Model 351 Pressure Transmitter
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.
PERFORMANCE
| Full Scale Pressure Ranges | 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) |
ELECTRICAL
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Sensor Technology
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Bonded foil strain gage
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Supply Voltage
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9 to 40 Vdc
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Power Supply Regulation
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≤±0.04% FSO per Volt
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| 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 Adjustment | 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 | 1/2” NPT male conduit, 3 wires, 18 AWG, 36” | |
| Wire Color Code |
Red +Power/Signal Black -Power/Signal Green Case Ground |
MATERIALS OF CONSTRUCTION
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Enclosure Materials
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15-5, 304, and 316 stainless steel
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Wetted Materials
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316 stainless steel
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| Identification | .Laser etched onto bod | |
| Measured Fluids | Any gas or liquid compatible with 316 stainless steel |
MECHANICAL
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Pressure Connection
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1 1/2”, 2”, 2 1/2” Tri-clamp
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Proof Pressure
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1.5 times rated range
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Burst Pressure
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≤3 times rated range or max orange of clamp and tubing, whichever is less
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OPTIONS
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BZ
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Mini change connector
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DG
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Improved temperature compensation
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DH
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Special range
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| 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 |