GF Signet 3719 pH_ORP Wet-Tap User Manual
Page 3
3
Signet 3719 pH/ORP Wet-Tap
5. Installation
5.1 Notes on Location, Orientation and Required Clearance
•
The 3719-1 is designed for use in pipes up to 4 in.
•
The 3719-2 is designed for use in pipes from 6 to 12 in.
•
Select a location that will provide suffi cient clearance to
remove and insert the electrode.
•
The 3719 can be mounted in any orientation, including
horizontal and inverted. Avoid the 12 o'clock position. In the
presence of sediment, avoid the 6 o'clock position.
•
If inverted, use caution when removing the sensor.
Residual
fl uid may be present in the retraction housing.
Keep electrode connector clean and dry at all times.
250 mm
(9.9 in.)
45 mm
(1.75 in.)
115 mm
(4.5 in.)
218 mm
(8.57 in.)
OR
89.4 mm
(3.5 in.)
Any angle OK
4. 3719 System Overview
a
b
c
d
e
d
a) 3719 pH/ORP Wet-Tap
b) Customer-supplied
Low-Profi le Clamp-on Saddle Fitting
(ASTM sizes 2½ to 12 in.)
c) DryLoc
®
pH or ORP Electrode (6 versions available; see
ordering infomation on page 8.)
("DryLoc
®
" refers to the electrode connector style)
d) 2750 or 2760 DryLoc
®
pH/ORP Preamplifi er/Sensor
electronics
e) Output signal options:
2750:
- Digital (S
3
L)
- 4 to 20 mA
2760:
- Analog mV Output- Digital (S
3
L)
All components (items a–d) are sold separately.
•
Provide 20 inches (minimum) clearance from the top of the
pipe for electrode removal..