Fuji Electric FWD Series User manual

1
TABLE OF CONTENTS
Preface............................................................................................................................................... 2
Product Overview ............................................................................................................................. 2
Safety Instructions ........................................................................................................................... 3
1.Introduction ............................................................................................................................... 6
1-1.Scope of supply .............................................................................................................. 6
1-2.Name of each part........................................................................................................... 6
2.Installation ................................................................................................................................. 7
3.Setting Up ................................................................................................................................ 12
3-1.Measurement and indication setting........................................................................... 13
3-2.Output setting (for external power supply type) ........................................................ 14
4.Display ..................................................................................................................................... 16
4-1.Button operations ......................................................................................................... 16
4-2.Operation modes .......................................................................................................... 18
4-3.Setting items ................................................................................................................. 21
5.Wiring (External Power Supply Type).................................................................................... 27
6.Operation ................................................................................................................................. 29
7.Alarm........................................................................................................................................ 30
7-1.Aberration in flow measurement ................................................................................. 30
7-2.Aberrant pressure value............................................................................................... 31
7-3.Aberrant temperature value ......................................................................................... 31
7-4.Memory aberration........................................................................................................ 32
8.Power Interruption (External Power Supply Type) ............................................................... 33
9.Battery Life (Built-In Battery Type) ........................................................................................ 34
10.Troubleshooting...................................................................................................................... 35
11.Outline Diagram ...................................................................................................................... 37
Warranty and Maintenance ............................................................................................................ 38

2
Preface
Thank you very much for purchasing the Ultrasonic Flow Meter for Air FWD this time. Please be sure
to read this Instruction Manual to use this product correctly and safely and to prevent failures.
Please arrange for operators who actually use this product to know the context of this Instruction
Manual surely. This Instruction Manual is necessary for performing maintenance, too. Please keep
the Manual until this product is disposed of.
Product Overview
This flow meter is the ultrasonic flow meter for air capable of measuring the flow of air at pressure
from the atmospheric pressure to less than 1 MPa. The flow meter is installed to pipes by screwing its
taper pipe threads to the pipes or by being tightened between pipe flanges.
Screw connection type (Taper pipe threads): FWD025, FWD032
Wafer connection type (Installation between pipe flanges and by tightening with bolts):
FWD040, FWD050, FWD065, FWD080
Flange connection type (JIS 10K flange): FWD100, FWD150, FWD200

3
Safety Instructions
To ensure the safe use of this flow meter and to prevent a failure or an unexpected situation,
instructions to which attention must be paid are indicated with the following symbols.
Definitions
Danger
Incorrect handling by failure to follow instructions with this sign may lead to
imminent danger of death or serious injury.
Warning
Incorrect handling by failure to follow instructions with this sign may lead to death
or serious injury.
Note
Incorrect handling by failure to follow instructions with this sign may lead to injury,
properties loss (product damage, etc.), pecuniary loss, and/or punishment
according to a penal regulation for violation of laws and ordinances.
This symbol indicates that improper operation may results in an accident.
This symbol indicates prohibited acts.
This symbol indicates matters you should observe without fail.
General
Danger
Do not use for applications that require safety, such as nuclear, railroad, aircraft,
vehicle, playground equipment, etc.
Do not modify the product.
Do not use the product for foods, drinks, medical chemicals, etc., because it is
not of sanitary specifications.
Do not use the product in the atmosphere of an inflammable gas, etc., because it
is not of explosion-proof specifications.
Working environment and applicable fluid
Note
Do not apply any fluid other than air (compressed air used in factories) to this
flow meter. (The meter can be applied for nitrogen by factory setting before
shipment from our factory.)
Observe the temperature and humidity ranges (-10 to +60C and 90%RH or
lower) and pressure range (the atmospheric pressure to less than 1 MPa) in
use.
Avoid usage in an ambient containing a corrosive gas (chlorine, hydrogen
sulfide, etc.) and/or for an application to a fluid containing a corrosive gas.
This flow meter is not of a perfect waterproof structure (IP64). Do not install it at
a place that may be submerged in water.
Install the flow meter as far away from an electric noise source as possible. If it is
installed near the electric noise source, ground the shield of the external
connection cable.
The installation of a sunshade is recommended if the flow meter is exposed to
direct sunlight.

