Hach Polymetron pH/ORP Manual Del Usuario página 8

Figure 5 Mounting options—835x series
3.1.2 8362 sensor
Two 3 m (9.84 ft) cables are supplied with the sensor: a pH sensor cable and a temperature sensor
cable. As an option, cables of 10 or 20 m (32.8 or 65.6 ft) are available.
Install the sensor as follows:
1. Use the U-bolt (item 4 in
2. Unscrew the measurement chamber.
3. Remove the cover from the pH bulb.
4. Rinse the cover with tap water (or a pH 4 buffer). Keep the cover in a safe place for later use.
5. Lightly shake the sensor down like an oral thermometer to remove the caught air bubbles.
6. Record the installation date on the label.
7. Install the measurement chamber.
8. Plumb the 1/8-inch NPT input/output connections. Connect the sample inlet to item 5 and the
sample outlet to item 9 of
9. Start the flow of sample to the sensor. Look through the chamber for bubbles, which can have an
effect on the measurement.
10. Adjust the sample flow rate to approximately 150 mL/minute.
11. To prevent back pressure, plumb the sample outlet to an open drain.
12. Connect the earth ground terminal on the sensor to earth ground to prevent electrical noise
interference.
13. Make sure that the flow chamber is never empty or damage to the sensor can occur. Make sure
the glass bulb is always in water (or a pH buffer).
3.1.3 8417 sensor
The 8417 sensor can be installed in any orientation. Install the sensor with a standard
PG13.5 threaded cap.
Make sure the glass bulb is always in water (or a pH buffer) or damage to the sensor can occur.
8 English
Figure 2 on page 6) to attach the device to a static object.
Figure 2 on page 6.
Figure 6 gives the sensor dimensions.