DNR2110A Crouzet, DNR2110A Datasheet
DNR2110A
Manufacturer Part Number
DNR2110A
Description
Nr2 Series Liquid Level Control
Manufacturer
Crouzet
Datasheet
1.DNR2110A.pdf
(3 pages)
CONTROLS
NR2 SERIES
LIQUID LEVEL CONTROL
UL listed
• Switch Selectable Pump Up or Down
• High and Low Sensitivity Models
• LED Power On Status
• LED Output Relay Status
SPECIFICATIONS:
Input Power . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Power Consumption . . . . . . . . . .
Electrode Voltage . . . . . . . . . . . . . . . . . . . . .
Electrode Current . . . . . . . . . . . . . . . . . . . . .
Response time . . . . . . . . . . . . . . . . . . . . . . .
Output relay . . . . . . . . . . . . . . . . . . . . . . . . .
Galvanic isolation by transformer . . . . . . . .
Isolation of contacts and
electrodes with power supply . . . . . . . . . . .
Operating Temperature . . . . . . . . . . . . . . . . .
Storage Temperature . . . . . . . . . . . . . . . . . .
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ORDERING INFORMATION:
Maximum level
Minimum level
Output
relay
Available Types
Output
204 Airline Drive, Suite 300, Coppell, Texas 75019 / Tel: (800) 677-5311 / FAX: (800) 677-3865 / www.crouzet-usa.com
Controlled
Down
or
Up
relay
Standard
Power
High
Low
U
level
Power
Down
or
Up
CSA recognized
U
D = DIN-rail
5 kΩ to 100 kΩ
50 kΩ to 1 mΩ
250Ω to 5 kΩ
Adjustable
Sensitivity
MOUNTING
D
t
24, 110, 230 VAC, +15%
3 VA
Maximum 24 VAC (50/60 Hz)
Maximum 5 mA (50/60 Hz)
100 ms at high level
500 ms at low level
1 single pole changeover contact
AgCdO 10 A AC
Class II VDE 0551 (4 kV;
creepage distance: 8mm)
2 kV AC
-10°C to +60°C
-20°C to +70°C
160 g
Products and specifications subject to change without notice.
t
Consult factory for application assistance.
Maximum Cable
Capacitance
NR2
100 nF
10 nF
1 nF
Unit power up
Controlled level
Draining function
Filling function
Unit power up
Controlled level
Draining function
Filling function
SERIES
NR2
GENERAL FEATURES:
Controls maximum and/or minimum levels of conductive
liquids (tap water, seawater, waste water, chemical
solutions, coffee, etc.) Applications for agri-foodstuffs,
chemical industries etc. The operating principle is based
on measuring the impedance of a liquid between two
submerged sensors. When this value is less than the
threshold set on the front panel of the unit, the output
relay changes status. The sensors are energized using
an AC current to avoid electrolysis.
1 - Regulation of two levels (minimum/maximum):
With the minimum electrode already submerged, the out-
put relay changes status when the liquid level reaches the
maximum electrode. It returns to its initial status when the
minimum sensor is not longer in contact with the liquid.
NOTE:
-When power is restored after an interruption of 0.53
second or less; in “UP” mode the relay is immediately
energized; in “DOWN” mode the relay remains
de-energized. (Assuming liquid level is below max level).
2-Regulation of one level:
Connect the maximum and common terminals together.
The relay will change state when the minimum probe
enters or leaves the liquid.
OBSERVATION: If the tank is conductive (metallic), it can
be used as the reference electrode (terminal C or 6).
NOTE:
- A red LED displays the state of the relay, LED “ON” =
Relay “ON”
-A green LED displays presence of the power supply
INPUT POWER
24A
110A
230A
110A
= 24 VAC
= 110 VAC
= 230 VAC
SENSITIVITY
LS
“BLANK” = 5 kΩ to 100 kΩ
HS
CONTROLS
= 250 Ω to 5 kΩ
= 50 kΩ to 1 mΩ
5-9
5
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DNR2110A Summary of contents
Page 1
... D MOUNTING D = DIN-rail Products and specifications subject to change without notice. 204 Airline Drive, Suite 300, Coppell, Texas 75019 / Tel: (800) 677-5311 / FAX: (800) 677-3865 / www.crouzet-usa.com GENERAL FEATURES: Unit power up Controls maximum and/or minimum levels of conductive liquids (tap water, seawater, waste water, chemical Controlled level solutions, coffee, etc ...
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