Ultra high purity pressure gauge with transmitter_PT840 series
PT840 series
Service intended
PT840 series are specially designed for the ultra-high purity gas distribution system used in a semiconductor, electronic, medical, biotechnology and pharmaceutical industry.
| Nominal diameter | 50 mm (2") |
| Gauge accuracy | ±1.0 % of full scale |
| Transmitter accuracy | ±0.25 % of full scale |
| Scale range | Refer to range code |
| Working pressure | Steady pressure : 75 % of full scale value Fluctuating pressure : 67 % of full scale value |
| Working temperature | Ambient : -40 ~ 65 |
| Temperature effect | Accuracy at temperature above and below the reference temperature (20 ℃) will be effected by approximately ±0.4 % per 10 ℃ of full scale |
Standard features
Mechanical
| Pressure connection | Type 316L SS electropolished low mount or center back mount surface finish Ra≤0.25 ㎛ ■ ¼" NPT male thread ■ VCR® male or female face seal fitting |
| Element | Type 316L SS <6 MPa : C-type bourdon tube ≥6 MPa : Helical type bourdon tube |
| Case | Type 304SS, Electropolished with pressure relief |
| Movement | Stainless steel |
| Dial | White PVC with pointer stop pin With black/red lettering, dual pressure scale (bar/psi) |
| Pointer | Black painted aluminium alloy |
| Ring and window | Twist-lock polycarbonate |
| Helium leak rate | Tested to confirm leakage rates of less than 10 mbar • ℓ/sec |
Standard features
Electrical
| Connection | 26 AWG, Teflon insulated 10 feet leads (2 black wires) |
| Power | DC 24 V |
| Out put | 4 ~ 20 mA, 2 wire system |
Đồng hồ đo áp suất PT840 Wise - Đại lý wisecontrol Việt Nam
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