Kitagawa AP-20 User manual

1
q With a detector tube inserted and the handle drawn back, the pump cylinder is
under a high vacuum. If the handle lock is released under vacuum conditions, it
will pull back suddenly. Holding the pump by the extended shaft can lead to
injury. Always hold the pump by the cylinder, never by the shaft.
w Broken glass tube tips can fall from the tip cutter or storage area when using the
pump. To prevent glass contamination in restricted area (e.g., food processing
plants) use the optional Model B-191 Tip cutter.
e Normal use of detector tubes requires the handling of broken glass tubes.
Safety glasses and protective gloves are recommended.
r Detector tubes contain small amounts of chemical reagents, which may be
toxic. Avoid skin and eye contact with the internal chemical reagents.
■ FOREWARD
Thank you for purchasing the Model AP-20 sampling pump. The Model
AP-20 pump is designed specifically for use with Kitagawa detector
tubes. This system with the available Kitagawa detector tubes can
detect the presence of more than 300 airborne gases and vapours.
■ FOR SAFE AND CORRECT USE
★ READ CAREFULLY BOTH THIS INSTRUCTION MANUAL AND THE
INSTRUCTION SHEETS FOR THE INDIVIDUAL DETECTOR TUBES
PRIOR TO USE OF THIS PRODUCT.
★ ENSURE THAT THIS INSTRUCTION MANUAL IS STORED IN A
CONVENIENT LOCATION FOR EASY REFERENCE AT ALL TIMES.
★ IF YOU HAVE ANY QUESTIONS REGARDING THIS MANUAL,
PLEASE CONTACT YOUR LOCAL DISTRIBUTOR, DEALER OR
MANUFACTURER REPRESENTATIVE.
This instruction manual uses the following symbols to
indicate cautions and notes that promote the safe and
correct use of this product.
This “Caution” symbol indicates that failure to
observe this instruction can result in possible
personal injury or damage to property.
This “Note” symbol indicates instruction or advice
for the correct use of the product, to prevent
problems with the products or its interpretation.
Caution
Note
Caution

2
t If the reagent is completely discoloured (i.e., the detector tube is over- ranged)
after measuring a high concentration toxic gas (e.g., a process measurement),
the possibility exists for harmful gas residue inside the cylinder. This gas will
exhaust from the back of the cylinder when the handle is pulled out for the next
pump stroke. Whenever the tube has fully discoloured, purge the air inside the
cylinder by pulling and pushing the handle several times in a well-ventilated area.
q If the proper detector tube for a particular application is not chosen, correct
readings cannot be obtained. Choose detector tubes carefully using the tube
selection guide and pay strict attention to chemical names and measuring
ranges.
w When gases other than the target gas are also suspected, refer to the tube
instructions for information on interfering compounds and to the handbook for
information on other relevant detector tubes.
e A detector tube is designed for a single use; do not re-use detector tubes.
r A detector tube should be used immediately after breaking the ends. Detector
tubes exposed to the air for a long time after breaking the ends will give
erroneous readings, and may not respond to the target gas at all.
t Read the concentration immediately after completion of measurement. If not
read immediately, the stain may lengthen or fade, which can lead to erroneous
readings.
y A leaking pump will produce low readings. Always check the pump for leakage
before use in accordance with section “CHECKING PRIOR TO USE”.
u The temperature range for use of detector tubes in general is 0 to 40 degrees C.
When using detector tubes at temperatures outside of the above range, refer to
the section “MEASUREMENT AND OPTIONS UNDER SPECIAL CONDITIONS.”
i Do not drop or strike the pump. If the cylinder is dented, it will impede the
handle operation and possibly cause leakage.
o Should the pump be disassembled, hand tighten only on re-assembly. Over-
tightening can damage threads
!0 Clean the pump only with a dry paper towel. Do not use water or solvents.
!1 Do not store the pump in the areas of high temperature or high humidity. Do not
store with the handle extended, as the pump shaft is susceptible to bending
under stress.
!2 It is recommended that service repair be done only by authorized service
centres. Any service or repair must be followed by a leak check prior to field
use.
!3 Note that the AP-20 pump is a vacuum pump only, and it cannot be used for
specialized detector tubes that require sample entry by pressure (Oxygen,
Hydrogen, Propane, etc.)
!4 If using the following detector tubes, it is necessary to purchase and use the
flow control orifice option.
●Separation measurement of Acetylene・
Ethylene
●Phosphine SA type (No.121SA)
●Phosphine SB type (No.121SB)
Note