4
Operation
Note
This flow meter is not a specified measuring instrument defined in Japanese
measurement law. The product cannot be used for billing transactions or
certification.
When opening a valve to start fluid flow, open the valve not all at once but
gradually. Opening of the valve all at once may cause a failure of the flow meter
if a pressure difference is occurring between the upstream side and
downstream side of the valve.
Storage
Note
Store the flow meter at a place away from fire and not exposed to direct
sunlight.
Do not place any combustible material, inflammable substance and heating
body in the periphery of the flow meter.
Store this flow meter at a place which ambient temperature is -20 to +70C and
where no dew condensation occurs.
Piping
Warning
Do not ride on this flow meter using it as a foothold.
Do not hold the display section of this flow meter.
Note
In the case that a flow-regulating valve, etc., that may cause turbulence of the
flow is installed, its location must be on the downstream side of the flow
meter.
In the case of new piping, install the product after sufficient cleaning of the
pipe(s).
Vertical piping is recommended when mist, dust, etc. are contained in a large
amount. In horizontal piping, install the flow meter in such a way that the
display section faces upward.
Do not install the product in locations where strong compressive force, tensile
force, or load may be applied after its installation.
Arrange piping so that the flow direction conforms to the direction of arrow
indicated on the flow meter’s body.
Do not drop it or do not make it bumped. Do not apply excessive impact,
either.
When rotating the display section, do not apply a force in a direction other
than the rotating direction.
Keep hands off the ultrasonic sensors.

5
Wiring
Danger
When performing wiring work, follow the instructions in this Manual.
Use the product within the rating.
Do not use the product on a voltage exceeding permissible load.
Note
Do not place the product’s external connection cable together with or near to
power supply line(s) or power line(s), etc.
Electrical isolation of a remote counter (a receiver) from others is
recommended.
Do not apply an excessive tensile force to the external connection cable.
Ensure that the cable tip is not soaked in water during wiring work, etc.
When connecting the power supply wire of the external connection cable to an
external power supply, be careful not to short-circuit it. Use an external power
supply having a short-circuit protecting function.
Be sure to perform the wiring work in a state that power supply from the
external power supply is interrupted.
Do not perform operation and the wiring work with wet hands.
Disassembling and inspection
Note
Do not disassemble this flow meter.
Presence of fluid flow makes a pilot lamp light up in a normal state. In the case
of no indication of the pilot lamp, contact our branch or sales office nearby.
If mist and dust is contained in a large amount, disconnect the flow meter
periodically to check for the presence of dirt etc., and remove it as necessary.
Be careful not to touch the ultrasonic sensors during inspection.
Disposal
Warning
A lithium ion battery is incorporated in this flow meter. NEVER dispose of this
flow meter through general disposal routes. [Built-in battery type]
NEVER throw this flow meter into a fire. Otherwise, it may catch a fire or
explode. [Built-in battery type]

1.
1-
F
1-
2
Introdu
c
1. Scop
e
Upon deliv
e
Ultras
o
Cente
M4 h
e
Flang
e
Instru
c
(This
d
Bolt s
e
(Bolts
/
Exter
n
(exter
n
F
LOW METER
2
. Name
Screw con
type
c
tion
e
of suppl
y
e
ry of the p
r
Name
o
nic flo
w
met
e
ring collars
e
xagonal wre
n
e
gasket
c
tion Manual
d
ocument)
e
t
/
nuts/plain wa
n
al connectio
n
n
al power su
p
CENTERIN
G
COLLARS
of each
p
nection
S
P
N
y
r
oduct, conf
i
e
r 1
4
n
ch 1
2
1
shes) 1
n
cable
p
ply type) 1
G
HEXAGO
N
WREN
C
p
art
EXTERNA
L
CONN
E
SE
T
BU
T
SET
S
P
ECIFICATION
N
AME PLATE
i
rm that the
Q’ty
See
Acce
s
Acce
s
set
The b
o
of req
Acce
s
5 m o
r
N
AL
C
H
FLA
N
GAS
K
(WA
F
CONNE
C
TY
P
L
OUTPUT
E
CTOR
T
TING
T
TON
S
CREW
6
following it
e
about usage.
s
sory of the w
a
s
sory of the w
a
olts/nuts/plai
n
uired quantiti
e
s
sory of the w
a
r 20 m (Optio
n
N
GE
K
ETS
F
ER
C
TION
P
E)
OPE
M
A
W
e
ms are con
Remarks
a
fer connecti
o
a
fer connecti
o
n
washers are
e
s
a
fer connecti
o
n
)
RATION
A
NUAL
C
W
afer conn
e
DI
S
ULTR
A
t
ained in th
e
o
n type
o
n type
put into a ba
g
o
n type
BOLT SET
(WAFER
ONNECTION
TYPE)
e
ction type
S
PLAY SECTI
O
BODY
A
SONIC SENS
O
e
package:
g
in a set
EXTERN
A
CONNECT
I
CABLE
O
N
CASING
O
R
A
L
I
ON

