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MODEL 351 PRESSURE TRANSMITTER

3A approved, Flush Machined Diaphragm Sensor, Tri-Clamp Fitting

Viatran technology allows for accurate pressure measurement up to 1000 PSI. The transmitter also has no moving parts, isolation diaphragm, or oil fill to contaminate your process fluid.

Features

Many Options available

All Stainless Steel construction

A flush diaphragm inhibits bacterial growth and facilitates Clean in Place (CIP) systems.

The quick-disconnect Tri-clamp connections make these transmitters ideal for pharmaceutical, dairy and food processing applications where frequent cleaning is required.

Full Scale Pressure Range:  0 – 100, 400, 1000 PSIS, PSIA

Combined Accuracy (Non-Linearity, Hysteresis, Repeatability):  ≤0.35% FSO

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

Resolution:  Infinite

Long Term Stability:  ≤±0.25% FSO per 6 months

Pressure Connection Effect Zero Balance:  ≤±0.1%

Response Time (mechanical & electrical combined):  ≤50 mSec

Temperature Effect on Zero:  ≤±2% FSO per 100°F (37°C)

Temperature Effect on Span:  ≤±1% FSO per 100°F (37°C)

Temperature Effect on Calibrated Signal:  ≤±1& FSO per 100°F (37°C)

Operating Temperature Range:  0°F to 180°F (-17°C to 82°C)

Process Temperature Range:  -65°F to 250°F (-53°C to 121°C)

Storage Temperature Limits:  -65°F to 250°F (-53°C to 121°C)

Sensor Technology:  Bonded foil strain gage

Supply Voltage:  12 to 30 Vdc

Power Supply Regulation:  ≤±0.04% FSO per Volt

Output Signal:  4 – 20 mA at 70°F (21°C)

Load Impedance:  1925 Ohms max at 40 Vdc

Ripple:  ≤±0.08% FSO

Zero Balance:  4 mA ±5% FSO at 70°F (21°C)

Zero adjustments:  5:1 turndown, externally 30 PSI min range

Range Calibration Signal:  20% of ±1.0% of FSPR, externally switched. Exact signal to pressure correlation is provided with each unit

Circuit Protection:  Varistor protected across the input leads for surges above 38 V and currents to 250 Amps peak with a pulse width of 8-20 µSecs. Reverse polarity protected

Bridge Resistance:  5000 Ohms nominal

Insulation Resistance:  ≤100 MegOhms at 50 Vdc

RFI/EMI Suppression:  ≤1% FSO output change at 30 V meter, 10-1000 mhz

Electrical Connection:  1/2” NPT male conduit, 3 wires, 18 AWG, 36”

Color Wiring:

Red            +Power/Signal

Black          -Power/Signal

Green          Case Ground

Pressure Connection:  1 1/2”, 2”, 2 1/2” Tri-clamp

Proof Pressure:  1.5 times rated range

Burst Pressure:  ≤3 times rated range or max orange of clamp and tubing, whichever is less

Weight:  30 oz

Enclosure Materials:  15-5, 304, and 316 stainless steel

Wetted Materials:  316 stainless steel

Identification:  Laser etched onto body

Measured Fluids:  Any gas or liquid compatible with 316 stainless steel

BZ:  Mini change connector

DG:  Improved temperature compensation

DH:  Special range (350 only)

EA:  Special calibration

JJ:  Direct mount indicator with Explosion Proof housing attached to transmitter

MD:  FM Label

NH:  Customer specified identification

PW:  1/8 DIN digital indicator

ZP:  CIA-C814-10-6P-10-0A1

  • Tri-Clamp Clamp
  • Tri-Clamp Gasket
  • Conduit Connector