Sanitary pressure transmitters

Model 359 Sanitary Level Transmitter

Model 359 Sanitary Level Transmitter

359 is designed for 3A sanitary clean in place applications. 359 comes standard with Hastelloy wetted parts, providing excellent corrosion resistance to caustic materials. 359 has sealed external adjustments and capable of being ranged down if lower range measurements are required.


Full Scale Pressure Range (FSPR) 0-100", 300", 750", 900" WC
  Combined Accuracy (Non-Linearity, Hysteresis, Repeatability) ≤±.2% FSO
  Full Scale output (FSO) 16 mA
Resolution Infinite
  Long Term Stability ≤±0.25% FSO per 6 months
  Response Time
(Mechanical & Eletrical Combined)
≤10 mSec to reach 90% FSO
  Thermal recovery time 50 Sec to reach 90% FSO
  Temperature Effect on Zero ≤±1.5% FSO per 100°F
  Temperature Effect on Span ≤±1.5% FSO per 100°F
  Temperature Effect on Calibration Signal ≤±2.0% FSO per 100°F
Compensated Temperature Range 35°F to 170°F
Process Temperature Limits -20°F to 220°F
High Temperature Option -20°F to 300°F at 70° ambient temperature
Ambient Temperature Limits -40°F to 250°F


Supply VoltSensor Technologyage:
9 to 30 VDC
Sensor Technology Silicon Piezoerestictive
Power Supply Regulation
≤±0.01% FSO per volt
Output Signal
4 to 20 mA
  Load Impedance 1500 Ohms max at 40 VDC
  Zero Balance 4 mA ±1% FSO
  Zero Adjustment -100% FSPR (Elevation) to 80% FSPR (Suppression). Coarse and fine adjustments standard
  Span 20 mA ±1% FSO
  Span Adjustment 3:1 Ranging
  Calibration Signal Accuracy <±0.2% FSO. The exact signal to pressure correlation is provided with each unit.
  Circuit Protection Varistor protected across the input leads for surges above 55V and currents to 250 Amps peak with a pulse width of 8 to 20 µsec. Reverse polarity protected.
  Insulation Resistance > 200 MegOhms to case ground
  RFI/EMI Suppression Negligible effect to 500 Mhz at 5 watts direct contact
  Electrical Connection 1/2" NPT (M), 3 wires, 18 AWG, 36" Length
Wire Color Codes


Red +Signal

Black -Signal

Green Case Ground


Enclosure Materials
Inconel X750 and 316L stainless steel
Wetted Materials
Inconel X750 and 316L stainless steel
Enclosure Classification
NEMA/Type 4X (1P68)


Pressure Connection
Flush mount sensor mates with
Proof Pressure:
2x rated range
Burst Pressure:
3x rated range
  Oil Fill Less than 0.66 ml of DC 200 silicone oil
  Measured Fluids Any gas or liquid compatible with Hastelloy C-276 steel and silicone O-Ring
Weight 4 lbs. nominal
Enclosure Materials 316L stainless sleel
Wetted Materials Hastelloy C-276
Identification Laser etched onto body


Short length for single wall tanks
Extra long length for King Receiver #1777-3
Viton O-Ring
  GB Teflon O-Ring
  GE Buna-N O-Ring
  NSR Non Standard Ranging