7
2. Installation
This flowmeter can be installed both indoors and outdoors and on a horizontal pipe and a
vertical pipe.
When a large amount of mist and/or dust exists inside pipe, the vertical piping is
recommended. When installing the flow meter horizontally, install it in such a way that the
display section faces upward.
This flow meter is not of a perfect waterproof structure (IP64). Do not install it at a place where
may be submerged in water.
The use of a sunshade is recommended if the flow meter is exposed to direct sunlight.
If you install the flowmeter in the place where it may get wet with rain, install the flowmeter so
that the display section does not face downward.
When you carry out the piping work, keep hands off inside the body and the ultrasonic
sensors (see Page 6) in particular.
Do not hold the display section of the flow meter.
Flow direction:
Mate the forward flow direction of a fluid to the arrow of the body.
It is recommended that Setting Up (Page12 onward) and changing Panel angle
adjustment: (Page 11) are carried out before installation.

8
Straight run requirements:
Figure 2-1 Recommended straight pipe run
(D: nominal diameter)

9
When the flow meter is installed near a pressure-reducing valve or a flow adjustment valve,
strictly observe the “required straight run L” as shown in Figure 2-2, because ultrasonic noise may
be generated inside the pipe.
Note that when the flow meter is installed at the downstream of the pressure-reducing
valve etc., there are many constraints. (If conditions are not satisfied, there is a possibility
that flow cannot be measured.)
Required straight run L (mm) =
10D  differentialpressure󰇛kPa󰇜󰇛 
⁄󰇜
20󰇛 
⁄󰇜󰇛0.8󰇜
Figure 2-2 Required straight pipe run for installation near valve

W
a
Fl
a
S
c
a
fer conn
e
Install t
h
flow me
t
connec
t
central
a
is reco
m
provide
d
Figure
2
provide
d
gaskets
to the c
e
flow me
t
it is diffi
c
both up
s
the mis
a
collars
o
a
nge type:
Install th
pipe. To
recomm
e
insert th
e
when in
s
For
gas
k
c
rew conn
e
Fix the fl
U
P
e
ction type
:
h
e flowmete
t
er is aligne
d
t
ed. To redu
c
a
xes of the
f
m
mended th
a
d
as access
o
2
-3, insert t
h
d
as access
o
and flange
s
e
ntering col
l
t
er can be
a
c
ult to instal
s
tream and
a
lignment e
t
o
nly at the u
e flange ty
p
reduce the
e
nded that
t
e
centering
s
talling the
u
the wafer c
o
k
ets will not
e
ction typ
e
owmete
r
b
y
F
F
P
STREAM
S
:
r so that th
e
d
to that of
p
c
e the displ
a
f
low meter
a
a
t the cente
o
ry be used
h
e centering
o
ry into the
s
. By fitting
t
l
ars, the ce
n
a
ligned to th
a
l the centeri
downstrea
m
t
c. of pipes,
pst
r
eam sid
p
e flow met
e
displaceme
n
t
he centerin
g
collars prov
u
pstream si
d
Figure
o
nnection t
y
extend insi
d
e
:
y
screwing it
s
F
WD025: 3
6
F
WD032: 4
7
S
IDE
e
central axi
s
p
ipes to be
a
cement of
t
a
nd the pipe
ring collars
. As shown
collars
holes of fla
n
t
he flow me
t
n
tral axis of
t
a
t of the pip
ng collars a
m
sides due
install the
e.
e
r so that th
e
n
t of the ce
n
g
colla
r
s pr
o
ided as acc
e
d
e.
2-4 Attach
i
y
pe and flan
g
d
e a pipe.
s
taper pipe
6
to 38 Nm
7
to 49 Nm
CENTERI
N
10
s
of the
t
he
s, it
in
n
ge
t
er
t
he
e. If
a
t
to
e
central axi
n
tral axes o
f
o
vided as a
c
e
ssory into
t
i
ng centeri
n
g
e connecti
o
e
threads to
N
G COLLAR
s
of the flo
w
f
the flow m
e
c
cessory be
t
he holes of
n
g collars
o
n type, tak
e
pipes within
Figure 2-3
A
Gasket
Centering c
o
w
meter is al
i
e
ter and the
u
sed. As sh
o
flange pac
k
e
care so th
the followi
n
DOWNST
R
A
ttaching
c
llars
igned to th
a
pipe, it is
own in Figu
k
ings and fl
a
h
at the flang
e
n
g torque ra
R
EAM SIDE
c
entering c
o
G
a
Centerin
g
co
a
t of a
re 2-4,
a
nges
e
nge.
o
llars
a
sket
llars

