Introduction
nominally 125 volts. Output tolerance is ±10 volts from the specified 125 volts.
2.3.3 Flame Guard Circuit
A thermistor-controlled, transistorized switching circuit is employed to operate a relay in the event of a flameout condition. A panel indicator light and fuel shut-off solenoid valve are operated by the relay to alarm personnel that a flameout condition has occurred. The fuel shut-off solenoid valve stops the hydrogen flow.
2.3.4 Flame Ignition Circuit
The flame ignition circuit includes the anode-igniter electrode (in the detector cell), a transformer, and processor-controlled relay. The circuit is automatically energized when the FID cools due to lack of flame.
If automatic ignition fails five times, there will be a message that reports this, and the flame can be manually ignited by pressing simultaneously the Up and Down key.
Teledyne Analytical Instruments | 14 |
