12
Benzene Tube Mode Main Menu
The Benzene Mode main screen shows real-time readings and auxiliary information. Press the Up or Down
key to cycle through the sub-menu screens.
Flow chart for Tube (Benzene) Main Mode
Benzene Tube Measurements
1.
Ensure that the monitor is zeroed and calibrated a) in Benzene Mode, b) with 5 ppm benzene
AND c) using a benzene tube.
2.
Use Continuous Benzene Screening Mode (Tube Main Mode) to continuously monitor for
benzene without a filtering tube.
3.
If a reading above the alarm limit is found, take a single-point benzene measurement using a tube,
as follows:
a.
From Benzene Screening Mode (Tube Main Mode), press Down.
b.
When asked to start sampling, press the Right key.
c.
Enter the temperature using the Up & Down keys to increase or decrease and the Right & Left
keys to move the cursor. Move to √ and press Up. The temperature entered is that of the air to
be sampled, not the internal instrument temperature. If the tube is warmed to shorten sampling
time, enter the average of the air and tube temperatures.
Switching to
VOC Mode
Hold
Left
&
Right
Down
Right
Up
Left
Down
Up
Down
Up
Reset TWA, STEL
and Peak?
Right
Down
Up
Down
Down
Down
Down
Up
Up
Up
Last Meas.
Benzene
371 ppb
STEL
926 ppb
Up
Left
Right
Current Temp.
+
2 5 °C
×
Tube: Benzene
Start Sampling?
Please Insert Tube
Press Right Key
To Start
×
/
Up
Up
Wireless Type:
mPower BLE
Right
Current Temp.
+
2 5 °C
×
Tube: Benzene
Start Sampling?
Please Insert Tube
Press Right Key
To Start
×
/
Up
Up
Down
Up
Wait . . .
45
Up