Pan
e
e
l angle a
d
The displa
y
change th
e
the displa
y
display se
c
position.
When rota
t
in a directi
o
The disp
l
clockwis
e
the setu
p
d
justment:
y
can be rot
e
direction o
f
y
section wit
h
c
tion. Do no
t
t
ing the dis
p
o
n other tha
l
ay section
c
e
and 180
c
p
at the fact
o
a
ted. It is r
e
f
the displa
y
h
the M4 he
t
fail to fix t
h
p
lay section,
n the rotati
n
c
an be rotat
e
c
ountercloc
k
o
ry.
1
1
e
commende
d
y
section, te
m
xagonal wr
e
h
e display s
e
do not app
l
n
g direction.
e
d by 90
k
wise from
d
to change
m
porarily lo
o
e
nch provid
e
e
ction by tig
l
y force
the directio
o
sen a set
s
e
d as acces
s
h
tening the
o
n before in
s
s
crew on th
e
sory, and th
set screw a
s
tallation. T
o
e
neck part
o
en rotate th
t a desired
DEFA
U
SETTI
N
o
o
f
e
U
LT
N
G

12
3. Setting Up
For this flow meter, 20 items shown in Table 3-1can be set. On delivery from factory, the “factory
default settings” in Table 3-1 are arranged, so that the flow meter can be used as it is. Change the
setting as necessary to make them suit to your working conditions.
See “4. Display” about button operations and setting methods.
Table 3-1 Setting items and standard factory settings
Setting item Setting options Factory settings
F1 Indication and output Forward flow, forward and reverse
flow Forward flow
F2 Analog output
full scale flow-rate 0 to 99999 [m3/h]
25A:300
32A:600
40A:700
50A:1200
65A:2000
80A:2500
100A: 5000
150A: 10000
200A: 20000
F3 State of contact output Normal open,
Normal close Normal open
F4 Contact output
Reverse flow pulse, upper/lower
limit flow-rate alarm,
error alarm, electronic statement
output
Upper/lower limit flow-rate alarm
F5 Lower limit alarm flow-rate -59999 to 59999 [m
3
/h] 0 [m
3
/h]
F6 Upper limit alarm flow-rate -59999 to 59999 [m
3
/h] 59999 [m
3
/h]
F7 Alarm judgment value
hysteresis width 0 to 9999 [m3/h] 0 [m3/h]
F8 Flow-rate moving average
number of times 01, 02, 04, 08, 16, 32, 64 [times] 04 [times]
F9 Output pulse unit 100 [L]
1000 [L] for 100A and larger
F10 Pulse output method Duty or one shot
50, 100, 125, 250, 500 [ms] Duty
F11 Flow-value conversion
selection
Yes (Normal),
Yes (Standard), No conversion Yes (Normal)
F12 Standard conversion
temperature -10 to 60 [°C] 20 [°C]
F13 Test mode time selection 3, 60, Unlimited [minutes] 3
F14 Fluid selection Air (25A–200A)
Nitrogen (25A–80A)
The kind of gas is set as the kind
specified at the time of order.
F15 Current output correlation
value
Instantaneous flow-rate, pressure,
temperature Instantaneous flow-rate
F16 Low flow cutoff flow-rate 0 ≤Set value ≤Qmin*2 [m3/h]
25A:0.1
32A:0.2
40A:0.2
50A:0.4
65A:0.6
80A:0.8
100A: 2.6
150A: 5.0
200A: 9.0
F17 Atmospheric pressure of
the working environment 000.0 to 999.9 [kPa] 101.3
F18 With or without pressure
value averaging With (10 times), without (1 time) With (10 times)
F00 Reset of all of
accumulated values To be cleared, not to be cleared Not to be cleared
FFF
*1
Reset to standard factory
delivery settings To be reset, not to be reset Not to be reset
It is recommended that the setting of the flow meter be carried out before installation.

