GASTEC 351A-30 30m Extension Hose Instruction Manual

GASTEC 351A-30 30m Extension Hose

FOR SAFE OPERATION

Read this manual, the instruction manual of your Gastec Gas sampling pump, and the instruction manual of your Gastec Gas detector tube carefully.

CAUTION| If not observed, injuries to the operator or damage to the product may result.

l When breaking the tube ends, keep away from eyes.

l Do not touch the broken glass tubes, pieces and reagent with bare hand(s).

---|---

NOTE

| For maintaining performance and reliability of the test result.

l Use only Gastec Gas Sampling Pump (GV-100 or GV-110).

l Refer to the instruction manual of your Gastec Gas Detector tube for use temperature and humidity range.

l Avoid sunlight, acids, and alkaline materials.

Specifications

MEASUREMENT PROCEDURE

(Read the instruction manual of your Gastec Gas sampling pump and the instruction manual of your Gastec Gas detector tube carefully.)

1.  Replace the rubber inlet flange clamping nut of the sampling pump by the metal clamping nut of the extension hose. The metal clamping nut should be firmly tightened to eliminate leakage caused by poor seal between the flange of the rubber inlet and the pump body.
2.  Insert the nipple of the extension hose securely into the pump inlet.
3.  Tighten the metal retaining nut firmly and fix the tubing on the pup head.
4.  After breaking off tube tips, place the tube into the rubber shroud of the extension hose. The tube must be attached in the holder so that sample is drawn into the pump in the direction of the arrow (►)printed on the tube.
5. When use of twin tube, connect rubber tube shroud No. 358 which is sold seperately.
6. When this extension hose is used, sampling time may be different from the instruction manual of detector tube. Also, correction factor may have to be applied to tube reading. (See below chart for sampling time and correction factor.) As necessary, multiply the correction factors of temperature, humidity, pump strokes, extension hose, and atomospheric pressure.(When measuring a gas listed on “APPLICATION FOR OTHER SUBSTANCES”in the instruction manual, apply the correction factor/scale after these corrections.) Refer to the instruction manual of your Gastec Gas Detector tube for temperature, humidity, and pump strokes correction.

Sampling time and correction factors for No.351A-30
(Sampling times are approximate value.) Currently only the detector tubes listed below are applicable to No. 351A-30. If you need to use other tube, please contact your Gastec representatives.

Tube No.

|

Gas or Vapour to be Measured

| Sampling time for 1 pump stroke（100mL）| Sampling time for a half pump stroke

（50mL）

|

Correction factor

---|---|---|---|---
1L| Carbon monoxide| 1.5min.| 45sec.| 1.13
1LK| Carbon monoxide| 3min.| 1.5min.| NONE
1LL| Carbon monoxide| 3min.| | 1.14
2HH| Carbon dioxide| 2min.| 1min.| 1.12
2H| Carbon dioxide| 1min.| 30sec.| 1.12
2L| Carbon dioxide| 3min.| 1.5min.| NONE
2LC| Carbon dioxide| 3min.| 1.5min.| NONE
2LL| Carbon dioxide| 2min.| | NONE
3M| Ammonia| 1.5min.| 45sec.| NONE
3L| Ammonia| 1min.| 30sec.| 1.11
3La| Ammonia| 45sec.| 30sec.| NONE
4HM| Hydrogen sulphide| 1.5min.| 45sec.| NONE
4HH| Hydrogen sulphide| 1min.| 30sec.| NONE
4M| Hydrogen sulphide| 1.5min.| 45sec.| NONE
4H| Hydrogen sulphide| 1min.| 30sec.| NONE
4L| Hydrogen sulphide| 1.5min.| 45sec.| NONE
4LL| Hydrogen sulphide| 1min.| 30sec.| NONE
4LK| Hydrogen sulphide| 1min.| 30sec.| NONE
4LB| Hydrogen sulphide| 1min.| 30sec.| NONE
4LT| Hydrogen sulphide| 1.5min.| 45sec.| NONE
5La| Sulphur dioxide| 1min.|  | NONE
5Lb| Sulphur dioxide| 1min.|  | 1.12
5LC| Sulphur dioxide| 3min.|  | NONE
6L| Water vapour| 30sec.| 30sec.| NONE
7H| Phosphine| 1min.| 30sec.| NONE
7J| Phosphine| 1min.| 30sec.| 1.29
7| Phosphine| 1.5min.|  | NONE
7LA| Phosphine| 1.5min.|  | NONE
7L| Phosphine| 1.5min.|  | NONE
9L| Nitrogen dioxide| 1min.|  | 1.60
11L| Nitrogen oxides| 2min.|  | 1.35
15L| Nitric acid| 45sec.| 30sec.| 1.33
19La| Arsine| 2min.|  | NONE
30| Hydrogen| 3min.|  | NONE
35| Sulphuric acid| 1.5min.|  | NONE
40| Mercury vapour| 2min.| 1min.| 1.20
60| Phenol| 2min.| 1min.| 1.12
70| Mercaptans| 2min.| | NONE

