■ Speciﬁcations
Common speciﬁcations for Ultrasonic Flowmeter for air
25A

Nominal diameter

32A

ATZTA TRX/TRZ ver. 540A

50A
65A
80A
100A
Air (mainly factory air), or Nitrogen (Note 1) *Please select at the time of placing an order
Flow amount that actual flow is compensated at 0℃, 1 atm.
Flow amount that actual flow is compensated at the designated temperature (set at the flowmeter), 1 atm.

Measurable fluids
NORMAL compensation
Compensation
Standard compensation
Fluid temperature

200A

For Compressed Air and Nitrogen

Qmax

260.0

480.0

600.0

-10 ~ 60 °C0 ~ Less than 1MPa (Gauge pressure)
2200.01800.01100.03700.09000.014800.0

1/10Qmax

26.0

48.0

60.0

110.0

180.0

220.0

370.0

900.0

1480.0

Qmin

4.3

8.0

10.0

18.3

30.0

36.7

74.0

180.0

296.0

Qcut

0.7

1.5

1.5

2.9

4.4

5.9

19.2

36.9

Working pressure
Normalflow-rate(Nm3/h)

150A

※1

Qcut

Qmin

Accuracy ※2±0.05%F.S.(25A~80A)±0.06%F.S.(100A~200A)±3.2%R.D.

Ultrasonic Flowmeter

66.3

1/10Qmax

Qmax

TRX/TRZ±1.3%R.D.

Rc1

Rc1-1/4
Wafer (put into place between JIS10K flanges)
JIS10K flange
LCD (including display of Unit, Gas type, and Alarm indication)
Alarm indication: Flow measurement alarm, pressure value alarm, temperature value alarm, communication circuit alarm, external memory alarm, low battery voltage alarm (for built-in battery type),
flowmeter replacement timing (for built-in battery type)

Connection
Installation position

Aluminum Alloy, PPS, Fluorosilicone rubber, etc.

Materials in contact with fluid

Stainless steel alloy, PPS, Fluorosilicone rubber, etc.

Installation

Indoors/outdoors (protection class: IP64)

Storage temperature-20~70°C, No dew condensation※1.This is normal ﬂow-rate indicated under the condition of 20℃ as the temperature and 700kPa as the pressure.
※2.At our shipping test facility.

For appropriate management ofCompressor Air！

Speciﬁcations for External Power Supply Type (D) / Built-in Battery Type(B)ModelExternal power supply specification ATZTA TRX25D-C(N)/5P ATZTA TRX32D-C(N)/5P ATZTA TRX40D-C(N)/5P ATZTA TRX50D-C(N)/5P ATZTA TRX65D-C(N)/5P ATZTA TRX80D-C(N)/5P

ATZTA TRZ100D-C/5P

ATZTA TRZ150D-C/5P

ATZTA TRZ200D-C/5P

Built-in battery specification ATZTA TRX25B-C(N)/5P ATZTA TRX32B-C(N)/5P ATZTA TRX40B-C(N)/5P ATZTA TRX50B-C(N)/5P ATZTA TRX65B-C(N)/5P ATZTA TRX80B-C(N)/5P

ATZTA TRZ100B-C/5P

ATZTA TRZ150B-C/5P

ATZTA TRZ200B-C/5P

100mm

150mm

200mm

25mm

Nominal diameter
Electric External power supply specification
Power
Supply Built-in battery specification

32mm

40mm

50mm

65mm

80mm

24VDC±10%, Power consumption 1.1W MAX(Electric current consumption 40mA MAX)
Built-in lithium battery with a battery life of 10 years (At environmental temperature 20°C)
4-20mA(±0.5%FS), Load resistance 400 ohm or less, Upper limit output current 22mA Output of Instantaneous flow-rate, pressure, meter alarms,or temperature is selectable by the buttonNote) An electric power supply device (24VDC±10%) shall be prepared separately, in case of use of electric current output with the built-in battery specification type.

Electriccurrent
outputOutput range (4-20mA) : Instantaneous flow-rate 0 ~ □□□□Nm³/h(Forward flow indication mode), -□□□□ ~ □□□□Nm³/h(Forward/reverse flow indication mode)

OutputIntroducing a new flow meter with higher cost performance!!

□□□□ is setting value set by the button

Pressure 0 ~ 1000kPa, Temperature -10 ~ 60°C
2 open drain outputs, MAX load: 24VDC 10mA, MAX frequency: 10Hz, Duty ratio: 35 ~ 65%、or One-shot (Select ON-Time from 50,100,125,250,500ms) ※Note 2)(Possible to change the setting at site)
Contactoutput

Output 1: Unit pulse (Forward flow) Output 2: Selection from Unit pulse (Reverse flow), Flow upper and lower limit alarm, or telegram statement signal
Pulse output unit 1Nm³/P, 10Nm³/P

