Hydronix HD0333, User Manual

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Connecting with Sensors Chapter 2
11
Ethernet Adapter User Guide
HD0333 Issue 2.0.0
Figure 4: Maximum number of sensor connections
NOTE : Operation above these limits may cause premature failure of the unit.
Location of the Power Injector Module (EPI01)
The Power Injector Module (EPI01) should ideally be located in the computer room or network
cabinet close to the router. Identify which drop cable runs to the sensor location, and using a
short patch cable insert the Power Injector into that cable, connecting the port labelled IN to
the router output and the port labelled OUT to the drop cable. Connect a 240V or 110V mains
supply to the Power Injector.
Note: The Power Injector Module can supply sufficient power for up to four Hydronix Hydro-
Probe II sensors or three Hydro-Mix VI, Hydro-Probe Orbiter or Hydro-Probe SE (Hydrotrac)
sensors. If more sensors are to be connected to the network, then a separate power supply
local to the sensors should be used instead of the Power over Ethernet solution.
Connections
Wiring Connections
Ethernet Adapter sensor connections:
Ethernet Adapter Terminal
Signal
Description
MIL Spec pin
number on sensor
Wire Colour in
standard Hydronix
0090A cable
1 24V + input
2 0V input
3 24V + to sensor A Red
4 0V to sensor B Black
5 RS485 B G Black
6 RS485 A F White
HydroMix / Orbiter / HydroProbe SE
0
1
2
3
4
0 10 20 30 40 50 60 70 80
Maxim um Air Tem perature
N
u
m
b
e
r of
S
e
ns
or
s
HydroProbe II
0
1
2
3
4
5
0 10 20 30 40 50 60 70 80
Maxim um Air Tem perature
N
u
m
b
e
r o
f
S
e
ns
or
s