Hach si792 D series, User Manual

Page: 82 / 96

Troubleshooting
80
10.3 Error codes
Table 24
describes the error codes.
Table 23 Sensocheck limits for Type A sensors
Slope Zero Response time Cal timer
Adm.
range
25–130 nA –2–2 nA
720 seconds
maximum
—
35–90 nA –0.5–0.5 nA

300 seconds

80% expired
30–35 nA –1.0–0.5 nA
300–600
seconds
80–100%
expired
90–110 nA 0.5–1.0 nA
300–600
seconds
80–100%
expired
< 30 nA < –1.0 nA > 600 seconds timer expired
> 110 nA > 1.0 nA > 600 second timer expired
Table 24 Error codes
Code Description Corrective action
ERR 01
Measured value (SAT range)
flashes; value is above or
below the range limit.
Make sure that the correct
sensor is connected to the
transmitter.
Replace sensor and cable.
ERR 02
Measured value (Conc
range) flashes; value is
above or below the range
limit.
Make sure that the correct
sensor is connected to the
transmitter.
Replace sensor and cable.