Campbell CS526 Instruction Manual - Cs526 Isfet Ph Probe
CS526 ISFET pH Probe
1. Introduction
The CS526 ISFET pH Probe measures pH from 1 to 14 in aqueous or semi-
solid solutions. It outputs TTL serial data that is read by compatible
dataloggers (see Section 6, Specifications).
Before using the CS526, please study
• Section 2, Cautionary Statements
• Section 3, Initial Inspection
• Section 4, Quickstart
More detailed instructions for operation, troubleshooting, and maintenance are
available in the remaining sections.
2. Cautionary Statements
• Campbell Scientific warranty does not cover a clogged reference diaphragm or
improperly cleaned or maintained ISFET chip (see Section 11, Maintenance).
• Maximum input voltage is 5 Vdc. Incorrect wiring may cause performance
loss and irreversible damage.
• To prevent scratching the sensor chip when cleaning, first soak the sensor in
soapy water and then gently scrub with a toothbrush (see Section 11,
Maintenance). Most scratches occur when hard particles are rubbed on the
chip surface. Scratches cause irreversible damage to the probe.
• Do not use hydrofluoric acid, acetone, MEK, or similar agents to clean the
probe.
• Cable can be damaged by abrasion, rodents, sharp objects, twisting, crimping
or crushing, and pulling. Take care during installation and use to avoid cable
damage.
• The CS526 is rugged, but it should be handled as a precision scientific
instrument.
• The CS526 has no user-serviceable parts. Any attempt to disassemble the
device will void the six-month warranty.
• Care should be taken when opening the shipping package to not damage or cut
the cable jacket. If damage to the cable is suspected, consult with a Campbell
Scientific applications engineer.
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