13
Notes:
1. After resetting, "F9: Output pulse unit" will be set to 1000 [L], and “F14: Fluid selection” will be
set to Air.
2. Qmin is the following value depending on the nominal diameter.
25A 32A 40A 50A 65A 80A 100A 150A 200A
0.6 1.1 1.3 2.5 4.0 5.0 10.0 24.0 40.0
Setting items include the one related to fluid to be applied, the ones related to measurement and
indication, and the ones related to outputs.
3-1. Measurement and indication setting
Indication of “Forward flow” or “Forward/reverse flow” [F1]
Indication of a main display is set.
When the “Forward flow” is selected, forward accumulated flow volume (total) or accumulated
flow volume (trip) can selectively be indicated on the main display by button operation.
When the “Forward/reverse flow” is selected, forward accumulated flow volume (total) or reverse
accumulated flow volume (total) can selectively be indicated on the main display by button
operation. When the analog output (4-20 mA) is selected for the flow-rate output, the electric
current value of the zero flow-rate output becomes 12 mA.
Flow-rate conversion
Select one among “actual flow-rate (OFF)”, "normal conversion flow-rate (Normal)", or "standard
conversion flow-rate (Standard)". If you select "normal conversion flow-rate (Normal)" or
"standard conversion flow-rate (Standard)", both indication and output of accumulated flow rate
and instantaneous flow rate are converted into the values under normal conditions or standard
conditions.
[m
3
/h]
Settingrelatedtomeasurementandindication




Forwardflowor
Forward/reverseflow
F1
Indicationandoutput
Flowrateconversion
orActualflowrate
F11
Flow‐rateconversion

14
3-2. Output setting (for external power supply type)
Current output [F15]
One of three output forms of instantaneous flow-rate, pressure and temperature can be
selected for the current output to suit your usage.
When the instantaneous flow-rate is selected, electric current corresponding to the setting of
the maximum flow-rate value of the analog output is outputted.
When the pressure is selected, 4 mA is outputted at the atmospheric pressure, and 20 mA is
outputted at 1 MPa.
When the temperature is selected, 4 mA is outputted at -10C, and 20 mA is outputted at
+60C.
Maximum flow-rate value of the analog current output (Analog output FS flow-rate) [F2]
When the analog output is used by setting to the instantaneous flow-rate, it is recommended
that full scale flow-rate (FS flow-rate) of the analog current output be set with a value
corresponding to maximum flow-rate used.
It is recommended that a numerical value having a margin be set as a set value of the FS
flow-rate.
(Setting example of the FS flow-rate: A set value at the time of nominal diameter 50mm,
flow-rate conversion “With(ON)”, room temperature (30°C), pressure 0.7 MPa, flow speed
10m/s: 600 m3/h)
It is recommended that the setting of the flow meter be carried out before installation.
Outputsettings
Unitofoutputpulse F9
Outputpulseunit
Opendrainoutput2
Pulseoutput
(reverseflow)
Alarmoutput
F3
Alarmoutput
F5
Lowerlimitalarm
F6
Upperlimitalarm
F7
Alarmjudgmentvalue
F4
Contactoutput
Currentoutput F15
Currentoutput
Instantaneous
flow‐rate
F2
AnalogoutputFSflow‐rate
Pressure
Temperature

15
As a reference, Table 3-2 shows examples of conversion.
Table 3-2 Flow rate conversion examples
Pressure
(MPa)
0 (Atmospheric
pressure) 0.5 0.7 0.98
Temperature
(C) 0 30 0 30 0 30 0 30
FWD025 0.6(m
3
/h) 0.6 0.5 3.6 3.2 4.7 4.3 6.4 5.8
35(m
3
/h) 35 32 210 190 280 250 370 330
FWD032 1.1(m
3
/h) 1.1 1.0 6.5 5.9 8.7 7.8 12 11
65(m
3
/h) 65 59 390 350 510 460 690 630
FWD040 1.3(m
3
/h) 1.3 1.2 7.7 7.0 10 9.3 14 13
80(m
3
/h) 80 72 470 430 630 570 850 770
FWD050 2.5(m
3
/h) 2.5 2.3 15 13 20 18 27 24
150(m
3
/h) 150 135 890 800 1180 1070 1600 1440
FWD065 4(m
3
/h) 4.0 3.6 24 21 32 29 43 39
240(m
3
/h) 240 220 1420 1280 1900 1710 2560 2310
FWD080 5(m
3
/h) 5.0 4.5 30 27 40 36 53 48
300(m
3
/h) 300 270 1780 1600 2370 2140 3200 2880
FWD100 10(m
3
/h) 10 9 59 53 79 71 110 96
500(m
3
/h) 500 450 2970 2670 3950 3560 5340 4810
FWD150 24(m
3
/h) 24 22 140 130 190 170 260 230
1200(m
3
/h) 1200 1080 7120 6420 9490 8550 12810 11540
FWD200 40(m
3
/h) 40 36 240 210 320 290 430 390
2000(m
3
/h) 2000 1800 11870 10700 15820 14250 21340 19230
Output pulse unit [F9]
When a pulse output of the open drain output 1 (forward pulse output) is used, set the output
pulse unit in advance so as to suit your working conditions. The output pulse unit set here is
reflected in the open drain output 2 (reverse flow pulse output), too.
Contact output [F4]
You can select from the pulse output (reverse flow), the flow-rate upper/lower limit alarm output,
and the main unit aberration output. When the pulse output (reverse flow) is selected, set the
output pulse unit. However, when the output pulse unit is set in advance for the use of the open
drain output 1 (forward flow pulse output), it is not necessary to set it here.
For the upper/lower limit alarm output, an alarm can be outputted or stopped with a desired
flow-rate value.
When this function is selected, set the alarm output contact state (F3), the lower limit alarm
flow-rate (F5) and the upper limit alarm flow-rate (F6), and the alarm judgment value hysteresis
width (F7).

