TM3000

MINI CONVERTOR UNIT

OUTLINE

The

TM3000 mini converter unit is a dedicated converter to

be used in combination with TF-900, TF-1000, TF-5000, TF-

6000, and (H-)EP-TF-5300 series mass flowmeters. The DIN-

72mm compact housing is equipped with functions such as

instantaneous flow rate indication, re-output, totalized value

indication, 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 the

total 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 to

detector accuracy

Analog input (by selection)

: a) 4 to 20 mA DC, 250

Ω input impedance

b) 0 to 5 V DC, 200 k

Ω input impedance

Analog re-output (by selection)

: a) 4 to 20 mA DC, up to 500

Ω load

b) 0 to 5 V DC, 100 k

Ω 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

Rating

30 V DC, 20 mA (maximum)

Pulse width

50 mS (fixed)

Pulse rate

Synchronous with the value

counter

Indication 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 (Break

contact) (The contact will be opened even

when 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 SPECIFICATIONS

Power supply

: 85 to 250 V AC, 50/60 Hz

Power consumption

: 15 VA

Electrical connection

: Blade terminal

Ambient temperature

: 0 to 50°C (no condensation)

Withstand voltage

: 1500 V AC between power supply and earth

terminal, 1 min.

Insulation resistance

: 20 M

Ω or over between power supply and

earth terminal (500 V DC)

Construction

: Indoor use (IP20 equivalent)

Housing material : ABS resin with glass fiber

Weight

: Approx. 480 g

MODEL CODE

MODEL CODE

Description

TM

3

Analog input

1

4 to 20 mA DC

2

0 to 5 V DC

Analog output

1

4 to 20 mA DC

2

0 to 5 V DC

External power supply

1

±12 V DC (Standard)

2

±15 V DC

APPLICABLE FLOWMETERS AND EXCLUSIVE CABLE

Applicable flowmeters

Cable code

Cable length

TF-900/1000/1100/1300

SC-MM3

2m: Standard

100m (Max.)

TF-1200/1400

SC-MA3

TF-5300/6300

SC-FM3

(H-) EP-TF-5300

SC-EP3

TF-1161

SC-MR3

HM-1000/5000 (Option)

SC-HM2

TG-F2152-E01

2nd edition Dec 2022 K

1st edition Aug 2021 K