Teledyne Stud Sensor 452 Manuel d'utilisateur télécharger pdf (Page 26)

Teledyne API M452 Ozone Sensor Instruction Manual, 02852, Rev. E

5-1

5 Sensor and System

Troubleshooting

This chapter gives guidelines for diagnosing system and sensor

malfunctions using the four digital Status Outputs provided by the M452.

All troubleshooting should be done after the M452 has been turned on and

allowed to warm up for at least 15 minutes.

5.1 Status LED’s

On the top of the M452 are five status LED’s.

The Status LED labeled ‘CPU STATUS’ is used to verify the status of the

CPU inside the M452. This LED should blink on and off continuously

while the sensor is on. If this LED stops blinking while power is applied

to the sensor, a CPU failure is indicated.

The other four Status LED’s on the M452 exactly mirror the four Status

Outputs described in the following sections.

1 2 ... 21 22 23 24 25 26 27 28 29 30

Pas de commentaire

Teledyne Stud Sensor 452 Manuel d'utilisateur Page 26