Toshiba Home Safety Product LF232*F User manual

Electromagnetic Flowmeter for LF502/LF232*F
6” to 24”
Partially-filled Pipes
(150 to 600 mm )
Introduction
The LF502 electromagnetic flowmeter uses Faraday’s
Law of electromagnetic induction in the same way as
conventional electromagnetic flowmeters to measure
the flow rate. Position of electrodes in the LF502 is so
designed that it can be used even in a partially-filled
pipe to measure the flow rate.
Improved functional magnetic field distribution
technique enables a high-precision flow measurement
continually from low-level to fully-filled flow
conditions. This eliminates unnecessary piping work
such as lifting the downstream pipe section to fill the
detector pipe.
Compared with flowmeters measuring the flow rate by
means of flow level, the obstruction less LF502
flowmeter does not usually allow mud, sands and other
solid sediment stay at the bottom of the detector pipe
and is unaffected by wave or floating solids on the fluid
surface.
The AF900 hand-held terminal (HART*1
communicator) can be used to communicate with the
flowmeter from a remote place.
*1: HART protocol (Highway Addressable Remote
Transducer) is a communication protocol for industrial
sensors recommended by the HCF (HART
Communication Foundation).
LF502
Figure 2. LF502 Electromagnetic Flowmeter
for Partially-filled Pipes
Specifications
■ Overall Specifications
Measurement range:
Meter size
6” (150mm)
8” (200mm )
10” (250mm )
12” (300mm )
Converter
14” (350mm )
Detector
Power supply
Signal cable
16” (400mm )
20” (500mm )
24” (600mm )
Excitation cable
4-20 mAdc
Digital I/O
Figure 1. LF502/LF232*F Configuration
LF232*F
Measurement range
0 – 264 GPM(std) to 0 – 1320 GPM
(0 – 60 m3/h to 0 – 300 m3/h )
0 – 484 GPM(std) to 0 – 2420 GPM
(0 – 110 m3/h to 0 – 550 m3/h )
0 – 770 GPM(std) to 0 – 3850 GPM
(0 – 175 m3/h to 0 – 875 m3/h )
0 – 1100 GPM(std) to 0 – 5500 GPM
(0 – 250 m3/h to 0 – 1250 m3/h )
0 – 1540 GPM(std) to 0 – 7700 GPM
(0 – 350 m3/h to 0 – 1750 m3/h )
0 – 1980 GPM(std) to 0 – 9900 GPM
(0 – 450 m3/h to 0 – 2250 m3/h )
0 – 3124 GPM(std) to 0 – 15620 GPM
(0 – 710 m3/h to 0 – 3550 m3/h )
0 – 4400 GPM(std) to 0 – 22000 GPM
(0 – 1000 m3/h to 0 – 5000 m3/h )
Note: Above flow rate is almost 0 – 3.28 ft/s (std) to 0 –
16.4 ft/s (0 – 1 m/s to 0 – 5 m/s ) flow velocity.
Fluid-level range:
Meter size
6” to 12” m
(150 to 300m )
14” to 24”
(350 to 600mm )
Specification
1-1/4”(30mm ) to fully-filled condition.
10% of inside tube diameter to
fully-filled condition.
Note: The fully-filled condition means a 100% of inside
tube diameter.
Accuracy: ±2% FS (when measurement range is
standard)
Note: The accuracy is measured under standard
operating conditions at Toshiba's calibration
facility.
TIC-LF502A
TIC-LF502A
Required straight pipe length:
10D minimum on upstream side and
5D minimum on downstream side
Note: D is a nominal meter size.
Fluid conductivity: 100µS/cm minimum
Fluid temperature: 32 to 131 °F (0 to 55 °C )
Ambient temperature: 14 to 122 °F (-10 to 50 °C )
Dimensions and Weights: See figures 3 to 5.
Power supply:
100 to 120 Vac (80 to 132 Vac), 50/60Hz
Power consumption: 50VA (30W) or less
■ Model LF502 Detector
Meter sizes: 6” (150 mm ), 8” (200 mm ), 10” (250
mm ), 12” (300 mm ), 14” (350 mm ), 16” (400
mm ), 20” (500 mm ), 24”(600 mm )
Fluid pressure:
0 psi or 0 bar (0 MPa) to the pressure limited by
flange standard
(fully-filled condition)
Connection flange standards:
ANSI 150, JIS 10K
Structure:
IP67 and NEMA 4X Watertight (std. )
IP68 and NEMA 6P Submersible (opt.)
