Hydronix Hydro-View HV02, Руководство пользователя

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FIELD CONNECTIONS
56
HYDRO-VIEW USER GUIDE
D0022
REV 1.06
Adjusting the Hydro-View mains operating voltage
The mains input voltage for the Hydro-View is selected
internally as follows…
1. Remove the 7 screws securing the lid to the case.
2. Remove the lid to reveal the mains transformer and
power supply assembly which is mounted on the
inside of the lid.
3. Move the BROWN wire to select the appropriate
mains voltage as indicated in Figure 19 opposite.
4. Refit the lid and screws.
5. Indicate the new operating voltage on the rear panel
using the labels supplied.
Field connections
All field connections (except mains and RS232 serial port) are made via plug-in screw
terminal blocks located on the rear panel of the instrument.
You should refer also to the wiring labels fitted to the lid of the Hydro-View.
The terminals (numbered 1 through 21) are allocated as follows…
Terminal
group
Group function Terminal Description
1 - 5 Moisture sensor
connections 1 +15V sensor power
2 0V sensor power return
3 -15V sensor power
4 0-10V sensor input +
5 0-10V sensor input -
6,7 Analogue output 6 0-10V or 4-20mA analogue output
7 Analogue output return
8-12 RS485 serial port 8 Data A
9 Data B
10
11
12 RS485 0V (for test purposes only)
13-17 Digital inputs 13 +Vdc Input excitation supply
14 Digital input 1
15 Digital input 2
16 Digital input common
17 0Vdc Input excitation supply return
18-21 Relay outputs 18 Relay common
19 Alarm
20 Set-point 1 or material select output 1
21 Set-point 2 or material select output 2
•
Figure 19 - Hydro-View mains
transformer