PSK Controllers Ltd.
R
sk
Controllers Ltd
HKM-1
Multi voltage, filling or emptying liquids level monitor
• Monitors one or two levels of conductive liquids.
• Sensitive adjustment from 50Ω to 100kΩ
• Controls in conductive or non-conductive containers
• One level regulated option.
• Filling or emptying function selected via slid switch
• LED indicates state of relay
• Multi voltage
Controls of maximum and/or minimum levels of conductive liquids such as; (tap water, sea water, waste water, chemical solutions, coffee etc).
The principle is based on measurement of the apparent resistance of the liquid between two submerged probes. When the measured value is
lower than the present threshold on the unit front face, output relay changes state. To avoid electrolytic phenomena, an AC current flows across
the probes. The probe wire (max length 100 meters) does not have to be screened, but avoid mounting it in parallel with the power supply wires.
A screened wire can be used, with the screening connected to the common.
One level filling control (Pump UP)
One level emptying control (Pump DN)
(H) And (C) terminals connected, a single probe (L) used.
(H) And (C) terminals connected, a single probe (L) used.
Power - on, probe (L) Emerged (above the level of the liquid). Power - on, probe (L) submerged (under the level of the liquid). Relay
Relay energizes pump is ON filling starts, red LED lit. Relay de-en- energizes pump is ON emptying starts, red LED lit. When probe (L) emerges
ergizes and pump is OFF when liquid level reaches probe (L) relay de-energizes and pump is OFF, pump stops. When liquid level starts to
level.
rise again and reaches probe (L) pump is on end emptying starts.
Two level filling control (Pump UP)
Two level emptying control (Pump DN)
Power - on, probe (L) Emerged (above the level of the liquid). Power - on, probes (L) & (H) are submerged (below liquid level). Relay
Relay energizes pump is ON filling starts, red LED lit. Relay de-en- energizes pump is ON emptying starts, red LED lit. When liquid level reaches
ergizes and pump is OFF when liquid level reaches probe (H) under probe (L), relay de-energizes and pump is OFF, pump stops. When
level.
liquid level starts to rise again reaches probe (H) pump is ON end emptying
starts.
General specifications
Power supply: multi voltage
Supply tolerance: +10% / -15%
Function
Frequency: 50 / 60Hz
FILLING OR EMTYING CONTROL
Un
Power consumption: 2.4 VA
Unit
power-up
Duty cycle: 100%
T
Sensitivity range 4.7kΩ to 100kΩ
Maximum level
Display: LED red indicates relay energize.
Minimum level
Controlled level
Probes: cable length max 100m
Protection class open air: IP20
Protection class enclosed: IP40
Self-extinguishing plastic housing UL V0 acc IEC 529
Mounting position: on DIN-rail TS 35 according to EN 50022
Terminal : acc IEC 60947-7-1, IEC 60998-1
Terminal Capacity:1x4mm2 without multicore cable end
Output
relay
Emptying
function
Down
or
Up
Filling
function
Connections
L1
L2
L3
N
Liquid level controllers
Operating
S
1x0.5 to 2.5mm2 with/without multicore cable end
15
16
15
A1
A2
H
18
Output circuit
Relay: 1 C/O
Rated voltage: 250 Vac
max
Switching capacity ac: 2000 VA (8A / 250V) COS ᵠ = 1
L
C
min
Stop
Start
COMMON
fie
Dimensions
SIDE
62
45
Transport temperature: -25°C….+70°C
A2
15 18
1
HKM - 1
Volt
240VAC
110VAC
24VAC
16
ADJ
10
Pump DN
Pump UP
H L
C
Relative humidity (acc. IEC 721-3-3 CLASS 3K3): 15% to 85%
Vibration resistance (acc. IEC 68-2-6): 10 TO 55 H
Dimensions & weight
Width: 62 mm
Height: 65 mm
Depth (excl. DIN-profile): 72 mm
Weight: 214 gram
Ordering information
HKM-1
N
A2
Y2
A3
At 24VAC supply to avoid damage to
the equipment,connection
Must be as shows above
R
Y2 Y1 A3 A4
Line~
A1
Y1
A4
CAUTION:
73
Storage temperature: -25°C….+70°C
A1
65
Environmental conditions
Permissible ambient temperature: -20°C….+50°C
Volt
240VAC
110VAC
24VAC
Line~
A1
Y1
A4
N
A2
Y2
A3
24
ᵠ =1: 200.000 operations
ua
Q
TOP
Mechanical life: 1 x 10 operations
of ‫המכון‬
‫ואיכות‬Istitute
‫לבקרה‬
d
6
Electrical life at 1000 VA COS
C e rti
Max switching capacity ac: 10 A
Quatity & Control
lit y
M an age
st e m
Output
Switching capacity dc: 3 A 30 Vdc
Sy
P
nt
M
m
e
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