Coating: Phthalic acid resin coating, pearl-gray
colored (standard for watertight type) or black tar
epoxy (option for watertight type and specified
exclusively for submersible type)
Principal materials:
Case — carbon steel
Measuring pipe — 304 stainless steel
Linings — The following are the standards:
Meter size
6” to 16” (150 to 400mm )
20” & 24” (500 & 600mm )
Standard specification
EPDM rubber
Chloroprene rubber
Electrodes — 316L stainless steel (std.)
Grounding rings — The following are the
standards.
Meter size
6” to 16” (150 to 400mm )
20” & 24” (500 & 600mm )
Standard specification
316 stainless steel
304 stainless steel
See Table 1 for optional materials and other
related information.
Coating: phthalic acid resin coating (std.),
Pearl-gray colored
Cable connection port:
Cable glands: Provided as standard, R(PT) 1/2
male screw.
Applicable diameter: 0.433 to 0.512 inch (11
to 13mm )
2
■ Model LF232*F converter
Input signals
Analog signal — the voltage signal from detector,
proportional to process flow rate.
Digital input DI (opt.)
(added when 9th digit of specification code is ”3”)
Voltage level: High level 20 to 30 V dc
Low level 2 V dc or less
Input resistance: 2.7 kΩ
Number of inputs: 2 points (DI1 and DI2)
DI functions:
For digital input function, either of the following
functions can be selected.
• Range switching
One Digital Input is used: switching between large
and small ranges of forward/reverse, 2-range
measurement.
Two Digital Inputs are used: switching between
ranges of single direction, 4-range measurement.
• Totalizer control input
Totalizer Start/Stop control or Reset/Start
•Output hold input
Fixed with set value for current output and pulse
output (loop check)
• Zero adjustment
Starts zero adjustment (on-stream at zero flow rate)
when DI voltage level goes low after remaining
high for 10 to 20 seconds.
Output signals
Current output:
4–20mAdc (load resistance 0 to 1KΩ)
Digital output (DO) — One point (std.) and three
more point is optionally available as follows.
Digital output DO1 (std.):
Output type: Transistor open collector
Number of outputs: One point
Output capacity : 30Vdc, 200mA maximum
Digital output DO2～DO4 (opt.)
(Added when 9th digit of specification code is “3”)
Out put type: Solidstate relay output (non polarity)
Number of outputs: 3 points
Output capacity: 150Vdc, 150mA maximum or
150Vac (peak to peak),
100mA maximum
DO functions—Four digital output function, either of
the following functions can be selected.
• Totalizer pulse output
DO1 or DO2 can be selected (Forward direction
pulse and reverse direction pulse can be assigned
TIC-LF502A
independently)
In the case of DO1
Pulse rate: 3.6 to 3,600,000 pulses/h
Pulse width:Settable within the range of 0.3 to
500ms
In the case of DO2
Pulse rate: 3.6 to 360,000 pulses/h
Pulse width: Settable within the range of 4 to
500ms
• Rage switching output
One Digital Output (DO) is used
･Single direction, 2-range switching signal
･Forward/reverse direction switching signal
Two Digital Outputs (DO) are used
･Single direction, 4-range switching signals
･Forward/reverse 2-range switching signals
• High/low limit alarm output
An alarm is output when flow rate goes above or
below the set-point value
Setting range : -10 to 110% of the settable
maximum range
High limit 2 points, low limit 2 points can be set
At the time of alarm output, Normally Open or
Normally Closed contact can be selected
• Preset point output
Contact ON when totalizer count exceeds the set
value
Setting range: 1 to 99999999 count
• Converter error alarm
An alarm is output when an operation error is
detected by self-diagnosis.
At the time of alarm output, Normally Open or
Normally Closed contact can be selected
Communications signal:
A digital communications (HART protocol) signal is
superimposed on 4 to 20 mA dc analog output signal.
