SILVER AUTOMATION INSTRUMENTS LTD.

SRK-100 Thermal Mass Flow Meter

General Introduction 
The advanced technique of Silver Automation Instruments has been introduced to produce this
flow meter measuring gas mass flow. Traditional flow meters need to adopt temperature and
pressure compensation for measurement of fluid mass flow, whereas this flow meter can directly
measure fluid mass flow without requiring temperature and pressure compensation. Its
conspicuous features are as follows: direct trade settlement, no movable components, small
pressure loss, wide range ratio, high accuracy, high reliability, simple installation and convenient
operation. It is extensively used in the industries such as petroleum, chemical industry, medical
industry, heat power plant and environmental protection etc.


Typical Applications
Flow measurement of gas in industrial pipelines
Flow measurement of air during gas combustion
Flow measurement of flue gas out of chimneys
Flow measurement of waterfall gas during water treatment
Flow measurement of gas and compressed air during production of cement, cigarette, and glass
Flow measurement of natural gas, coal gas, liquefied gas, flare gas and hydrogen gas etc.
Flow measurement of trapped gas in steelworks

Technical Specifications

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 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

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 totalizer

Connection type

In-line type and plug-in type

Alarm

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

Protection level

IP65

Explosive proof

Ia IICT65,ExdII CT4

Lifetime

5 years


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