3
■ ACCESSORIES CHECK LIST Your kit should contain the follow
■ AP-20 ASPIRATING PUMP COMPONENTS
■ DETECTOR TUBE TYPICAL COMPONENTS
● ASPIRATING PUMP 1 pc. ● GREA ● HAND STRAP 1 pc.
● RUBBER
CONNECT
CONNECTOR
HOLDER
RUBBER
TUBE
CONNECTOR HEAD CASE CYLINDER
FLOW INDICATOR
2000 1800 1600 1400 1200 1000
500 300 100
SAMPLE GAS
PRE-TREAT TUBE CONNECTING TUBE
SAMPLE GAS
S
F
FLOW DIRECTION

4
wing items. Verify that the accessories package is complete when unpacking.
ASE (10g) 1 pc.
TUBE
TOR 2 pcs.
● INSTRUCTION MANUAL 1 copy
● CARRYING CASE 1 pc.
TIP CUTTERBOTTOM CASE
HAND STRAP PISTON SHAFT HANDLE
ppm
JAPAN
100m/
ppm
50 40 30 20 10
5
100m
DETECTOR TUBE
SAMPLE VOLUME
SAMPLE VOLUME
LOW DIRECTION
TO RUBBER TUBE
CONNECTOR
TO RUBBER TUBE
CONNECTOR
FLOW DIRECTION

5
Note
A leaking aspirating pump may cause lower readings or no
response at all. Always conduct the following check before use.
If the pump fails the leak test, the
following are possible causes.
A) A loose inlet connector holder.
B) Cracks and deterioration of the
rubber tube connector.
C) Deterioration of the grease.
To correct a leaking pump,
consult the "MAINTENANCE"
section.
Wait one minute. Unlock the handle
by turning it 1/4 turn (90 degrees),
and check to see if the handle
returns to the initial position. When
the lock is released under full
vacuum, the handle tends to snap
back quickly. To prevent possible
damage to the locking device allow
the handle to return slowly by
holding the cylinder and handle
securely. If the handle returns
completely to the original position,
the performance is satisfactory.
CHECKING PRIOR TO USE (Leakage Test)
1
2
3
Insert a sealed, unbroken detector
tube into the rubber tube connector.
Align the red line on the bottom case
and that of shaft, and pull the handle
to full stroke locked position.
NOT LEAKED
LEAKED
CAUTION!
Otherwise, refer to maintenance HANDLE
WILL TEND TO SNAP BACK procedure in the
pump instructions INTO THE PUMP QUICKLY.
to correct the leak.

6
● Application of new vacuum grease
MAINTENANCE
● Replacement of Rubber Tube Connector
If the rubber tube connector appears cracked or deteriorated,
remove the connector holder and replace it with new one.
HEAD CASE
GREASE
PISTON
RUBBER GASKET
CYLINDER
BOTTOM CASE HANDLE
1
2
3
RUBBER TUBE
HOLDER RUBBER TUBE
CONNECTOR ASPIRATING
PUMP
Pull the handle part way and turn the bottom case
counterclockwise to remove it.
Pull the piston out from the cylinder.
Wipe off the old grease and dirt from the piston and
inside the cylinder using a clean paper towel. Apply a
thin coat of vacuum grease to the rubber gasket of the
piston. When wiping off the old grease, be careful not
to scratch the inside walls of the cylinder. Reassemble
pump.

7
■ OPERATING PROCEDURE
Prepare Aspirating pump.
Check the pump for leaks in accordance with “CHECKING PRIOR TO
USE”. (Refer to page 5)
Cut both ends of the gas detector tube.
Insert the tip of the gas detector tube into the tip cutter and scratch the
tip of tube by rotating it for one
revolution, then pull it toward
you. (The glass tip can be
thrown away by removing the tip
cutter cap.)
Notes prior to use
q The operating procedure varies from one detector tube to
another. Before proceeding, read carefully the individual
instruction sheets provided in each box.
w Some detector tubes require temperature correction using
tables provided in the instruction sheets. Be sure that the
tube temperature has reached equilibrium with the sample
area before drawing the sample.
e When using detector tubes at pressure other than normal
atmospheric pressure, correction of the reading is
necessary. Refer to the section “MEASUREMENT AND
OPTIONS UNDER SPECIAL CONDITIONS.”To read the
tube scale directly, it is necessary that the pressure of the
sample gas is equal to that of aspirating pump.
When sampling high-pressure systems, first collect the
sample in a gas sampling bag (non-adsorbent material),
then use the pump to draw the sample from the bag.
■ MEASUREMENT
1
2