Load resistance: 240 Ω to 1 kΩ
Load capacitance: 0.25 µF or less
Load inductance: 4mH or less
(For maximum cable length, about 2km is a
guideline length when CVV-S 1.25mm2 is used
under standard installation condition.)
Note: HART (Highway Addressable Remote
Trans-ducer) is a communications protocol for
industrial sensors recommended by the HCF
(HART Commu-nication Foundation).
Output display:
16-character×2-line dot-matrix LCD
(With back light).
2 units can be selected from the flowing units: flow
velocity, instantaneous flow rate, total flow
(forward/reverse/difference flow), total count, %,
custom unit.
Parameter settings—Parameters can be set as follows
•IR Switches: Various parameters can be set without
opening the converter housing using 4 infrared
switches (password can be set)
•Zero adjustment: Zero point adjustment can be
started by pressing the switch in the converter.
•Digital communication: The AF 900 hand-held
terminal is needed to set parameters.
•Damping: 0.5 to 60 s
(Selectable in one second increments)
“Field re-verification” Mag-Prover – Toshiba’s
Zero span calibration tool allows unit to be
re-calibrated and verified using an internal
software program. (For more information contact
Toshiba International Corp.)
Conditions when power fails:
Parameter setting values are stored in non-volatile
memory and the values will be restored when the
power returns to normal condition The output and
display will stay as follows when power fails..
Current output: 0 mA
Digital output : OFF (contact open)
LCD display : No display
Surge protection: Surge protectors are installed in the
power supply, excitation circuit, current signal
output and digital I/O circuit.
Terminal block structure:21-pole, screw connection
type (M4 screw)
Housing: Aluminum alloy
Coating: Acrylic resin-baked coating, pearl-gray
colored
Cable connection ports :
A cable gland is provided for each port.
OD of cable φ11 to 13 mm
Material Nylon 66
G(PF) 1/2 male screws.
Structure: IP67 and NEMA 4X Watertight
Vibration resistance:
No resonance to the following levels of vibration:
• 10 to 55Hz with amplitude of 0.07mm,
• Vibration of 30Hz with 29.4 m/s2 in 4h in each
direction will not cause any defect to unit.
Note: Avoid using the flowmeter in an environment
with constant vibration.
Dimension and Weights:
See Figure 5
3
TIC-LF502A
Installation
■ Dimensions
■ Dimensions
Separate type LF502 (Meter size 6” and 8”)
Separate type LF502 (Meter size 10” to 24”)
Unit: inch (mm)
Unit: inch (mm)
3.46 (88)
4.96 (126)
3.46 (88)
1.42 (36)
1.57 (40)
1.42 (36)
1.57 (40)
4.96 (126)
5.63 (143)
5.63 (143)
11.81(300)
Roll-prevention base
Figure 3. Detector Dimensions for Meter Sizes
6” (150 mm) and 8” (200 mm )
See the following tables for dimensions of L1, L2
and L3 in Figure 3 above, and the number of bolts
required for each flange.
ANSI 150 flange dimensions:
ANSI 150 flange dimensions:
Meter
L1
Size (inch) (inch)
6
8
10.47
11.81
L2
(inch)
L3
(inch)
No. of
bolts
Weight
(lb)
9.67
10.69
15.14
17.42
8
8
Approx.84
Approx. 194
No. of
bolts
8
12
Weight
(kg)
Approx. 35
Approx. 80
JIS 10K flange dimensions:
Meter
L1
Size (mm) (mm)
150
266
200
300
L2
(mm)
246
271
L3
(mm)
386
436
Figure 4. Detector Dimensions for Meter Sizes
10” (250 mm) to 24” (600 mm)
See the following tables for dimensions of L1, L2
and L3 in Figure 4 above, and the number of bolts
required for each flange.
