Hach-Lange SI792 P, SI792x P, SI792x P-FF, SI792x P-PA User Manual - Manual (Page 84)

Troubleshooting
82
10.3 Error codes
Table 23 describes the error codes.
Table 23 Error codes
Code Description Corrective action
ERR 01
pH value flashes; measured
pH value is <–2 or >16 or
measured potential is
<–1500 or >1500 mV.
Make sure that the correct
probe is connected to the
transmitter.
Make sure that the probe has
sufficient electrolyte.
Make sure that the probe is
in solution.
Replace probe and cable.
ERR 02
ORP value flashes;
measured ORP value is <–
1900 or >1900 mV
Make sure that the correct
probe is connected to the
transmitter.
Make sure that the probe is
in solution.
Replace probe and cable.
ERR 03
Temperature probe icon
flashes; open or short circuit;
temperature range exceeded
Check the temperature
sensor wiring.
Make sure that the correct
temperature sensor selection
in the configuration menu.
(NTC300 for pHD and LCP
sensors)
Measure resistance of the
temperature sensor in the
probe. For pHD and LCP
sensors, resistance between
the black and yellow wires
should be 250–350 ohms.
ERR 11
Current output icon flashes;
current is below 3.8 mA Check the loop power supply
voltage to the transmitter.
ERR 12
Current output icon flashes;
current is above 20.5 mA
Make sure of the current
output selection (
Table 7 on
page 36 ).