MJP/MJN-Series Specification - Seametrics
MJP/MJN-SERIES PULSE METER
APPLICATIONS Potable water Cooling tower chemical control
ISO 9 0 0 1 : 2 0 0 8
Industrial water treatment
CERTIFIED COMPANY
Deduct metering Pump Pacing MJP-Series
Features • Certified to NSF/ANSI 61 • Dry top multi-jet design • Tolerates low quality water • Simple pulse output
MJN-Series
MJP-Series and MJN-Series meters use the multi-jet principle, which has been an internationally-accepted standard for many years. This type of meter is known for its wide range, simplicity, and accuracy in lowquality water. The Seametrics MJP-Series and MJN-Series are certified to NSF/ANSI 61. The impeller is centered in a ring of jets, with inlet jets on one level and outlet jets on another. A gear train drives the register totalizer dials. For pulse output, one of the pointers is replaced by a magnet, which is detected by an encapsulated sensor attached to the outside of the lens. Pulse rate is determined by the dial on which the magnet is placed, and by the number of sensors (single or double). Changing the pulse rate requires no special tools and can be done in the field. The MJP-Series has a plastic body and is available in 3/4”, 1”, and 1 1/2” versions. The MJN-Series has a brass body and is available in 3/4”, 1”, 1 1/2” and 2” versions. MJPE & MJNE meters use a solid-state, long-lasting Hall-effect sensor, which requires power. It is suited for use with Seametrics controls and metering pumps that have sensor power. MJPR & MJNR meters use a two-wire reed switch. They provide a dry contact closure and do not require power.
Contact your Supplier
MJPT& MJNT meters totalize only and do not have a sensor.
rt
if ie
d Comp
a
Ce
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ISO 9001:2008
253.872.0284 seametrics.com
MJP/MJN-SERIES PULSE METER
Features
The MJPE/MJNE or MJPR/ MJNR sensor fastens to lens without removing top Calibration plug seal wire for tamper evidence
MJN-Series (brass body)
Union end couplings for easy service
Plastic body (MJP) or Brass body (MJN) MJP-Series (plastic body)
Specifications* Power
6 mA at 12 Vdc (MJPE & MJNE only)
Temperature
105˚ F (40˚ C) max
Pressure
150 psi operating (10.3 Bar)
Materials
Body
Plastic (MJP) or Eco-brass alloy (MJN)
Internals
Engineered thermoplastic
Magnet
Alnico
Fittings
Lead-free tail piece
Accuracy
±1.5% of reading
Pulse Output
MJPE/MJNE
MJPR/MJNR
MJPT/MJNT
Hall-effect device
Reed switch
Totalizer only
Max Current
20 mA
20 mA
n/a
Max Voltage
24 Vdc
24 Vdc or Vac
n/a
Sensor
Cable Length
12’ (4 m) standard (2000’ maximum run)
Flow Rates (GPM)**
3/4”
1”
1 1/2”
2” (MJN only)
Minimum
0.25
0.75
1.5
2.0
Maximum
20
50
100
160
Regulatory
NSF/ANSI 61, complies with Federal Public Law 111-380
Standards
ISO4064 Class B, AWWA C708
*Specifications subject to change • Please consult our website for current data (www.seametrics.com). ** Caution: Excessive flow can cause breakage. Do not exceed recommended maximums.
