Teledyne 3220 - Multi-channel oxygen monitor system - Manual (Page 39)

Oxygen Monitor System 5 Failure and Error Codes
Teledyne Analytical Instruments 25
Operation
4.1 Introduction
Once the System has been Installed, check all wiring to make certain that it is correct.
Check that the POWER switch on the Control Unit is in the “OFF” position, then apply
primary power to the system. Continue start-up as follows:
1. Check that AUDIBLE ALARM switch is set to BYPASS mode on the Control Unit.
2. Set the Control Unit POWER switch to ON. The green power lamp and red bypass
lamp should be illuminated. All the green Power LEDs on the channel modules
should be illuminated.
Each channel goes thru the process of a self-diagnostics test for the following:
• Checks the power supply 5V output
• Checks the power supply +/-15V outputs
• Checks the analog outputs
• Checks that the ADC is responding
3. The Channel Modules are shipped with the ZERO and SPAN preset, and the alarm
setpoints at 50% and 80% O
2
. The Channel Module relays revert to normal state
after start-up.
4. After verifying that the Control Unit, and each Channel Module are operating
normally, allow the system to stabilize over a 24 hour period.
4.2 Control Unit Operations
4.2.1 System Power Switch and LED
The power to the entire 3220 system is controlled by the System Power Switch.
The green System Power LED indicates system power status (ON/OFF).
4.2.2 Audible Alarm Switch and Bypass LED
The Audible Alarm Switch overrides the audible alarm when in the Bypass position.
The red Bypass LED lights when the audible alarm is bypassed.