Tube No.

|

Gas or Vapour to be Measured

| Sampling time

for 1 pump stroke（100mL）

| Sampling time for a half pump stroke

（50mL）

|

Correction factor

---|---|---|---|---
70L| Mercaptans| 2min.| 1min.| NONE
70LN| Mercaptans| 1.5min.|  | NONE
72| Ethyl mercaptan| 2min.|  | 1.00
72LN| Ethyl mercaptan| 1.5min.|  | NONE
75N| tert-Butyl mercaptan| 1.5min.|  | NONE
75LN| tert-Butyl mercaptan| 1.5min.|  | 1.12
81L| Acetic acid| 2min.| 1min.| 1.19
91L| Formaldehyde| 2min.|  | 1.16
92M| Acetaldehyde| 1min.|  | 1.11
100A| LPG| 2min.|  | NONE
101L| Gasoline| 2min.|  | 1.25
102L| Hexane| 1.5min.|  | 1.16
103| Hydrocarbons (Lower class)| 3min.| 1.5min.| NONE
105| Hydrocarbons(Higher class)| 2min.| 1min.| NONE
106| Petroleum naphtha| 1min.| 30sec.| NONE
111| Methanol| 1min.| 30sec.| 1.40
111L| Methanol| 3min.| | 1.25
112| Ethanol| 1.5min.| 45sec.| 1.35
112L| Ethanol| 3min.|  | 1.21
117| Isoamyl alcohol| 2min.|  | 1.21
118| Cyclohexanol| 2min.|  | 1.35
120| Aromatic hydrocarbons| 1.5min.| 45sec.| 1.35
121| Benzene| 1.5min.|  | 1.22
121S| Benzene| 2min.|  | 1.53
121SL| Benzene| 2min.|  | 1.30
121L| Benzene| 3min.|  | 1.19
122| Toluene| 2min.| 1min.| 1.35
122L| Toluene| 1.5min.| | 1.22
123| Xylene| 2min.| 1min.| 1.33
123L| Xylene| 1.5min.| | 1.47
124| Styrene| 1min.| 30sec.| 1.48
124L| Styrene| 1min.| 30sec.| 1.46
131| Vinyl chloride| 2min.| 1min.| 1.17
131L| Vinyl chloride| 1.5min.| | 1.25
131La| Vinyl chloride| 2min.| 1min.| NONE
131La| 1,3-Dichloropropene| 2min.| 1min.| 1.17
131LB| Vinyl chloride| 1.5min.| | 1.29
132LL| Dichlorvos| 1.5min.| 45sec.| 1.14
134| Chloropicrin| 1.5min.|  | 1.28
134L| Chloropicrin| 2min.|  | 1.28
135| 1,1,1-Trichloroethane| 3min.| 1.5min.| NONE
136H| Methyl bromide| 2min.| 1min.| NONE
136L| Methyl bromide| 2min.| 1min.| NONE
136LA| Methyl bromide| 1.5min.| 45sec.| 1.15
136LL| Methyl bromide| 3min.| | NONE
139| 1,2-Dichloroethylene| 1min.| 30sec.| NONE
141L| Ethyl acetate| 3min.|  | NONE

141L

|

Methyl isothiocyanate

| Shelf life

before Sep.2021

| 3min.|  | 1.28
Shelf life

Sep.2021 or after

| 3min.|  | 1.36

Tube No.

|

Gas or Vapour to be Measured

| Sampling time

for 1 pump stroke（100mL）

| Sampling time for a half pump stroke

（50mL）

|

Correction factor

---|---|---|---|---

142L

|

Butyl acetate

| Shelf life

before Jul.2022

| Please contact your GASTEC representatives.
Shelf life

Jul.2022 or after

| 3min.|  | 1.16
151L| Acetone| 3min.|  | NONE
161| Ethylether| 1.5min.|  | 1.13
163| Ethylene oxide| 45sec.|  | 1.11
163L| Ethylene oxide| 3min.|  | 2.00
163LL| Ethylene oxide| 2min.|  | 1.43
165L| Ethylene glycol| 3min.|  | 1.43
166| Methyl tert-butyl ether| 3min|  | NONE
172| Ethylene| 3min.| 1.5min.| 1.28
172L| Ethylene| 2min.|  | 1.22
174| 1,3-Butadiene| 1.5min.|  | NONE
174L| 1,3-Butadiene| 3min.|  | NONE
191L| Acrylonitrile| 2min.|  | NONE
230| Methyl iodide| 1.5min.| 45sec.| 1.17
230H| Methyl iodide| 2min.| 1min.| 1.28
231| Sulphuryl fluoride| 2min.|  | NONE
232| 1,2-Dichloroethane| 3min.|  | 1.13
233| Chloropicrin| 2min.|  | 1.12
234L| Methyl isothiocyanate| 3min.|  | 1.11

References

• 株式会社ガステック｜あらゆる気体の測定に

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