wtw IS 602, Инструкция по эксплуатации

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Putting into operation
Operation notes / Notes
Measurement
18
BA31110/07.00/AS/IS 602
¾
1 BA31110/07.00/AS/IS 602
¾
1
19
Mains supplied operation
For power supply use only the Friemann and Wolf line adaptor model FW6798.
Friwo FW6798/11.8369, Friwo Part. No. 1769278 Euro-Version
Input:
230 VAC (+10%/-15%)/ 50/60 Hz / 24 VA
Output: 18 VAC / 1 A
Friwo FW6798/11.8371, Friwo Part. No. 1769294 USA-Version
Input:
120 VAC (+10%/-15%)/ 50/60 Hz / 23 VA
Output: 18 VAC / 1 A
The line voltage and the operating voltage stated on the line adaptor
must correspond!
Connect line adaptor to mains and to the instrument.
Operation notes
•
Place instrument into incubator or thermostatic box.
•
Connect line adaptor to mains socket.
•
Connect line adaptor to the instrument. After a short time the Inductive Rotary
Field is automatically built up and the stirring rods start running.
•
Place the prepared sample bottles on the IS 6 / IS 12 Inductive Stirring System.
Notes
·
The interval controlled Inductive Stirring System with program controlled stirring
procedure provides an optimum exchange between air space and samples.
The automatic, cycle controlled stirring rod centering with synchronization of the
rotary fields guarantees a safe stirring operation. Magnetic stirring rods fallen out
of step are resynchronized. The sample bottles can be placed on IS 6 / IS 12
stirring systems even when they are in operation.
The instruments operate without mechanically moved parts and are
resistant to wear and maintenance-free.
··
To ensure an optimum and secure stirring function use only original WTW
stirring rods RST 600.
·
Cleaning with soft cloth and aqueous soap solution (no alcohole or acetone!).
Measurement
To measure the sample volume, use overflow measuring beakers. Select the
volume according to the measured value expected. Too large measuring ranges will
lead to inaccurate results. To estimate the measured value you can reckon with
approx. 80% of the COD value.
Sample volume (ml) Measuring range (mg/l) Factor
432 0 - 40 1
365 0 - 80 2
250 0 - 200 5
164 0 - 400 10
97 0 - 800 20
43.5 0 - 2000 50
22.7 0 - 4000 100