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The
Hycontrol range of Admittance 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.
The main advantage offered by using this admittance range
of switches is their ability to totally
ignore product build up on the sensing probe.
This unique design utilises a protective insulation electrode
between the conventional main
electrode and the grounding sleeve which enables the electronics
to distinguish between
coatings and actual product level.
This technology also provides an ideal solution for interface
detection applications such as oil
on water and liquid detection underneath a layer of foam. |
| SWITCH
FEATURES
|
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Unaffected
by material coating on the sensing probe |
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No
moving parts to wear out |
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Easy
installation through a 1” BSP process fitting |
|
High
corrosion and chemical resistance as standard options |
|
Universal
mounting for high or low level detection |
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Multiple
versions with rod and cable to simplify mounting
options |
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High
temperature versions available |
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Low
maintenance technology with no moving parts |
|
Hazardous
area certified versions ATEX approved |
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Adjustable
sensitivity for a wide range of products |
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Adjustable
time delay to stop spurious signals from surface
ripple |
|
Remote
electronics option for high vibration applications |
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Interface
level detection |
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High
and low failsafe selection options |
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|
| TYPICAL
APPLICATIONS |
|
Acid
Tanks and silos |
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Bitumen,
Tar and Asphalt |
|
Adhesives,
Polymers and Paints |
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Syrups
and pastes |
|
Powders
,flakes and granules |
|
|
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| CONSTRUCTION
& APPLICATION |
|
| Construction |
| 1. |
Main
Contact Probe: |
|
SUS304
or SUS316 Material |
2. |
Main
Insulation Probe: |
|
Insulation
of main Probe and reference |
|
current,
made of either PTFE or PFA. |
3. |
Reference
Current: |
|
Conductive
metal probe to dissipate |
|
any
possible presence of false signal. |
4. |
Insulation
Probe: |
|
To
protect contact probe and external |
|
insulation
probe, having very low |
|
current
inducing characteristics and is |
|
made
of either PTFE or PFA. |
|
5. |
Process
Connection: |
|
1"BSP
(Standard model) |
6. |
Housing: |
|
Aluminum
Alloy with paint finish |
| |
Electrical
Entry: |
|
1/2"
NPT |
8. |
Housing
seal: |
|
Buna
N ‘O’ Ring |
9. |
Time
Delay: |
|
FSH
and FSL, Time Delay Adjustable |
|
function |
10. |
Housing
Cover: |
|
Aluminum
Alloy Spray Paint |
|
| |
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| Industry
Applications |
|
Brewery
Plant |
|
Mining
Plant |
|
Chemical
Plant |
|
Paper
Manufacturing Plant |
|
Cement
Plant |
|
Medical
Plant |
|
Coal
Plant |
|
Power
Plant |
|
Food
Processing Plant |
|
Water
and Waste Water |
| |
Flour
Mill |
|
Treatment
Plant |
|
Glass
Industry |
|
Tar
Factory |
|
Paint
Plant |
|
Beverage
Plant |
|
Plastics
Plant |
|
Bitumen
Coating Plant |
|
Quarrying
Plant |
|
Dairy
Plant |
|
Aggregate
Plant |
|
Automotive
Plant |
|
| SPECIFICATION |
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| |
|
Dimension
(mm) |
|
|
|
| Model. |
MD
11 [Standard Model] |
MD
12 [Standard L Type] |
|
|
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Operating
Temp. |
-40
150°C °~ |
40°C
232°C ~ |
-40°C
550°C ~ |
Ambition
Temp. |
-40°C
65°C ~ |
-40°C
65°C ~ |
-40°C
65°C ~ |
Housing |
Aluminium
(IP65) |
Aluminium
(IP65) |
Aluminium
(IP65) |
| ProbeMaterial |
304SS
or 316SS |
304SS
or 316SS |
304SS
or 316SS |
Insulation |
PTFE
or PFA |
PTFE
or PFA |
Ceramic |
Connection |
3/4"
BSP |
1"
BSP |
1-1/4"
BSP |
Sensitivity |
0.3PF |
0.3PF |
0.3PF |
Supply
Voltage |
|
|
|
Power
Consumption |
3~5
W |
3~5
W |
3~5
W |
Contact
Rating |
5A/250VAC,
DPDT |
5A/250VAC,
DPDT |
5A/250VAC,
DPDT |
Delay
Time |
0~90
sec |
0~90
sec |
0~90
sec |
Fail
safe mode |
|
|
|
Conduit |
1/2"
NPT x2 hole |
1/2"
NPT x2 hole |
1/2"
NPT x2 hole |
Operation
Pressure |
20kg/cm2 |
20kg/cm2 |
20kg/cm2 |
Weight |
1.7kg |
3.5kg |
4.2kg |
|
| |
| SPECIFICATION |
|
| |
|
Dimension
(mm) |
|
|
|
| Model. |
|
|
|
Operating
Temp. |
-40°C
150°C,MAX 550°C ~ |
-40°C
150°C ~ |
-40°C
150°C ~ |
Ambition
Temp. |
-40°C
65°C ~ |
-40°C
65°C ~ |
-40°C
63°C ~ |
Housing |
Stainless
(IP65) |
Aluminium
(IP65)-seperation |
|
Aluminium
(IP65) |
Aluminium
(IP65) |
| ProbeMaterial |
304SS
or 316SS |
304SS
or 316SS |
304SS
or 316SS |
Insulation |
PTFE
or PFA |
PTFE
or PFA |
Ceramic |
Connection |
3/4"
BSP |
3/4"
BSP |
3/4"
BSP |
Sensitivity |
0.3PF |
0.3PF |
0.3PF |
Supply
Voltage |
|
|
|
Power
Consumption |
2.3
W |
2.3
W |
2.3
W |
Contact
Rating |
5A/250VAC,
DPDT |
5A/250VAC,
DPDT |
5A/250VAC,
DPDT |
Delay
Time |
0~90
sec |
0~90
sec |
0~90
sec |
Fail
safe mode |
|
|
|
Conduit |
1/2"
NPT x2 hole |
0 |
0 |
Operation
Pressure |
20kg/cm2 |
20kg/cm2 |
20kg/cm2 |
| Weight |
0 |
Depend
on cable length |
0 |
|
| WIRING
DIAGRAM |
|
•
Ensure the power supply is shut off
• Pull the power lines through the cable
inlet into
the housing
• Power supply voltage could be selected
at 110V
or 220V, but the live wire must be connected to
their respective terminals, 110V live wire to
110V
terminal, 220V live wire to 220V terminal. The
neutral line can be connected to 0V terminal and
the ground line is to be connected to the GND
terminal
• Relay output connection:
Relay outputs are set at SPDT or DPDT,
maximum switching current and voltage is
5A/250VAC, able to drive small loads such as:
solenoid valves, alarm sirens, etc. Bigger loads
requires larger relay to drive it. The diagrams
below and on the right are common examples of
wiring methods.
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|
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Fail
safemode :
Fail safe mode is used primarily to detect
malfunction situations. Example: Power
supply disruptions, causing the relay to lose
it's driving voltage, this type of situation is
called fail safe, meaning that in cases of
black out, there will be an alarm signal. The
fail safe mode “FSH" and "FSL"
selection is
dependent on the installation position of the
probe, the table below shows the fail safe
conditions of each mode:
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| ORDER
INFORMATION |
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| |
| |
 |
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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| HYCONTROL
LEVEL TECHNOLOGIES |
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