Axial flow type, compact, inexpensive
For various cooling water systems

TW-080/ TW-090
MINI-TURBINE FLOWMETEROUTLINE
The TW-080 and TW-090 mini-turbine flowmeters are axial flow
type wheel flowmeters. Guided by the built-in vortex guide, thefluid flowing spirally rotates the wheel made of plastic magnet.
Thus the flow rate is measured by detecting the rotation of thewheel with a magnet sensor. The flowmeter is ideal for various
cooling water system with a compact design thanks to precision
casting and excellent cost performance.

FEATURES❑ Compact and light-weight by precision casting.
❑ Pulse or voltage output.
❑ Liquid can be purged by air from the downstream.
❑ Easy overhauling, cleaning and maintenance.
❑ Low price owing to intensive cost down.

STANDARD SPECIFICATIONS● Measuring fluid: Water and various liquids without solids			 (Viscosity: Less than 2 mPa･s)● Fluid pressure: Maximum 1.0 MPa (at 25℃ )● Fluid temperature: 0 to 60℃ (Without freezing)● Ambient temperature : 0 to 60℃ (Without freezing and			 condensation)● Installation: Horizontal or vertical● Flow direction: One way (indicated by the arrow on the			 body)● Accuracy: ± 3% F.S.

【TW-08 □ (voltage output) type】【TW-09 □ (pulse output) type】● Output: 0 to 5 V DC

● Output: Open collector pulse (Unscaled)● Power supply: 12 to 24 V DC, 18 mA● Pulse frequency: Actual measurement value is indicated● Load resistance: 100 kΩ or more			 on product name plate.

● Electrical connection : Connector
Note: Connectors and cables (up to 5 m) should be prepared● Power supply: 12 to 24 V DC, 12 mA● Load rating: Maximum 24 V DC, 15 mA		by the customer. If these are to be included, please no-● Electrical connection : 3 core cable AWG24 (1 m)		tify us when ordering.

● Construction: Protected against dripping water● Construction: Not waterproof			 (Equivalent to IP62)● Mass: Approx. 0.3 kg● Mass: Approx. 0.2 kg

MODEL CODE AND PRESSURE LOSS
Model code
TW-0Output□8

Voltage output: 0 to 5 V DC

9Range of ﬂow rate
Connection sizeDescription□Pulse output: Open collector
00.2 to 2 L/min

10.3 to 3 L/min

2

0.5 to 5 L/min

3

1 to 10 L/min

4

2 to 20 L/min

Rc1/4

Rc3/8

Model
Pressure loss (kPa)*
40
TW-0□032
TW-0□120TW-0□211TW-0□318TW-0□4* Pressure loss at the maximum ﬂow rate
TG-ES830-6E
RevisedFeb 2016 K
1st edition Jul 2003

TW-080/TW-090 MINI-TURBINE FLOWMETERDIMENSIONS AND ELECTRICAL CONNECTION〈 TW-080 〉〈 TW-090 〉
Terminal number
123
4
5

Function
Wire color
Power supply (+)
RedOutput (+)
WhitePower supply (−), Output (−)
BlackShield
Black (thick)

Function+Vcc Power supply (+)
GND Power supply (‒)
NC

UnusedVout

Output (+)

GND

Output (‒)

70702831

1 +Vcc TYPE
2 GND OUTPUT
3 NC RANGE
4 Vout S/R NO.
TOKYO KEISO CO.,LTD.
5 GND

Power:12V-24V

Connector (JAE)
IL-G-5P-S3L2-SA

FLOW

FLOW

88910

1247

6

653No.
1234526

Mounting hole for the ﬁxing screw
2-M4, Depth 5.5

Name
Wheel
Shaft
Ball bearing
Vortex guide
Downstream guide

Material
Nylon 12+Fe (plastic magnet)
Zirconia
Zirconia
PBTPBT22No.
678910

1TYPEOUTPUT
RANGE
S/R NO.

16222814（32.5）

2828

2476280.5

3TOKYO KEISO CO.,LTD.

51660.5

14（46.8）

12345

26

NameO-ring
Flow path body
CoverCircuit board
Cable

Mounting hole for the ﬁxing screw
2-M4, Depth 5.5

Material
NBR
SCS14
TW-08□: ABS, TW-09□: PVC—
PVC sheath

PRECAUTION❑ Do not put a signal cable along with other power lines.
❑ The inner diameter of the process piping and the joint for the TW-0 □ 3/0 □ 4 types (Rc3/8) must be φ 10.9 mm or larger.
❑ Installation is to be made at the place free from the influence of external magnetic field which affects the characteristics.
❑ Use this flowmeter where there is no stagnation of air around the wheel and also in the state of water filled up.
❑ Avoid the air blow from the upstream. Otherwise, the wheel and shaft might be damaged.
❑ Flush the piping before installation. Install a filter in the upstream if necessary to prevent foreign matter flowing into the flowmeter.

* 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-ES830-6E