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48 PoolDirect 9in1_4i 11/2015
Countdown (Ensuring reaction periods)
Some methods require a reaction period. This reaction period is incorporated in the method
as standard with the countdown function.
It is possible to switch the countdown off for all methods:
Press [MODE] [1] [3] keys in sequence.
Confirm with [ ] key.
The display shows:
• Press [0] key to switch the countdown off.
• Press [1] key to switch the countdown on.
Confirm with [ ] key.
Notes:
1. It is possible to interrupt the working countdown by pressing the [ ] key (application e.g.
serial analysis). The “user countdown” is also available if the countdown is switched off.
2. If the countdown function is switched off, the operator is responsible for ensuring the
necessary reaction period.
Non-compliance with reaction periods leads to incorrect
test results.
Signal beep
Performing a zero or a measurement takes 8 seconds. The photometer indicates the end of
zeroing or measuring by a short beep.
Press [MODE] [1] [4] keys in sequence.
Confirm with [ ] key.
The display shows:
<Countdown>
ON: 1
OFF: 0
Mode
1 3
1
0
<Signal Beep>
ON: 1
OFF: 0
Mode
1 4