LIQUID LEAK SENSOROPERATION MANUAL(Web Site Downloaded only)

For RS-1000 Series, as following models*Control Unit:
RS-1000C
RS-1000CADetection Unit:
RS-1000P
RS-1000F

RS-1000C-NC
RS-1000CA-NC
RS-1000PP
RS-1000FP*For ‘RS-1000 Series Standalone Detection Unit’, please refer a separate operation manual:
RS-1000PA-24V, RS-1000FA-24V, RS-1000PAP, RS-1000FAPUL Recognized: File No. E176923
CE Mark Compliance: EN61326

TOYOKO KAGAKU CO., LTD.
Components Business Division
370 Ichinotsubo, Nakahara-Ku,
Kawasaki City, Kanagawa Pref.
211-8502, JAPAN
Phone: (044)435-5860

Fax: (044)434-9091(Patent Registered)
MAN-RS1C-06.2012 Revised

Introduction
・We appreciate that you have chosen our Liquid Leak Sensor.
・Before you install or operate it, please read this operation manual thoroughly, and follow theinstruction in order to avoid any accidents, malfunction, defects and hazards.
・Please keep this manual with good care as long as the sensor is being operated.

Table of Contents
1. Designation of Sensors ···································································3
1.1. Control Unit ···············································································3(1) RS-1000C / RS-1000C-NC (Non-discriminative Sensing) ··················· 3(2) RS-1000CA / RS-1000CA-NC (Discriminative Multi-Sensing)·············· 3
1.2. Detection Unit ············································································ 4(1) RS-1000P / RS-1000F ······························································· 4(2) RS-1000PP / RS-1000FP ··························································· 42. Installation of Detection Unit ···························································· 42.1. RS-1000P / RS-1000F································································ 52.2. RS-1000PP / RS-1000FP···························································· 53. Wiring Instruction ··········································································· 63.1. RS-1000C ··············································································· 63.2. RS-1000CA ············································································· 64. Operation ······················································································ 75. Resetting after the Leak Detection ···················································· 86. Specification ·················································································· 96.1. Control Unit ·············································································· 96.2. Detection Unit ··········································································· 96.3. Bracket ··················································································· 97. Appearances and Dimensions ··························································10

1. Designation of Sensors
1.1. Control Unit
(1) RS-1000C/ RS-1000C-NC (Non-Discriminative Single Output)
LEAK INDICATOR LAMP

Red: Leak
Blank: Normal

Screw Holex 4 places+5V

Power +24V
Source 0V

SIG

Connecting toDetection UnitGRelay OutRS-1000C=>Normally Open
RS-1000C-NC=>Normally Closed

Not UseSET Switch

POWER Switch
Red: ONBlank: OFF

Green: SET ON
Blank: SET OFF(2) RS-1000CA / RS-1000CA-NC (Discriminative Multi-Sensing)+24V
0V
Screw Holex 4 places

Power Source(Not Used)
Relay Out x 8 poles
RS-1000C: Normally Open
RS-1000C-NC: Normally
ClosedSET
SwitchPOWER
SwitchG
SIG+5V

Connecting toDetection Unit x 8 pcs(No 1 to No8)x 8 poles

LEAK INDICATOR LAMP 8 points(No1 to No.8) Red: Leak
Off: Normal* Each INDICATOR LAMP corresponds with each Detection UnitTerminal Number respectively.

31.2. Detection Unit
(1) RS-1000P (Body Material: P.P.)
RS-1000F (Body Material: PFA)

Shielded Cable
RS-1000P: OD 2.8 mm +/- 0.3 mm
Length: 2 m
RS-1000F: O.D. 2.1mm +/- 0.2 mm
Length: 2m

Indicator Lamp
embedded inside the caseNormal：GREEN
Leak：RED

Body
Absorbent Paper
Bracket(2) RS-1000PP (Body Material: P.P.)
RS-1000FP (Body Material: PFA)

Shielded Cable
RS-1000PP: OD 2.8 mm +/- 0.3 mm
Length: 2m
RS-1000FP: OD 2.1 mm +/- 0.2 mm
Length: 2mBody

Indicator Lamp
embedded inside the caseNormal：GREEN
Leak：REDBracket4

2. Installation of Detection Unit

2.1. RS-1000P / RS-1000F(1) Place the Bracket of the Detection Unit on the surface where you want to detect theleakage, and fix it firmly.
(2) Place a piece of the Absorbent Paper onto the Bracket.
NOTE： Be aware not to use 2 or more pieces of the Paper at a time in the Bracket.
(3) To mount the body, push it into the Bracket to the bottom completely.
NOTE： Verify that the Body has fixed entirely and it does not hook up at intermediateheight in the Bracket.

