Hanna Instruments HI9811-5 User Manual

12
The meters is powered by a 9V battery that is located on the rear of
the instrument.
When battery symbol is empty a low battery condition is indicated.
When the low battery indication appears, only a few hours of working
time remains.
It is recommended to replace the battery immediately.
When the battery level is so low that it may cause unreliable measure-
ments, the meter turns off.
Battery replacement must only take place in a nonhazardous area using
a 9V alkaline battery.
Unscrew the three screws on the rear of the meter, remove the battery
compartment cover and replace the 9V battery with a new one while
observing its polarity.
Make sure the battery contacts are tight and secure before replacing
the cover.
BATTERY REPLACEMENT

Hanna Instruments HI9811-5 Specifications

General

Range	0.0 to 14.0 pH 0 to 6000 µS/cm 0 to 3000 mg/L (ppm) 0.0 to 70.0 °C
Typical EMC Deviation	±0.1 pH ±2% f.s. µS/cm ±2% f.s. mg/L (ppm) ±0.5 °C
Conversion Factor	0.5
pH Calibration	Manual, 1-point through offset trimmer
EC/TDS Calibration	Manual, 1-point through slope trimmer
EC/TDS Temperature Compensation	Automatic from 0 to 70 °C (32 to 158 °F) with b=2%/°C
Resolution	0.1 pH 10 µS/cm 10 mg/L (ppm) 0.1 °C
Accuracy (@ 20 °C/68 °F)	±0.1 pH ±2% f.s. µS/cm ±2% f.s. mg/L (ppm) ±0.5 °C
Probe (included)	HI1285-5
Battery Type	1 x 9V alkaline
Battery Life	Approx. 450 hours of continuous use
Environment	0 to 50 °C (32 to 122 °F) 100% RH

Weight and Dimensions

Dimensions	145 x 80 x 36 mm (5.7 x 3.1 x 1.4”)
Weight	230 g (8.1 oz.)