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HYCONTROL CAPACITIVE LEVEL SWITCH RANGE
Hycontrol ME capacitive level switches provide simple, accurate and reliable level control for a wide range of applications. They are suitable for use on liquids, solids, slurries, pastes, granules, powders and pellets in high temperature, high pressure and corrosive environments.
Unlike some other capacitive switches, this unit works independently of the tank walls using an integral grounding sleeve without the need for a reference probe, which enables it to be used in concrete, plastic or other non metalic tanks.
This technology also provides an ideal solution for interface detection applications such as oil on water and liquid detection underneath a layer of foam.
 
CAPACITIVE SWITCH FEATURES
• Easy installation through a 1” BSP process fitting
• High corrosion and chemical resistance as standard options
• Universal design can be used for high or low level detection
• Multiple versions with rod and cable to simplify mounting options
• High temperature versions up to 800 °C
• Low maintenance technology with no moving parts
• Hazardous area certified versions ATEX approved
• Adjustable sensitivity for a wide range of products
• Adjustable time delay to stop spurious signals from surface ripple
• Anti-static probes for plastic pellet applications with high static probability
• Remote electronics option for high vibration applications
• Interface level detection for difficult applications
 
CONSTRUCTION
1. Probe : 304SS or 316SS
2. Insulation : UPE or PTFE
3. Grounding Sleeve : 304SS or 316SS
4. Connection : 1" BSP standard
5. Housing : Aluminum IP65 epoxy coated		 6. Conduit entry : ½" BSP
7. Housing O-Ring : NBR
8. PC board : A, B, C, D Type
9. Sensitivity adjustment : 10pF, 20pF, 40pF
10. Cover : Aluminum epoxy coated
 
STANDARD GENERAL PURPOSE VERSIONS
Dimension
Model
ME10 A/B/C
[STANDARD TYPE]
ME11 A/B/C
[ STANDARD TYPE]
ME20 A/B/C
[ HI-TEMP. TYPE ]
Operating Temp.
-20°C~80°C
-20°C~80°C
-20°C~200°C
Probe Material
304SS
304SS
304SS
Insulation Material
UPE
UPE
PTFE
Connection
1"BSP
1"BSP
1"BSP
Sensitivity Range
10pF, 20pF, 40pF
10pF, 20pF, 40pF
10pF, 20pF, 40pF
Weight
Approx. 1.9kg
Approx. 1.9kg
Approx. 2.4kg
Enclosure Details
Aluminum IP65
Supply Voltage
110/220VAC ±10% or 24VDC
Delay Time
0~6 seconds
Power Consumption
2W
Contact Rating
5A/240VAC or 5A/30VDC, SPDT or NPN 100mA
 
HIGH TEMPERATURE AND CORROSION RESISTANT VERSIONS
Dimension
Model
ME28 A/B/C
[ HI-TEMP. ]
ME30 A/B/C
[CORROSION-PROOF]
ME32 A/B/C
[ CORROSION-PROOF ]
Operating Temp.
-20°C~800°C
-20°C~80°C
-20°C~200°C
Probe Material
304SS
304SS
Wetted part: PVDF coating
Insulation Material
CERAMIC
Wetted part: PVDF coating
UPE
Connection
2"x5kg/cm2 JIS Flange
1-1/2"x10kg/cm2 JIS Flange (UPE)
1-1/2"x10kg/cm2 JIS Flange (SS) with PVDF Washer (5mm)
Sensitivity Range
10pF, 20pF
10pF
10pF, 20pF
Weight
Approx. 6.5kg
Approx. 2kg
Depends on the length
Enclosure Details
Aluminum IP65
Supply Voltage
110/220VAC ±10% or 24VDC
Delay Time
0~6 seconds
Power Consumption
2W
Contact Rating
5A/240VAC or 5A/30VDC, SPDT or NPN 100mA
 