Meter
L1
Size (inch) (inch)
10
12
14
16
20
24
13.78
15.75
17.72
19.69
23.62
23.62
L3
(inch)
No. of
bolts
Weight
(lb)
12.05
12.95
13.74
15.12
16.42
18.46
20.05
22.45
24.24
26.87
30.17
34.46
12
12
12
16
20
20
263
318
359
476
527
701
JIS 10K flange dimensions:
Meter
L1
Size (mm) (mm)
250
300
350
400
500
600
4
L2
(inch)
350
400
450
500
600
600
L2
(mm)
L3
(mm)
No. of
Bolts
Weight
(kg)
306
329
351
386
403
455
506
551
596
666
740
852
12
16
16
16
20
24
Approx. 110
Approx. 120
Approx. 130
Approx. 180
Approx. 190
Approx. 250
TIC-LF502A
■ Dimensions
9.33 (237)
4-φ12 hole
8.74 (222)
Installation method
据付方法
6.10 (155)
据 付 け は 、パ ネ ル ( 壁 面 ) 取 付 け か
パ イプ取 付 けで行 います。
2.91 (74)
指 定 され た取 付 用 ボ ル ト・ナットが 付
属 します。
In the
caseイofプ2B
2 Bパ
取 pipe
付 けinstallation
の場合
15.75 400
(400)
14.57(370)
15.75 (400)
M
10 UUボ
ルト
M10
bolts
2B( 50m m ) パ イプ
Signal cable ground
Output cable ground
Power supply cable ground
パネル取付穴加工寸法
11
to 12 φhole
11～ 12φ 穴
(4ヵ所
)
4 places
Grounding terminal
2.99 (76)
2.99 (76)
Excitation cable ground
I/O cable ground
2.99 (76)
14.57370
(370)
1.57
2.17(55) (40)
2.9174
(74)
Weight : Approximately18 lb (8 kg)
(including a mounting bracket)
Figure 5. Separate type converter LF232＊F
5
TIC-LF502A
■ External Connections
Terminal box
Power supply
(CVV)
Ⅳ wire
5.5mm2 or more
Power supply
Grounded with 100Ω or
less ground resistance
Current output (4 to 20mA)
Digital input 2 (opt.)
Thick walled steel conduit
Digital input 1 (opt.)
(20 to 30 Vdc)
Digital output 4 (opt.)
Digital output 3 (opt.)
Digital output 2 (opt.)
Detector
Signal cable
(2-wire shielded hard-rubber sheathed cable)
Excitation cable
(3-wire hard-rubber sheathed cable)
Digital output
Output cable
(CVV-S)
Digital I/O cable
(CVV-S)
Figure 6. LF502/LF232*F flowmeter Wiring Diagram
■ Wiring Precautions
(1) Be sure to use thick walled steel conduit (22
mm) for signal and excitation cable wiring
between the detector and converter. The
conduit screw is R (PT)1/2. Use flexible
conduits at the cable outlets of the detector as
needed.
(2) Make the grounding wire as short as possible.
Do not use a common ground shared with
other equipment where earth current may flow.
An independent earth ground is recommended.
(3) The meter may affect its accuracy when the
electric potential of measurement fluid is
unstable condition.
• Make the piping of the upstream side and
downstream side the same material.
• When the material of next pipes are conductive
like metal, use a 5.5mm2 or larger core cable for
grounding of detector and wire it at 2 places as
follows.
• Between Grounding terminal at detector body
and Grounding ring at upstream side.
• Between Grounding terminal at detector body
and Grounding ring at downstream side.
• When the material of next pipes are
6
non-conductive like plastic, use a 5.5mm2 or
larger core cable for grounding of detector and
wire 1 place as follows.
• Between Grounding terminal at detector
body and Grounding (100 ohm or less).
(4) DO1 to DO4 and DI1 to DI2 use the same
common terminal (COM). This COM can not
connect to other instruments that have their
own ground terminal (Power supply for
connecting to DI or DO, etc...). Need to wire
separately.
TIC-LF502A
■ About establishment environment
■ Piping Precautions
(1) Flange connection
The flowmeter has upstream and downstream
flanges on the ends of detector pipe. Connect
these flanges with the flanges on both sides of
pipeline bore using connection bolts after
inserting a gasket between them. See Figure 7.
Tighten the bolts in even increments diagonally
across.
Observation
window
Upstream flange
Downstream flange
Bolt
Observation
window
Flow
directio
Gasket
Do not store or install the flowmeter:
• Where there is direct sunlight.
• Where excessive vibration or mechanical shock
occurs.
