Installation – KROHNE OPTISENS PH 8500 EN User Manual
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INSTALLATION
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OPTISENS PH 8500
www.krohne.com
04/2012 - 4001927601 - MA OPTISENS PH 8500 R01 en
3.5.1 Connecting the sensor cable to the signal converter
The pH electrodes are available with or without internal Pt100 temperature sensor. Electrodes
without internal Pt100 temperature sensor are connected to the signal converter using a coax
cable. Electrodes with internal temperature sensor use a SixPlug cable.
When ordering the one channel version, only the interface "Pos.A" is populated. In the version
with two channels the interfaces "Pos.A" and "Pos.B" are populated.
DANGER!
All work on the electrical connections may only be carried out with the power disconnected. Take
note of the voltage data on the nameplate!
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
Figure 3-3: Sensor connection terminals on the signal converter dual channel version with terminal block A+B
1 Sensor connection terminals
2 Terminal block S (protective earth)
3 Terminal block A: terminals for sensor and temperature
4 Terminal block B: terminals for sensor and temperature
Wire
Wire
Wire
Wire
Terminal block Pos.A/B
Terminal block Pos.A/B
Terminal block Pos.A/B
Terminal block Pos.A/B
OPTISENS PH 8500 with coax cable (without internal Pt100/1000)
OPTISENS PH 8500 with coax cable (without internal Pt100/1000)
OPTISENS PH 8500 with coax cable (without internal Pt100/1000)
OPTISENS PH 8500 with coax cable (without internal Pt100/1000)
Coax shield (red)
N (ref.)
Coax core (transparent)
O (pH/ORP)
OPTISENS PH 8500 with SixPlug cable (with internal Pt100/1000)
OPTISENS PH 8500 with SixPlug cable (with internal Pt100/1000)
OPTISENS PH 8500 with SixPlug cable (with internal Pt100/1000)
OPTISENS PH 8500 with SixPlug cable (with internal Pt100/1000)
Inner coax shield (black)
N (ref.)
Coax core (transparent)
O (pH)
Sense (3-wire connection Pt100/Pt1000)
U
Pt100 (white)
P
Pt100 (green)
X
Outer shield (green-yellow)
S
.book Page 14 Wednesday, July 4, 2012 9:52 AM