8
Connect the gas detector tube to the aspirating pump.
The sample gas must be drawn
through the gas detector tube in
the correct direction. Insert the
gas detector tube into the rubber
tube connector with the tube's
directional arrow pointing toward
the pump.
Pull the handle.
Align the red line on the bottom
case and that on the shaft and
pull the pump handle to its full
100cc locking position. If the
sample calls for a half stroke, pull
out the pump handle until 50cc
line appears, and shaft will be
locked at 50cc.
Draw the sample gas.
Draw the sample gas for the
specified time at the desired
sampling point, and confirm with
the flow indicator that the sample
is completed. The sample time
required for each detector tube is
stated clearly in the instruction
sheet.
Return the handle.
When the sample is completed, turn
the handle 1/4 turn (90 degrees)
clockwise or counterclockwise to
unlock the handle. Confirm that
the handle remains extended. (If
the handle returns part way, the
sample is incomplete, and this
will cause a low reading). Some
detector tubes require extra pump strokes (i.e., more than 100cc of air).
In this case, push back the handle and repeat the operation.
Read the concentration.
Remove the gas detector tube from the aspirating pump after the
prescribed sample volume has been drawn. Read the concentration of
gas at the maximum end of the stain against the printed scale on the
detector tube. Some detector tubes require a temperature correction
using a table or correction coefficient provided in the instructions.
3
4
5
6
7
ON SAMPLING
COMPLETION OF
SAMPLING

9
L
OO
L
L
O
L
O
Reading out point
AP-20 side
DISCOLORED LAYER
READING OUT POINT
10 20 30 40 50 60
AP-20 side
READING OUT POINT
DISCOLORED LAYER
10 20 30 40 50 60
■ HOW TO READ THE GAS CONCENTRATION
FROM GAS DETECTOR TUBE
[Direct reading type] Read the concentration of gas at the maximum end of the
stain against the printed scale on the detector tube.
● 1. In case of faint discoloration
Read the concentration of gas at the maximum end of the stain.
● 2. In case that the end of the stain is slanted.
Read out the numerical value at the middle of the oblique layer.
[Concentration chart type]
Align the zero end of the detecting reagent (inlet side of the tube) with
the O - O line on the concentration chart. Align the other end of the
same layer (exit side or pump side of the tube) with the L - L line
respectively. Read the gas concentration at the maximum end of the
stain against the scale on the card. If the end is slanted, read at the
middle point of the oblique stain.

10
■ TEMPERATURE CORRECTION PROCEDURE
The temperature of concern is that of the detector tube
(usually the temperature of the sample gas).
1.
IN CASE OF USE OF CORRECTION TABLE
［EX.1］When the tube reading is 550 ppm at 25 degrees C, the true
concentration is found by interpolating between the concentrations
listed for 20 and 30 degrees C. In this example, the corrected value
is 560 ppm.
2.
IN CASE OF USE OF CORRECTION COEFFICIENT
［
EX.2
］ When the detector tube reading is 0.4 mg/
RRat 23 degrees C,
the true concentration of water vapour is 0.36 mg/Rby the
following calculation. 0.4 mg/R×0.90≒0.36 mg/R
Temperaturecorrection(At20℃)
 Scalereading  Trueconcentrationofcarbonmonoxide(ppm)
(ppm) 0℃ 10℃ 20℃ 30℃ 40℃
 1,000 870 930 1,000 1,030 1,060
 900 780 840 900 930 960
 800 690 750 800 830 850
 700 610 660 700 720 740
 600 520 560 600 620 640
 500 430 470 500 520 540
 400 350 370 400 410 430
 300 260 280 300 310 320
 200 180 190 200 210 220
 100 90 100 100 100 110
Scalereadings℃  20℃ （25℃） 30℃
 600 600 （610） 620
 （550） （550） （560） （570）
 500 500 （510） 520
 （450） （450）（457.5）（465）
 400 400 （405） 410
(How to get readings from
Temperature Correction Table)
When the temperature is 23, the
value at the intersection of 20 and 3
is the correction Coefficient.
TemperatureCorrectionTable
 Temp.(℃) 01 23 45 67 89
 0 1.85 1.81 1.77 1.72 1.68 1.63 1.59 1.54 1.49 1.45
 10 1.40 1.36 1.31 1.27 1.23 1.19 1.15 1.11 1.07 1.03
 20 1.00 0.96 0.93 0.90 0.87 0.84 0.81 0.78 0.76 0.73
 30 0.71 0.68 0.66 0.64 0.62 0.60 0.58 0.56 0.55 0.53
 40 0.51 − − − − − − − − −
 Temp.(℃) 01 23 4
 0 1.85 1.81 1.77 1.72 1.68
 10 1.40 1.36 1.31 1.27 1.23
 20 1.00 0.96 0.93 0.90 0.87
 30 0.71 0.68 0.66 0.64 0.62

