ASAHI CSR-3005E User manual

OIL SPILLAGE DETECTOR
APOLARM-C
Electrostatic Capacity Type
INSTRUCTION MANUAL
(Nov/2011)
ASAHI KASEI TECHNOSYSTEM CO.,LTD.
Rev. 1.0
Model CSR-3005E

1
OIL SPILLAGE DETECTOR
APOLARM-C
INSTRUCTION MANUAL
CONTENTS page
1. Introduction 2
2. Main features 2
3. General specifications 3
4. Functional theory of "Apolarm-C" 4
5. Components 6
5-1. Detector Apolarm-C 6
5-2. Transducer 8
5-3. Dry pit attachment 11
6. Wiring and operation 12
6-1. Wiring 12
6-2. Operation 13
6-3. Oil leakage detection test 13
7. Installation of Apolarm-C 14
7-1. Determination of place for installation 14
7-2. Effective installation method 14
7-3. Cautions for installation work 17
8. How to Install Explosion-Proof Wiring 19
8-1. Selection of installation site 19
8-2. Wiring of intrinsically safe circuit 20
8-3. Applicable cable 20
8-4. How to discriminate external wiring of intrinsically safe circuit 20
8-5.Interconnectionandbranching 20
8-6.Panelwiringatnon-hazardousarea 21
8-7.Otherwiring 21
8-8.Grounding 22

2
In the event of oil leaking out due to any accidental cause at an industrial lot
where a large volume of oil is handled, the most important matter is to detect
its occurrence without delay and to dispose of it quickly and adequately.
"Apolarm-C" is intended to detect oil leakage that may take place at tank or
pump yard in an area where oil is handled. This oil leakage detector has high
reliability and excels in the capability of detecting high-viscous oils and can
detect leaking oil even in such adverse surroundings where dust and
whitewash tend to be produced.
◎This is a detector produced with importance placed on pursuance for reliability.
* To improve strength against waves:
This detector is shaped unsymmetrical between upper and lower parts from the draft line
as border.
This shape works to make this device stable against the up-and-down motion of waves.
As the transducer is equipped with delay circuit, there is no fear of misinformation taking
place.
* To prevent failure of detection:
The underwater section and electrodes of floater are so structured as to be safe from
whitewash-caused short circuit.
* Even if dust or grease is caught on the device surface, there is no fear of miss signal being
sent out.
◎Able to detect sticky oils as well.
◎Permits optional selection of oil layer depth to detect.
*It is possible to detect leaked oil up to 50mm oil layer thickness by setting adequate
electrodes, (optional supply)
◎For both floater and cable, self-fire extinguishing type resin is used as material.
This resin has high oil and chemicals resistance as well.
◎Apolarm-C is a fail-safe type.
In the event power failure to transducer or cable disconnection occurs, warning signal is
given out.
◎ As this detector is made in an intrinsic safety type explosion-proofing structure,
Apolarm-C can be installed at any hazardous place.
◎It is easily observed the function in the field by means of actuating lamp on the Detector.
◎It is easily fined out the difference of trouble such as oil alarm or system alarm by the two
lamps on the Transducer.
◎The Transducer is provided with a delay timer of 1 ~1 0 (adjustable) second to prevent the
signal error caused by water wave and wind.
Introduction
Main features

3
Detectable objects : Petroleum items (crude oil, heavy oil, light oil, gasoline, lubricants, etc.),
animal & vegetable, oil, olive oil, etc., organic solvents and others.
■ Detector (Apolarm-C)
Model: CSR-3005E
Sensitivity: 3 - 5 mm
Objects to detect: Crude oil, gasoline, light oil, kerosene, heavy oil, lubricant, solvent, animal
& vegetable oils
Structure: Water-proof structure
Material: High impact resistance P. V. C. for Floater, SUS316 for Detector electrodes
Weight: About 2.6 kg
Cable: Synthetic rubber cable (flame-retardant, flexible, oil-resistant, weather-proof) 12
meters attached, 2-cores 0.75 mm each
Maximum permissible cable length: 2 Km (2 mm cable)
Ambient temperature : -20 ~ +60℃
■Transducer
Model: AS-40E (built-in delay circuit, wire disconnection and short circuit alarm)
Delay timer: Approx. 1-10 second (adjustable)
Housing: See dimension figure
Weight: About 800g
Power source: AC100/110V, 200/220V, 50/60Hz
Power consumption: Approx. 2VA
Output circuit : Contact output (type C ×2) oil alarm 1C & system alarm 1C
Contact capacity: AC250V, 4A DC30V, 4A
Ambient temperature : -10 ~ +50℃
Ambient humidity : ≦95% R. H.
Structure : Intrinsic safety type explosion-proof construction ⅡCT4
Short circuit current of input circuit: (max.) DC121. 6mA
Open circuit voltage of input circuit: (max.) DC 14.3V
Oil alarm: LED (green) light is on under normal operation
System alarm: LED (red) light is off under normal operation
General s
p
ecification

