Turning ON and Fresh Air Setup
Device operation is dialog driven from the display with the aid of the three function buttons (® Device Hardware Interfaces).
For more information, see the flow charts in Flow Charts.
Turn the device ON with the ■ button.
The device performs a self test:
During the self test, the device checks alarm LEDs, audible alarm, vibrating alarm and installed sensors.
The device displays:
| • | Startup logo |
| • | Software version, device serial number, company name, department and user names |
| • | IC / FCC ID Identifier |
| • | Sampling system safety test |
During the turn-ON sequence, if a sensor was changed since the previous device operation, the current listing of the installed sensors displays and user interaction is required.
NOTE: The user must accept the new configuration by pressing the p button. If the current sensor configuration is not accepted, the device alarms and is not usable.
| • | Combustible gas type, and installed sensor indication |
| • | Combustible gas type and sensor units (monochrome display only) |
| • | Alarm setpoints Low Alarm |
| • | Alarm setpoints High Alarm |
| • | Alarm setpoints STEL Alarm (if enabled) |
| • | Alarm setpoints TWA Alarm (if enabled) |
| • | Settings for calibration cylinder |
| • | Current date |
| • | Last calibration date (if enabled) |
| • | CAL due date. If the calibration due date is enabled, the message "CAL DUE; X DAYS" appears on the device display. |
| ○ | X = the number of days until a calibration is due, user selectable for 1 to 180 days. |
NOTE: If the number of days until calibration is due reaches 0, an alert occurs and "CAL DUE, NOW" displays.
| ○ | Press the p button to clear the alert |
| • | Sensor warm-up period |
| • | Fresh Air Setup option (if enabled). |
The Main Measure Page will appear.
The presence of a © indicator on the display means a sensor is approaching or has reached its end-of-life. See Alarms for details on the Sensor Life Alarm situation.
Refer to flowchart in Basic Operation.
Sampling System Safety Test
Upon startup, an alarm (visual, audible and vibrating) is triggered and the customer is prompted to block the pumps/sampling system of the device within 30 seconds.
When the device detects a pump flow block, it will display a PASS message. The startup sequence will resume.
If the device does not detect a pump flow block, it will display an error message.
The device will shut OFF after the customer acknowledges this message by pressing the p button.
Check your sampling system if this occurs and contact MSA as needed.
Users can check the operation of the sampling system anytime during operation by blocking the sampling system to generate a pump alarm.
WARNING!
| • | Do not use the pump, sample line, or probe unless the pump alarm activates when the flow is blocked. Lack of an alarm is an indication that a sample may not be drawn to the sensors, which could cause inaccurate readings. Failure to follow the above can result in serious personal injury or death. |
| • | Never let the end of the sampling line touch or go under any liquid surface. If liquid is drawn into the device, readings will be inaccurate and device could be damaged. We recommend the use of an MSA sample probe containing a special membrane filter, permeable to gas but impermeable to water, to prevent such an occurrence. |
Failure to follow this warning can result in serious personal injury or death.