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計測機器 BOQU SD SeriesのPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。BOQU SD Series 15 ページ。 Online colormeter
ページを印刷する5. Installation wiring
6．1．Instrument installation
The instrument shall be installed in a clean, dry, well
ventilated place without vibration。
1．There are 4 studs on the bottom plate for installation。
2 ． Interface between measurement and water sample
collection 1/4" NPT Internal thread ， You can also choose card
sleeve installation.。
Influent mode： Down in and up out， Keep the inflow
valve as small as possible，The best way is that water
does not produce bubbles。
6. 2. Connection mode
L: 220AC
N：220AC
PE: Earthing
V+，V-：DC 24V input
A，B，P+，P-：Communication wiring with front end（A：
Green wire， B： Black wire， P+： Red wire， P-： Yellow wire）
I+： 4-20mA+ output （ Four wire system current positive, No
need to provide 24V）
I-：4-20mA- （Four wire system current negative, No need
to provide 24V）
DO1，com1：Alarm1 relay action
DO2，com2：Alarm2 relay action
DO3，com3：unuse
Operating instructions for SD Series Online Color Meter
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