4
■Detector
(Fig.4-1)
(a) Way of detection
When all of the detecting electrodes come in contact with oil at an oil depth from 3 to 5
mm, this device functions to detect the presence of oil there.
When any of the electrodes, even only one electrode, is in contact with water, no detection
signal is sent out from the device.
The purpose of this design is to prevent the device from giving out erroneous signals
influenced by the force of waves, wind, etc. when there is no abnormal existence of oil.
(b) Theory
Detector floats on water with its electrode points in touch with water surface about 2 mm.
(in case of 3-5 mm range detection depth).
Inside the detector are set high frequency wave oscillation circuit, AC bridge circuit,
switching circuit and constant voltage power source circuit To the AC bridge circuit is
impressed high frequency (approx. 1 MHz) power, and part of the bridge is connected in
parallel to the three electrodes.
Namely, the AC bridge circuit monitors the changes in electrostatic capacity around the
electrodes.
When oil flows out on water surface, and it comes to contact the electrodes, the
electrostatic capacity around them largely varies to cause the balance in the AC bridge
circuit to be reversed.
This variation is caught and amplified at the switching circuit subsequently, it is turned
into current signal at the constant voltage power source circuit and this signal is sent to
transducer. When oil is detected at approx. 14 mA DC under ordinary conditions, this
signal becomes approx. 4 mA DC.
Fig. 4-1 Detector
∞
N
B
A
i
P'
N'
Between B &Earth Im
p
edance
High frequency wave
oscillator Detecting electrodes
Oil de
p
th
Water
Earth
Switching
circuit
Power source
Functional theor
y
of “
Ap
olarm-C”

5
■Principle and structure
(Fig.4-2)
Model CSR-3005E is an intrinsic safety type explosion-proof transducer.
Floater has three electrodes, and high frequency current provided from its detector circuit
checks the electrostatic capacity at the electrode section.
When oil flows out onto water surface, the electrodes have to contact water through the oil
layer, which causes their electrostatic capacity to vary largely.
This variation in electrostatic capacity is detected and amplified in the detector circuit
causing the transducer to work and put out contact signals.
①
②
③
④
⑩
⑨⑧⑦⑥⑤
P2 N2 E2
P1 N1 E1
B1 B2
OV C1 A1 C2 A2
P N E
100～ 110V 200～ 220V
G
①Dry pit attachment: The detector electrode will be grounded when the water level is
getting low in the pit.
②Ball float: It prevents the detector from leaning because of the weight of a cable when
water level is unstable.
③APOLARM-C:CSR-3005E
④Apolarm guide: It prevents the detector from leaning and moving because of water
current and the level is unstable.
⑤Angle iron: It holds the Apolarm guide.
⑥Junction box: Use this box for the cable connection if the distance between detector and
transducer is more than 12 meters.
⑦Extension cable
⑧Transducer:AS-40E
⑨Transducer Box: Use this box if the environmental condition is not good for the
transducer. ）
⑩Power and signal cable
※ ①,②,④,⑤,⑥,⑦,⑨and ⑩are optional accessories.
Fig4-2

6
114
55
300
Float P.V.C
WELDED
Gland packing
Lamp
Fig.5 Structure of Apolarm-C
Electrode
(SUS-316)
5-1. Detector Apolarm-C
(1) Structure of Apolarm-C
CSR-3005E
Water-weathering structure
Floater is composed of three resin moldings and their jointing faces are welded.
The section through which cable is led out is double-sealed by means of grand packing and
bonding agent.
(2) Detectable oils
As written in specifications, this detector can detect the presence of petroleum items,
animal oils, organic solvent solutions, etc.
Apolarm-C has a structure capable of detecting such high viscosity oils as C heavy oil,
minus heavy oil, grease, as well.
(a) Necessary conditions to be detected
①To be smaller than water in specific gravity.
②To be not water-soluble
(Ether, methanol, etc. cannot be detected.)
③Dielectric constant is not larger than 5.
Com
p
onents

