Datasheet_HRH_5

Datasheet_HRH_5
Level switch HRH-5
! Relay is designed for monitoring levels in wells, basins, reservoirs, tanks...
! In one device you can choose the following configurations:
- one-level switch of conductive liquids (by connecting H and D)
- two-level switch of conductive liquids
! One-state device monitors one level, two-state device monitors two levels (switches on one level
and switches off on another level)
! Choice of function PUMP UP, PUMP DOWN
! Adjustable time delay on the output (0.5 - 10s)
! Sensitivity adjustable by a potentiometer (5-100kΩ)
! Measuring frequency 10Hz prevents polarization of liquid and raising oxidation of measuring probes
! Galvanically separated supply voltage UNI 24.. 240 VAC/DC
! Output contact 1xchangeover/SPDT
EAN code
HRH-5: 8595188136396
! 1-MODULE, mounting onto a
Technical parameters
HRH-5
Functions:
Supply terminals:
Voltage range:
Input:
Toleration of voltage range:
Measuring circuit
Sensitivity ( input resistance):
Voltage n electrodes:
Current in probes:
Time response:
Max. capacity of probe cable:
Time delay (t):
Time delay after switching on (t1):
Accuracy
Accuracy in setting (mechanical):
Output
Number of contacts:
Current rating:
Switching voltage:
Switched voltage:
Min. switched output DC:
Mechanical life (AC1):
Electrical life:
Other information
Operational temperature:
Storing temperature:
Electrical strenght:
Operational position:
Mounting:
Protection degree:
Overvltage category:
Pollution degree:
Profile of connecting wires (mm2):
Dimensions:
Weight:
Standards:
Recommended measuring probes:
2
A1 - A2
24... 240 V AC/ DC (AC 50 - 60 Hz)
max. 2 VA
-15 %; +10 %
adjustable in range 5 kΩ -100 kΩ
max. AC 3.5 V
AC <0.1 mA
max. 400 ms
800 nF (sensitivity 5kΩ), 100 nF (sensitivity 100 kΩ)
adjustable, 0.5 -10 sec
1.5 sec
±5%
1x changeover/ SPDT (AgNi / Silver Alloy )
8 A / AC1
2500 VA , 240 W
250 V AC1 / 24 V DC
500 mW
1x107
1x105
Device description
Supply voltage terminals
Terminals for conection of
probes H, D
Indication of supply voltage
Choice of function
Output indication
Sensitivity setting of probe
Choice of function
Adjustment of
delay on output
Terminal for connection of
probe C
Output contacts
Connection
Monitoring of two levels
Monioring of one level
Un
A1
16
18
C
D
H
A2
15
Un
A1
A2
A1
A2
H
D
H
D
16
C
15
18
max
max
-20 °C to +55 °C (-4 °F to 131 °F)
-30 °C to +70 °C (-22 °F to 158 °F)
3.75 kV (supply - sensors)
any
DIN rail EN 60715
IP 40 from font panel / IP 10 terminals
III.
2
AWG 10 (2.5 mm2)
90 x 17.6 x 64 mm (3.5˝ x 0.7˝ x 2.5˝)
72 g (2.5 oz.)
EN 60255-6, EN 61010-1
see pg. 98
Symbol
94
8A/250V AC1
DIN rail
min
Tank with
monitored level
16
C
15
18
Tank with
monitored level
Function
Function PUMP UP
Function PUMP DOWN
Un
max
level
min
15-18
red LED
Un
max
level
min
t
t
15-18
t
t
red LED
Relay is designated for monitoring of levels of conductive liquids with possibility of functions: PUMP UP or
PUMP DOWN. To prevent polarization and liquid electrolysis of liquid, and undesirable oxidation of measuring
probes, alternating current is used. For measuring use three measuring probes: H- upper level, D- lower level,
C - common probe. In case you use a tank made of a conductive material, you can use it as probe C. In case you
require monitoring of one level only, it is neccessary to connect inputs H and D and connect them to one probe
- in this case sensitivity is lowered by half (2.5... 50kΩ). Probe C can be connected with a protective wire of
supply system (PE). To prevent undesirable switching out output contacts by various influences (sediment on
probes, humidity...) it is possible to set sensitivity of the device according to conductivity of monitored liguid
(corresponding to “resistance” of liquid) range 5 up to 100kΩ. To reduce infuences of undesirable switching of
output contacts by liquid gorgle in tanks, it is possible to set delay of output reaction 0.5 - 10s.
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