Hach 900 MAX Instrument Manual page 88

Section 6
Alarm Code Equipment Reason
Low Main Battery 1
Memory Battery 2
Low Slate Memory 3
Slate Memory Full 4
Modem Failure 5
Missed Sample 6
Purge Failure 7
Jammed Distributor 8
Bottle is Full 9
U-Sonic Echo Loss 10
Xducer Ringing 11
U-Sonic failure 12
RS485 Timed Out 13
Unable to Cool 14
Unable to heat 15
Low Bubbler Pres. 16
Clogged Bubbler 17
High Level 18
High Flow 19
High Flow Rate of
20
Chg.
High pH/ORP 21
High Process
22
Temperature
High Rainfall 23
High CH1 24
High CH2 25
High CH3 26
High CH4 27
Page 86
Modem
Table 15 Pager Alarm Codes
— Battery pack is less than 11.5 V
— Internal memory battery is low
— Less than 10% slate memory left
— Slate memory is used up
— Modem chip/modem board failure
— No liquid detected when sampling
Water present at sensors after
—
purge
Sensors indicate arm is not
—
moving
— Full bottle option indicator is on
— No return signal detected
The return signal is detected too
—
soon
— Ultrasonic board detects an error
— Comm. problems with RS485
Too high temperature in a
AWRS only
compartment
Too cold a temperature in
AWRS only
compartment
(not
Possible leak in bubble tank
applicable)
(not
Bubbler tube is plugged
applicable)
—
—
—
—
—
—
—
—
—
—
Alarm
High CH5
High CH6
High CH7
High
Reference
Temp.
High
Velocity
High D.O.
High D.O.
Temp.
High
Conductivity
High Cond.
Temp.
Low Level
Low Flow
Low
pH/ORP
Low
Process
Temp.
Low CH1
Low CH2
Low CH3
Low CH4
— Low CH5
— Low CH6
— Low CH7
Low
— Reference
Temp.
— Low Velocity
— Low D.O.
Low D.O.
—
Temp.
Low
—
Conductivity
Low Cond.
—
Temp.
—
Code Equipment Reason
28 — —
29 — —
30 — —
31 — —
32 — —
33 — —
34 — —
35 — —
36 — —
37 — —
38 — —
39 — —
40 — —
41 — —
42 — —
43 — —
44 — —
45 — —
46 — —
47 — —
48 — —
49 — —
50 — —
51 — —
52 — —
53 — —
8990cm.fm