Pulse output unit 0.1Nm³/P, 1Nm³/P
Mass

External power supply specifications

1.5kg

1.4kg

1.0kg

1.2kg

1.4kg

1.7kg

9.8kg

18.1kg23.9kgBuilt-in battery specifications

1.7kg

1.6kg

1.1kg

1.3kg

1.6kg

1.8kg

10.0kg18.3kg24.1kgATZTA TRZ100R-C/5P

ATZTA TRZ150R-C/5P

ATZTA TRZ200R-C/5P

100mm

150mm

200mm

Conformed standard

CE marking conformity (EN61000-6-2:2005, EN61000-6-4:2007)

RS485 Output Type Speciﬁcations
ATZTA TRX25R-C(N)/5P ATZTA TRX32R-C(N)/5P ATZTA TRX40R-C(N)/5P ATZTA TRX50R-C(N)/5P ATZTA TRX65R-C(N)/5P ATZTA TRX80R-C(N)/5P

Model
Nominal diameter

25mm

32mm

40mm

Current outputOutput

65mm

80mm

24VDC±10％、24VDC±10％、Power consumption not more than 1.5W

Power supply

Same as the speciﬁcations for External Power Supply Type (D) and Built-in Battery Type(B)Unit pulse
Nch Open-drain output 1 line : Maximum load: 24VDC 50mA

Contact pulse
outputOutput type: Duty ratio (35 to 65% maximum frequency) or One-shot (Select ON-Time from 50,100,125,250,500ms)
Pulse output unit

100L（normal）／P、1000L（normal）／P3※Note 1

3

Pulse output unit 1m （normal）/P,10m (normal)/P ※Note 1

1 line: Conform to Modbus/RTU

Communication※Note 3

Communication bit rate: Selection from 9600,19200,38400,57600,115200bps by button operation
1.5kg

Weight

50mm

1.4kg

1.0kg

1.2kg

1.4kg

1.7kg

9.8kg

18.1kg23.9kgNote 1) Nominal diameters 25 ~ 80mm correspond measurement of Nitrogen.
Note 2) At the actual flow measurement setting, number of digits for accumulated flow volumes, number of digits for instantaneous flow-rate, and pulse output unit differ from the above table.
*Piping conditions : 25mm & 32mm: Furnishing of straight pipe of 20D or more at the upstream side and 5D or more at the downstream side (In case of utilization of forward/reverse flow indication mode, 20D or more for the both upstream and downstream)
40mm and above : Furnishing of straight pipe of 10D or more at the upstream side and 5D or more at the downstream side (In case of utilization of forward/reverse flow indication mode, 10D or more for the both upstream and downstream)
Note 3)Communication specifications can be downloaded from our company website.
Note 4)In case of connection with a logger device, command sending interval shall be set to 200msec or longer.

■ Actual Flow Volume – Normal Flow Volume Conversion Table
Conversion condition

25mm

32mm

40mm

Temperature (°C) Gauge pressure (MPa) Minimum Maximum Minimum Maximum Minimum

50mm

65mm

80mm

100mm

150mm

200mmMaximum Minimum Maximum Minimum Maximum Minimum Maximum Minimum Maximum Minimum Maximum Minimum Maximum

0.7 (Nm3/h)

4.4

260

8.1

480

9.659018110030

1770

3722107436801808840290147000.5 (Nm3/h)

3.2

190

5.9

350

7430

13800

211280271600

53

2670

130

6420

210

10700

0.7 (Nm3/h)
Actual flow (m3/h)

4.3

250

7.8

460

9.3

570

181070291710

362140

71

3560

170

8550

290

14250

0.6

35

1.1

65

1.3

80

2.5

150

4240

5300

10500

24

1200

4020002030■ External dimensions 25mm・32mm

40mm・50mm・65mm・80mm

Model

W

H

D

ATZTA TRX25･32147

162

80

Unit: mm

100mm・150mm・200mm

Unit: mm

Model

W

H

øD

Model

WH

øD

ATZTA TRX4076

163

81

ATZTA TRZ100

250

280

210

ATZTA TRX50ATZTA TRX65
ATZTA TRX8090176

96341

280

197
22011７126

ATZTA TRZ150
ATZTA TRZ200300

108117350

391330Standard equipping of Conversion-to-NORMAL（Temperature & Pressure Compensation）function

Global brand“ATZTA (Atsuta)” is the head letter of “A to Z to Aichitokei”, and such thought that “Aichi Tokei Denki
solves all the issues of ﬂuid measurements” is put in it. Also, whereas “Atsuta” has been the location of
the headquarter since the establishment, “ATZTA (Atsuta)” is the starting point of our manufacturing.

Energy-saving Tool

Technical specifications in this catalog are up-to-date as of Feb 2020.

Manufactured and Distributed by

Aichi tokei denki co.,ltd.
URL：https://www.aichitokei.net/
1-2-70 Chitose, Atsuta-ku, Nagoya, 456-8691, JapanFor inquires, please contact us.
Overseas Business Division TEL +81-(0)52-661-5150

To Our Customers

Please understand that product specifications may be changed without noticein order to improve performance. We are always happy to provide the latest
catalogs and brochures, and respond to inquiries made to our offices.

1.8202002-TRXTRZ-000