Seametrics PE202 User manual

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MADE
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ISO
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PE202
Low Flow Magmeter
Instructions

PE202 INSTRUCTIONS
Seametrics • 253.872.0284 Page 2 seametrics.com
TABLE OF CONTENTS
General Information
General Information ...................................................................................................................................................Page 3
Features ..........................................................................................................................................................................Page 3
Specications ................................................................................................................................................................Page 4
Dimensions ....................................................................................................................................................................Page 5
Pressure Drop Curve...................................................................................................................................................Page 5
Installation
Positioning......................................................................................................................................................................Page 6
Mounting........................................................................................................................................................................Page 6
Piping ...............................................................................................................................................................................Page 6
Power Supply.................................................................................................................................................................Page 6
Grounding ......................................................................................................................................................................Page 6
Connections
General Connection Information...........................................................................................................................Page 7
Pulse Output Only with FT520................................................................................................................................Page 7
4-20 mA Device and FT430/440 with Single Power Supply........................................................................Page 7
Dual Power Supply with Loop Isolation..............................................................................................................Page 7
Operation
General Operation Information..............................................................................................................................Back
Troubleshooting
Problem ...........................................................................................................................................................................Back
Probably Causes...........................................................................................................................................................Back
Things to Try..................................................................................................................................................................Back

PE202 INSTRUCTIONS
Seametrics • 253.872.0284 Page 3 seametrics.com
The PE202 magmeter is designed for low-ow chemical
injection or difcult-to-meter applications with pulsating
metering pumps in 3/4” to 1/4” pipe/tube. The housing is
made of sturdy splashproof HDPE plastic.
With no moving parts, the PE202 can handle uids
containing particulate matter without clogging or jamming,
keeping maintenance at a minimum. With no metallic parts
(100% PVDF body and PVDF carbon ber-lled electrodes),
the meter is corrosion-resistant and compatible with a
wide range of chemicals (consult factory for chemicals and
concentrations). Accuracy is maintained with conductive
uids (>20 microSiemens) of varying viscosities and
densities.
FEATURES
GENERAL INFORMATION
The PE meter is compact enough to t most pump/injection
systems. With zero straight pipe required after an elbow,
it can be easily mounted in tight spaces. The mounting
bracket adds stability.
The PE meter has an optoisolated current sinking pulse
output that can be connected to the Seametrics FT430/440
rate/total display or FT520 batch processor, as well as an
optoisolated 4-20 mA current loop for analog devices.
Outputs and power are provided through a cable with
8-pin female circular connector.
Mounting bracket
Sturdy HDPE housing
8-pin circular bulkhead connector, 20 foot (6 meter) cable provided
½” male NPT
ttings standard
Internals made of chemical and corrosion-resistant PVDF
Threaded male or female NPT adapters
can be purchased separately
(available in PVDF and PP)
(Female NPT available in 1/2” only)

Pipe Size 3/4”, 1/2”, 3/8”, 1/4” **
Fittings 1/2” NPT ttings standard in 3/4” or 3/8” owbody. NPT threaded adapters available for above
pipe sizes.
Materials Body PVDF
Electrodes PVDF carbon ber lled
Ground PVDF carbon ber lled
Housing HDPE with 25% glass
Adapters (NPT) Polypropylene or PVDF
Temperature Ambient 0˚ to 130˚ F (-18˚ to 54˚ C)
Fluid 32˚ to 200˚ F (0˚ to 93˚ C)
Pressure 150 psi
Flow Range -075 20 GPM max. (0.2 GPM cutoff)
-038 3 GPM max. (0.03 GPM cutoff)
Accuracy -075 ±1% plus ±0.005 GPM of reading across rated range
-038 ±1% plus ±0.002 GPM of reading across rated range
Output Signal Optoisolated current sinking or current sourcing pulse output: 30 Vdc, 5 mA max
Optoisolated 4-20 mA current loop: 7 Vdc plus load voltage drop min; 50 Vdc max
-075 500 pulses/liter (1892 pulses/gallon)
-038 1000 pulses/liter (3785 pulses/gallon)
Power 10–15 Vdc, 150 mA (linear power supply recommended)
Conductivity >20 microSiemens
Empty Pipe Detection Hardware/software, conductivity-based
Environmental NEMA 4X standard; IP66 splashproof standard
* Specications subject to change • Please consult our website for current data (seametrics.com).
** Requires adaptors
NOTE: Consult factory for applications owing sodium hypochlorite, sodium chlorite, sodium chlorate.
For applications with the listed chemicals, the following conditions apply:
• Max concentration 15% / Max temperature 100˚ F
• Flow is greater than 20% of max for accurate reading
PE202 INSTRUCTIONS
Seametrics • 253.872.0284 Page 4 seametrics.com
GENERAL INFORMATION
Specications*