7
Dielectric constants and specific gravity of main oils:
Table 5-1
Petroleum items
Animal, vegetable and other oils
Soybean oil
Cotton-seed oil
Caster oil
Olive oil
Linseed oil
Turpentine oil
3.2
3.1
4.8
3.1
3.4
2.2
0.92
0.92
0.96
0.9
0.93
0.87
(b) Oil layer depth range detectable by Apolarm-C
Oils with fluidity can be detected by Apolarm-C when the oil layer reaches a 3 ~ 5 mm
range thickness that is nearly constant regardless of the kind of oil.
As to high viscosity oil, its presence is detected when the respective oil layers which came
in contact with each of all the electrodes reach a 3 ~ 5 mm range thickness.
The item-wise thickness of oil layer detected is as shown in the following table 5-2.
Items Dielectric constant Specific gravity
Crude oil
Naphtha
Gasoline
Jet engine fuel
Kerosene
Xylene
Benzene
Toluene
A heavy oil
B heavy oil
C heavy oil
Paraffin oil
Styrene
Machine oil
Lubricant oil
2.2 - 2.5
2.0
2.0
1.7
2.0
2.3
2.3
2.3
2.0
2.2
2.3
2.2 - 4.7
2.4
2.1
2.3-3
0.7
0.76
0.83
0.78
0.87
0.87
0.87
0.85
0.89
0.93
0.85 or around
0.89
0.93
0.9 - 0.93

8
Table 5-2
Kind of oil
Water
temperature
(℃)
Oil
temperature
(℃)
Spec.
Gravity
Viscosity
(CP)
Detected
oil layer
(mm)
Kerosene
Turbine oil
A-Heavy oil
B-Heavy oil
C-Heavy oil
13.5
13.5
13.5
13.5
25
14.0
13.5
13.5
13.5
25
0.796
0.877
0.846
0.91
0.925
1.6
330
4.9
―
300
3.4
3.1
3.0
3.6
3.5
(c) Change of detectable oil layer thickness
Detectable oil layer thickness can be changed by changing electrode length (max. limit 50
mm). When ordering for us, please designate the oil layer thickness you wish the device
made detection of leaking oil at.
(3) Materials of Apolarm-C
(a) Floater
Floater uses impact-resistant PVC as material.
This resin is self-fire extinguishing type that has excellent chemicals resistant and
whether proofs properties.
Use of BTX group solvents will cause no specific troubles as far as it is used only a short
time (3 ～5 hrs.).
Even if the solvent contacts the floater when any accident takes place, it will not affect
the functional performance of the floater. For improving weatherproofing property, the
floater has a shade attached on.
(b) Cable
Cabtyre cable, which uses synthetic rubber as sheath material and polyethylene as
insulation respectively, is used.
5-2. Transducer
Apolarm-C is composed of detector and transducer, and is made in an intrinsic safety
explosion-proof structure.
(1) Kinds of transducer Table 5-3
Models Specifications Circuit
Fig.
External
shape Fig
AS-40E
Examination
Passage No.
C14649
Intrinsic safety explosion- proof structure,
Ex [ia]ⅡC Equipped with delay circuit,
wire disconnection alarm and short-circuit
alarm.
For installation in non- hazardous place
and inside of buildings.
Fig. 5-1 Fig. 5-2

