Portable Mercury Vapor Analyzer RA-915 Light Discontinued

Since the Light 915 has been discontinued, how long is it going to be serviced?*

We will continue calibrating older units as long as they're functional. We will continue servicing older units until their replacement parts reserves are depleted.
Can older RA-915 Light units be traded in for credit when purchasing a new analyzer?

Yes. Please call us at 440-264-2500 for more details.
How is RA-915 Light different from the Light 915 model?

Coming soon
Since the RA-915 Plus has been discontinued, how long is it going to be serviced?"

We will continue calibrating older units as long as they're functional. We will continue servicing older units until their replacement parts reserves are depleted.
How is RA-915 Plus different from the RA-915M model?

The RA-915M is a further automated successor of the RA-915 Plus. The main advantage of the RA-915M is a new lightweight outer casing, built-in backlit screen display, automated calibration test cell and lamp ignition, a USB cable connection, and a higher upper detection limit (30,000 ng/m3 vs. 20,000 ng/m3).
Can older RA-915 Plus units be traded in for credit when purchasing a new analyzer?

Yes. Please call us at 440-264-2500 for more details.
What type of maintenance is recommended for these analyzers?

We recommend yearly unit calibration that includes general evaluation, internal battery replacement, calibration, and unit and hose attachment filter replacements.
Why is my relative deviation D more than 20% in Test Mode?

The analyzer may have not yet adjusted to the new ambient temperature. Put it into the On Stream mode and let it run for up for 30-40 minutes.
How often should we be replacing the external 2-inch hose filters?

We recommend replacing 2-inch dust filters every 2-3 months depending on usage and your sampling environment. Usually, gray coloring means that a lot of dust accumulated on the surface and the filter needs replaced.
My screen is frozen and no buttons respond. Is there a fix?

This issue happens rarely, but when it does, you can reset the unit by simultaneously pressing the ENT and POWER buttons.
Why did some segments of the display go out?

The battery may need to be charged. Connect your instrument to the charger and restart.
How often should we be replacing the external 2-inch hose filters?

We recommend replacing 2-inch dust filters every 2-3 months depending on usage and your sampling environment. Usually, gray coloring means that a lot of dust accumulated on the surface and the filter needs replaced.
Why is my relative deviation D more than 25% in Test Mode?

The lamp might not be turned on. Press the lamp ignition button. The test switch might be in the off position. Toggle it into the on position.
Why did some segments of the display go out?

The battery may need to be charged. Connect your instrument to the charger and restart.
Why is there an asterisk (*) displayed in the top left corner?

The lamp ignition is off. Press the lamp ignition button until the asterisk disappears (slight button toggling might help). If it doesn’t disappear, your battery may be discharged or the optical switch is in the wrong position. Make sure that the switch is in position III for ambient air testing and the battery is charged.
What type of maintenance is recommended for these analyzers?

We recommend yearly unit calibration that includes general evaluation, internal battery replacement, calibration, and unit and hose attachment filter replacements.
Why does the battery discharge indicator glow red for some time and then go out when the analyzer is switched on?

The battery needs charging. Please charge the battery.
Why did some segments of the display go out?

The battery may need to be charged. Connect your instrument to the charger and restart.
What type of maintenance is recommended for these analyzers?

We recommend yearly unit calibration that includes general evaluation, internal battery replacement, calibration, and unit and hose attachment filter replacements.
Why do I get the low radiation sign? Looks like «●».

There is no photomultiplier signal or the optical switch is in the wrong position. Check the signal-path cell compartment and remove the cell (if it is there). If the signal does not disappear, restart the analyzer.
Why is my relative deviation D more than 20% in Test Mode?

The analyzer may have not yet adjusted to the new ambient temperature. Put it into the On Stream mode and let it run for up for 30-40 minutes.
How often should we be replacing the external 2-inch hose filters?

We recommend replacing 2-inch dust filters every 2-3 months depending on usage and your sampling environment. Usually, gray coloring means that a lot of dust accumulated on the surface and the filter needs replaced.
The “Lamp is Not Ignited” message is displayed upon entering the Main Menu window. What’s wrong?

This is a lamp ignition failure in most cases, which means it needs service. Another possibility is no photomultiplier signal. Check the signal-path cell compartment and remove the cell (if it is there). If the signal does not disappear, restart the analyzer.
My screen is frozen and no buttons respond. Is there a fix?

This issue happens rarely, but when it does, you can reset the unit by simultaneously pressing the ENT and POWER buttons.

Refurbished Option Available for Purchase!

Description

Since its introduction nearly 20 years ago, the RA-915 Light was widely accepted as the most accurate wide-range mercury analyzer on the market.

NOTE: RA-915 Light model has been discontinued and succeeded by the Light 915 model. Ohio Lumex will continue servicing RA-915 Light units until further notice.

Applications

Measuring mercury vapor concentration in ambient air, as well as in the air of residential quarters and production areas
Tackling environmental problems, technological processes, and industrial sanitary and scientific research
Emergency response and mercury spill cleanup verification
Industrial hygiene

Features

Zeeman Background Correction
Second-by-second measurements
Onboard data-logging (optional)

Specifications

Built-in Battery: 6.3 V
Dimensions: 18.1” x 8.2” x 4.2” (460 x 210 x 110mm)
Weight: 17 lbs. (7.5kg)
Principle of Operation: Atomic Absorption (AA) at 253.7nm wavelength
Mercury EDL Light Source
Detection Range: 0.1 - 100 ug/m3 (ambient air)
Power: 220/110 V, 50/60 Hz; dc 10/14 V; 15W Consumption