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HYCONTROL ROTARY PADDLE LEVEL SWITCH
02 YEAR WARRANTY on the motor assembly due to unique design features:-
0motor shuts off when paddle is impeded.
0triple shaft seal prevents dust ingress to housing.
0high specification motor ensures long life.

0ADJUSTABLE SENSITIVITY settings for different materials.

0REDUCED MAINTENANCE costs with ‘3 minute’ motor replacement while still on the silo.

0RUGGED CAST ALUMINIUM HOUSING for demanding environments.

0CORROSION RESISTANT stainless steel paddle and shaft assembly.

0HIGH TEMPERATURE versions available in all variety of models.

0HAZARDOUS AREA certification options available with ATEX approval

The RP series operating principle is simple. A unit is usually located through the bin wall at the top, middle or low level of a bin. During normal operation (no material present) a synchronous motor rotates the paddle at 1 RPM. When this paddle rotation is impeded by the material surrounding the paddle, the motor will stall and cause the microswitch to change state and indicate an alarm or control condition
Powders, plastics, granular products, grains, cement, sand, fillers, pigments, wood dust, particulate materials.
 
INTRODUCTION

OPERATING PRINCIPLE
With no material touching the paddle the synchronous motor is turning and the switch circuit is through terminals C and L
When material touches the paddle, the motor stops and the switch circuit is through C and H.
When the product falls away from the paddle, the motor starts turning again and the switch returns to C and L.
If the switch is to be used as a high alarm it is usual to wire the alarm circuit through terminals C and H.
If the switch is to be used as a low alarm it is usual to wire the alarm circuit through terminals C and L.
TORQUE ADJUSTING MECHANISM
The switch leaves the factory set at the weakest torque setting. The weakest setting is suitable for all materials, but is the most sensitive, so it is recommended that the torque setting be adjusted for each application.
In general terms the weakest setting should be used for the lightest powders and the strongest setting for the heaviest.
Adjustment is simply a matter of unhooking the torque adjustment spring from its current position and replacing it in its new position
 
STANDARD SPECIFICATION
Power source : A-110VAC, B-220VAC, C-240VAC, 50/60Hz
Power consumption : 3W
Contact capacity : SPDT, 5A/250VAC
Rotary speed : 1 R.P.M.
Insulation test voltage : AC 1500Vx1minute
 Torque : 0.5 ~1.0 kg-cm
Connection : 1"BSPP screw or flange
Protection : IP65 / Aluminium, Painted
Cable entry : 1/2"BSP fitted with cable gland
Specific gravity : 0.5g/cm3 (30Lb/ft3)
RP10A/B/C
SCREW MOUNT
Horizontal mounting
Temp. (-10°C ~ 70°C)
Weight: 1.2 kg
RP11A/B/C
FLANGEMOUNT
Horizontal mounting
Temp. (-10°C ~ 70°C)
Weight: 1.7 kg
RP20A/B/C
SHAFT PROTECTED
Horizontal /Vertical mounting
Temp. (-10°C ~ 70°C)
Weight: 1.2 kg
The whole section from flange to paddle are made of 304SS
Standard Length (option):
L--250mm (2.2 kg)
L--500mm (2.5 kg)
L--750mm (2.8 kg)
Special lengths are available; please contact the office.
RP30A/B/C
SHAFT LENGTH
ADJUSTABLE
Vertical mounting
Temp. (-10°C ~ 70°C)
Standard Length (option):
L-- 500mm (2.5 kg)
L-- 1000mm (2.8 kg)
L-- 1500mm (3.0 kg)
Special lengths are available; please contact the office.
RP40A/B/C
HI-TEMP TYPE
SCREW / FLANGE
MOUNT
Horizontal mounting
Temp. (Max.200°C)
Weight: 2.1 kg
RP41A/B/C
HI-TEMP SHAFT
PROTECTED
Horizontal /Vertical mounting
Temp. (Max.200°C)
The whole section from flange to paddle is made of 304SS
Standard Length (option):
L--250mm (2.6 kg)
L--500mm (2.9 kg)
L--750mm (3.2 kg)
Special lengths can be made to order; please contact the office.
RP46A/B/C
HI-TEMP SHAFT
LENGTH ADJUSTABLE

Vertical mounting
Temp. (Max.200°C)
Standard Length (option):
L-- 500mm (3 kg)
L-- 1000mm (3.3 kg)
L-- 1500mm (3.5 kg)
Special lengths can be made to order; please contact the office.
 
HAZARDOUS AREA SPECIFICATIONS
Power source : A-110VAC, B-220VAC, C-240VAC, 50/60Hz
Power consumption : 3W
Contact capacity : SPDT, 5A/250VAC
Rotary speed : 1 R.P.M.
Insulation test voltage : AC 1500Vx1minute
Torque : 0.5 ~1.0 kg-cm

Connection : 1"BSP screw or flange
Enclosure material : Aluminium Alloy
Enclosure Protection : Ex d IIB T4 / ATEX TBA**
Conduit : 1/2" or 3/4"NPT
Specific gravity : 0.5g/cm3 (30Lb/ft3)
RP70A/B/C

SCREW MOUNT
ATEX CERTIFIED **
Horizontal mounting
Temp. (-10°C ~ 70°C)
RP71A/B/C
FLANGE MOUNT
ATEX CERTIFIED**
Horizontal mounting
Temp. (-10°C ~ 70°C)
 
