Table of Contents
Advertisement
Appendix D
D-2
Power Requirements
The ADFM Hot Tap insertion transducer is designed to operate using the
standard ADFM electronics package and enclosure. The system can operate
with either 12 to 36 VDC or 110 VAC power. No special power require-
ments are necessary. Please refer to Chapter 2 in the ADFM Technical
Manual for specific power requirements of the standard, open channel
ADFM flow monitoring system.
D-3
Maintenance and Repair
The ADFM Hot Tap insertion transducer requires no routine maintenance.
Please refer to Chapter 4 of the ADFM Technical Manual for general
ADFM maintenance and repair instructions.
D-4
Installation and Setup
The major installed component of the ADFM HTI is the transducer. The
transducer consists of the sensor head and insertion shaft, mounting and
sealing assembly, end housing, and cable (see
ducer comes with a 2" female NPT threaded fitting for attachment to the
tapping valve assembly. Additional 2" NPT threaded nipples and fittings
may be required to transition from the valve assembly to the HTI fitting,
and to ensure adequate clearance between the valve and the mounting as-
sembly for the sensor head.
Installation and operation of the ADFM Hot Tap insertion transducer can be
divided into two basic functions. The two basic functions are:
1. Physical installation of the transducer
2. ADFM HTI system setup and testing
D-4.1
Physical Installation
Physical installation of the transducer consists of attaching the transducer to
the pipe tap assembly, opening the valve and inserting the transducer into
the proper position, and securing the transducer in position.
Placement of the sensor head is the key concern during physical installation
of the transducer (see
is critical to proper operation of the ADFM HTI flow monitoring system.
Proper positioning is accomplished by aligning the scribed marks on the
transducer end housing with the flow axis of the pipe. The tip of the sensor
head should protrude approximately 1/8" beyond the interior pipe wall into
the flow stream. This insures that all ceramic elements of the HTI trans-
ducer are not obstructed, nor obscured by the pipe wall.
page D -2
Figure
-24). Proper positioning of the HTI transducer
Figure
-35). The HTI trans-
MGD Technologies, Inc.
Advertisement
Table of Contents
