2150EX AV Flow Module - Isco

2150EX Area Velocity Flow System
Section 5 Maintenance
5.1 Maintenance
Overview
This section explains the maintenance requirements of the
2150EX Area Velocity Flow Module, 2191EX Battery Module,
and the AV2150EX Sensor.
The 2150EX System is designed to perform reliably in adverse
conditions with a minimal amount of routine service requirements.
To keep your system working properly, the following
should be checked at regular intervals:
• Battery power (section 5.3)
• Desiccant (section 5.4)
• Channel conditions (section 5.5)
Maintenance intervals are affected by many variables; for
example, the Data Storage Rate will affect the battery life.
Humidity levels obviously affect the service life of the desiccant,
and the amount of debris in the stream can drastically alter the
channel conditions.
As a guide, a basic system installed in an environment with moderate
humidity levels and an AV Sensor installed in a channel
relatively free from debris and silt, the maintenance interval
should not exceed three months. A basic system is defined as:
• a 2150EX Module and AV Sensor,
• a 2191EX Battery Module (including a fresh pair of
removable LTC2191EX 8 volt lithium or SLA2191EX 8
volt lead-acid battery packs) or a 2196EX Zone 1 Battery
Module (includes two permanently installed
rechargeable batteries)
• recording readings at the default intervals of 15
minutes.
Experience is often the best tool to use when establishing
minimum maintenance intervals for your system. Until you have
gained an understanding of the 2150EX Module’s operation
under differing environmental conditions, a weekly maintenance
interval is recommended.
5-1