4.
4-
B
B
B
Displa
y
1. Butto
n
Usuall
y
flow v
o
Variou
on the
See F
i
By pe
r
as sh
o
Table 4-1
B
utton positio
n
Button
position
Back left
B
ack right
B
ack center
S
BA
C
P
y
n
operati
o
y
is the me
a
o
lume, and
t
s individual
back of the
i
gure 4-1 a
b
r
forming but
t
o
wn in Figur
e
How to op
n
and name
Name
SW1
C
a
a
i
n
C
a
r
e
(
t
(
L
SW2
C
fl
P
SW2 for
three
seconds
C
SW3
C
S
W1+SW2
1)
R
z
C
K LEFT BUT
T
P
ILOT LAMP
Fig
o
ns
a
surement
m
t
he sub-dis
p
setting item
display se
c
b
out the arr
a
t
on operati
o
e
4-2.
erate butto
Measu
r
C
hangeover o
f
a
ccumulated fl
a
ccumulated fl
n
stantaneous
C
hangeover o
f
a
ccumulated fl
e
verse accu
m
t
otal) / instant
a
L
/min)
C
hangeover o
f
o
w
-late (m
3
/h
P
ressure / te
m
C
hangeover t
o
C
hangeover t
o
R
esetting of tri
z
ero
3)
Back side of
t
T
ON [SW1]
ure 4-1 Dis
m
ode, and t
h
p
lay (lower
c
s can be se
t
c
tion.
a
ngement of
o
ns in Table
ns in mea
s
r
ement mode
f
Forward
ow volume (t
o
ow volume (t
r
flo
w
-late (L/
m
f
Forward
ow volume (t
o
m
ulated flow v
o
a
neous flo
w
-
l
f
Instantaneo
u
)
/
perature
2)
o
test mode
o
setting mod
e
p accumulati
o
he panel
16
s
play and b
u
h
e main dis
p
c
olumn) sho
w
t at a local
s
f
“SW1”, “S
W
4-1, the flo
w
s
urement
m
L
o
i
n
o
tal) /
r
ip) /
m
in) Chan
g
next
s
o
tal) /
o
lume
l
ate
u
s
Chan
g
previ
o
item
e
Chan
g
o
n to Chan
g
indic
a
and s
e
u
ttons
p
lay (upper
c
w
s instanta
n
s
ite by the t
h
W
2” and “S
W
w
meter can
m
ode, settin
g
Setting
o
cal setting
n
dication
g
eover to the
s
etting item
g
eover to the
o
us setting
g
eover to me
a
g
eover of loc
a
tion
e
tting of detai
l
BA
C
B
A
B
A
BA
C
MA
I
(U
P
SU
B
(LO
W
c
olumn) sh
o
n
eous flow-
r
ree button
s
W
3.”
be shifted t
g
mode, a
n
mode
Setting o
f
details
Changeover
setting detail
Movement o
f
blinking digit
Change of a
numerical v
a
at a blinking
portion
a
surement m
o
a
l setting
s
C
K RIGHT B
U
CK LEFT BU
T
CK CENTER
C
K RIGHT B
U
I
N DISPLAY
P
PER COLUM
B
-DISPLAY
W
ER COLU
M
o
ws accum
u
r
ate.
s
witches pr
o
t
o various
m
n
d test mo
d
Test m
o
f
of
l
s,
f
t
a
lue Switcho
v
measur
e
mode
o
de
U
TTON [SW2
]
T
TON [SW1]
BUTTON [S
W
U
TTON [SW2
]
M
N)
M
N)
u
lated
o
vided
m
odes
e
o
de
v
er to
e
ment
W
3]

