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CFS10-551 Electromagnetic Flowmeter

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Overview

CFS10 insertion style magnetic flowmeter is used to measure the flow of conductive liquids, colloids, and suspensions in pipelines. It can output one 4-20mA analog quantity and two switching quantities. The flowmeter is installed in a plug-in type, which is convenient for installation and replacement, and has no moving parts.

•Digitization, local digital display of measurement results;

•Easy to maintain, disassembly and assembly can be completed without tools;

•No moving parts

•Bi-directional flow;

•No pressure drop;

•Empty pipe detection

•Suitable for water media;

Dimensional drawing


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Connection & pin assignment

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• External loop power (24 VDC) is required.

• Factory standard calibration is 4 to 20 mA = 0 to 5 m/s.

• The 4 to 20 mA output can be spanned to any range,

from -10 m/s to +10 m/s.

• AUX PWR must be connected to power the display 

backlighting and to power to the relay coils if included.


General information


Range of application

Flow Rate Range (Bi-directional)

Pipe Size Range

Linearity

Repeatability

Water

0.05... 10 m/s

DN25 to DN900 (½ in. to 36 in.)

±1% of reading +0.01 ms (0.033 ft/s)

±0.5% of reading @ 25 (77 °F)


Power Requirements


4 to 20 mA

 

Frequency

Digital

Auxiliary

 

Reverse polarity and short circuit protected

21.6 to 26.4 VDC, 22.1 mA max.

400 mV p-p maximum ripple voltage

5 to 26.4 VDC, 15 mA max.

5 to 6.5 VDC, 15 mA max.

9 to 24 VDC, 0.4A max

(only required for units with relays)



Current output (4 to 20 mA)


Max Loop Resistance

Loop Accuracy

Temp. drift

Power supply rejection

Isolation

Maximum cable

Error condition

300 Ω

32 μA max. error (25 @ 24 VDC)

± 1 μA per max.

± 1 μA per V

Low voltage < 48 VAC/DC from electrodes and aux power

300 m (1000 ft)

22.1 mA


Relay Specifications


Relay 1 and 2 Type

Rating

 

Relay 3 Type

Rating

Hysteresis

Trigger Delay

Relay Modes

Relay Source

Error Condition

Mechanical SPDT

5 A @ 30 VDC max.,

5 A @ 250 VAC max.

Solid State

50 mA @ 30 VDC, 50 mA @ 42 VAC

Adjustable, plus timer delay

Adjustable (0 to 9999.9 sec.)

Off, Low, High, Window, and Proportional Pulse

Flow Rate, Resettable Totalizer

Selectable; Fail Open or Fail Closed


Display


Characters

Contrast

Backlighting

2 x 16

User-set in four levels

Requires external 9-24 VDC,

0.4 mA max. (only on relay versions)


Environmental Requirements


Enclosure

Case

Display window

Storage Temperature

Relative Humidity

Operating Temperature:

Ambient

Media

Operating pressure:

Maximum

NEMA 4X / IP65 (with cap installed)

PBT

Polyamide

-20℃ to 70 ℃ (-4 °F to 158 °F)

0 to 95% (non-condensing)

 

-10 ℃ to 70℃ (14 °F to 158 °F)

0 ℃ to 85 ℃ (32 °F to 185 °F)

 

10.3 bar @ 25℃ (150 psi @ 77 °F)

1.4 bar @ 85 ℃ (20 psi @ 185 °F)