CSM_61F-UHS_-HSL_DS_E_2_3
1
Floatless Level Switch (Ultra High-sensitivity Type)
61F-UHS/-HSL
Ideal for Detecting Ice, Pure Water, or
Humidity
• Applicable for detecting ice, pure water steam, humidity, or other
substances that conduct electricity poorly.
• Two types of model available: Ultra high-sensitivity and variable
ultra high-sensitivity.
Refer to Safety Precautions for Floatless Level
Controllers.
■Ordering Information
Note: When ordering, specify the desired operating voltage at the end of the model number.
■Ultra High-sensitivity Models
Use these models for sensing objects such as ice, high-purity distilled water, moisture, or other objects with low electrical conductivity.
Specifications
Note: 1. Use 61F-UHS for detecting water leakage with high specific resistance. Connect a sensor cable between terminals 1 and 7.
2. Two Electrodes can be connected to the 61F-HSL. Use them for an alarm, not for creating a self-holding circuit.
3. The length when using completely-insulated, 600-V, 3-conductor (0.75 mm2) cabtire cables. Usable cable lengths will become shorter as
the cable diameter or number of conductors becomes larger. For more details, refer to Safety Precautions for Floatless Level Controllers.
4. It is recommended that the cable length be kept as short as possible since the Electrode circuit current is at DC micro-current level. More-
over, the Electrodes will corrode rapidly if the current is allowed to constantly flow between the Electrodes.
Be careful with the electrode polarity and grounding when wiring.
Type Ultra high-sensitivity Variable ultra high-
sensitivity
Model Model
Ultra high-
sensitivity
61F-UHS 61F-HSL
Example: 61F-UHS [220VAC]
Desired supply voltage
Item High-sensitivity 61F-UHS Variable high-sensitivity 61F-HSL
Supply voltage 100, 200, or 220 VAC; 50/60 Hz 24, 100, 110, 200, or 220 VAC; 50/60 Hz
Operating voltage range 85% to 110% of rated voltage
Interelectrode voltage 24 VAC 13 VDC max.
Interelectrode current Approx. 1 mA AC max. Approx. 1 mA DC max.
Power consumption 3.2 VA max.
Interelectrode operate resistance 0 to approx. 1 MΩ (see note 1) 0 to approx. 5 MΩ (variable)
Interelectrode release resistance Approx. 5 M to ∞Ω Operate resistance + 2.5 MΩ max.
Cable length 5 m (see note 2) (see note 3)
Control output 0.3 A, 220 VAC (Inductive load: cosφ = 0.4)
1 A, 220 VAC (Resistive load)
2 A, 220 VAC (Inductive load: cosφ = 0.4)
5 A, 220 VAC (Resistive load)
Ambient temperature Operating:–10 to 55°C
Ambient humidity Operating:45% to 85% RH
Insulation resistance 100 MΩ max. (at 500 VDC)
Dielectric strength 2,000 VAC, 50/60 Hz for 1 min
Life expectancy Electrical: 50,000 operations min.
Mechanical: 5,000,000 operations min.
Electrical: 500,000 operations min.
Mechanical: 5,000,000 operations min.
Weight Approx. 210 g
61F-UHS/-HSL
2
Internal Circuit Diagrams
External Circuit Diagrams (Example)
61F-UHS 61F-HSL
6
S1
5
S2
1
7
8
2
4
3
E3
E1
E2
Tb
Ta
X/a
X/c
Relay
Rectification/
smoothing
circuit To each circuit
6
S1
5
S2
1
7
8
2
4
3
E3
E1
E2
Tb
Tc
Ta
X/a
X/c
Power
supply
Relay
Operation
power supply
Rectification
smoothing circuit
Level detection
circuit
Power circuit
5
S1
6
S2
7
1
8
2
4
Tb
Tc
Ta
X/c
Power
supply
Relay
Relay
3
Ground
To each circuit
Operation
power supply
Rectification
smoothing circuit
Constant voltage
circuit
Surge-absorbing
circuit
Level detection
circuit
Power circuit
61F-UHS 61F-HSL
Socket: 8PFA1 (track mounted)/
PL08 (back connecting) Socket: 8PFA (track mounted)/
PL08 (back connecting)
1
3
8
2
45
6
7
Power
source
E1E2E3
1
3
8
2
45
6
7
(+)
(-)
Power
source
61F-UHS/-HSL
3
■Connections
Automatic Water Supply Control Automatic Drainage Control
Ultra High-sensitivity
Type
Dimensions:
Page 4
Automatic Water Supply and Drainage Control
E1
E2
E3
U
U
U
Water supply
source
Stop
Star
t
MCCB
RS
M
T
Commercial Voltage
61F-UHS
(See note.)
