Page 24 - Elko relays

22

LIQUID LEVEL CONTROL RELAY HRH-2

Features:
»»
» » Supply voltage AC/DC 230V or AC/DC 24V
»»
» » Single switch with single-state monitoring
»»
» » Single switch with double-state monitoring
»»
» » Selection function of:
Pump up (filling)
Pump down (emptying)
» » Adjustable hysteresis (5-100k )
»»
» » Adjustable time delay of output (1-10s)
»»
»»
» » Output contact: 1x changeover 16A
» » 1-MODULE, DIN rail mounting
»»

Technical parameters HRH-2
Function: 2
Supply Terminals: A1 - A2
Supply voltage: AC/DC 230V or AC/DC 24V
Consumption: 2.5VA
Supply voltage tolerance: -15%; +10%
Measuring circuit
Hysteresis (input resistence): 5k - 100k
Voltage on electrode: max. AC 5V
Current in probes: AC < 0.5mA Description
Time reaction: max. 400ms
Max. probe capacity: 3 nF
Time delay: adjustable, 1-10s
Accuracy
Setting accuracy (mech): +/-5%
Output
Number of contacts: 1 x changeover, (AgNi)
Rated current: 16A/AC1
Switching capacity: 4000 VA / AC1, 384 W / DC
Inrush current: 30A / < 3s
Switching voltage: 250V AC1 / 24V DC
Min. breaking capacity DC: 500mW
Mechanical life: 3 x 10 7
Electrical life (AC1): 0.7 x 10 5
Other information
Operating temperature: -20.. + 55 C
0
Storage temperature: -30.. + 70 C
0
Electrical strength: 4 kV (input - output) Function description
Operating position: any The HRH-2 is a liquid level control relay. The HRH-2 can be used with two probes if the
Mounting: DIN rail EN 60715 body of the holding tank is metal. HRH-2 can use three probes for measuring: H-high
level, D-down level, C-common probe. C-probe is also connectable with protective
Protection: IP40 conductor of supply system (PE). The HRH-2 is selectable for pump up or pump down
Overvoltage category: III (filling or emptying). It is possible to set the device sensitivity according to liquid
Pollution degree: 2 conduction (appropriate to liquid resistance in range 5Kohms to 100Kohms). When
requested controlling of only one level inputs H+D, must be connected and link to sole
Max. cable size: max. 2.5mm / with sleeve 1.5mm 2 sensor. When the HRH-2 is set for pump up (filling), and the level is between the min and
2
Dimensions: 90 x 17.6 x 64mm max the output relay will be de-energised. When the level falls below the min, the relay
output will energise after the set time delay. When the HRH-2 is set for pump down
Weight: 76g (emptying) and the level is between the min and max, the output relay will be
Standards: EN 60255-6, EN 61010-1 de-energised. For unwanted switching of output contacts due to level swirling, it is
possible to adjust output delay of 1 - 10sec.
Measuring sensors: see page 22
IPD INDUSTRIAL PRODUCTS Phone: 1300 556 601 www.ipdgroup.com.au