Carlo Gavazzi Inc. 的 1 Point Basic Level Controller 规格书

CARLO GAVAZZI «mus (SE ¥%
Specifications are subject to change without notice (14.12.2015) 1
Mounting Ordering no.
Supply: 24 VAC/DC
DIN-rail CLD1EA1CM24
Conductive Sensors
1-point Basic Level Controller
Type CL with Potentiometer and Time Control
• Conductive level controller
• Sensitivity adjustment 5 KΩ to 150 KΩ
• For filling or emptying applications
• Low-voltage AC electrodes
• Easy installation on DIN rails 17.5 mm
• Rated operational voltage: 24 VAC/DC
• Output 8A/250 VAC SPST relay
• LED indication for: Output ON, Power ON
Ordering KeyProduct De scrip tion
One probe level control with
built in ON or OFF time delay
for filling or emptying applica-
tions. The time delay can be
set from 1 to 30 seconds.
Type
DIN rail mounting
Inputs
Function
Adjustment
Outputs
Relay versions
Power supply
µ-Processor based level
controller for liquids with a
wide sensitivity range from
5 KΩ to 150 KΩ
.
Type Selection
Specifications
Rated operational voltage (UB)
Supply class 2
Pin A1 & A2 24 19.2 to 28.8 VAC/DC
Rated insulation voltage <2.0 kVAC (rms)
Rated impulse withstand
voltage 4 kV (1.2/50 µs) (line/neutral)
Rated operational power
AC/DC supply 5 VA / 5 W
Delay on operate (tV) < 300 mS
Outputs
Rated insulation voltage 250 VAC (rms) (cont./elec.)
Relay Rating (AgCdO) µ (micro gap)
Resistive loads AC1 8 A / 250 VAC (2500 VA)
DC1 1 A / 250 VDC (250 W)
or 10 A / 25 VDC (250 W)
Small induc. Loads AC15 0,4 A250 VAC
DC13 0,4 A / 30 VDC
Mechanical life (typical) ≥ 30 x 106 operations
@ 18’000 imp/h
Electrical life (typical) AC1 > 250’000 operations
Level probe supply Max. 5 VAC
Level probe current Max. 2 mA
Sensitivity 5 KΩ to 150 KΩ, CF* = 2.2 nF
Factory preset 150 KΩ
Dielectric voltage >2.0 KVAC (rms)
(contacts / electronics)
Rated impulse withstand volt. 4 kV (1.2/50 µS) (contacts /
electronics) (IEC 664)
Operating frequency (f) max
Relay output 0.5 HZ
Response time
OFF-ON (ton) 1 sec to 30 sec adjustable
ON-OFF (toff) 1 sec to 30 sec adjustable
Environment
Overvoltage category III (IEC 60664)
Degree of protection IP 20 (IEC 60529, 60947-1)
Pollution degree 2 (IEC 60664/60664A,
60947-1)
Temperature
Operating -20º to +50ºC (-4º to + 122º)
Storage -50º to +85ºC (-58º to +185ºF)
Housing material ABS VO, light grey
Screw type M3
Tightening tourque min/max 0.4Nm/0.8Nm
Weight
AC/DC supply 125 g
Approvals
UL cURus UL508, UL325,
CSA CSA-C22.2 No.247
CE marking Yes
CLD1EA1CM24
*CF = maximum Cable Capacitance
CARLO GAVAZZI
2 Specifications are subject to change without notice (14.12.2015)
Connection cable
2 conductor PVC cable,
normally screened. Cable
length: max. 100 m. The
resistance between the
cores and the ground must
be at least 150K. Normally,
it is re commended to use
a screened cable between
probe and controller, e.g.
where the cable is placed
in parallel to the load cables
(mains). The screen has to be
connected to Y2 (reference).
The filling or emptying pro-
cess operate around one
single electrode and a time
control circuit.
Cautions
Overrunning of tank filling
Cautions must be taken to
assure that the tank cannot
overrun. Factors that have
to be considered are the
pump performance, the rate
of discharge from the tank,
the position of the single
level electrode and the time
delay.
Prevent dry running of
pump on emptying
Care must be
taken to ensure
that the pump can-
not run dry. Simi-
lar considerations
must be given as
mentioned above.
Specifically keep-
ing the time delay
to a minimum
will minimize this
risk, but again, it
will increase the
switching rate.
Example 1
The diagram shows the level
control connected as filling
or emptying control. The
re lay react to the low alter-
nating current created when
the electrodes are in contact
with the liquid.
The reference (Ref) must be
connected to the container
or if the container consists
of a non-conductive mater-
ial, to an additional electrode.
(To be connected to pin Y2).
(In the diagram this electrode
is shown by the dotted line).
Mode of Operation
CLD1EA1CM24
REF
Hi
Fillin
g
or Emptyin
g
A1
A2
Y1
Y2
(PE)
14
11
Example 1
(Din-rail)
Operation Diagram
T
Y1
Y2
T
TT
Power supply ON
Filling with ON-delay (prevent overflow)
(Hi-probe)
Level
Output ON
Fill
Off
On
OnOff
Off
On
OnOff
Empty
Time
[11-14]
T
Y1
Y2
TT T
Power supply ON
Filling with Off-delay
(Lo-probe)
Level
Output ON [11-14]
Fill
Off
On
OnOff
Off
On
OnOff
Empty
Time
TT
Y1
Y2
TTT
TT
Power supply ON
Filling with ON and Off-delay
(Center-probe)
Level
Output ON [11-14]
Fill
Off
On
OnOff
Off
On
OnOff
Empty
Time
MRLO GAVAZZI
Specifications are subject to change without notice (14.12.2015) 3
Operation Diagram
CLD1EA1CM24
T
TT
Y1
Y2
T
Power supply ON
Emptying with Off-delay
(Hi-probe)
Level
Output ON [11-14]
Fill
Off
On
OnOff
Off
On
OnOff
Empty
Time
TTTT
Y1
Y2
Power supply ON
Emptying with ON-delay (Prevent dry run)
(Lo-probe)
Level
Output ON [11-14]
Fill
Off
On
OnOff
Off
On
OnOff
Empty
Time
TTTTT
TT
Y1
Y2
Power supply ON
Emptying with ON and Off-delay
(Center-probe)
Level
Output ON [11-14]
Fill
Off
On
OnOff
Off
On
OnOff
Empty
Time
CARLO GAVAZZI
4 Specifications are subject to change without notice (14.12.2015)
Delivery Contents
• Amplifier
• Packaging: Carton box
• Manual
CLD1EA1CM24
Wiring Diagram
Conductive Level Controller
Sensitivity
1
2
3
10
456
8
7
9
Fill Empty
Off
On
OnOff
Off
On
OnOff
Delay
1
2
3
10
456
8
7
9
30sec.
Y2 11 14
Y1 A1 A2
Dimension Drawings
60,2
41,5
81
17,5