 mA output, 0-3 to 20K psi

347 offers a solid, reliable pressure transducer with excellent noise immunity, repeatability and stability.

Features

All Stainless Steel construction

Specifications

Model 347’s are found in oil and gas, hydraulic control, test and many other applications requiring stable and reliable pressure measurements with good accuracy at a fair price.

They can be configured in a variety of ways – from a sealed housing with a cable to allow it to be used in outdoor environments to a unit ranged to allow for high pressure spikes with a solid machined diaphragm.

We welcome your inquiries to provide you with a solution tailored to your needs.

Performance

Full Scale Pressure Range:

0-15, 30, 50, 75, 100, 200, 300, 500 PSIA
0-3, 5, 10, 15, 30, 50, 75, 100, 200, 300, 400, 500, 750, 1,000, 1,500 PSIG
2K, 3K, 4K, 5K, 7.5K, 10K, 15K, 20K PSIS
0-5,10 & 15 PSIV*

Improved Accuracy (Non Linearity): ±0.35%** (** Range Dependent)

Non-linearity (Best Fit Straight Line): ≤±0.50% FSO

Hysteresis: <0.25% FSO

Full Scale Output (FSO): 16 mA ±2% at 70°F (21°C)

Resolution: Infinite

Long Term Stability: ≤±0.5% FSO per 6 months

Compensated Temperature Range: 70°F to 170°F (21°C to 76°C)

Maximum Operating Temperature: 200°F (93°C)

Minimum Operating Temperature: -20°F (-28°C)

Storage Temperature Limits: -40°F to 250°F (-40°C to 121°C)

Thermal Effect on Zero: ≤±2% FSO per 100°F Typical

Thermal Effect on Span: ≤±2% FSO per 100°F Typical

Zero Adjust: ±5% of FSO (nominal)

* For PSIV and Compound Range units, thermal effect on zero is ≤±3.0% per 100°F

Electrical

Supply Voltage: 8 to 30 Vdc

Power Supply Regulation: ≤±0.08% FSO per Volt

Output Signal: 4 to 20 mA

Load Impedance: 1050 Ohms max at 30 Vdc

Circuit Protection: Reverse polarity protected. CE marked

RFI / EMI: CE EMC compliant as per IEC EN 61326-1 and EN 61326-2-3 Annex BB

Voltage Spike: Withstand 1000 volt spike per EN 61000-4-5

Insulation Resistance: <5 nS conductance

Input current: 4-20 mA

Response Time: <2 mSec for 10-90% change in output

PIN OUTS:

Pin 1 + Power / Signal

Pin 2 – Power / Signal

Pin 3 No Connection

Ground Spade Case ground

Mechanical

Pressure Connection: 1/4” NPT female

Proof Pressure:

≤200 PSI 3x
≥ 300 PSI 1.5 times FSPR or 25K PSI (1723 bar), whichever is less

Burst Pressure: 5 times FSPR or 30K PSI (2068 bar), whichever is less

Pressure Cavity Volume: 0.06 cubic inches, nominal

Materials Of Construction

Wetted Parts:

0-3 thru 200 PSI (0-1.0 thru 13.7 bar) – 316L stainless steel
0 – 300 PSI (20.6 bar) and above – 15-5PH stainless steel

Weight: 8 oz nominal silicon sensor, 10.5 oz nominal (strain gage)

Identification: Synthetic label

Mounting: May be supported by process piping

Option

DH: Special Range

DM: Modified Full Scale Output (>5 Vdc)

DN: Improved Linearity 0.35% FSO (BFSL) for 0-3 thru 0-20,000 PSI

DX: Modified Full Scale Output (≤5 Vdc)

NH: Customer Specified Marking

Note:

Vented gage units should only be installed in environments that allow the breather to remain dry and free from contamination.Application of some available options may affect standard performance.