DKM/A-1 1 0007 12-15 E M
Operation
– Float measuring principle
Application
– Mechanical engineering
– Central lubrication
– Circulation lubrication
– Transformers
Features
– Universal orientation
– High reliability
– High switch accuracy
– Viscosity compensated
– Infinitely variable switch point adjustment by operator
– EX-version according to ATEX directive available
– UL Recognized version available
– High pressure resistance
– Threaded connection, special thread on request
Installation information
– The operating instructions for
DKM/A-1 Module BASICS / ...ATEX must be observed!
– Download: www.meister-flow.com
OVERVIEW
Flow Monitor & Flow Indicator
DKM/A-1
DKM/A-1 2 0013 03-21 E M
MATERIALS
Brass version, wetted parts
Spring: 1.4571
Gaskets: FKM (optional NBR, EPDM)
(2)
Magnets: Hard ferrite
Device body: Brass, nickel-plated
all other wetted parts: Brass
Brass version, non-wetted parts
Display: Makrolon
®
/ 1.4301
(2)
Other gasket materials on request
Stainless steel version, wetted parts
Spring: 1.4571
Gaskets: FKM (optional NBR, EPDM)
(2)
Magnets: Hard ferrite
Device body: 1.4571
all other wetted parts: 1.4571
Stainless steel version, non-wetted parts
Display: Makrolon
®
/ 1.4301
MEASURINGRANGES
Type Switch range for Oil, density 0,9 kg/dm³
(1)
l/min gph gpm
DKM/A-1/2 0,5 – 1,5 8 – 24
DKM/A-1/4 1 – 4 16 – 63
DKM/A-1/8 2 – 8 32 – 127
DKM/A-1/10 3 – 10 48 – 160
DKM/A-1/15 5 – 15 80 – 240
DKM/A-1/24 8 – 24 125 – 380
DKM/A-1/30 10 – 30 160 – 480
DKM/A-1/45 15 – 45 240 – 710
DKM/A-1/60 20 – 60 320 – 950
DKM/A-1/90 30 – 90 8 – 24
DKM/A-1/110 35 – 110 9,5 – 29
Operating pressure, max.
250 bar (Brass version)
300 bar (Stainless steel version)
Pressure drop 0,02 – 0,4 bar
Viscosity range 30 cSt to 600 cSt
Temperature, max. 120 °C (optional 160 °C)
Measuring accuracy ±10 % of full scale
OPERATINGDATA
Changed operating data apply to the device in explosion-proof
design according to ATEX directive. Refer to the Operating Inst-
ructions for DKM/A-1 Module ATEX.
For UL Recognized devices, changed operating data apply. Refer
to the Operating Instructions for DKM/A-1 Module BASICS
Download: www.meister-flow.com
(1)
The specified measuring- /switch ranges are valid for oils having
a density of 0.9 kg/dm
3
and a kinematic viscosity of 30 to 600
cSt, vertical installation of the device and flow direction from
bottom to top.
Other installation positions or deviation from the operating densi-
ties and operating viscosities will increase the measurement error
specified in the data sheet. Excessive operating viscosities will
influence or may prevent function of the device.
Upon request, special scales for deviating media, different ope-
rating conditions and installation positions (only for devices which
can be installed in any position) are available.
The specified switch values are switch-off points, i.e. switch valu-
es by decreasing flow.
Other measuring- /switch ranges are available upon request.
DKM/A-1 3 0001 12-15 E M
TECHNICALDRAWING
SUMMARYOFTYPES
Type Overall dimensions [mm]
Weight
approx.
G DN SW L1 L2 T D1 D2 A1 A2 A3 A4 [g]
DKM/A-1/2
DKM/A-1/4
1/4" 8 34 130 152 10 40 40 57 – 70,5 ~98 1550
1/2" 15 34 130 152 14 40 40 57 – 70,5 ~98 1475
3/4" 20 34 130 152 15 40 40 57 – 70,5 ~98 1390
1" 25 40 130 130 17 40 40 57 – 70,5 ~98 1210
DKM/A-1/8
1/2"
3/4"
1"
15
20
25
34
34
40
130
130
130
152
152
130
14
15
17
40
40
40
40
40
40
57
57
57
–
–
–
70,5
70,5
70,5
~98
~98
~98
1475
1390
1210
DKM/A-1/10
DKM/A-1/15
DKM/A-1/24
DKM/A-1/30
3/4"
1"
20
25
34
40
130
130
152
130
15
17
40
40
40
40
57
57
–
–
70,5
70,5
~98
~98
1390
1210
DKM/A-1/45
DKM/A-1/60
DKM/A-1/90
1" 25 40 130 130 17 40 40 57 – 70,5 ~98 1210
DKM/A-1/110
DKM/A-1 4 0003 05-19 E M
ELECTRICALDATA
Ingress Protection
IP65: Connector in compliance with EN 175301-803, Form A
IP67: Cable or connector M12x1
Output signal
The contact opens / changes when the flow decreases
below the set point.
Power supply
Not required (potential-free reed contacts)
Connector types
Other connector types or cable lengths on request
CONNECTIONDIAGRAM
Meister Strömungstechnik GmbH • Im Gewerbegebiet 2 • 63831 Wiesen / Germany
Tel. +49 (0) 6096 9720-0 • Fax +49 (0) 6096 9720-30 • sales@meister-flow.com • www.meister-flow.com
The general business terms of Meister Strömungstechnik GmbH are valid • All rights reserved
Change over (COC) 250V · 1,5A · 50VA
(3)
Normally open (NOC) 250V · 3A · 100VA
Change over M12x1 (-20 °C – 85 °C) 250V · 1,5A · 50VA
(3)
Normally open M12x1 (-20 °C – 85 °C) 250V · 3A · 100VA
Change over PLC 250V · 1A · 60VA
EX-version in compliance with ATEX directive
ATEX II 2 G Ex mb IIC T6 Gb & ATEX II 2 D Ex tb IIIC T80 °C Db
ATEX II 2 G Ex mb IIC T5 Gb & ATEX II 2 D Ex tb IIIC T100 °C Db
Change over 250V · 1A · 30VA
(3)
Normally open 250V · 2A · 60VA
UL Recognized switch contacts
Change over 240V · 1,5A · 50VA
(3)
Normally open 250V · 3A · 100VA
(3)
Minimum load 3VA
ELECTRICAL
CONNECTION
– Connector in compliance with EN 175301-803, Form A
(DIN 43650, Form A)
– Connector M12x1
– Cable (1 m)
EX-version in compliance with ATEX directive
– Cable (2 m)
UL Recognized switch contacts
– Connector in compliance with EN 175301-803, Form A
– Cable (1 m)
