Primary Instrument Alarms

• How do I enable Pre-Alarm messages?

Pre-Alarm Messages in EDM900, EDM930 & EDM960 Instruments

Introduction

J.P. Instruments primary EDMs now support pilot configurable pre-alarm messages. As a specified input channel approaches an alarm limitation, an early warning message will be displayed. Pre-alarm messages appear in the same format at EDM alarm messages, except that pre-alarm messages are displayed in yellow text, while alarm messages are displayed in red text.

Pre-alarm messages are OFF by default and can be configured individually for each of the channels listed below. Pre-alarm limits can be set for each of the following channels:

High EGT
High TIT
High CHT
High OIL-TEMP
Low OIL-TEMP
High MAP
Low Fuel Tank Level

Configuring Pre-Alarm Messages

When shipped from the factory, your J.P. Instruments EDM will be set with Pre-Alarm Messages disabled.To enable Pre-Alarm Messages:

With the engine off, enter Pilot Program Mode by holding STEP and LF for 2 seconds.
Tap NEXT repeatedly until END? is displayed.
Tap the FACTORY button, or hold STEP and LF for 2 seconds.
Tap NEXT until CHANGE PRE-ALARMS is displayed
Tap the YES key.
The EDM will display ENABLE PRE-ALARM MSGS
Tap the YES key.
Next adjust each of the channels listed to the desired pre-alarm message trigger point.
Note: If your aircraft already had primary warnings specified by the manufacturer, you may not have user settings for all the channels listed above.
Tap NEXT until END? is displayed.
Tap YES to restart the EDM.