Teledyne SERIES 4030, HEATED THC manual Threshold Alarm

Installation

3.3.3.5ALARM RELAYS

The nine alarm-circuit connector pins connect to the internal alarm relay contacts. Each set of three pins provides one set of Form C relay contacts. Each relay has both normally open and normally closed contact connections. The contact connections are shown in Table 3-4. They are capable of switching up to 3 amperes at 250 VAC into a resistive load. The connectors are:

Threshold Alarm 1:

Can be configured as high (actuates when concentration is above threshold), or low (actuates when concentration is below threshold).

Can be configured as failsafe or non-failsafe Configured as latching or non-latching Can be configured out (defeated).

Threshold Alarm 2:

Can be configured as high (actuates when concentration is above threshold), or low (actuates when concentration is below threshold).

System Alarm:

Actuates when power is removed from analyzer. It is triggered if 4030 fails to ignite after five times.

The System Alarm may be reset by selecting the STANDBY function in the menu to send to sleep mode, then press the ENTER or ESCAPE key to restart the analyzer. However, if the condition that caused the 4030 to fail ignition is not remedied, the 4030 will likely fail to ignite again, and the System Alarm will be re-triggered.

Further detail on flame ignition failure can be found in Chapter 4, Section 4.3.1.

Teledyne Analytical Instruments 21