Sensor Body

Absorbent PaperBracket

2.2 RS-1000PP / RS-1000FP (These models are Paperless Type)(1) Place the Bracket of the Detection Unit on the surface where you want to detect theleakage, and fix it firmly.
(2) To mount the Body, push it into the Bracket to the bottom completely.

Sensor Body

BracketNOTE： Do not use any Absorbent Paper for these Paperless Type sensors.
NOTE： Verify that the Body has fixed entirely and it does not hook up at intermediateheight in the Bracket.
WARNING: These detection units must be used with RS-1000 series control unit. Do
not connect them with the other equipments than specified in this manual.

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3. Wiring Instruction
3.1. RS-1000C/ RS-1000C-NC(1) The Detection Unit has a 2-core shielded cable, 2 meters long (except optional length).
(2) Connect a red lead to the Control Unit’s terminal +5V, a white lead to terminal SIG anda shield lead to terminal G respectively.
(3) When 2 or more Detection Units will be used, follow the same procedure to every
detection units as above. Please note that the wirings should be parallel connection.
Maximum number of the Detection Units connected to one Controller at a time is 10.
(4) Connect the power source, 24VDC, to Control Unit’s terminals +24V and 0V.
(5) Your load device may be connected to the terminal of RELAY OUT.
RedWhite
ShieldPower Source +24V
0V
RELAY OUT

+5V
SIG
G

Not used<RS-1000C>< RS-1000C-NC >Detection Unit (Parallel connection)

3.2. RS-1000CA/ RS-1000CA-NC(1) The detection Unit has a 2-core shielded cable, 2 meters long (except optional length).
(2) Connect a red lead to the control Unit’s terminal +5V, a white lead to terminal SIG anda shield lead to terminal G respectively.
(3) When 2 or more Detection Units will be used, follow the same procedure to every
Detection Unit as above. Maximum number of the Detection Units used at a time is 8.
(4) Connect the power source of 24VDC to the Control Unit’s terminals +24V andterminals 0V .
(5) Your load devices may be connected to the terminal of RELAY OUT.
Power Source0V(Not used)

RELAY OUT
No.1 to No. 8+24VRedWhiteLEAK INDICATOR
ﾗﾝﾌﾟ (1～8< RS-1000CA個)>
Shield< RS-1000CA-NC >Detection Unit 1RedWhite
ShieldDetection Unit 8

NOTE： Do not supply the power source before all the wiring has been completed. Afterwiring has completed, put the protection covers on the Control Unit’s terminals
before using the sensor.

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4. Operation
WARNING： The following procedure must be implemented after wiring has completed
and prior to actual operation in the application.
(1) After required installation and wiring have been completed, turn on the POWER switchof the Control Unit, and make sure the POWER switch lights red LED to show thepower is activated. At the same time, Indicator Lamp of Detection Unit is green.
(2) Turn on the SET Switch of the Control Unit, and make sure the SET Switch lights itsgreen LED. Now the relay output function becomes activated.

*RS-1000C: RELAY OUT is open at this condition. All RELAY OUT terminals of RS-1000CA are thesame position at the initial hooking up.
**RS-1000C-NC: RELAY OUT is closed at this condition. All RELAY OUT terminals ofRS-1000CA-NC are the same position at the initial hooking up.

Please be careful if SET Switch remains OFF all the time, the output of Control Unit
never becomes ON by any condition.
Useful SET Switch: When either Control Unit or Detection Unit is power on, you may have rushingcurrency all the time, and this will activate output ON in a moment. SET Switch can avoid thismomentary ON alarm reaching to your house system, eliminating a wrong alert.

(3) Now the set procedure has completed. Verify the following status:
1] Control Unit: LEAK INDICATOR is blank, and RELAY OUT is not activated.
The output contact status is “reverse” between the standard model of
RS-1000C/1000CA, and normally closed model of RS-1000C-NC/1000CA-NC.
2] Detection Unit: Indicator Lamp is green when there is normal condition.
*If Indicator Lamp is red, please check the absorbent paper, position of Detection Unitin the Bracket.
*If Indicator Lamp is blank, please check again the wiring and power source.
3] Leak Alarm Output: Verify the output status followed to the steps below:a) RS-1000P/ RS-1000F
Take the Detection Unit out from the Bracket. The Indicator Lamp andLEAK INDICATOR becomes red. The RELAY OUT becomes “activated.”b) RS-1000PP/ RS-1000FP
Pour a drop of water to the edge of Detecting Unit until the Indicator Lamp
becomes red. The LEAK INDICATOR is red, too. The RELAY OUT is activated.
After these verification tests are done, please set the units at the initial conditions and dry thewater remaining around the Detection Unit.
The multi-terminal Unit of RS-1000CA and RS-1000CA-NC has independent set of sensor
input and relay output by 8 pairs. When you apply some pairs of sensor and output set, youshould implement the above same test for each pair one by one.