PE202 INSTRUCTIONS
Seametrics • 253.872.0284 Page 5 seametrics.com
GENERAL INFORMATION
-038
-075
3
Dimensions
Pressure Drop Curve
PE202-075 with 3/4” adapters.
PE202-038 with 3/8” adapters.
Actual curve dependant on pipe size/ttings
4.2" (METER WITHOUT ADAPTERS)
7.2" (WITH ADAPTERS AS SHOWN)
3.5"
2.0"
4.2"
2.1"
-038 .19
-075
.50
D
C
B
A
A
B
C
D
1
2
3
4
5
6
7
8
8
7
6
5
4
3
2
1
19026 72nd Avenue South
Kent, Wa 98032 USA
[phone]
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
SEAMETRICS, INC. ANY REPRODUCTION
IN PART OR AS A WHOLE WITHOUT THE
WRITTEN PERMISSION OF SEAMETRICS, INC
IS PROHIBITED.
PROPRIETARY AND CONFIDENTIAL
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES
TOLERANCES:
ANGULAR:
.5
.X .03
.XX
.01
.XXX
.005
.XXXX
.001
BREAK SHARP EDGES
DRAWN
MECH. ENG.
ELEC. ENG.
MFG. ENG.
Q.A.
DATE NAME
TITLE:
SIZE
B
DWG. NO.
REV
SHEET 1 OF 1
CP PE202-038
DO NOT SCALE DRAWING
A
COMMON PARTS, PE202-038
Mounting
Bracket
7.2” (18.3 cm) (with adapters as shown)
4.2” (10.7 cm) (meter without adapters)
3.5”
(8.9 cm)
2.0”
(5.0 cm)
4.2” (10.7 cm)
2.1” (5.3 cm)
Meter ID
-038 0.19”
-075 0.50”
4.2" (METER WITHOUT ADAPTERS)
7.2" (WITH ADAPTERS AS SHOWN)
3.5"
2.0"
4.2"
2.1"
METER ID
-038 .19
-075
.50
D
C
B
A
A
B
C
D
1
2
3
4
5
6
7
8
8
7
6
5
4
3
2
1
19026 72nd Avenue South
Kent, Wa 98032 USA
[phone]
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
SEAMETRICS, INC. ANY REPRODUCTION
IN PART OR AS A WHOLE WITHOUT THE
WRITTEN PERMISSION OF SEAMETRICS, INC
IS PROHIBITED.
PROPRIETARY AND CONFIDENTIAL
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES
TOLERANCES:
ANGULAR:
.5
.X .03
.XX
.01
.XXX
.005
.XXXX
.001
BREAK SHARP EDGES
DRAWN
MECH. ENG.
ELEC. ENG.
MFG. ENG.
Q.A.
DATE NAME
TITLE:
SIZE
B
DWG. NO.
REV
SHEET 1 OF 1
CP PE202-038
DO NOT SCALE DRAWING
A
COMMON PARTS, PE202-038
7.2” (18.3 cm) (with adapters as shown)
4.2” (10.7 cm) (meter without adapters)
3.5”
(8.9 cm)
2.0”
(5.0 cm)