17
Notes:
1. “SW1+SW2” indicates that two switches are pressed simultaneously.
2. Indication cannot be changeover when the main display shows the instantaneous flow-rate
[L/min].
3. Accumulated flow volume (trip) is reset to zero in the following cases:
When SW1+SW2 are pressed during the indication of accumulated flow volume (trip)
If power supply is interrupted by a power failure [External power supply type]
Figure 4-2 Transitions between each operation mode
ト リ ッ プ積 算流量
正積算流量
メイン表示（正流表示モード） SW1+SW2/ ﾄﾘｯﾌﾟ積算ｸﾘｱ
SW1
メイン表示（正逆流表示モード）
設定モード[F1]で切換
設定モードへ遷移 テストモードへ遷移
SW2 (3s) SW 2 ( 3s) o r テ ス トモード
時間終了
SW3 SW3 or3min無操作
計
測
モ
|
ド
瞬時流量
[L/min]
SW1
SW1
逆積算流量
正積算流量 瞬時流量 [L/min]
SW1
SW1
SW1
サブ表示（メイン表示：瞬時流量の場合[L/min]）
ブランク
瞬時流量 圧力 温度
SW2 SW2
1min
経過
or1min経過
SW2
サ ブ 表 示 （メ イン 表示 が正 積算流量、トリッ プ 積算流 量、逆積 算流 量の いず れかの 場合 ）
Main display (Forward flow
display mode)
Measuring modes
Transition to test mode
Switchover using
settings mode [F1]
Clear trip accumulated flow volume Main display (Forward flow display mode)
Accumulated flow
volume
(
Forward flow
)
Trip accumulated flow
volume
Accumulated flow
volume (Forward flow) Accumulated flow rate
(Reverse flow)
Sub-display (When main display displays Accumulated flow volume (Forward flow), Trip accumulated flow
volume, or Accumulated flow volume (Reverse flow))
SW2 or one minute elapses.
One minute
elapses.
Instantaneous flow-rate
[L/min]
Sub-display (main display) under instantaneous flow-rate [L/min]
Instantaneous flow
rate
Pressure Temperature
SW3 or three minutes of
inaction.
SW2 (3 sec.) or test mode
time ended.
Blank
Instantaneous flow-rate
[
L/min
]
Transition to settings mode

4-
2
M
e
2
. Oper
a
e
asureme
n
This
this
m
The
m
(low
e
Swit
c
W
•


a
tion mod
e
n
t mode
mode is fo
r
m
ode unles
s
m
ain displa
y
e
r column) s
c
hover of t
h
W
hen the f
o
• Each ti
m
to insta
flow).

By pre
s
display
e

If the t
r
show
0
operati
o
Accumul
a
e
s
r
measuring
s
you opera
t
y
(upper col
u
hows the in
Figure 4-
3
h
e main di
s
o
rward flow i
m
e SW1 is
p
ntaneous fl
o
Figure
4
s
sing SW1
a
e
d, trip acc
u
r
ip accumul
a
0
000000.0
o
ns.
Figure
4
a
tedflowvolu
m
flow-rate,
p
t
e any of its
u
mn) displa
y
s
tantaneou
s
3
Exampl
e
s
play
s selected i
n
p
ressed, the
o
w-rate [L/
m
4
-4 Main
d
a
nd SW2 si
m
u
mulated flo
w
a
ted flow v
o
without z
e
4
-5 Trip acc
u
No overflo
w
m
eTrip
a
18
p
ressure, a
n
buttons.
y
s the accu
m
s
flow-rate.
e
of measu
r
n
[F1: Indic
a
e
display will
m
in] and th
e
d
isplay (fo
r
m
ultaneous
w
volume c
a
o
lume overfl
e
ro suppre
s
u
mulated f
l
w
a
ccumulatedfl
o
n
d temperat
u
m
ulated flo
w
r
ement mo
d
a
tion/output
]
cycle from
t
e
n to accu
m
rw
ard flow)
ly while trip
a
n be canc
e
ows beyon
d
s
sion and
l
ow volum
e
o
wvolume
u
re. The m
e
w
volume, a
n
d
e
]
t
rip accumu
l
m
ulated flow
accumulat
e
e
led.
d
9999999.
9
continue
i
e
Overflow
Instantaneous
f
e
ter will re
m
n
d the sub-d
lated flow v
o
volume (f
o
e
d flow vol
u
9
, the displ
a
its accum
u
flow‐rate[L/m
i
ain in
isplay
o
lume
rward
me is
a
y will
u
lation
i
n]