9
(2) Restriction on wiring length
The cable that connects detector and transducer works as a kind of condenser and coil.
Electric energy may accumulate in this cable and such energy may work to impair the
intrinsic safety of the device. For this reason, the maximum wiring cable length is
restricted under the explosion-proofing principles.
Table 5-4
Fig. 5-1 AS-40E
RY1
RY2
LD2 RY1 RY2
LD1
VR
Ｐ
Ｎ
Ｅ
ZD
F
（ＡＳ－３０）
◎ Explosion-proof structure
Intrinsic safety explosion-proof structure (explosion-proof mark Ex [ia] ⅡCT4)
◎Rating
Intrinsic safety circuit
DC16mA, 12V
Short-circuit current DC12l.6mA (max)
Open-circuit voltage DC14.3V (max)
Non-intrinsic safety circuit
1. Input power source voltage
AC 100～110V±10% 50/60Hz
AC 200～220V±10% 50/60HZ
2. Contact capacity AC 250 V, 4A DC30V, 4A
3. Control contact circuit 2C
(Oil leakage, system trouble)
4. Ambient temperature and humidity for working -10 ~ +50℃≦95%RH
5. Pilot lamp Green: oil leakage
Ｒed: system trouble
Models Explosion-proofing
grade Use conditions
Wiring length for
reference; 600V CVV
2mm core (2)
AS-40E Ex [ia] ⅡCT4 Allowable inductance
L: smaller than2mH
Allowable capacitance
C : smaller than 0.5μF
For safety's sake, it is
desirable to restrict the
length within2 km.

10
◎Specifications
1. Working (current)
Oil detects: normal condition
About 10mA ～20mA Ry1 OFF
Oil leakage
About 3mA ～8mA Ry1 ON
System trouble: wire disconnection
≦2 mA Ry2 OFF
Short circuit
≧21 mA Ry2 OFF
2. Length of cable usable
2km at max with 2 mm core cable
3. Power consumption
2 VA with rated voltage
(Model CSR-3005E)
4. Delay time 1~10 sec (adjustable)
Fig. 5-2 Dimensions of Transducer
N2 P2
C1 B1 A1 C2 B2 A2 0V 110V
～
100V
220V
200V
～
E1
E2
N1 P1ENP
5
0
10
SYSTEM ALARM
OIL ALARM DeIay Time(sec)
5 8 15.2 19167213
25
14
80
110
5141615.2
14
25
80
120
4-2.5R
Outer terminal
Power source terminal
Intrinsic safety circuit side terminal holder 3P
Pilotlamp (Green) Oil ALARM
Pilotlamp (Red) System ALARM
G

11
5-3. Dry pit attachment
In case there is no water ordinarily or there is a fear of water being emptied, dry pit
attachment is used. When the water level drops, the electrode points come in contact with the
contact plate of the attachment and cease to further go down.
Therefore, the electrodes are earthed as are when floating on water.
(1) For visual figure, see Fig. 5-3.
Fig. 5-3 External figure of dry pit attachment Model TC-SE
①Set screw (4 mm)
②Pipe. 10ASUS 304
Sch #80 (JIS)
③265-1.6t SUS 304 plate
Note 1) Weight of dry pit attachment 1.5 kg
Note 2) Supporter rods should be prepared on the side of client. The inner diameter of pipe for
leg section is 10.9 mmφ. As supporter rod, pipe with an outer diameter of 10.5mmφ
or 10 mmφis recommendable.
1.6ｔ
Set screw(4mm)
92

12
6-1. Wire connection diagram
"Apolarm-C" can function in 2-combined state of 1. Detector (Model CSR-3005E) and
2.Transducer (Model AS- 40E)
In connecting Apolarm-C and transducer, do it correctly in accordance with Fig.6-1
Note: As regards intrinsic safety terminals PN between detector and transducer, connect the
white color cable attached to detector to P and the black color cable to N.
If it connected reversibly by mistake, the device gives out oil leakage detection signal
though device breakdown cannot take place because of it.
6-2. Operation
Upon finish of equipment installation and wiring, go through the following preparatory steps
for operation.
(1) Check the wiring to confirm there are no misconnections of cable.
(2) Confirm that Apolarm-C correctly floats on water surface or is correctly held on dry pit
attachment. (Confirmation of absence of oil there)
(3) Confirm that power source is in the specified state.
Fig. 6-1 Wiring
Wirin
g
and o
p
eration
Ｇ
220V 200～ 110V 100～
E N P
A2 C2 A1 C1 OV B2 B1
E1 N1 P1
E2 N2 P2
110V
100～
220V
200～
OV A2 C2 A1 C1 B2 B1
ＮＰ
P N E
APLARM-C
White
Black
(inside view)
Transducer
Oil
Leakage
Sysytem
trouble
Power
input
Ground
G
G
Model : ＣＳＲ-３００５Ｅ
Model:ＡＳ－４０Ｅ