253.872.0284
Page 2
seametrics.com
MJP/MJN-SERIES PULSE METER
Dimensions
Pulse Rates
C
D
3/4”
1”
1 1/2”
Pulses per Gallon
20* 10 4† 2* 1
4† 2* 1
4† 2* 1
4† 2* 1
Gallons per Pulse
1 5* 10 50* 100
1 5* 10 50* 100
1 5* 10 50* 100
1 5* 10 50* 100
Cubic Feet per Pulse
1 5* 10
1 5* 10
1 5* 10
1 5* 10
Pulses per Cubic Meter
1 10 100
1 10 100
1 10 100
1 10 100
Liters per Pulse
1 10 100
1 10 100
1 10 100
1 10 100
A B MJP A (body)
3/4”
1”
1 1/2”
7 1/2”
10 1/4”
11 3/4”
11 5/8”
15”
17”
C (IPS thread)
1”
1 1/4”
2”
D (NPT thread)
3/4”
1”
1 1/2”
MJN
3/4”
1”
1 1/2”
2”
B (w/couplings)
7 1/2”
10 1/4”
11 3/4”
11 3/4”
11 5/8”
15”
17”
17 5/8”
C (IPS thread)
1”
1 1/4”
2”
2 1/2”
D (NPT thread)
3/4”
1”
1 1/2”
2”
A (body) B (w/couplings)
2”
(MJN only)
*MJPR/MJNR dual reed switch meters only †MJPR/MJNR single reed switch meters only
Shipping Weight MJP 3/4”
Pressure Drop Curve
MJN
lb
kg
lb
kg
3
1.4
6
2.7
1”
4.5
2
8
3.6
1 1/2”
7.5
3.4
13
5.9
2”
n/a
n/a
16
7.3
Pressure drop in P.S.I.
20 15 10 5 0
3/4"
2.5
5
7.5
10
12.5
15
17.5
20
22.5
25
1"
5
10
15
20
25
30
35
40
45
50
1-1/2"
10
20
30
40
50
60
70
80
90
100
2"
13
26
39
52
65
78
91
104
117
130
(MJN only)
253.872.0284
Rate of flow in gallons per minute (GPM)
Page 3
seametrics.com
MJP/MJN-SERIES PULSE METER
How to Order Model
Size
PLASTIC
-075 = 3/4”
MJPR = Reed Switch
-100 = 1”
MJPE = Hall-effect sensor
-150 = 1 1/2”
MJPT = Totalizer only
-200 = 2” (MJN only)
BRASS MJNR = Reed Switch MJNE = Hall-effect sensor MJNT = Totalizer only
Pulse Rate
Options MJPR/ MJNR
MJPR/ MJNR
(Single Reed)
(Dual Reed)
20P
= 20 Pulse/Gal
10P
= 10 Pulse/Gal
√*
4P
= 4 Pulse/Gal
√
2P
= 2 Pulse/Gal
1G
= 1 Gal/Pulse
5G
= 5 Gal/Pulse
10G
= 10 Gal/Pulse
50G
= 50 Gal/Pulse
MJPE/ MJNE
MJPT/ MJNT
-06 = LMI pump connector -07 = Seametrics control connector
√* √*
√ √
√ √
√
√ √
100G = 100 Gal/Pulse
√
√
1CF
= 1 CF/Pulse
√
√
5CF
= 5 CF/Pulse
10CF
= 10 CF/Pulse
√
√
1CM
= 1 Pulse/CM
√
√
10CM = 10 Pulse/CM
√
√
100CM = 100 Pulse/CM
√
√
1L
= 1 Liter/Pulse
√
√
10L
= 10 Liter/Pulse
√
√
100L
= 100 Liter/Pulse
√
√
G
= Gallons
√
CF
= Cubic Feet
√
CM
= Cubic Meters
√
L
= Liters
√
√
*3/4” only
Accessories PD10 = Pulse divider PS40 = Pulse splitter PT35 = Pulse timer
103239-075 103239-100 103239-150 103239-200 103924-075 103924-100 103924-150
= = = = = = =
3/4” Brass coupling assembly w/gasket (incl 2 sets) 1” Brass coupling assembly w/gasket (incl 2 sets) 1.5” Brass coupling assembly w/gasket (incl 2 sets) 2” Brass coupling assembly w/gasket (incl 2 sets) 3/4” Plastic coupling assembly w/gasket (incl 2 sets) 1” Plastic coupling assembly w/gasket (incl 2 sets) 1.5” Plastic coupling assembly w/gasket (incl 2 sets)
Seametrics • 19026 72nd Avenue South • Kent, Washington 98032 • USA (P) 253.872.0284 • (F) 253.872.0285 • 1.800.975.8153 • seametrics.com
LT-14382r2.0 20161012 10/12/16
