13
instrument's power supply is disconnected before the meter is switched
off. Press the RESET button and restart the entire operation.
Power connection
Plug the 12VDC adapter (
HI710005
or
HI710006
) into the socket on
the back of the meter (#5).
Note:
Make sure your main line is protected by a fuse.
Note:
HI8521
uses a rechargeable battery to retain the pH calibra-
tion data. It lasts approximately one month when fully charged.
The battery is automatically charged any time the meter is
plugged-in (either turned on or off).
SPECIFICATIONS
HI 8521
Range
pH
0.00 to 14.00
ISE
0.0 to ±399.9mV
ORP
0 to ±1999mV
°C
0.0 to 100.0
Resolution
pH
0.01
ISE
0.1mV
ORP
1mV
°C
0.1
Accuracy
pH
±0.01
(@20°C / 68°F) ISE
±0.2mV
ORP
±0.1mV
°C
±0.4
Typical EMC
pH
±0.05
Deviation ISE/ORP
±4mV
°C
±0.1
Calibration
Automatic 2 points with auto-buffer
recogntion
Temperature
Automatic or Manual
Compensation
From 0 to 100°C (32 to 212°F)
Electrode
HI 1332B
plastic body, combination,
double junction refillable
pH electrode (
included
)
Temperature Probe
HI 7669/2W
temp. probe (
included
)
Input Impedance
10
12
ohm
Power
12VDC power
Environment
0 to 50°C (32 to 122°F); 95% RH
Dimensions
230x170x70 mm (9.1x6.7x2.7")
Shipping Weight
1.4 Kg (3.1 lb.)