Page 3 - UHP catalog_2021

SPECIFICATIONS l WISE CONTROL

ULTRA HIGH PURITY PRESSURE GAUGE
P810 P820 P830

MODEL
P810 Series (316L Type)_Ultra High Purity Pressure Gauge (EP Grade)
P820 Series_Ultra High Purity Pressure Gauge (EP Grade / Double Melt)
P830 Series_High Purity Pressure Gauge (BA Grade)
NOMINAL DIAMETER
P810 / P830 Series : 35 (1½"), 50 (2") and 63 mm (2½")
P820 Series : 50 (2") and 63 mm (2½")
ACCURACY
P810 / P830 Series
Grade A : 50 (2") and 63 mm (2½")
Grade B : 35 (1½"), 50 (2") and 63 mm (2½")
P820 Series
Grade A (ASME B40.1) : 50 (2") and 63 mm (2½")
Grade B (ASME B40.1) : 50 (2") and 63 mm (2½")
SCALE RANGE
-0.1 ~ 0 to 0 ~ 28 MPa
WORKING TEMPERATURE
Ambient : -40 ~ 65 °C / Fluid : Max. 100 °C
PRESSURE CONNECTION
Type 316L Stainless steel Electropolished low mount or
center back mount surface finish Ra≤0.25 ɗ
● 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
COVER AND WINDOW
Twist-lock polycarbonate
HELIUM LEAK RATE
-9
Tested to confirm leakage rates of less than 10 mbar • ℓ/sec

ULTRA HIGH PURITY PRESSURE SWITCH
P840

MODEL
P840 Series (316L Type)
SERVICE INTENDED
P840 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")
SWITCH POINT ACCURACY
±2.0% of full scale
SCALE RANGE
0 ~ 28 MPa
PRESSURE CONNECTION
Type 316L Stainless steel Electropolished low mount or center back mount
surface finish Ra≤0.25 ɗ
• 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
COVER AND WINDOW
Twist-lock polycarbonate
HELIUM LEAK RATE
-9
Tested to confirm leakage rates of less than 10 mbar • ℓ/sec
CONNECTION
26 AWG, Teflon insulated, 10 feet leads (2 black wires)
MAXIMUM POWER
10 watts DC, 12 VA/AC
MAXIMUM SWITCHING CURRENT
0.5 amps AC/DC noninductive
MAXIMUM SWITCHING VOLTAGE
28 V AC/DC