Compact, heat-resistant type purgemeter formeasuring liquids

P-830
Purgemeter■ OUTLINE
With improved structure and materials, the P-830 features a heat
resistance of up to 130ºC.

■ MAJOR APPLICATIONS
Cooling-water lines for semiconductor production equipment■ STANDARD SPECIFICATIONS
Liquid (Equivalent to water：Density 1.0ｇ/ｃｍ 3,
Viscosity 1.0 mPa・s)
Min. 0.1 to 1 L/min
Water
Max. 1.5 to 7 L/min・When selecting a ﬂow range, refer to "Index &Measuring range
Quick Reference for P Series Purgemeters"(TG-S0001).
・When selecting a ﬂow range,refer to thestandard ﬂow rate table.
Range ability
10：1（10：2 for some models）
Indication accuracy±10％ F.S.
Fluid pressure
Max. 1 MPa
Fluid temperature
Max. 130℃
Wetted part SCS14/SUS304
Tapered tube Heat-resistant glass
Fluoro rubber (Max. 130℃ )・The maximum ﬂuid temperature for gasket
GasketMaterialmaterial may vary depending on usage andambient conditions.
Mounting
Aluminum
plate
Cover
Acrylic
Rc : 3/8"
Process Connection
NPT : 3/8"
SW : 3/8"（Standard）
Mounting
Screw mount on the panel front (Standard)
Massapprox. 0.5ｋｇ
Measuring ﬂuid

■ BASIC MODEL CODE
Model CodeP-831

̶ □ □ ̶ 6 □ ̶ □ □Valve̶ U̶ Z0A

Alarm output

BCD

Wetted partsmaterial
Gasket material

FZ

TypeGeneral
Reed switch type alarm unit
UL-approved
PAU optical alarm unit

Process connection type

Availability
×○×

For CE approval, refer to "Index & Quick Reference for P Series
Purgemeters" (TG-S0001).

■ STANDARD FLOW RATE TABLE
For alarm output code of 0Water
0.1 to 1
L/min
0.4 to 1.5
L/min
0.2 to 2
L/min
0.3 to 3
L/min
0.4 to 4
L/min0.5 to 5
L/min
1.5 to 7
L/min

For alarm output codes of A to DWater
Alarm setting range
0.1 to 1
L/min
0.1 to 0.8
L/min
0.4 to 1.5
L/min
0.4 to 1.2
L/min
0.2 to 2
L/min
0.4 to 1.6
L/min
0.3 to 3
L/min
0.6 to 2.4
L/min
0.4 to 4
L/min
0.8 to 3.2
L/min
0.5 to 5
L/min
1 to 4L/min
1.5 to 7
L/min
2.1 to 5.6
L/min

̶ N
̶ S
̶ Z

Process connection size

Notes

Refer to "Index &Quick Reference forP Series
Purgemeters" (TGS0001).

SCS14/SUS304̶ 6̶ R■ ALARM CONTACT AND OUTPUT

Descriptions
Not provided
OutletSpecialNot provided
Reed switch alarm (LO)Reed switch alarm (LC)
Reed switch alarm (HO)Reed switch alarm (HC)̶ 0

Fluoro rubber(Standard)SpecialRc
NPT female
SW（Standard）
Special3 3/8"Z Special■ OTHER AVAILABLE OPTIONS
You can specify the following options:
Length of reed switch lead wire, double graduations, special graduations,built-in rubber ﬁtting type, various ﬁtting types, etc.
For details, refer to "Index & Quick Reference for P Series Purgemeters"(TG-S0001).

Although other flow rate specifications are available, some flow ranges
need to be changed. Contact us for details.

TG-F1101-3E
4th edition Apr 2019 K
1st edition Jul 2014 K

P-830Purgemeter■ ORDERING INFORMATION
Basic model code

Items to be speciﬁed
①
②
③
④
⑤
Fluid name − Flow range − Press. − Temp. − Mounting option

Ｐ-831 □ - □□ - □□ - □□（Select in the model code table.）−⑥Other options（Refer to "Index & Quick Reference for P Series Purgemeters" (TG-S0001).）■ DIMENSIONS● Standard typeP − 831 − U0 − 6F − R3
■ Screw mounting on the panel front■ Valve at the outlet

Panel thickness: Max. 2.5 mm

Panel cutPanel thickness: Max. 2.5 mm

Note: Screw oﬀ Rc3/8 or 3/8NPT ﬁtting before mounting on a panel.

● Reed switch alarm typeP − 831 − U □− 6F − S3
■ Screw mounting on the panel front■ Valve at the outlet
2-3/8SW

Panel cut
Note: · Use non-magnetic material for the panel when the alarm output code is one of A to D.
· Screw oﬀ Rc3/8 or 3/8NPT ﬁtting before mounting on a panel.

● Standard material
Parts name
Body
Tapered tube
Float
Float rodO-ringValve
Fitting
Mounting plate
Cover○○○○○○○

Standard material
SCS14
Heat-resistant glass
SUS316
SUS316
Fluoro rubber
SUS304
SUS304
Aluminum
Acryl

Available material−−−−−
SUS316
SUS316−−

Parts marked ○ come in contact with the measuring fluid.
· SUS316 may be used instead of SUS304 due to production reasons.
· ASTM or AISI materials equivalent to JIS materials may be used due toproduction reasons.

* Specification is subject to change without notice.

Head Office : Shiba Toho Building, 1 – 7 – 24 Shibakoen, Minato-ku, Tokyo 105 – 8558
Tel : +81-3 – 3431 – 1625 (KEY) ; Fax : +81-3 – 3433 – 4922
e-mail : overseas.sales@tokyokeiso.co.jp ; URL : http://www.tokyokeiso.co.jp
2TOKYO KEISO CO., LTD.

TG-F1101-3E