B-144-12-E
5
1.4 Considerations on Construction
(1) The register is of waterproof construction for
outdoor service.
(2) Do not attempt to replace component parts
with others or make any circuit modification.
(3) The pressuretight packing furnished con-
stitutes part of the flameproof construction.
Do not use any pressuretight packing
other than those furnished. The packing
union should be tightened securely upon
completion of the connections.
・
With output: Product code ends with a code
other than 00...Pressuretight packing is
furnished
・
Without output: Product code ends with 00...
Closeup plug is furnished
(4) Of the four different pressuretight packings
(
φ
9,
φ
10,
φ
11 and
φ
12) furnished as
standard accessories, a
φ
11 packing is
tentatively installed in place. Select from
these and install the one that best fits the
finished outside diameter of your particular
cable.
Table 1.1 Applicable Cable Outside Dia.
Unit in mm
Packing Code
Packing I.D.
Cable O.D.
9
9.0
8.5
−
9.0
10
10.0
9.1
−
10.0
11
11.0
10.1
−
11.0
12
12.0
11.1
−
12.0
NOTE
Cable lead-in (pressuretight packing) is not
supplied with models of nonexplosionproof con-
struction. The customer is to supply waterproof
cable gland for this purpose (applicable screw
size G1/2). In this case take precautions against
potential entry of moisture in to the register.
CAUTION: Moisture intrusion into the
register will present a fogging-up display
window and performanse problem.
2. OPERATING CONDITIONS
To maintain the stated high accuracy and long
service life of OVAL flowmeter, make sure that
flowrate, pressure, temperature and viscosity are
within the ratings as stamped on the meter register
nameplate. Do not fail to confirm these ratings
before placing it in service.
CAUTION:
1) Although allowable ambient temperature
is up to +60°C for explosionproof units,
it is desirable that the meter be used at
room temperature and humidity.
2) In case where the register is exposed to elevated temperatures due to exposure to direct
rays of the sun or to radiant heat, ensure, by providing a sunshade or similar protection,
that the meter is used within the operating temperature range.
Register
Lead-in Fitting
(pressuretight
packing)
Made In Japan MNPJ-237
OVAL Corporation
MODEL
TAG. No
MAX PRESS.
FLOW RANGE
INT.
～
CONT.
～
FULL SCALE
TEMP.
PULSE UNIT
SERIAL No.
DATE
SIZE
FLUID
METER FACTOR
1. When measuring other liquids, consult us.
2. Place the meter body (outer case) in a horizontal
position. For details, see instruction manual.
NOTES
