Maintenance/Repair - Dwyer Instruments IEF Series Specifications-Installation And Operating Instructions

Flow Condition Warnings:
If a reverse flow condition exists an "R" with an exclamation mark in a triangle will
appear as shown below:
If an empty pipe condition exists an "E" with an exclamation mark in a triangle will
appear as shown below:
If velocity alarm condition exists a "V" with an exclamation mark in a triangle will
appear as shown below:

MAINTENANCE/REPAIR

Upon final installation of the Series IEF, no routine maintenance is required, however
if recalibration is desired the unit must be returned to Dwyer Instruments, Inc. to be
calibrated. Contact customer service to receive a Return Goods Authorization number
before shipping you product back for calibration. The Series IEF is not field serviceable
and should be returned if repair is needed. Field repair should not be attempted and
may void the warranty.
If you find the IEF is reading incorrectly, remove the unit from the pipe and ensure the
probe is free of debris. If necessary, use a soft cloth to clean the probe.
WARRANTY/RETURN
Refer to "Terms and Conditions of Sale" in our catalog or on our website. Contact
customer service to receive a Return Goods Authorization number before shipping
your product back for repair. Be sure to include a brief description of the problem plus
any relevant application notes.
25