SILVER AUTOMATION INSTRUMENTS LTD.
Product Category

Thermal mass flow meter

Thermal mass flow meter

Digital Display , 24V or 220V AC power supply;
Output 4-20mA ;
Modbus RTU communication;
Sensitive to low air or gas flow;
EX-Works Price without shipping cost

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Flow meter size


Refund & Repair Policy

Flow meters are customized products, customized products are not returned unless the product is defective.

For product defects, we bear all return and send back freight cost.
If the product is damaged due to misused by the customer and needs to be repaired, the customer shall bear the return freight.

Overview

Thermal mass flowmeters (TMFMs) measure or monitor the mass flow of air, Compressed air, gas or a gas mixture in countless applications. SRK-100 Series thermal mass flow meter is a kind of low cost digital mass flow meter; it has digital display to show instant flow, also total flow. Meanwhile it also has 4-20Ma output or pulse output, relay outputs, Hart Protocol or Modbus RTU. SRK-100 series mass flowmeter can be tailored into high temperature type flow meter, anti-corrosive probe type or different process connections.





Product pictures

Insertion thermal mass flow meter

inline thermal mass flow meter

Micro thermal mass flow meter

insertion air flow meter thermal flow meter

inline air flow meter thermal flow meter

What is mass flow?

Mass flow is a gravimetric measurement of mass moving over time, expressed as pounds per hour, kilograms per day, grams per second or similar units. A thermal mass flowmeter is expressed as standard Nm3/h or cubic feet per minute (SCFM). Since these units of flow rate are standardized at specific temperatures and pressure, they resolve into mass flow units.

Technical Specifications for industrial mass flow meter

Accuracy

±1% reading; ±0.5% full range

Repeatability

±0.5% of full range

Turn down ratio

Normal 100:1; it is decided by calibrated flow range

Upper Limit of Range

80 Nm/s (air,20,101.33kPa)

Lower Limit of Range

0.05Nm/s (air,20,101.33kPa)

Size

Ø6~ Ø6000

Pressure Range

Negative Pressure, 0~1.0MPa,0~1.6MPa,0~2.0MPa,0~3.0MPa

Medium Temperature

-20~60,60~100,100~150,150~200,200~300

Medium

All kinds pure gas,air, compressed air or mixed gas with fixed percentage, gas with dust, sand or moisture, corrosive gas

Sensor Diameter

Ø3(standard), Ø4

Sensor Material

316SST,hastelloy,titanium

Probe Stem Diameter

Ø19(standard), Ø16, Ø12

Probe Stem Material

316SST,hastelloy,

Power supply

24VDC/400mA or 220VAC/2W

Output

4-20mA DC, max load 1000Ω;RS485,Hart

Display

LED; four digits instantaneous flow , eight digits totalized flow

Correction

16 non-linearity correction

Type

Remote type: transmitter + flow totalizer

Integral type: transmitter with integral totalzier

Installation Type

Insertion type and In-line type

Alarm

1-2 relay output,3A/220VAC,3A/30VAC,settable

Protection level

IP65

Explosive proof

Ia IICT65,ExdII CT4

Lifetime

5 years

Model Selection

Item

Code

Description

Product Code

SRK-100

SRK-100 Series Thermal Mass Flow meter

Pipe size

DN

Ø6~ Ø6000

Construction

F

Remote Type

I

Compact Type

Sensor Structure *1

PI

Insertion Type

W

Weld base

B

Base + ball valve

PL

In-line Type

F

Flange

T

Thread

C

Compression fitting

Probe Diameter

19

Ø19(standard)

16

Ø16

12

Ø12

Probe Material

6

316

F

PTFE coated

Y

Others

Explosive Proof

A0

NO

A1

With Explosive Proof

Temperature

T0

-20~60

T1

60-100

T2

100-150

T3

150-200

T4

200-300

Pressure

P0

Negative Pressure

P1

0-1.0Mpa

P2

0-1.6Mpa

P3

0-2.0Mpa

P4

0-3.0Mpa

Power Supply

D

24VDC

A

220VAC

0

Other

Output

0

No output

1

4-20mA

2

RS485,Modbus

3

Hart Protocol

Alarm

A0

No alarm

A1

1 alarm relay output

A2

1 alarm relay outputs

Display

N

No display

E

LED

Note:

*1, For example: Code PIW---Insertion type flow meter with weld base.



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