13
(4) Operation
Table 6-1
Normal Oil detect
System trouble
(APOLARM Cable
short or open)
APOLARM-C
Model
CSR-3005E
Pilot Lamp
(Green) ON OFF OFF
Pilot Lamp
(Green) ON OFF ON
Lamp
Transducer
Model AS-40E Pilot Lamp
(Red) OFF OFF ON
Oil ALARM
Contact A1-C1 OPEN CLOSE OPEN
Oil ALARM
Contact B1-C1 CLOSE OPEN CLOSE
System ALARM
Contact A2-C2 CLOSE CLOSE OPEN
Contact Transducer
Model AS-40E
System ALARM
Contact B2-C2 OPEN OPEN CLOSE
6-3. Oil leakage detection test
Detecting sensitivity of Apolarm-C is tested along the following steps.
(1) Prepare a test-use water tank and put water in it.
Put Apolarm-C on the water surface.
In case of metallic water tank, it should be larger 400 mmφand in case of plastic water
tank, it should be larger than 350 mmφ. Earth the water in tank.
(2) Make correct wiring for Apolarm-C and its transducer. (See Fig.6-1)
(3) Hold the cable of Apolarm-C at right above the detector. (Standard length of cable for this
holding is 1 m.)
(4) Put ON the power source of transducer.
(Pilot lamp green lights)
(5) Gently send oil falling on the water little by little from a comer the tank.
When the pilot lamp of transducer goes out, stop the oil sending.
Confirm the amount of oil fed in the tank.
(6) The oil layer thickness detectable is sought by the following formula.
H: Oil layer thickness (cm)
V: Amount of oil fed in tank (cm)
A: Surface area of water in tank (cm)
a: Cross section area of Apolarm-C on its draft line level
V
H =
A - a

14
7-1. Determination of place for installation
The thickness of oil layer produced by leaked oil gets the thinner the wider the dispersed area
of the oil. Therefore, it is important how to gather the leaked oil in a limited area.
Gathering of oil in a small area makes easier the work of oil recovering, which leads to
thwarting the mishap from expanding further. This eventually helps increase the reliability
of the detector.
Users are requested to understand enough the above fact and install Apolarm-C correctly at
an adequate place.
For example, such places as listed below are recommendable as places where to install
Apolarm-C.
a) Oil pit inside of the oil bank.
b) Oil pit in pump yard.
In case no water is held in the pit, use dry pit attachment.
c) Oil-separating tank located inside of a plant
d) Oil-separating tank for gas1 station.
e) Inlet and outlet of wastewater treating plants.
f) Oil pit in piers.
g) Oil-separating tank in drainage for plants.
7-2. Effective installation method
a) An installation example inside of tank yard and pump yard.
In tank yard, there is a drain valve attached and accordingly water can be emptied even from
its oil separation pit.
For this reason, dry pit attachment has to be installed there.
①
②
③
④
⑤
⑥
⑦
⑧
①Oil tank ②Oil separation pit
③Oil bank ④Valve
⑤APOLARM-C ⑥Dry pit attachment
⑦Apolarm guide ⑧Junction box
Installation of A
p
olarm-C

15
b) An installation example in oil separation pit
①As generally the oil separation pit is filled with water.
Therefore, it is unnecessary to set dry pit attachment there.
When the oil pit is emptied, warning signal is send forth.
②If there is any obstacle in oil separation pit or if there is a fear of something getting near
the waste water inlet, set there the Apolarm guide.
c) An installation example of Apolarm guide.
Junction box
A
POLARM-C
Oil separation pit
■Oil separation pit
Dry pit attachment
A
polam guide
■Dry pit
Guide
Ball float
■In case variation of water level is large

16
d) An installation example in large capacity pit (excessively large pit).
In case of large capacities pit that usually holds water in it; prepare a detecting-use
separator as shown in the bellow figure.
The appropriate length & width measurements of separator is ordinarily 400 ~ 600 mm.
Separator
Separator
A
polarm

