SM2604 Magnetic-inductive flow meter SMN21XGX50KG/US-100

Brand: IFM Electronic

Code: SM2604

Precise measurement of flow, consumption and medium temperature
High accuracy, repeatability and measurement dynamics
For use in water cooling circuits
With two precise analogue outputs
Clearly visible 4-digit LED display

Product characteristics

Number of inputs and outputs

Number of analogue outputs: 2

Measuring range

5...600 l/min

0.3...36 m³/h

80...9510 gph

1.3...158.5 gpm

Process connection

threaded connection 2" NPT DN50

Application

Special feature

Gold-plated contacts

Application

empty pipe detection; for industrial applications

Media

conductive liquids; water; hydrous media

Note on media

conductivity: ≥ 20 µS/cm

viscosity: < 70 mm²/s (40 °C)

Medium temperature

-10...80 °C

14...194 °F

Pressure rating [bar]

Pressure rating [Mpa]

1.6

Pressure rating [psi]

232

MAWP (for applications according to CRN) [bar]

Electrical data

Operating voltage [V]	18...32 DC; (to SELV/PELV)
Current consumption [mA]	< 150
Protection class	III
Reverse polarity protection	yes
Power-on delay time [s]	5

Inputs / outputs

Number of inputs and outputs	Number of analogue outputs: 2

Outputs

Total number of outputs	2
Output signal	analogue signal
Number of analogue outputs	2
Analogue current output [mA]	4...20; (≤ 22 mA)
Max. load [Ω]	500

Measuring/setting range

Measuring range

5...600 l/min

0.3...36 m³/h

80...9510 gph

1.3...158.5 gpm

Display range

-720...720 l/min

-43.2...43.2 m³/h

-11410...11410 gph

-190.2...190.2 gpm

Resolution

0.5 l/min

0.02 m³/h

5 gph

0.1 gpm

Analogue start point ASP

0...480 l/min

0...28.8 m³/h

0...7610 gph

0...126.8 gpm

Analogue end point AEP

120...600 l/min

7.2...36 m³/h

1900...9510 gph

31.7...158.5 gpm

Low flow cut-off LFC

< 15 l/min

< 0.9 m³/h

< 240 gph

< 4 gpm

In steps of

0.5 l/min

0.02 m³/h

5 gph

0.1 gpm

Measuring dynamics

1:120

Temperature monitoring

Measuring range

-20...80 °C

-4...176 °F

Display range

-40...100 °C

-40...212 °F

Resolution

0.2 °C

0.5 °F

Analogue start point

-20...60 °C

-4...140 °F

Analogue end point

0...80 °C

32...176 °F

In steps of

0.2 °C

0.5 °F

Accuracy / deviations

Flow monitoring

Accuracy (in the measuring range)	± (0,8 % MW + 0,5 % MEW)
Repeatability	± 0,2% MEW

Temperature monitoring

Temperature drift	± 0,0333 °C / K; ± 0,0599 °F / K
Accuracy [K]	± 1 (25 °C; Q > 15 l/min) / ± 1 (77 °F; Q > 4 gpm)

Response times

Flow monitoring

Response time [s]	0.35; (dAP = 0)
Damping process value dAP [s]	0...5

Temperature monitoring

Dynamic response T05 / T09 [s]	T09 = 3 (Q > 15 l/min) / T09 = 3 (Q > 4 gpm)

Software / programming

Parameter setting options	display can be deactivated; Display unit; empty pipe detection

Operating conditions

Ambient temperature

-10...60 °C

14...140 °F

Storage temperature

-25...80 °C

-13...176 °F

Protection

IP 65; IP 67

Tests / approvals

EMC

DIN EN 60947-5-9

CPA approval

model number	004MI
accuracy class	-
maximum allowable error	± 1,5 % FS
Q (min)	0,3 m³/h
Q (t)	-
Q (max)	36 m³/h
Medium temperature	-10...70 °C
Medium temperature	14...158 °F

Shock resistance

DIN EN 60068-2-27

20 g (11 ms)

Vibration resistance

DIN EN 60068-2-6

5 g (10...2000 Hz)

MTTF [years]

Pressure Equipment Directive

Sound engineering practice; can be used for group 2 fluids; group 1 fluids on request

Mechanical data

Weight [g]	2728
Materials	stainless steel (1.4404 / 316L); stainless steel (1.4571/316Ti ); PEI; FKM; PBT-GF20; TPE-U
Materials (wetted parts)	stainless steel (1.4404 / 316L); stainless steel (1.4571/316Ti ); PEEK; FKM
Process connection	threaded connection 2" NPT DN50

Displays / operating elements

Display

Display unit	6 x LED, green (l/min, m³/h, gpm, gph, °C, °F)
function display	1 x LED, yellow (10³)
measured values	alphanumeric display, 4-digit
programming	alphanumeric display, 4-digit

Display unit

l/min; m³/h; gpm; gph; °C; °F

Accessories

Items supplied

Label

Remarks

MW = measured value

MEW = Final value of the measuring range

Pack quantity

1 pcs.

Electrical connection

Connection	Connector: 1 x M12; coding: A; Contacts: gold-plated

Diagrams and graphs

Pressure loss

dP	Pressure loss
Q	volumetric flow quantity

ifm electronic gmbh • Friedrichstraße 1 • 45128 Essen — We reserve the right to make technical alterations without prior notice. — EN-GB — SM2604-00 — 02.08.2023 —