Specifications include, but are not limited to: A. Service shall apply to all devices whether the instrument controls, indicates or records and shall
include adjustment to obtain optimum operating condition. Where conflicts arise between
manufacturer’s specifications, local, state, and federal regulatory agencies relating to
maintenance, the more stringent requirement will apply.
1. Clean all components of all systems.
2. Check operational parameters of all systems.
3. Measure power supply to components. 4. Activate and verify circuits.
5. Verify functionality of components of all systems.
6. Exercise and scan command function.
7. Verify displays, printouts, and logs. Verify that all initiating device “addresses” are
accurately labeled on the device and correspond to all system displays.
8. Test/reset/return to normal.
9. Check for excessive electronic noise on transmission loop.
10. Reduce electronic noise.
11. Check for latest revision of ‘executive' software.
12. Check for latest revision of Programmable-Read-Only-Memory microcircuits.
13. Check error indicator incidence level channel by channel.
14. Reduce error incidence to acceptable level.
15. Replace defective light bulbs and broken glass rods.
16. Test for operation and timing of coded stations.
17. Test bells, horns, and chimes for maximum audibility. Check strobes for visibility &
operation. Replace any defective device.