9
IEFB SETUP
IEFB FLOWMETER SETUP
Determining IEFB probe insertion depth for models with a display
Use the Series IEFB insertion thermal energy meter with -LCD display option or A-IEF-
DSP to calculate the probe insertion depth.
1. To measure the pipe circumference, remove any existing insulation at the location
where the meter will be installed. Wrap the tape measure around the pipe at the
selected location using the 100ths side of the tape. Record this measurement to
enter later when prompted.
2. To measure the wall thickness of the pipe, use the thickness gage UTG. Follow
the directions provided with the UTG gage and record the thickness to enter later
when prompted.
3. Follow the on-screen directions for entering the circumference and wall thickness
dimensions. See the Electronic Control Data Setup section of this manual for
more information.
Determining IEFB probe insertion depth for models without a display
For models without a display, the following formulas allow for calculating the alignment
scale value. Pipe wall thickness charts are also included on the next page.
Pipes <12 in (250 mm) diameter: 7.1625-1/2*D
Pipes 12 in (300 mm) to 36 in (914.4 mm): 7.1625-(0.1*(D-2*WT))+WT
Where D represents the pipe outer diameter and WT represents the pipe wall
thickness, both in inches.
Measurement of the circumference and wall thickness can be accomplished using
A-IEF-KIT, as described in the previous section, or similar method. Precise pipe
measurements are required for a high performance installation.
Position the alignment scale such that the alignment scale setting is lined-up with
the seam of the enclosure as shown in Figure 21. Minor scale marks are in 1/20ths.
Securely finger tighten the thumbscrews.
Precise pipe measurements are required for a high performance
installation. It is recommended to use the A-IEF-KIT which
includes a setup display A-IEF-DSP, thickness gage UTG and
measuring tape A-IEF-MSTP to obtain these measurements. When the precise pipe
measurement information is known, select High Performance Setup under the Install
Kit Menu when prompted by the display as shown below.
NOTICE
USE LID TO
ENCLOSURE
GAP AS
INDICATOR LINE
Figure 21: Alignment scale positioning