TM3000
MINI CONVERTOR UNITOUTLINE
The TM3000 mini converter unit is a dedicated converter tobe used in combination with TF-900, TF-1000, TF-5000, TF6000, and (H-)EP-TF-5300 series mass flowmeters. The DIN72mm compact housing is equipped with functions such as
instantaneous flow rate indication, re-output, totalized valueindication, scaled pulse output, high/low alarm outputs, as well
as RS-485 communication function, and converter drive power
supply as standard. It can be used widely for monitoring thetotal gas amount of each flow and detecting abnormal flow rate.

STANDARD SPECIFICATION• FLOW RATE INDICATION
Indication: 4-digit LCD (13 mm height)
Accuracy: ±0.1% F.S. and ±1 digit, in addition todetector accuracy
Analog input (by selection): a) 4 to 20 mA DC, 250Ω input impedanceb) 0 to 5 V DC, 200 kΩ input impedance
Analog re-output (by selection): a) 4 to 20 mA DC, up to 500Ω loadb) 0 to 5 V DC, 100 kΩ load and over
Output accuracy : ±0.1% F.S., in addition to detector accuracy• TOTALIZATION FUNCTION
Indication: 7-digit LCD (6 mm height)
Scaled pulse: Output
Open collector
Rating30 V DC, 20 mA (maximum)
Pulse width
50 mS (fixed)
Pulse rate
Synchronous with the value
counterIndication accuracy: ±0.1% F.S., in addition to detector accuracy
Scaling factor: 36,000 c/h (maximum)
Totalized value reset: Remote (via terminal/communication) or panel
key touch• LOW CUT
: 2% as standard (arbitrary setting)
Scope of application: Flow rate indication, flow rate output, totalized
value indication, scaled pulse output• ALARM FUNCTION
Alarm indication : LED turns red during operation.
Alarm output: SPST NO (Make contact) or NC (Breakcontact) (The contact will be opened evenwhen power is not supplied.)
Setting accuracy : ±1.0% F.S.
Contact rating: 125 V AC, 0.4 A/30 V DC, 2 A
Setting point: 2 points
Operation mode : Upper and lower alarm limits can be set.
Hysteresis width : 1±0.5% F.S. (fixed)• RS-485 COMMUNICATION SPECIFICATION
Protocol: Modbus RTU
Transmission speed: Selectable from 2400, 4800, 9600, or 19200
bps
Data format: Selectable from 8N1, 8E1, or 8O1
ID address: Selectable from 0 to 255
Function: Outputs for instantaneous flow rate, totalized
values etc., setting change• OTHER FUNCTIONS
Multi-data: Up to 6 channels can be set.
Loop check function• DATA BACKUP
Operation parameters and totalized values can be stored in flash
memory for 10 years.
• EXTERNAL POWER SUPPLY: Select either from ±12 V DC, +200 mA,-200 mA, or ±15 V DC, +200 mA, -200 mA.
• OTHER SPECIFICATIONSPower supply: 85 to 250 V AC, 50/60 Hz
Power consumption: 15 VAElectrical connection: Blade terminalAmbient temperature: 0 to 50°C (no condensation)
Withstand voltage: 1500 V AC between power supply and earthterminal, 1 min.
Insulation resistance: 20 MΩ or over between power supply andearth terminal (500 V DC)
Construction: Indoor use (IP20 equivalent)
Housing material : ABS resin with glass fiber
Weight: Approx. 480 g

MODEL CODE
MODEL CODE
3
1Analog input
2DescriptionTM

4 to 20 mA DC
0 to 5 V DC
1
4 to 20 mA DC
Analog output
20 to 5 V DC
1 ±12 V DC (Standard)
External power supply
2 ±15 V DCAPPLICABLE FLOWMETERS AND EXCLUSIVE CABLE
Applicable flowmeters
TF-900/1000/1100/1300
TF-1200/1400
TF-5300/6300(H-) EP-TF-5300
TF-1161
HM-1000/5000 (Option)

Cable code
SC-MM3
SC-MA3SC-FM3SC-EP3SC-MR3
SC-HM2

Cable length

2m: Standard
100m (Max.)

TG-F2152-E01
2nd edition Dec 2022 K
1st edition Aug 2021 K

TM3000 MINI CONVERTOR UNITDIMENSIONS
More than 90

783147272More than 100

67 +0.7067 +0.70Note) Recommending mount panel in 1 to 5mm thickness.

FRONT PANELTERMINALIndication
Upper : Flow rate
Lower : Totalization

Highalarm(Default)

Unit

Low
alarm(Default)

Up
Down
Shift
Mode

PULSE
OUT

1(+)
(C)
(E)
(+)
(–)
(+V)
(COM)
(–V)
(+)
(–)

ANALOGIN

DC POWER
TO METER

23 456789 10(C)

(E)

(-)

+V

COM

-V

(+)

F.G.

POWER

(+)

(-)

(+)

Description
RS-485
Pulse Output
Analog Output

DC power to meter

Analog Input

No.
11121314151617181920

RS-485WIRINGNo.
12345678910

ANALOG
OUT

Description(–) RS-485

(-)

RESET

HIGH
ALARM

LOW
ALARM

11 12 13 14 15 16 17 18 19 20Reset

AC85–250V

High alarm output
Low alarm output

APPLICATIONSF.G.
AC power supply

Analog Output
Scaled Pulse Output
High and Low AlarmOutput
RS-485
Communication

Cable

AC PowerDetector* 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 : https://www.tokyokeiso.co.jp
2TG-F2152-E01