Table of Contents
Advertisement
CAUTION
(1) Select the cable run location so they are away from electrical equipment (motors, transformers,
or radio transmitters) which causes electromagnetic or electrostatic interference.
(2) Deterioration of flowmeter circuit insulation occurs if the converter interior or cable ends get wet
or humidified. This in turn causes malfunction of flowmeter or noise problems. Avoid a rainy
day if the flowmeter is to be installed outdoors. Even indoors, prevent water from splashing over
the flowmeter. Try to finish the wiring as quickly as possible
(3) The converter has a surge arrestor/protector installed inside. Therefore, do not conduct a
withstand voltage test for the converter. To check the insulation of the converter, use a voltage
of 250Vdc or less.
(4) After wiring, be sure to install the terminal block protection cover.
(5) Because the excitation cable and flow rate signal cable transmit very delicate signals, pass each of
them separately through a thick steel conduit tube, keep them away from the large current wiring as
far as possible, and do not install them in parallel.
LF622F
5.1 Cables
Use the kind of cables shown in Table 5.1 to wire the converter.
Name
3-core vinyl sheathed cable or 2-core vinyl
Power cable
sheathed cable
Output signal
Use a shielded cable of finished outer diameter 9 to 14mm and nominal
cable
cross-sectional area 1.25mm
Flow rate
2-core shielded chloroprene cabtyre cable
signal cable
LF622F
Excitation
3-core chloroprene cabtypre cable
cable
LF622F
Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com
Table 5.1 Installation Cables
Cable name
.
2
－ 23 －
Nominal
Finished
cross-sectional
outer
area
diameter
2 mm²
11~13mm
0.75 mm
11~13mm
2
2 mm
2
11~13mm
1.25 m
2
6 F 8 A 0 9 2 8
Description
CVV JIS C
3401,IEC60695,IEC607
54,IEC60227,IEC60245
or equivalent
CVV-S JIS -258-C or
equivalent
2PNCT-S
JIS C 3327 or
equivalent
2PNCT
JIS C 3327 or
equivalent
Advertisement
Table of Contents
Troubleshooting
