Further Basic Functions And Settings; Internal Flushing; External Flushing; Flush Process - Internal/External In Manual Mode - Heyl Testomat 808 Manual De Instrucciones

Further basic functions and settings

NOTE
32
Further basic functions and set-
tings

Internal flushing

To ensure that the analysed sample represents the current value, the
sampling line must be sufficiently flushed.
Duration of the internal flush time

The duration of the internal flush time is preset (10 s before and
after a measurement) and cannot be influenced by the operator.
The quantity of flush water for internal flushing depends on the pres-
sure:
Pressure Max. water quantity
per analysis
1 bar
2 bar
3 bar

External flushing

If a very long (approx. 9.8 – 32.8 ft (3 – 10 metres)) sampling line or a
line with a large diameter is used, install an external flush valve up-
®
stream of Testomat 808. Connect the external flush valve to the
"Relay 1" outlet.
Flush process – internal/external in manual mode
Proceed as follows to additionally flush the instrument:

At first switch the instrument into standby mode for flushing. Short
press key 3 (pause) to achieve this.

If a measurement is running, wait until the measurement has been
completed.
Internal flush process:

Short press key 2 (Flush) to open the internal flush valve.
The valve opens and the measuring chamber is flushed.
The LED above key 2 (Flush) flashes as long as the internal flush
valve is activated.

Short press key 2 (Flush) again to terminate the flush process.
80 ml
120 ml
160 ml