Installation manual

SAFEPATH Manual Sheet 21 of 78
Rev. C April 1999
Message Recording
WARNING: PROVIDE ALTERNATIVE SIGNALING MEANS WHILE REPROGRAMMING MESSAGES TO ASSURE
ADEQUATE PROTECTION OF PEOPLE AND PROPERTY. FAILURE TO PROVIDE ALTERNATIVE
SIGNALING MAY CAUSE PEOPLE TO NOT BE WARNED OF AN EMERGENCY CONDITION, WHICH
COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.
WHEELOCK EXPRESSLY DISCLAIMS ALL LIABILITY FOR THE CONTENT, CLARITY AND LANGUAGES OF, AND OUTPUT
CHANNEL AND PRIORITY LEVEL ASSIGNED TO, ANY AND ALL MESSAGES. IT IS ESSENTIAL THAT YOU HAVE MESSAGE
CONTENT AND LANGUAGE, SEQUENCE, OUTPUT CHANNEL AND PRIORITY ASSIGNMENTS REVIEWED AND APPROVED
BY QUALIFIED LEGAL AND SAFETY ADVISORS, QUALIFIED REPRESENTATIVE(S) OF OWNER(S) AND USER(S), AND
AUTHORITIES HAVING JURISDICTION.
To aid qualified personnel in performing necessary operational testing procedures, a script, listing all messages programmed in the
SAFEPATH panel, must be kept with the SAFEPATH panel.
This chapter describes the message recording procedures for the SAFEPATH panel when configured with a DX-200. SAFEPATH
panels configured with a DX-100 do not have message recording capabilities. Included is information about the following
SAFEPATH panel capabilities:
•
Setting Volume Controls
•
Recording a Voice File
•
Creating a String File
•
Transferring Data
Performing the following procedures requires a knowledge of the display and keypad operation. Operation of the display and
keypad is explained in Appendix C. Appendix C must be read and understood before proceeding.
Setting Volume Controls
The DX-200’s record circuit has one microphone input volume control. The DX-200’s playback circuit has four volume controls, one
for each output channel. The locations of the five volume controls on the DX-200 within the SAFEPATH panel are shown in Figure
6.
The microphone input volume control determines the record level of messages. If the microphone input volume control is set too
high the analog-to-digital converter circuit will be overdriven and/or the input preamps will have clipped outputs. Either of these two
conditions will cause distortion. If the microphone input volume control is set too low the analog-to-digital converter circuit will be
underdriven. This will cause distortion and louder than normal background noise.
The four output channel volume controls determine the playback level of messages on each of the output channels. If the output
channel volume controls are set too high, the output channel amplifiers will have clipped outputs causing distortion. If the output
channel volume controls are set too low, the SAFEPATH panel may not detect the audio level properly. See Figure 6 for output
channel volume control locations.
Before recording messages the input volume controls and the output channel volume controls should be set according to the
procedures set forth below.
Input Volume Control Adjustment Procedure
1. Set output channel volume control to minimum.
2. Set input volume control to maximum.
3. Record a message.
4. Play message. If message sounds distorted, decrease the input volume control. Repeat from step 3.
Output Channel Volume Control Adjustment Procedure
1. Set output channel volume control to minimum.
2. Play a message. If message volume is too low, or if an output channel error is detected, increase the output volume control.
Repeat from step 2.