APPLICATIONS Potable water Cooling tower chemical control
ISO 9 0 0 1 : 2 0 0 8
Industrial water treatment
CERTIFIED COMPANY
Deduct metering Pump Pacing MJP-Series
Features • Certified to NSF/ANSI 61 • Dry top multi-jet design • Tolerates low quality water • Simple pulse output
MJN-Series
MJP-Series and MJN-Series meters use the multi-jet principle, which has been an internationally-accepted standard for many years. This type of meter is known for its wide range, simplicity, and accuracy in lowquality water. The Seametrics MJP-Series and MJN-Series are certified to NSF/ANSI 61. The impeller is centered in a ring of jets, with inlet jets on one level and outlet jets on another. A gear train drives the register totalizer dials. For pulse output, one of the pointers is replaced by a magnet, which is detected by an encapsulated sensor attached to the outside of the lens. Pulse rate is determined by the dial on which the magnet is placed, and by the number of sensors (single or double). Changing the pulse rate requires no special tools and can be done in the field. The MJP-Series has a plastic body and is available in 3/4”, 1”, and 1 1/2” versions. The MJN-Series has a brass body and is available in 3/4”, 1”, 1 1/2” and 2” versions. MJPE & MJNE meters use a solid-state, long-lasting Hall-effect sensor, which requires power. It is suited for use with Seametrics controls and metering pumps that have sensor power. MJPR & MJNR meters use a two-wire reed switch. They provide a dry contact closure and do not require power.
Contact your Supplier
MJPT& MJNT meters totalize only and do not have a sensor.
rt
if ie
d Comp
a
Ce
ny
ISO 9001:2008
253.872.0284 seametrics.com
MJP/MJN-SERIES PULSE METER
Features
The MJPE/MJNE or MJPR/ MJNR sensor fastens to lens without removing top Calibration plug seal wire for tamper evidence
MJN-Series (brass body)
Union end couplings for easy service
Plastic body (MJP) or Brass body (MJN) MJP-Series (plastic body)
Specifications* Power
6 mA at 12 Vdc (MJPE & MJNE only)
Temperature
105˚ F (40˚ C) max
Pressure
150 psi operating (10.3 Bar)
Materials
Body
Plastic (MJP) or Eco-brass alloy (MJN)
Internals
Engineered thermoplastic
Magnet
Alnico
Fittings
Lead-free tail piece
Accuracy
±1.5% of reading
Pulse Output
MJPE/MJNE
MJPR/MJNR
MJPT/MJNT
Hall-effect device
Reed switch
Totalizer only
Max Current
20 mA
20 mA
n/a
Max Voltage
24 Vdc
24 Vdc or Vac
n/a
Sensor
Cable Length
12’ (4 m) standard (2000’ maximum run)
Flow Rates (GPM)**
3/4”
1”
1 1/2”
2” (MJN only)
Minimum
0.25
0.75
1.5
2.0
Maximum
20
50
100
160
Regulatory
NSF/ANSI 61, complies with Federal Public Law 111-380
Standards
ISO4064 Class B, AWWA C708
*Specifications subject to change • Please consult our website for current data (www.seametrics.com). ** Caution: Excessive flow can cause breakage. Do not exceed recommended maximums.