• Where high temperature or high humidity
conditions exist.
• Where corrosive atmospheres exist.
• Places that can be submerged under water.
• Where there is sloped floor. To put the flowmeter
temporarily on the floor, place it carefully with
something, such as stopper, to support it so that the
flowmeter will not topple over.
In areas like the following, there may be the case that
infrared switches do not function correctly. (If these
are unavoidable, use an appropriate cover.)
(1) Where unit (operation panel) is exposed to direct
sunlight, reflection of light onto window pane and
diffused light reflection.
(2) Where smoke and steam may occur.
(3) Where exposed to direct snow, ice or mud.
Figure 7. Flange Connection
(2) Required straight pipe length
The straight pipe length is required to prevent
uneven flow velocity and a disturbance on the
fluid surface in the detector pipe. The required
straight pipe length should be as follows:
• Downstream side:L = 5D minimum
• Upstream side:L = 10D minimum
where,
L = straight pipe length (straight pipeline length
+ half length of detector pipe length)
Flow regulation
Observation window
valve etc.
Detector
■ Ordering Information
1. When ordering the LF502 flowmeter, refer to
Table 1 (Type Specification Codes). An entry
must be made for each of the columns in each of
these tables.
2. Fluid characteristics:
(1) Type of fluid to be measured and its
characteristics
(2) Fluid temperature
(3) Fluid pressure
(4) Electrical conductivity of the fluid
3. Measuring range
4. Digital I/O specifications
5. Ordering scope:
Actual flow calibration data:(Required or not)
6. Other items
Specifications other than standard items
10D minimum 5D minimum
Note: The length of reducers, if used, can be counted as
a part of straight pipe length.
Figure 8. Required Straight Pipe Length on
Upstream and Downstream Sides
7
TIC-LF502A
Table 1. Specification Code for LF502 detector
Model
1
Specification Code
2
3
4
5
L F
5
0
2
6
7
8
A
LF502 Electromagnetic flowmeter
Meter size
6" (150mm )
8" (200mm )
10" (250mm )
12" (300mm )
14" (350mm )
16" (400mm )
20" (500mm )
24" (600mm )
Standard
Connection flange standard
ANSI 150
JIS 10K
Lining
Chloroprene rubber
EPDM rubber
Teflon PFA
Electrode and Grounding Ring Material
316L stainless steel + 316 stainless steel
Titanium + Titanium
Hastelloy C + Hastelloy C
316L stainless steel + 304 stainless steel
Flow and calibration velocity range
Standard range calibration
K
L
M
N
P
Q
R
S
A
C
J
C
D
T
B
C
F
H
A
B
C
D
E
Code explanation:
Size
Description
9 10 11 12
B
-
-
Coating
Phthalic acid resin
Black tar epoxy resin , thickness 0.3mm
Black tar epoxy resin , thickness 0.5mm
Black tar epoxy resin , thickness 0.5mm (for submersible type)
: Standard
: Option
–: Not available
Size groups
A : 6” (150mm ) to 16” (400mm )
B : 20” (500mm ) and 24” (600mm )
Table 2. Specification Code for LF232*F converter
Model
Specification Code
1 2 3 4 5 6 7 8 9 10 11 12
L F 2 3 2
Separate type converter
A
Purpose
Standard
Compatible detectors
F
For Partially-filled pipes (Meter size : 150mm(6”) to 600mm(24”) )
Mounting nuts and bolts
C
Panel, wall mounting (material : 304 stainless steel)
E
Pipe mounting
(material : 304 stainless steel)
Digital input/output
1
Current output
+ Digital output points (1 point)
3
Current output
+ Digital output points (4 points) + Digital input points (2 points)
Communication function
1
HART communication
Power supply
1
100Vac-120Vac, 50/60Hz
A Standard
Code explanation:
: Standard
: Option
ISO9001 and ISO14001 certified.
Misuse of this product can result in damages to property or human injury.
Read related manuals carefully before using this product.
TIC-LF502A
LF232
type
Contents
Specifications are subject to change without notice.
Printed in Japan 2008-5 (TDOC)
© TOSHIBA Corporation 2008
All Rights Reserved.
http://www.toshiba.com/ind/

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project