Model 550 Pressure Transmitter
550 is designed to provide rugged performance while measuring harsh corrosive materials. The sensor is a stainless steel machined diaphragm, with no oil fill. The zero cavity flush sensor provides an easy clean surface with no clogging.
PERFORMANCE
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Full Scale Pressure Range (FSPR)
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0-50, 100, 150, 200, 250, 300, 500, 750, 1000, PSIG, PSIS, PSiA
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Combined Accuracy (Non-Linearity, Hysteresis, Repeatability)
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≤±0.45%
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Full Scale Output (FSO) |
16 mA at ±0.5% FSO | |
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Resolution
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Infinite
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| Long Term Stability: | ≤±0.5% FSO | |
| Pressure Connection Effect Zero Balance | ≤±0.5% FSO | |
| Mechanical & Eletrical Combined | ≤0.1mSec | |
| Temperature Effect on Zero | ≤± 2% FSO per 100°F (37°C) | |
| Temperature Effect on Span | ≤± 2% FSO per 100°F (37°C) | |
| Compensated Temperature Range | 0°F to 185°F (-17°C to 85°C) | |
| Operating Temperature Range | -40°F to 250°F (-40°C to 121°C) -Process |
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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12 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 | 1400 Ohms max at 40 Vdc | |
| Ripple | ≤1% FSO | |
| Zero Balance | 4 mA ±1% FSO | |
| Zero Adjustment | Not applicable | |
| Span Adjustment | Not applicable | |
| Range Calibration Signal | Not applicable | |
| 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 µSec. Reverse polarity protected | |
| Bridge Resistance | 5000 Ohms nominal | |
| Insulation Resistance | ≥ 2000 MegOhms at 50 Vdc | |
| RFI/EMI Suppression |
≤1% FSO output change at 30 V/meter, 10-1000 Mhz |
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| Electrical Connection | 1/2” NPT male conduit, 3 wires, 18 AWG, 36”L | |
| Wire Color Codes |
Red + Power/Signal Black - Power/Signal Green Case Ground |
MATERIALS OF CONSTRUCTION
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Enclosure Materials
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304 and 316 stainless steel
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Wetted Materials
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17-4PH NACE (Inconel X750 optional)
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Identification
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Laser etched onto bod
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| Measured Fluids | Any gas or liquid compatible with 17-4PH NACE | |
| Enclosure Classification | .NEMA 4X, 5, 6, 12 |
MECHANICAL
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Pressure Connection
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M44 X 1.25 fitting |
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Proof Pressure
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1.5 times rated range
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Burst Pressure Sensor
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≥ 3 times rated range or max range of clamp and tubing, whichever is less |
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| Weight | 16 oz |
OPTIONS
| Alernate Connectors | ||
| BZ | Micro change connector | |
| ZP | 6-pin hermetic (Bendix style) | |
| Performance Options | ||
| DG | Improved temperature compensation | |
| DH | Special range (550 only) | |
| EA | Special calibration | |
| JJ | Direct mount indicator with Explosion Proof housing | |
| JS | Direct mount indicator | |
| NH | Customer specified identification | |
| PW | 1/8 DIN digital indicator | |
| QB | Inconel wetted parts | |
| TW | Russia Intrinsic Safety |