7

NOTE: The liquid detecting device in the Detection Unit is photoelectric sensitivedevice. When the Detection Unit receives a strong light from outside of thesensor Body (larger than 1,000lxs), it may cause malfunction of detecting theleak liquid at the sensor from time to time. We recommend you to confirm thatno such a strong light emitting instrument may not be located at close position
to Detection Unit, or to put a screen avoiding the light may reach to theDetection Unit. The normal room lighting instrument may not effect theDetection Unit.

5. Resetting after the Leak Detection
WARNING： The liquid may contain hazardous acids, alkalis, or chemical substances.
The following procedure has to be dome by a well-trained person who isknowledgeable for that liquid.
NOTE： The protection gloves must be put on.
NOTE： In case of handling any chemicals that are obliged to wear the protection
goggles, masks, etc. by regulation, you must follow the regulation.
(1) Turn the SET Switch and POWER Switch off. (Maintain SET Switch has turned off,you can take the Detection Unit out of Bracket without alert output signal to yoursystem.
(2) Remove the Detection Unit and wipe off its bottom clearly(3) Remove the wetted Absorbent Paper and wipe the Bracket and surroundings.
(If the Paperless Types are used, just wipe the Bracket and surroundings.)(4) Install new Absorbent Paper and place Detection Unit properly.
(For the Paperless Types, just place Detection Unit to the Bracket.)(5) Turn the SET Switch and POWER Switch on, now the reset procedure has completed.
(6) Check the function of Leak Sensor followed by the above procedure.
NOTE： The periodical check is recommended as following your factory protocol or
regulations of maintenance plan, but more than at least annually.
WARNING： The Sensor is not designed explosion proof. Do not use in the hazardous
area. For this category of UL standard does not allow to use in hazardous
area, and UL does not evaluate for explosive circumstances.

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6. Specification
6.1. Control Unit
Model
Input Voltage
Power Consumption
Indication of LED

RS-1000C

RS-1000C-NC
RS-1000CA
RS-1000CA-NC
24V DC±10%150mA below
200mA below
Red: Leak Off: Normal
NO, SPST
NC, SPSTNO, SPST
NC, SPST
Max 1AMax 1AMax 1AMax 1A
Output, Relay Contact
DC24V
DC24V
DC24V
DC24V
(resist load)(resist load)(resist load)(resist load)
1 set
1 set
8 sets
8 setsDiscriminative Detection
NoYes
Ambient Temp.
－10～60 deg C (environment)
Material
ABS Polymer
Weight90g
300g

6.2. Detection Unit
Model
Supply Voltage
Power Consumption
Indication of LED
Connection with Control Unit
Ambient Temp.
Case
Cable**
MaterialLamp

RS-1000P

RS-1000F

RS-1000PP

RS-1000FP

5V DC +/- 5％
20mA below
Red: Leak Green: Normal
Required－10～60 deg C (environment)
P.P.
HT-PVC

PFA
FEP

P.P.
HT-PVCEPOXY(embedded)

PFA
FEP

EPOXY (embedded)

Sealed,Sealed,
Silicon Stuffed
Silicon Stuffed
55g
55g
WeightRequiredNot
Required
Absorbent Paper
BracketP/N-6417, P/N-6418, P/N-6419
P/N-6416, P/N-6420B** Out diameter of the cable is shown as below, but the slight difference may remain as its tolerance because of themanufacturing process.
HT-PVC Cable: O.D. 2.8 mm +/- 0.3 mm, Length is 2 m (at factory, other than specific request when ordered)
FEP Cable:
O.D. 2.1 mm +/- 0.2 mm, Length is 2 m (at factory, other than specific request when ordered)

Water Protect

6.3. Bracket
ModelsSensors
Material
Installation

P/N-6417

P/N-6418

P/N-6419

RS-1000P/ RS-1000F
SUS301+Ni Plated
For M3 screw holes

P/N-6416

P/N-6420B

RS-1000PP/ RS-1000FP

PVC
For M4 screw

SUS301 +Ni Plated

PVC

For M3 screw Holes

For M4 Screw Hole*For the information of dimension and outlook shape of the above products, these would be found in
the brochure of “RS-1000/2000 Series Leak Sensor.”

97. Appearances and Dimensions
7.1. Control Unit
RS-1000C/ RS-1000C-NC

RS-1000CA/ RS-1000CA-NC

7.2. Detection Unit
RS-1000P/ RS-1000F/ RS-1000PP/ RS-1000FP

7.3. Bracket
P/N-6417

P/N-6416

P/N-6418

P/N-6419

P/N-6420B

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