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■ MEASUREMENT & OPTIONS UNDER
A rubber extension hose (shown below) is used for remote detection of potentially
harmful gases prior to entering a confined space such as a manhole or tank. The
extension hose is placed between the detector tube and the aspirating pump to
determine the gas concentration. The rubber extension hose is available in length of 5
or 10 meters.
The allowable temperature range for detector tubes is generally, 0 to 40 degrees C.
When measuring gases at temperatures outside of 0 to 40 degrees C, collect a volume
of gas into a container, transport it to a moderate area (i.e., indoors) and allow it to
equilibrate. Then draw the sample from the container. Care must be taken to choose
a container of a material that is compatible with the target gas. (e.g., A glass syringe of 100cc
or 200cc is a suitable container).
When flue gas or other high
temperature gas is sampled, use
the Hot Air Probe.
DETECTOR TUBE
DETECTOR TUBE
RUBBER
EXTENSION HOSE
EXTENSION
SAMPLING ROD
ASPIRATING PUMP
ASPIRATING PUMP
2)High temperature gas measurement
1)Remote measurement
EXTENSION SAMPLING ROD
HOT AIR PROBE
RUBBER
EXTENSION HOSE

12
R THE SPECIAL CONDITIONS
If 100cc of gas is collected at a pressure that is two times atmospheric pressure, it is
equivalent to 200cc of gas collected at normal atmospheric pressure. When
measuring at pressures other than normal atmospheric pressure, a pressure correction
is required. A true concentration can be obtained by the following equation. However,
if the tube's concentration scale is nonlinear, a correction error is produced. Therefore
it is recommended to collect the sample in a gas sampling bag, then measure it at
normal atmospheric pressure for more accurate readings. When collecting gas in a
high pressure atmosphere, please note that the bag can be ruptured by the expansion
of the sample gas.
High concentration gas exceeding
the measuring range of the detector
tube may be sampled as follows.
Collect a volume of sample gas into
a glass syringe and dilute with
fresh air. (See photograph). The
tube reading is then multiplied by
the ratio of dilution to determine
the actual concentration.
Example: Draw 50cc of sample gas
into a 100cc syringe. Complete the
syringe draw with fresh air. Take a
reading and multiply by 2.
The following items are available as spare parts. (i.e., extra options)
●Rubber tube connector ●Grease
●Tip cutter ●Fixing screw
5)Tip cutter Model B-191
Corrected value＝Reading value on detector tube×1013 [hPa]/
Atmospheric pressure in the measuring place [hPa]
When cutting the ends of detector tubes, splintering of
glass tips can be avoided by using the Model B-191
Tip cutter. The container is transparent to let you see
when it needs to be emptied.
3)High concentration gas measurement
4)Measuring in an atmosphere under
pressure or reduced pressure
6)Other options & spare parts
GAS SYRINGE
TIP CUTTER
B-191

13
■ DISPOSAL OF DETECTOR TUBES
A detector tube contains a chemical reagent which reacts with
the target gas. The chemical reagents used vary among
different types of detector tubes, and may include substances
regulated by laws for proper disposal. When discarding used
detector tubes, dispose of them in accordance with local
disposal regulations. For further information contact your local
distributor or the manufacturer's head office or branches.

14
MEMO

KOMYO RIKAGAKU KOGYO K.K.
1-8-28 Shimonoge, Takatsu-ku, Kawasaki-City,
Kanagawa 213-0006, Japan
Tel : [phone]/Fax : [phone]
DISTRIBUTOR'S NAME：
※Specifications and external appearance are subject to change for the
reason of improvement without any prior notice.
IMEAP20/2
URL: http://www.komyokk.co.jp/english/ E-mail: [email protected]