Test
W
h
•
Sub-di
s
In t
h
volu
Eac
h
mai
n
Wh
e
the i
mode
The test m
o
‒Perfor
m
during
t
flow-ra
t
‒During
interval
‒Test m
o
setting
measu
r
during
t
‒When
a
there i
s
‒When
a
there i
s
*Possi
b
convec
t
‒An inst
a
place.
Examp
l
A
c
h
en forward
/
Each tim
e
(Reverse
volume (f
o
Fi
g
s
play (low
e
h
e case of [
M
me (trip), a
n
h
time “SW
2
n
tenance*1)
a
e
n one minu
ndication is
o
de is a fun
c
m
the test m
o
t
he measur
e
t
e can be m
e
the test mo
d
s of 0.5 se
c
o
de times o
f
mode. Whe
r
ement mod
t
he test mo
d
a
n indicated
s
a possibilit
y
a
n indicated
s
a possibilit
y
b
ility of leak
a
t
ion, etc., it
a
ntaneous f
l
e) Indicatio
n
Indic
a
c
cumulatedflo
w
(Forwardfl
/
reverse flo
w
e
SW1 is p
r
flow) to in
s
o
rward flow
)
g
ure 4-6 M
a
e
r column)
M
ain display
n
d reverse
a
2
” is presse
d
a
nd instant
a
te elapses
d
shifted to t
h
c
tion that re
o
de in a sta
t
e
ment mod
e
e
asured.
d
e, a unit of
onds.
f
three kind
s
n the set ti
m
e [F13]. Wh
d
e, it is shift
e
value of th
e
y
of leakag
e
value of th
e
y
of leakag
e
a
ge: As an i
n
indicates o
n
low-rate du
r
n
: 0 to 0.00
4
a
tion: -0.00
4
w
volume
ow)
1
9
w
is selecte
d
r
essed, the
s
tantaneous
)
.
a
in display
y
: Forward a
a
ccumulate
d
d
,” the indic
a
a
neous flow
-
d
uring the i
n
h
e instantan
leases low
f
t
e of no flo
w
e
, the mode
f
the sub-dis
s
of 3 minut
e
m
e elapses,
h
en the “SW
2
e
d to the m
e
e
instantane
e
* at the do
w
e
instantan
e
e
* at the up
s
n
dicated va
l
n
ly a possibi
r
ing the test
4
[m3/h] →
4
to 0 [m3
/
h]
Accumula
t
(Re
v
9
d
in [F1: Ind
i
display will
flow-rate [
L
(forward/r
e
ccumulated
d
flow volum
a
tion chang
e
-
rate.
n
dication of
p
eous flow-r
a
f
low cutoff t
e
w
. When “S
W
is shifted to
play (“m3
/
h”
e
s, 60 minut
the test mo
d
2
” is presse
e
asurement
ous flow-ra
t
w
nstream si
d
e
ous flow-ra
t
s
tream side.
ue includes
lity.
mode is in
d
0.00 [m3/h]
→-0.00 [
m
t
edflowvolum
v
erseflow)
cation/outp
u
cycle from
L
/min] and
e
verse flow
)
flow volum
e
e (total)]
e
s in order
o
p
ressure, te
m
a
te automat
i
e
mporarily.
W
2” is press
e
the test m
o
, “kPa”, “C
”
e
s, and no l
d
e is autom
a
d
for 3 sec
o
mode.
e is a flow-r
a
d
e.
t
e is a flow-
r
offset of ze
d
icated by r
o
m
3/h]
eInstant
a
u
t]:
accumulat
e
then to ac
c
)
e
(total), ac
c
o
f pressure,
mperature
o
ically.
ed for 3 se
c
o
de so that
a
”
, “L/min”) b
imit can be
atically shif
t
o
nds or mor
e
ate value o
f
r
ate value o
f
e
ro flow-rate
o
unding at
3
a
neousflow‐ra
t
e
d flow volu
c
umulated f
c
umulated fl
temperatur
e
o
r maintena
n
c
onds or mo
r
a
very small
l
inks at the
selected in
ed to the
e
once agai
n
f
(+)0.1 or m
f
-0.1 or les
s
,
inside
3
rd decimal
t
e[L/min]
me
low
ow
e
,
n
ce,
r
e
the
n
ore,
s
,