RP72A/B/C
SHAFT PROTECTED
ATEX CERTIFIED**
Horizontal /Vertical mounting
Temp. (-10°C ~ 70°C)
Standard Length (option):
L-- 250mm
L-- 500mm
L-- 750mm
Special lengths can be made to order; please contact the office.
RP73A/B/C
SHAFT LENGTH
ADJUSTABLE
ATEX CERTIFIED**
Vertical mounting
Temp. (-10°C ~ 70°C)
Standard Length (option):
L-- 450 ~650mm
L-- 650 ~1000mm
L-- 750 ~1200mm
Special lengths can be made to order; please contact the office.
RP74A/B/C
HI-TEMP
ATEX CERTIFIED**
Horizontal mounting
Temp. (Max.200°C)
RP75A/B/C
HI-TEMP -TEMP
SHAFT PROTECTED
ATEX CERTIFIED**

Horizontal /Vertical mounting
Temp. (Max.200°C)
Special length is made by order
RP76/A/B/C
HI-TEMP SHAFT
LENGTH ADJUSTABLE
ATEX CERTIFIED**
Vertical mounting
Temp. (Max.200°C)
Special length is made by order
( **ATEX Certification - awaiting issue )
PADDLE SPECIFICATION FOR RP 10, 20, 30, 40, 70
(A) 100x30 (WxH), The minimum mounting hole diameter size Ø90mm.
(E) 50x30 (WxH), Suitable for high S.G. raw material.

(B)

(C)

(D)

 65x80 (WxH), Directly mounted into 2" fixed hole.
65x120 (WxH), Directly mounted through a 2”BSP hole.
80x80 (WxH)
(F) This is the most versatile blade and will pass through a 1” BSP hole.
This is a popular option
because of simple retrofit to
existing tanks.
 
MINI PADDLE RP80 SPECIFICATIONS
Power source : A-110VAC, B-220VAC, C-240VAC, D-24VAC 50/60Hz
Power consumption : 1.5W
Contact capacity : AC 250V 3A
Rotary speed : 1 R.P.M.
Protection/ material : IP65 / Polycarbonate
Temp. : -20°C + 70°C
Cable length : 1 metre (Special lengths available)
Torque : 30 ~100 kg-cm
Specific gravity : 0.3g/cm3 (20Lb/ft3)
RP80A/B/C/D
CROSS-LIKE 4
BLADE PADDLE
Horizontal mounting
Weight : 0.42 kg
RP80CRH
SCIMITAR TYPE
PADDLE
Horizontal mounting
Weight : 0.42 kg
RP80CRI
RECTANGLE 10030
SS304 PADDLE
Horizontal mounting
Weight : 0.48 kg
RP84CRI
HI-TEMP TYPE
SUS304 PADDLE
Horizontal / Vertical mounting
Temp. Max:200°C
Paddle Specification for RP 80 Series
(G)Cross type paddle
material: polycarbonate
(H)Scimitar type paddle, directly inserted through 3/4" BSP holediameter fixed hole.Material is polycarbonate
( I )100x30 (WxH)
Material: 304SS
 
EXAMPLES OF MOUNTING
RP10A

Where the RP10A type paddle cannot be attached to the main shaft from inside the storage tank. A 90mm opening is required to allow the paddle to be fixed to the shaft prior to installation. Dimensions as shown below:

 0 RP80CRI

The scimitar paddle can be inserted through a 3/4"BSP inlet directly as shown on the drawing below.
 
TYPICAL PRODUCTS MEASURED
FOOD & CONSUMER PRODUCTS
Chocolate powder
Detergent
Nuts, crushed & whole, peanuts
Sugar
Salt pellets and table salt
Seeds & grains
Feed stuffs
Malts
Grains
Animal feed

SAND & MINERALS
Coal fines
Fluorspar
Iron carbide
Nickel powder
Resin coated sand
Silica, zircon & foundry sands
Sand, gravel & aggregates
Rocks
Cement
Clays
Sand / saw dust
Wood dust

 PLASTICS & RESINS
Abs
Nylon pellets
Pet pellets
Polyethylene
Polypropylene

CHEMICALS
Limestone
Calcium chloride
Calcium fluoride
Sodium bicarbonate
Soda ash
Tri-calcium phosphate
Calcium dust

FERTILISER
Ammonium nitrate
Ammonium sulphate

MISCELLANEOUS PRODUCTS
Activated carbon
Sludge pellets
Pharmaceutical tablets
 
MOUNTING OPTIONS

INSTALLATION NOTES

1. Please incline side mounted paddle switches by 15°~20°for best performance as this limits product build up on the paddle shaft and paddle itself.

2. Please select RP40 series where tank internal operating temperatures are more than 60°C.

3. RP10~RP40 can be installed in a 1" BSP socket connection but please use the scimitar type paddle so it can be installed from outside of the vessel.

4. RP30, RP46 items are flexible with adjustable shaft length. Please state length required when ordering. This length is from the mounting connection to the end of the paddle blade.(see drawings)
ANTI-SIDE LOAD PROTECTION CABLE
 
ORDER INFORMATION
* Model selection notes
1. Select Voltage 24VAC, 110VAC, 220VAC or 240VAC, 50/60 Hz.
2. Side or Top mounting.
3. Identify the bulk density of product to select correct unit.
4. If vibrating motor is installed onto the tank wall, select Hycontrol’s capacitive sensor ME40.
5. Ensure the rotary paddle size selected will enter into the flange inlet available.
 

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Hycontrol's policy is one of continuous development, consequently the right is reserved to modify any specifications without notice.