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Battery Replacement
The low battery indicator (LBT) appears when the 9V battery needs replacing.
1.
Remove the meter's protective jacket.
2.
Open the battery compartment using a coin or screwdriver.
3.
Replace the 9V battery and re-assemble.
Never dispose of used batteries or rechargeable batteries in household
waste.
Users are legally required to take used batteries to appropriate collection
sites, the retail store where the batteries were purchased, or wherever
batteries are sold.
Disposal: Do not dispose of this instrument in household waste. The user is
obligated to take end-of-life devices to a designated collection point for the
disposal of electrical and electronic equipment.
Other Battery Safety Reminders
Never dispose of batteries in a fire. Batteries may explode or leak.
Never mix battery types. Always install new batteries of the same type.
PC Interface
For streaming of data to a PC USB port via the RS232 output jack, the optional 407001-
USB kit (RS232 to USB cable) is required. Contact Extech for a copy of the RS232
software ([email protected])
Calibrating a New Temperature Probe (850188)
1.
Connect the new temperature probe to the meter’s temperature sensor input jack.
2.
Select "pH ATC" via the meter’s front panel slide-switch.
3.
Place the temperature probe in a slurry (water with crushed ice) and allow it to
acclimate for approximately 15 minutes.
4.
Adjust VR6 (inside the battery compartment, see diagram below) until the displayed
value reads 0°C (32°F).