REMOTE AND CABLE VERSIONS
Dimension
Model
ME40 A/B/C
[REMOTE PROBE TYPE]
ME50 A/B/C
[ WIRE-PROBE TYPE]
ME60 A/B/C
[ PLATE TYPE ]
Operating Temp.
-20°C~100°C
-20°C~80°C
-20°C~80°C
Probe Material
304SS
304SS cable
304SS
Insulation Material
UPE
UPE
UPE
Connection
1"BSP (SS)
1"BSP (SS)
2-1/2"x5kg/cm2 JIS Flange (SS)
Sensitivity Range
10pF
10pF, 20pF, 40pF
10pF, 20pF, 40pF
Weight
Approx. 3kg
Approx. 4.1kg
Approx. 3.2kg
Enclosure Details
Aluminum IP65
Supply Voltage
110/220VAC ±10% or 24VDC
Delay Time
0~6 seconds
Power Consumption
2W
Contact Rating
5A/240VAC or 5A/30VDC, SPDT or NPN 100mA
 
INTRINSICALLY SAFE VERSIONS FOR HAZARDOUS AREAS
Dimension
Model
ME70D (with EX-75)
[STANDARD TYPE]
ME72D (with EX-75U)
[ HI-TEMP. TYPE]
ME75D (withEX-75U)
[ WIRE PROBE TYPE ]
Operating Temp.
-20°C~80°C
-20°C~200°C
-20°C~80°C
Probe Material
304SS / 316 SS
304SS / 316 SS
304SS / 316 SS cable
Insulation Material
PTFE or UPE
PTFE or UPE
PTFE or UPE
Connection
1"BSP (SS)
1"BSP (SS)
1"BSP (SS)
Sensitivity Range
10pF, 20pF, 40pF
10pF, 20pF, 40pF
10pF, 20pF, 40pF
Weight
Approx. 1.9kg
Approx. 2.4kg
Approx. 4.1kg
Enclosure Details
Aluminum IP65
Supply Voltage
16~24VDC
Enclosure Protection
ATEX EEx ia iiC (*)
Power Consumption
2W
Contact Rating
NPN 100mA
 
INTRINSICALLY SAFE VERSIONS FOR HAZARDOUS AREAS
Dimension
Model
ME76D (with EX-75)
[PLATE TYPE]
ME77D (with EX-75U)
[ ANTI-STATIC TYPE] HI-TEMP.
ME78D (withEX-75U)
[ ANTI-STATIC TYPE ]
Operating Temp.
-20°C~80°C
-20°C~200°C
-20°C~80°C
Probe Material
304SS / 316 SS
PTFE or UPE coating
PTFE or UPE coating
Insulation Material
PTFE or UPE
PTFE or UPE
PTFE or UPE
Connection
2-1/2"x5kg/cm2 JIS Flange (SS)
1"BSP (SS)
1"BSP (SS)
Sensitivity Range
10pF, 20pF, 40pF
10pF, 20pF
10pF, 20pF
Weight
Approx. 3.2kg
Approx. 3.1kg
Approx. 2kg
Enclosure Details
Aluminum IP65
Supply Voltage
16~24VDC
Enclosure Protection
ATEX EEx ia iiC (*)
Power Consumption
2W
Contact Rating
NPN 100mA
 
ANTI-STATIC AND TEFLON PROBE VERSIONS
Dimension
Model
ME80 A/B/C
[ANTI-STATIC TYPE]
ME81 A/B/C
[ ANTI-STATIC TYPE] HI-TEMP.
Operating Temp.
-20°C~80°C
-20°C~200°C
Probe Material
UPE coating
PTFE coating
Insulation Material
UPE
PTFE
Connection
1"BSP (SS)
1"BSP (SS)
Sensitivity Range
10pF, 20pF
10pF, 20pF
Weight
Approx. 2kg
Approx. 2.5kg
Enclosure Details
Aluminum IP65
Supply Voltage
110/220VAC ±10% or 24VDC
Delay Time
0-6 seconds
Power Consumption
2W
Contact Rating
5A/240VAC or 5A/30VDC, SPDT or NPN 100mA
 
