YSI 5905 Instruction Manual page 10

matte finish. If the cathode remains tarnished, return the probe
for service.
Silver Anode:
It is normal for a dark layer of silver chloride to cover the
silver anode. After prolonged use it may become necessary to
clean the anode. Soak the probe in a 14% ammonium
hydroxide solution for 2 to 3 minutes or overnight in a 3%
ammonium hydroxide solution. Rinse with deionized water,
recharge with electrolyte, and install a new membrane.
Cathode
(Gold)
Figure 3 5905/5010 Sensor
Temperature
Sensor
Anode
(Silver)
6