Gastec 51L Instructions

GASTEC
No.51L
Instructions for
Fluorochlorocarbons Detector Tube
FOR SAFE OPERATION :
Carefully read this manual and the instruction manual of your Gastec Gas Sampling Pump
and dedicated Gastec Pyrotec Pyrolyzer (No. 840).
&WARNING:
1. Use only Gastec detector tubes in a Gastec pump.
2. Do not interchange or use non-Gastec parts or components in Gastec's detector tube and
pump system.
3. Using non-Gastec parts or components in Gastec's detector tube and pump system or using
a non-Gastec detector tube with a Gastec pump or using a Gastec detector tube with a non-
Gastec pump may damage your detector tube and pump system, or may cause serious
injuries, or death to the end-user. It will also void all warranties, and guarantees regarding
performance and data accuracy.
4. Do not operate Gastec Pyrotec Pyrolyzer near flammable liquids or in explosive atmospheres.
Lt.
CAUTION : If you do not observe the following precautions, you may
suffer injuries or damage the product.
1. When breaking the tube ends, keep away from eyes.
2. Do not touch the broken glass tubes, pieces and reagent with bare hand(s).
3. The sampling time represents the time necessary to draw the air sample through the tube.
The tube must be positioned in the desired sampling area for the entire sampling time or until
the flow finish indicator indicates the end of the sampling.
6.NOTES: For maintaining performance and reliability of the test
results, observe the following.
1.
Use Gastec Gas Sampling Pump together with Gastec Detector Tubes only for the purposes
specified in the instruction manual of the detector tube.
2. Use this tube within the temperature range of 0 - 40'C (32- 104°F).
3. Use this tube within the relative humidity range of 0 - 90%.
4. This tube may be interfered with by the coexisting gases. Please refer to the table
"INTERFERENCES" below.
5. Do not subject Gastec Pyrotec Pyrolyzer to strong vibrations or shocks. Damaged filament or
circuit failure may change pyrolysis rate.
6. The shelf life and storage condition of the tube are marked on the label of the tube box.
APPLICATION OF THE TUBE :
Use this tube for detecting Fluorochlorocarbons in the air or in industrial areas and for
determining the environmental atmospheric condition.
SPECIFICATION :
(Because of Gastec's commitment to continued improvement, specifications are subject to
change without notice.)
Scrubber Agent
Measuring Range
1-20oom 20 - 54 ppm
Number ol Pump Stroke
2 1
Stroke Correction Factor 1 2.7
Sampling Time
2 minutes oer oumo stroke
Detecting Limit
0.2 ppm (n=2)
Colour Chanae
Yellow - Reddish ourole
Reaction Principle
Pyrotec : Fluorochlorocarbons - HCL
Pyrotube : HCI
+
Base - Chlorine
•• Shelf Life : Please refer to the validity date printed on the tube box.
•• Store the tubes in a dark and cool place.
CORRECTION FOR TEMPERATURE, HUMIDITY AND PRESSURE :
Temperature :
No correction is required between 0 - 40°C (32 - 104°F).
Humidity :
No correction is required between 0 - 90% R.H.
Pressure :
To correct for pressure, use the formula below
Tube Reading• (ppm)
x
1013 (hPa)
Atmospheric Pressure (hPa)
*
This value is after other correction(s), if any, are applied.
MEASUREMENT PROCEDURE:
1. Set up Gastec Pyrotec Pyrolyzer and Gastec Gas Sampling Pump.
2. For checking the leakage of the pump and Gastec Pyrotec
Pyrolyzer, insert a freshly sealed detector tube into the pump.
Follow instructions provided with the pump and Gastec Pyrotec
Pyrolyzer operation manual.
3. Turn on Gastec Pyrotec Pyrolyzer and wait for two minutes.
4. Break tips off a fresh detector tube with the tube tip breaker in the
pump.
5. Insert the tube securely into Gastec Pyrotec Pyrolyzer with the
arrow
(G►)
on the tube pointing toward Gastec Pyrotec Pyrolyzer
(fig. 1).
6. Make certain the pump handle is all the way in. Align the guide
marks on the pump body with the guide marks on the handle.
T ol l o n.M!i
U-tube
.
........
,,,..,, . .,,
deteclOf
tube
;
~ . ,
.....
~ ()n.011 swtdo
~ S- pump
fig. 1
7. Pull the handle all the way out until it locks at one pump stroke (100 ml). Wait two minutes
and confirm the completion of the sampling. Repeat the above sampling procedure one more
time.
8. For measurements higher than 20 ppm, prepare a fresh tube and perform one pump stroke.