HAZARDOUS AREA INTRINSICALLY SAFE VERSION
EX-75U Zener barrier provides intrinsic safety to the ME7D type level switch by limiting the current from the control module in the safe area to the level switch in the hazardous zoned area.Please contact the office for a copy of the certificates and more information if required.
1. Supply voltage : 110 / 220VAC
2. Power consumption : 2W
3. Input signal : NPN transistor
  resistance Ri= 500W
4. Output voltage : 16~24 VDC
5. Short circuit current : 25mA max.
6. Relay output : SPDT
  10A /30VDC
  10A /220VAC
7. Operating temp. : -20°C ~ 60°C
8. Weight : 0.3 kg
9. Enclosure mounting : DIN Rail


 
ADJUSTMENT

COARSE CALIBRATION

With the probe in contact with the material being detected, set the SENSITIVITY ADJ pointer to position H and then using a blade screwdriver set the COARSE adjustment until the INDICATOR lamp is on. Rotating the COARSE adjustment clockwise and counter-clockwise will turn the INDICATOR lamp on and off. Ensure the lamp is on before moving on to adjusting the sensitivity.

 000

DELAY FUNCTION SETTING

This feature is used to stop any spurious signals to the switch from surface ripple or agitation of the product. It also protects the relay from premature wear by eliminating contact chatter by adding a small time delay from when product contacts the probe .

The factory setting is zero seconds with the DELAY screw fully counter clockwise.
Turning the screw in a clockwise direction introduces a delay between the INDICATOR lamp coming on and the relay changing its state.

 

SENSITIVITY ADJUSTMENT

After setting the COARSE calibration the INDICATOR lamp will switch on when probe is touching the material and off when in free air.
Make sure the probe is in contact with the material and then turn the SENSITIVITY ADJ knob clockwise until the INDICATOR lamp turns off. Set the SENSITIVITY ADJ pointer half way between H and the point that the INDICATOR lamp switches off.

  
 
 
INSTALLATION GUIDE
     
The grounding sleeve must be mounted to protrude at least 30mm from the vessel wall. For the ME60 type to be mounted properly the vessel walls should not exceed 25mm thickness. To prevent false readings on solids applications it is best to make sure the material flows symmetrically. If the inlet is not located in the centre portion of the tank roof, check the flow pattern (a angle) of your material and place the probe in the
Appropriate location.
If the probe is mounted on the top, make sure the length of probe is enough to touch the highest level of raw material.
The ME50 type must have at least 300mm from the silo wall.
The ME60 type is usually
Located at the lower position.		 For Non-Stationary or material that will be vibrated a separate control unit such as the ME40 type is recommended. Where possible install the probe away from the inlet to reduce the risk of inflowing material damaging the probe. If the probe is near an inlet, we recommend placing a protective cover 200mm above the probe. The cover should be parallel to the probe and the same length .
     
If multiple probes are mounted
In the same vessel they must be separated by at least 300 mm to reduce probe to probe interference .		 The probe should not be mounted underneath a liquid inlet otherwise it will switch on erroneously. If the tank is equipped with an agitator, please use the time-delay function to stop spurious signals
The cable inlet should face downward to avoid rainwater ingress. Mounting the probe at a 20° incline optimizes the results and increases the switch sensitivity. Mounting the probe at top of tank will help avoid material bridges from forming and reduce false alarms.
 
ORDER INFORMATION
 

•Tolerance of the total product length is ±5mm.
•Characteristics, specifications and dimensions are subject to change without notice.
•Please contact Hycontrol if you have a special request not mentioned in the above

 
Hycontrol Level switches with this option have an additional pair of terminals provided in the switch head that simply require a push button switch to connect these two terminals together and this is usually mounted at ground level local to the silo fill point.

After pushing this button the circuit is then loaded as if a product has touched the active part of the probe and the electronics (if working correctly) will detect this change in capacitance and activate the relay to change its state. Any audio or visual alarms wired to this relay will then be activated and will continue until the ground level test button is released. If the test is successful then the operator can then proceed to fill the silo, confident that the high alarm will operate if required to do so.

Hycontrol provide a complete alarm and test panel solution for single or multipoint applications however a simple push button can easily be retrofitted to existing panel installations with little or no disruption to the plant operations providing the alarms and sirens already exist!

This ground level test facility is offered as an option on Hycontrol’s range of capacitive, admittance and vibrating level swiches.

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E-mail: sales@hycontrol.com

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