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Introduction
Congratulations on your purchase of the Extech PH220 waterproof pH/mV meter. This
microprocessor-based device with tactile push-buttons is battery operated and ideal for field use.
The PH220 simultaneously displays pH and temperature. The rubber holster which protects the
meter has a magnetic backing for convenient mounting. The built-in memory (25 readings) allows
STORE, RECALL, and CLEAR functionality. Careful use of this meter will provide years of reliable
service.
Specifications
Temperature
pH
Temperature Compensation
Power
Display
Over-range or open indication
pH Calibration points
Auto Power OFF
Low Battery Indication
Dimensions / Weight
Accessories supplied with kit
Range (Resolution)
o
32 to 212
F (<100
o
0 to 100
C (0.1°<100°;1°>100°)
0.00 to 14.00pH (0.01pH)
Note 1: Accuracy does not include pH buffer temperature
coefficient
Note 2: Accuracy specified from 0.02pH to 13.98pH
o
o
32 to 212
F (0-100
C) Automatic 'ATC'
9 volt alkaline battery
Dual LCD display for simultaneous pH and temperature
readings
Displays "HHH" for over-range or open input conditions
Displays "LLL" for under-range
4.00, 7.00, 10.00 (1, 2, or 3 point calibration can be
performed)
10 minutes from last key-press (can be disabled)
Fill bars in the battery display icon
power status. The fewer the bars, the weaker the battery
power.
4.25 x 3.00 x 1.18" (108 x 75 x 30mm) / 4.8 oz. (135g)
Battery, suction cup holder, clip holder, stick electrode for
model PH220-S, standard electrode with 39" cable for model
PH220-C.
2
o
o
o
;1
>100
)
represent battery
PH220-EU-EN V3.2 8/12
Accuracy
o
± 1.0
F
o
± 0.5
C
± 0.02pH
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