Description
HAWK PT7 series flush diaphragm pressure transmitters and transducers have been designed for measurement of viscous and contaminated fluids at high quality performance, reliability and cost. The semi-flush front ceramic diaphragm design minimizes the dead space in order to avoid the highly viscous medium to clog the pressure sensing element. It’s good ideal for the system to require flushing to prevent contamination when changing pressure medium. The non-metallic wetted parts (the parts contacted with the media directly) design let it use for applications where a typical metallic components could not withstand the process media such as acids, chlorine and etc.
Typical Applications
- Pharmaceutical Industry
- Chemical Fluid Level Measurement
- Chemical Tank Level Measurement
- Chemical Industries
Specifications
PERFORMANCE
Accuracy at 25oC (Linearity, Hysteresis, Repeatability):
< ±0.25% F.S…..PT73.
< ±0.5% F.S…..PT74.
Stability at 25oC:
< ±0.2% F.S. (PT73).
< ±0.4% F.S. (PT74).
Thermal Zero Shift:
< ±0.02% F.S./ oC…..PT73.
< ±0.04% F.S./ oC…..PT74.
Thermal Span Shift:
< ±0.03% F.S./ oC.
ENVIRONMENTAL
Operating Temperature Range:
-0……..70 oC (PP, PVC),
-25…..85 oC.
Storage Temperature Range:
-25…..85 oC.
Compensated Range:
-40…..135 oC.
Weatherproof Rating (Enclosure):
IP65, NEMA4/4X or better.
PHYSICAL DATA
Housing (Case):
304 Stainless Steel (316SS Option).
Fitting Materials:
PP, PVC or PVDF.
Ceramic Sensor:
Aluminum Oxide Al2O3 (96%).
Note: For high pressure applications, the fitting should be in metal material with PTFE coating (P>300PSI).
Seal Material:
FPM (Viton), NBR (Buna Rubber), MVQ (Silicone Rubber), CR (Neoprene), EPDM (Ethylene Propylene), FFKM.
Note: The wetted parts including fitting, ceramic sensor and sealing will be contacted with the media directly, please choose the appropriate material complied to your application.
Process Fitting (Connection):
G3/4 (3/4″ PF), G1/2 (1/2″ PF) – Standard, 1/2″ NPT, 3/4″ NPT, Others on request.
Electrical Connector:
Terminal Box to DIN43650 (IP 65),
Shutter Type Cable (IP 65),
Flexible Cable (IP 65),
Female 1/2″ DIN (IP 65),
M12 Cable (IP 65).
ELECTRICAL DATA
Voltage Output
Output Signal (Voltage, 3 Wires):
0-10V, 0-5V, 0.5-4.5V, 1-5V, 1-6V.
Power Requirement (Voltage):
15-32VDC (Normal 24VDC, Voltage).
Load Resistance (Voltage):
>10K Ohms.
Current Output
Output Signal (Current, 2 Wires):
4-20 mA.
Power Requirement (Current):
10-32VDC (Normal 24VDC, Current).
Load Resistance (Current):
≤(Supply Voltage -10V) / (0.02A)Ohms.
