Using the junction box, Calibration – Hach-Lange POLYMETRON 8350_8351 Basic User Manual User Manual
Page 6

1
2666 cable
9
-V - grey
2
08350=A=8000 pre-amplifier
10 Input (measured pH or redox) - green
3
Probe
11 Temp+ (PT100) - white
4
External shielding - EMC protection
12 Temp- (PT100) - red
5
Temp+ (PT100) - white
13 Ref. (reference) - black
6
Temp- (PT100) - pink
14 Input (measured pH or redox) - transparent
7
Ref. (reference) - yellow
15 External shielding - EMC protection
8
+V - brown
Using the junction box
1
2654 cable
9
External shielding - EMC protection
2
08350=A=8500 junction box
10 External shielding - EMC protection
3
Probe
11 Input (measured pH or redox) - transparent
4
Input (measured pH or redox) - core
12 Ref. (reference) - black
5
Ref. (reference) - shielding
13 Temp+ (PT100) - white
6
Temp+ (PT100) - white
14 Temp- (PT100) - red
7
Temp- (PT100) - violet
15 Liquid earth (liquid contact) - blue
8
Liquid earth (liquid contact) - yellow/green
For pH probes only:
• Temperature measurement
• Impedance measurement (blue wire from the transmitter):
• Program the control frequency upper and lower limits (refer to the 9135 operator manual):
• Glass impedance: 50 Mohm to 500 Mohm
• Reference impedance: 1 to 100 kohm
Calibration
Before calibrating for the first time:
1. Shake the probe gently to remove any air bubbles from underneath the glass bulb.
2. Remove the storage cap and rinse the probe with demineralized water.
6 English