8 9
SPECIFICATIONS
Range -2.00 to 16.00 pH
-2000 to 2000 mV
-30 to 130.0 ºC
Resolution 0.01 pH
1 mV
0.1 ºC
Accuracy ±0.02 pH
(@20°C/68°F) ±2 mV
±0.5 ºC
Typical EMC Deviation ±0.2 pH
±10 mV
±0.5 ºC
Temperature compensation Automatic or manual from -30 to 130 ºC
Temperature probe With 3-wire or 2-wire Pt100/Pt1000 sensor
(with automatic recognition and damage test)
Installation Category II
Power Supply 24V AC/DC ± 20%
Power Consumption 5 VA
Over Current Protection 400 mA 250V FAST FUSE
Infrared optical interface RS232, baud rate fixed to 2400
towards HI 504920
Data logging 6000 pH/ºC or ORP samples
Environment 0 to 50 ºC; max 85% RH non-condensing
Enclosure Fiberglass NEMA case 4X type
Dimensions 216 x 165 x 108 mm (8.5 x 6.5 x 4.25’’)
excluding mounting feet
Weight 1.5 kg (3.3 lb.)
HI 504920 HI 504910
DISPLAY DISPLAY
(ALT+) CAL DATA CAL DATA
(ALT+) SETUP SETUP
ææ
(ALT+) CAL CAL
CFM CFM
Note Throughout this manual every reference to keyboard or LCD
refers to HI 504920 keyboard and LCD.
When using the HI 504910 internal keyboard and LCD,
refer to the below table to match keys.
The two LCD’s have the same appearance; the only differ-
ence is the LOG tag blinking on the HI 504920 display to
indicate that the meter is operating in terminal mode.