6543
P
24 V
Power
supply
0 V
24 V
PS-3S
7128
Control
circuit
Contac-
tor
Water
tank
Motor
protection
relay
Note: Be sure to ground the common Electrode E3 (the
longest Electrode).
Connection Sockets
8PFA1 (Front-connecting)
PL08 (Read-connecting)
Connect terminal 2 to the contactor coil terminal.
Connections
U
U
U
Wastewater
tank
Reservoir
MCCB
RS
M
T
Commercial Voltage
61F-UHS
(See
note.)
6543
P
24 V
Power
supply
0 V
24 V
7128
Control
circuit
E1
E2
E3
Start
Stop
PS-3S
Contac-
tor
Motor
protection
relay
Note: Be sure to ground the common Electrode E3 (the
longest Electrode).
Connection Sockets
8PFA1 (Front-connecting)
PL08 (Read-connecting)
Connect terminal 3 to the contactor coil terminal.
Connections
E
3
Pump OFF
Pump ON
E
1
E
2
PWater supply
Indicator ON
Indicator OFF
Principles of Operation
•When the water level reaches E1, the pump stops and,
when the water level reaches E2 or below, the pump
starts.
E
3
Pump OFF
Pump ON E
1
E
2
Water drainage
P
Indicator ON
Indicator OFF
•When the water level reaches E1, the pump starts and,
when the water level reaches E2 or below, the pump
stops.
Principles of Operation
61F-UHS/-HSL
4
Dimensions
Note: All units are in millimeters unless otherwise indicated.
■Electrode Holders
Note: The PS-3SR, PS-4SR, and PS-5SR have built-in resistor of 6.8 kΩ and used for the two-wire 61F models.
82
97.5 7
91 71.272
5
24
60
3.5
61F-UHS
101
8PFA1
61F-UHS
5
72.6
91
99.3
7
80 6162
5.6
49
3.5
61F-HSL
113
8PFA
61F-HSL
PS-3S/-4S/-5S
PS-3SR/-4SR/-5SR
(see note) Mounting Holes
Mounting Screw Holes
PF2 parallel thread
(effective dia.: 58.135)
9-dia. rubber
bushing (inner)
Used with
coupling
With
Mounting
Bracket
PS-3S (approx. 150 g)
PS-3SR (approx. 155 g) PS-4S (approx. 170 g)
PS-4SR (approx. 175 g) PS-5S (approx. 185 g)
PS-5SR (approx. 190 g)
65 dia.
hole
34 dia.
PS-31
Note: Standard holder construction includes three integral
300-mm-long Electrodes. However, a model having
1,000-mm-long Electrodes is available on request.
Mounting Holes
Weight: approx. 325 g
Weight: approx. 20 g
F03-31 Dust-preventive rubber cap (optional)
Electrode
SUS304
M3
PF1/2 Parallel thread
Rubber
packing
3
29.5 dia.
11 dia.
61F-UHS/-HSL
5
BF-1
Weight: approx. 75 g
(18)
(47)
40±2.0
(48) 33 dia.
60
(72)
822
23
(20 dia.) 48
Two, 6-dia. holes
26-dia.
hole
Mounting Holes
Two, M5 × 25
mounting screws
Nuts (M6)
Terminal bolt,
SUS304 (M6)
BF-3/-3R
BF-5/-5R
Mounting Holes
BF-3(R)
Mounting Holes
11
120°
120°
Three, 26-dia. holes
Two, 6-dia. holes
64-dia. hole
Two, 6-dia. holes
R19
90 90
(90)
74
110
Spring washer
Two, M5 × 25 mounting screws
Nut
(M6)
Terminal
bolt, SUS304
(M6)
(18)
2223
(49)
(47)
40±2.0
(72)
8
20 dia.