17
7-3. Cautions for installation work
(1) Relation between oil layer thickness detectable and out flowing amount of oil
The amount the leaked-out oil is required to reach after oil begins to leak out for the
detector to start giving out oil detection signal is indicated by the following formula:
Amount of leaked-out oil
= (oil layer thickness detectable by detector) ×(surface area of pit)
Particularly when the detector is installed in an oil-water separation tank or wastewater
pit with a large surface area, it is required to divide the tank room with oil separator, or to
take a similar measure.
Such care eventually insures better sensing effect of the detector.
(2) High viscosity oil
With its out-protruded electrodes,
Apolarm-C readily detects presence of high viscosity oil.
Even if the oil has got greasy, it can be detected if the oil gathers around the detector.
Therefore, it is unnecessary to take a specific measure to detect high viscosity oil.
(3) Freezing
Even if the inside of pit has completely got in a frozen state, this freezing does not cause
Apolarm-C to be damaged.
However, in such a state, the detector cannot sense the presence of oil until the water is
not frozen.
Therefore, the pit must be kept from freezing inside.
To mention precisely, the measure to take for prevention of freezing should differ
according to the place Apolarm is installed.
But a typical method to keep the pit safe from freezing is providing a heating source
inside of the pit. In this case, give consideration not to raise the temperature of water over
60℃.
(4) Floating matters
Apolarm-C is perfectly free from the adverse effects of dust floating on water surface,
organisms, slime, duckweed, scale, etc. contained in water.
However, a large volume of dust can hinder in-flowing oil.
Therefore, dust has to be removed from water surface periodically.
(5) Wave and flow rate of water
Apolarm-C is unsymmetrical between its upper section and lower section, which works to
quickly stabilize its posture against up-and-down motion of waves.
As long as any of the three electrodes is in touch with water, Apolarm continues to give
out normal signal.
While the probability of all of three electrodes going out of touch with water surface at the
same time is very small, the transducer is provided with a delay circuit of approximately 1
～1 0 second.
Because of these factors, users need no fear signaling errors attributable to water waves.
As to water flow rate, keep it within 0.2m/sec. on the flowing water surface.
If the flow rate is larger than this limit, the oil layer could not maintain thickness of 3～
5mm or more.
In any case, don't forget providing guide rods.

18
(6) Correlation between thickness of detected oil layer and cable load
The weight of cable is 100g/m. Floater is so adjusted as to detect a 4mm thick layer of
kerosine under a load of 1 m long cable.
Detected oil layer thickness is in proportion to the sinking depth of electrodes.
Accordingly, with increased load of cable given on floater, the detected oil layer depty
increases.
In case floater swings sideways, these swings likewise influence the oil layer depty at
which the presence of oil is detected.
Therefore, where water waves regularly cause large lateral swings of floater; some
appropriate measure to offset such influence has to be taken.
As such measure, the following two" " methods are conceivable:
1) To make smaller the head of inflowing wastewater or to scatter the in-flowing course of
the water.
2) To make smaller the waves at the location of detector by placing their wave-breaking
plate, net, chamber, etc.
(7) Noise proof structure
A high frequency (around 1 MHz) is used inside this detector, which, therefore, may issue
false signal if a transceiver or other high frequency source is nearby.
Though this new Apolarm (CSR-3005E) has enhanced its immunity against external
interference, do not use, as much as possible, such a transceiver, etc. near the Apolarm.
If it is not allowed to keep a sufficient distance from the noise source, design the
installation rack and cables of the Apolarm-C into a shielded structure.

19
Fig.8-1 below “recommended wiring” shows a general outline of Apolarm-C wiring. For details，
please see ”User’s Guide for the Installation of Explosion-proof Electrical Equipment” Here is
excerpts form the guideline which will help customer install Apolarm-C wiring.
8-1. Selection of installation site
Before wiring, customer should select an installation site for Apolarm-C. Then based on
the section 5.5 ”Type of hazardous area and its scope “ of the “Guidelines for the
Installation of Explosion-proofed Electrical Equipment”, customer should clearly know
the hazardous grade of the selected site (Ex. Class 0,Class 1,Class 2 hazardous area),
and clarify the grade of wiring work required as well (Ex. intrinsic safety wiring etc.)
(In class 0 hazardous area, only intrinsic safety-type electrical equipment with
explosion-proof structure can be installed.)
How to install Ex
p
losion-
p
roof wirin
g