253.872.0284
Page 2
seametrics.com
MJP/MJN-SERIES PULSE METER
Dimensions
Pulse Rates
C
D
3/4”
1”
1 1/2”
Pulses per Gallon
20* 10 4† 2* 1
4† 2* 1
4† 2* 1
4† 2* 1
Gallons per Pulse
1 5* 10 50* 100
1 5* 10 50* 100
1 5* 10 50* 100
1 5* 10 50* 100
Cubic Feet per Pulse
1 5* 10
1 5* 10
1 5* 10
1 5* 10
Pulses per Cubic Meter
1 10 100
1 10 100
1 10 100
1 10 100
Liters per Pulse
1 10 100
1 10 100
1 10 100
1 10 100
A B MJP A (body)
3/4”
1”
1 1/2”
7 1/2”
10 1/4”
11 3/4”
11 5/8”
15”
17”
C (IPS thread)
1”
1 1/4”
2”
D (NPT thread)
3/4”
1”
1 1/2”
MJN
3/4”
1”
1 1/2”
2”
B (w/couplings)
7 1/2”
10 1/4”
11 3/4”
11 3/4”
11 5/8”
15”
17”
17 5/8”
C (IPS thread)
1”
1 1/4”
2”
2 1/2”
D (NPT thread)
3/4”
1”
1 1/2”
2”
A (body) B (w/couplings)
2”
(MJN only)
*MJPR/MJNR dual reed switch meters only †MJPR/MJNR single reed switch meters only
Shipping Weight MJP 3/4”
Pressure Drop Curve
MJN
lb
kg
lb
kg
3
1.4
6
2.7
1”
4.5
2
8
3.6
1 1/2”
7.5
3.4
13
5.9
2”
n/a
n/a
16
7.3
Pressure drop in P.S.I.
20 15 10 5 0
3/4"
2.5
5
7.5
10
12.5
15
17.5
20
22.5
25
1"
5
10
15
20
25
30
35
40
45
50
1-1/2"
10
20
30
40
50
60
70
80
90
100
2"
13
26
39
52
65
78
91
104
117
130
(MJN only)
253.872.0284
Rate of flow in gallons per minute (GPM)
Page 3
seametrics.com
MJP/MJN-SERIES PULSE METER
How to Order Model
Size
PLASTIC
-075 = 3/4”
MJPR = Reed Switch
-100 = 1”
MJPE = Hall-effect sensor
-150 = 1 1/2”
MJPT = Totalizer only
-200 = 2” (MJN only)
BRASS MJNR = Reed Switch MJNE = Hall-effect sensor MJNT = Totalizer only
Pulse Rate
Options MJPR/ MJNR
MJPR/ MJNR
(Single Reed)
(Dual Reed)
20P
= 20 Pulse/Gal
10P
= 10 Pulse/Gal
√*
4P
= 4 Pulse/Gal
√
2P
= 2 Pulse/Gal
1G
= 1 Gal/Pulse
5G
= 5 Gal/Pulse
10G
= 10 Gal/Pulse
50G
= 50 Gal/Pulse
MJPE/ MJNE
MJPT/ MJNT
-06 = LMI pump connector -07 = Seametrics control connector
√* √*
√ √
√ √
√
√ √
100G = 100 Gal/Pulse
√
√
1CF
= 1 CF/Pulse
√
√
5CF
= 5 CF/Pulse
10CF
= 10 CF/Pulse
√
√
1CM
= 1 Pulse/CM
√
√
10CM = 10 Pulse/CM
√
√
100CM = 100 Pulse/CM
√
√
1L
= 1 Liter/Pulse
√
√
10L
= 10 Liter/Pulse
√
√
100L
= 100 Liter/Pulse
√
√
G
= Gallons
√
CF
= Cubic Feet
√
CM
= Cubic Meters
√
L
= Liters
√
√
*3/4” only
Accessories PD10 = Pulse divider PS40 = Pulse splitter PT35 = Pulse timer
103239-075 103239-100 103239-150 103239-200 103924-075 103924-100 103924-150
= = = = = = =
3/4” Brass coupling assembly w/gasket (incl 2 sets) 1” Brass coupling assembly w/gasket (incl 2 sets) 1.5” Brass coupling assembly w/gasket (incl 2 sets) 2” Brass coupling assembly w/gasket (incl 2 sets) 3/4” Plastic coupling assembly w/gasket (incl 2 sets) 1” Plastic coupling assembly w/gasket (incl 2 sets) 1.5” Plastic coupling assembly w/gasket (incl 2 sets)
Seametrics • 19026 72nd Avenue South • Kent, Washington 98032 • USA (P) 253.872.0284 • (F) 253.872.0285 • 1.800.975.8153 • seametrics.com
LT-14382r2.0 20161012 10/12/16