50
50 90 9076
Two, 6-dia. hole
76
Five, 26-dia. hole R13
(90)
110 dia.
Weight
BF-3: approx. 210 g
BF-3R: approx. 215 g
BF-5(R) Weight
BF-5: approx. 360 g
BF-5R: approx. 365 g
BS-1(S)
Weight: approx. 70 g
Mounting Holes
M18 P=1.5
(fine screw thread)
Terminal bolt
SUS304 (M4) P=0.7
Width across flats: 20
Two, M4 P=0.7
Nut (iron)
M18
P=1.5
50 51
39
101
12
24
M18
P=1.5
50 51
39
101
12
Terminal bolt
SUS304 (M4) P=0.7
Width across flats: 20
Two, M4 P=0.7
24 dia.
M18 P=1.5
(fine screw thread)
BS-1
BS-1S
BS-1S1
BS-1S2
61F-UHS/-HSL
6
■Electrode Separators
■Safety Precautions
Refer to Safety Precautions for All Level Controllers.
Precautions for Correct Use
Short Wiring in Electrode Circuit
•Keep the wires connecting the Controller to Electrode Holders as
short as possible. If long leads are used, the floating capacity of the
leads, and abnormal surges or noise in the Electrode circuit can
cause malfunctions.
•The thicker the cables, the shorter the permitted wiring length. The
length of the cable connecting the Controller and Electrode is
specified in the Controller datasheet as a guideline assuming that a
600-V VCT 0.75-mm2, 3-core cabtire cable is used. Test results
indicate that the actual wiring length using VCT 3.5-mm2, 3-core
cable laid over the ground is 50% of the specified length for
general-purpose applications and 80% of the specified length for
long-distance applications. When selecting cable specifications,
remember that the wiring length is further decreased for
underground cables and larger diameter cables because of the
increased floating capacity with the ground.
BS-1T
Mounting Holes
Hastelloy
titanium
Terminal bolt
SUS304
SUS316
Titanium
Hastelloy B
Hastelloy C M4 nut
SUS304
Width between
flats: 20.5 Two, M4**
24 dia. M18 P=1.5
(fine screw thread)
*This nut is made of Fluorine Resin
**A connecting nut made of Hastelloy B, Hastelloy
C, or titanium is not supplied with two M4 screws
and thus has no holes for such screws.
Material SUS304 SUS316 Titanium HAS B HAS C
Weight Approx. 55 g Approx. 55 g Approx. 45 g Approx. 65 g Approx. 60 g
F03-14 1P for one pole F03-14 3P for three poles F03-14 5P for five poles
PH-1
(Approx. 140 g with a 1-m cord)
Cable OD: Vinyl 5.0 dia., Hypalon 6.5 dia. Cable OD: Vinyl, Hypalon 6.8 dia.
Note: Cable is supplied in lengths of 1, 5, 10, 15, 20, 30, 40,
50, 60, 70, 80, 90, or 100 meters.
19 dia.
Single-core
cable
Resin
Two, 6-dia. holes PVC resin (black)
5 dia.
PH-2
(Approx. 235 g with a 1-m cord)
Two-core
cable
26 dia. 27 dia.
6.5 dia.
28 dia.
Weight: Approx. 15 g
Three, 7 dia.
41
Weight: Approx. 30 g
20
Five, 7 dia.
46
Weight: Approx. 30 g
20
In the interest of product improvement, specifications are subject to change without notice.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Read and Understand This Catalog
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or
comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified)
from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR
FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED.
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OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS
IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS
OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT
SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's
application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the
products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product,
machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible
uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:
Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.
Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles,
safety equipment, and installations subject to separate industry or government regulations.
Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE
SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons.
It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made.
However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or
establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual
specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
PERFORMANCE DATA
Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the
result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON
Warranty and Limitations of Liability.
ERRORS AND OMISSIONS
The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,
typographical, or proofreading errors, or omissions.
2012.5
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2012 All Right Reserved.