PE202 INSTRUCTIONS
Seametrics • 253.872.0284 Page 6 seametrics.com
Positioning
The PE202 can be mounted vertically or horizontally. It is
important to choose a position that will ensure full pipe.
(Under certain conditions of empty or partially-full pipe
the meter may give a pulse out when there is no ow.)
With a zero straight pipe requirement after an elbow, the
PE meter can be installed in tight spaces.
Mounting
It is highly recommended to use the mounting bracket
provided. The mounting bracket uses two #8 screws on a
1.5” center.
The PE202 may be supported by its piping connections IF
the piping is rigid. The meter and pipe must be perfectly
aligned with no exion at the ttings to prevent leakage or
damage to the meter.
FLOW
FLOW
FLOW
INSTALLATION
Piping
Metal pipe, metal tube, or plastic tubing can be used with
the meter. The standard NPT ttings can be used with or
without NPT adapters on 3/4” or 3/8” pipe. If used, apply
Teon tape onto the NPT ttings. NPT adapters should be
hand tightened onto the ttings. Thoroughly clean the
pipe threads and nose and apply Teon tape to adapter
threads. Hold adapters with a wrench while tightening the
pipe to prevent damage to the meter.
Power Supply
A 12 Vdc linear, regulated power supply with an output
current of at least 0.25A is recommended. If a switching
power supply must be used, consult Seametrics for
approved manufacturer’s model numbers.
Grounding
In addition, it is necessary for proper operation to ground
the unit to a good quality earth ground. Assure negative
power supply is grounded to earth and to the entire
electrical/mechanical system. If metal piping is used,
jumper inlet and outlet pipes together and connect to
ground for best results in metering accuracy. The cable
shield drain wire should be left unconnected.

PE202 INSTRUCTIONS
Seametrics • 253.872.0284 Page 7 seametrics.com
Power and signal connections are provided through the
8-pin male bulkhead connector on the meter housing
(20 ft (6 m) cable provided). See the Pin Assignment and
Connections diagrams.
Cable Plug Contact
Arrangement
21
3 7
46
5
8
CONNECTIONS
Pin # Function Color
1Pulse (-) White
2 Ground Brown
3Pulse (+) Green
44-20 (+) Yellow
5 Not used Grey
6 Not used Pink
74-20 (-) Blue
8Power (+) Red
Pulse Output Only with FT520
+_
SEN 1
SEN 2
+
_
12
G
12 Vdc
power
Green
Brown
White
Red
Pin 8
Pin 2
Pin 3
Pin 1
PE202
FT520
4-20 mA Device and FT430/440 with Single Power Supply
Important: 4-20mA device input resistance must not exceed 250 Ω
Dual Power Supply with Loop Isolation
+
_
S
+
_
+
_
+
_
4-20 mA
loop
12–15
Vdc
4-20 mA
device
PE202
Sensor Input
FT430/440
Power
48
3
1
2
7
Yellow
Red
Green
White
Blue
Brown
May be external
or internal to the
FT430/440
+
_
S
+
_
+
_
+
_
+
_
4-20 mA
loop
24
Vdc
4-20 mA
device
PE202
Sensor Input
FT430/440
Power
48
3
1
2
7
Yellow
Red
Green
White
Blue
Brown
12–15
Vdc
May be external
or internal to the
FT430/440
May be external
or internal to the
FT430/440

Seametrics • 19026 72nd Avenue South • Kent, Washington 98032 • USA
(P) 253.872.0284 • (F) 253.872.0285 • 1.800.975.8153 • seametrics.com LT-14229r2.0 20160912
9/12/16
PE202 INSTRUCTIONSOPERATION AND TROUBLESHOOTING
TROUBLESHOOTING
The meter will output one pulse when powered up. The
newly-installed meter takes from a few seconds to a minute
for the signal to stabilize at startup, especially if it has been
dry. In normal operation, keep the meter lled with uid
and powered on to prevent this delay. When the meter
is mounted properly, an empty pipe detection feature will
normally detect absence of liquid in the pipe and register
zero ow.
OPERATION
The 4-20 mA signal outputs 4 mA at zero ow and 20 mA at
20 gallons/minute ow or 3 gallons per minute, depending
on model.
The pulse signal is a 50% duty cycle pulse set at:
PE202-075: 500 pulses/liter (1892 pulses/gallon)
PE202-038: 1,000 pulses/liter (3785 pulses/gallon)
Problem Probable Causes Things to try…
No output Reversed ow direction Reverse ow connections
Empty pipe Check piping conditions
Flow rate below minimum Select a different ow meter
Loose or incorrect wiring Check electrical connections
Fluid conductivity too low Select a different ow meter
Electrical noise Relocate meter or reduce noise
Flow rate incorrect Fluid conductivity too low Select a different ow meter
Empty pipe Check piping conditions
Electrical noise Relocate meter or reduce noise