10
ACCESSO
ri
ES
MAN7640-18 06/21
• Mechanical cleaning of the membrane with abrasives is not recommended.
• Clean the exterior of the probe by wiping with a aqueous-soapy mixture and
gently rubbing persistent spots off. Rinse with clean water.
• Replace the cap and electrolyte if coating persists or membrane damage is evident.
Membrane Cap & Electrolyte Replacement
The membrane cap and electrolyte are designed to provide trouble-free operation
for up to eight weeks. Replacements are required when:
• The membrane cap is physically damaged
• Probe response is slower than usual, especially after many months of use
• DO probe calibration or readings exhibit greater than normal drift, especially
after many months of use
• The membrane cap remains fouled after cleaning procedures were implemented.
Procedure
1. Remove probe from installation.
2. Unscrew and remove electrolyte screw located on the side of the probe body.
3. While holding the probe assembly vertical, unscrew the membrane cap
assembly from the probe body. Discard the old membrane cap assembly. To
remove old electrolyte, shake probe down.
4. Flush the probe body and electrolyte reservoir with tap water. Dry assembly
with a lint-free cloth or tissue.
5. Inspect O-rings for nicks or wear. Discard and replace damaged ones.
6. If tarnished or stained, gently clean the cathode with a lint-free cloth.
7. Follow section 6 of this manual for filling instructions.
Long Term Storage
Discard any electrolyte solution from the reservoir and flush probe body and
reservoir with water. Store the probe with the protective cap on.
11. ACCESSORIES
Ordering Information
Product Description
DO Solutions
HI7040L
Zero oxygen solution set, 500 mL + 12 g
HI7042S
Refilling electrolyte solution, 30 mL
Other Accessories
HI60501
PVC immersion electrode holder
HI60501-0
O-rings for
HI60501
electrode holder
HI605011
PVC mounting flange for
HI60501
electrode holder
HI60503
PVDF immersion electrode holder
HI60542
In-line electrode holder, direct pipe installation
HI740155P
Electrode refilling capillary pipette (20 pcs.)
HI76510-05
Probe extension cable, 5 m (16’5”) long
HI76510-10
Probe extension cable, 10 m (32’9”) long
HI76510-15
Probe extension cable, 15 m (49’2”) long
HI76510-25
Probe extension cable, 25 m (82’) long
HI76510-50
Probe extension cable, 50 m (164’) long
BL120-400
Flow-cell probe adapter kit
BL120-401
Flow-cell valve
BL120-402
Flow-cell tubing,10 m (32’8”) long
BL120-410
Flow cell
BL120-450
Flow-cell kit for Ø 50 mm (2”) pipe
BL120-463
Flow-cell kit for Ø 63 mm (2.5”) pipe
BL120-475
Flow-cell kit for Ø 75 mm (3”) pipe
BL120-500
Probe fitting kit
BL120-550
Probe saddle for Ø 50 mm (2”) pipe, 1¼” thread
BL120-563
Probe saddle for Ø 63 mm (2.5”) pipe, 1¼” thread
BL120-575
Probe saddle for Ø 75 mm (3”) pipe, 1¼” thread
For additional accessories information contact your local sales office.
