Data Sheet

ManualsBrandsFinder ManualsElectromechanics- 10A Level Control Monitoring Relay SPDT-CO 250Vac

Features

Level control relays for conductive liquids

72.01 - Adjustable sensitivity

72.11 - Fixed sensitivity

• Emptying or filling functions

• LED indicator

• Reinforced insulation (6 kV - 1.2/50 μs) between:

- supply and contacts

- electrodes and supply

- contacts and electrodes

• 35 mm rail (EN 60715) mount

• Control about a single level or between

Min./Max. limits

• 72.01 available also for supply 400 V

• 72.01 available also with sensitivity range

(5...450) kΩ adjustable

• 72.01 available also for contact loads down

to 5 V 1 mA

1 CO (SPDT) 1 CO (SPDT)

16/30 16/30

250/400 250/400

4,000 4,000

750 750

0.55 0.55

16/0.3/0.12 16/0.3/0.12

500 (10/5) 500 (10/5)

AgCdO AgCdO

24 - 110...125 – 230...240 400 24 - 110...125 – 230...240

24 — 24

2.5/1.5 2.5/1.5 2.5/1.5

(0.8...1.1)U

(0.9...1.15)U

(0.8...1.1)U

(0.85...1.1)U

— (0.85...1.1)U

100 · 10

0.2 0.2

0.5 - 7 (selectable) 1

5…150 (adjustable) 150 (fixed)

–20…+60 –20…+60

IP20 IP20

• Sensitivity range (5...150) kΩ adjustable

• Delay time (0.5s or 7s) switch selectable

• Emptying or filling functions switch selectable

• Sensitivity fixed 150 kΩ

• Delay time fixed: 1s

• Emptying or filling functions link selectable

Contact specification

Contact configuration

Rated current/Maximum peak current A

Rated voltage/Maximum switching voltage V AC

Rated load AC1 VA

Rated load AC15 (230 V AC) VA

Single phase motor rating (230 V AC) kW

Breaking capacity DC1: 30/110/220 V A

Minimum switching load mW (V/mA)

Standard contact material

Supply specification

Nominal voltage (U

)V AC

V DC

Rated power AC/DC VA (50 Hz)/W

Operating range AC

Technical data

Electrical life at rated load AC1 cycles

Electrode voltage V AC

Electrode current mA

Run-on time s

Max sensitivity range kΩ

Insulation between supply/contacts/electrode (1.2/50 μs)

Ambient temperature °C

Protection category

Approvals (according to type)

U = 24 V DC

24 V AC 50/60 Hz

(110...125)V AC 50/60 Hz

(230...240)V AC 50/60 Hz

U = 24 V DC

24 V AC 50/60 Hz

(110...125)V AC 50/60 Hz

(230...240)V AC 50/60 Hz

FL = Filing – 7s delay

FS = Filling – 0.5s delay

ES = Emptying – 0.5s delay

EL = Emptying – 7s delay

F = Filling

E = Emptying

FOR UL RATINGS SEE:

“General technical information” page V

For outline drawing see page 8

72 Series -

Monitoring relays

72.01 72.11

IX-2012, www.findernet.com

Summary of content (12 pages)

PAGE 1
72 Series - Monitoring relays Features 72.01 72.11 Level control relays for conductive liquids 72.01 - Adjustable sensitivity 72.11 - Fixed sensitivity Emptying or filling functions LED indicator • Reinforced insulation (6 kV - 1.2/50 μs) between: - supply and contacts - electrodes and supply - contacts and electrodes • 35 mm rail (EN 60715) mount • Control about a single level or between Min./Max. limits • 72.01 available also for supply 400 V • 72.01 available also with sensitivity range (5...
PAGE 2
72 Series - Monitoring relays Features 72.42 Priority change relay Special relay for alternating loads, for applications with pumps, compressors, air conditioning or refrigeration units 2 independent NO output, 12 A 4 functions • 2 independent control signals, insulated from supply • 110...
PAGE 3
72 Series - Monitoring relays Ordering information Example: 72 series level control relay, adjustable sensitivity range, (230…240)V AC supply voltage. 7 2 . 0 1 . 8 . 2 4 0 . 0 Series Type 0 = Level control relay, sensitivity range adjustable (5...150)kΩ 1 = Level control relay, sensitivity fixed 150 kΩ 4 = Priority change relay No.
PAGE 4
72 Series - Monitoring relays Technical data Insulation 72.01/72.11 Insulation Dielectric strength 72.42 Impulse (1.2/50 μs) between supply and contacts 4,000 V AC 6 kV 6 kV between supply and control (for 110…240 V version only) 2,500 V AC — 4 kV between electrodes, Z1-Z2 and supply* 4,000 V AC 6 kV — between contacts and electrodes 4,000 V AC 6 kV — between open contacts 1,000 V AC 1.5 kV 1.
PAGE 5
72 Series - Monitoring relays Functions for 72.01 and 72.11 U = Supply voltage B1 = Max level electrode B2 B3 Contacts Supply voltage NO output contact Open Closed = Min level electrode OFF Open 11 - 14 11 - 12 = Common ON Open 11 - 14 11 - 12 ON Open (Timing in Progress) 11 - 14 11 - 12 ON Closed 11 - 12 11 - 14 LED = Contact 11-14 Z1-Z2 = Link to select emptying (Type 72.11) Function and Run-on time Type 72.01 FL = Level control by Filling, Long (7sec) run-on delay.
PAGE 6
72 Series - Monitoring relays Emptying functions Wiring diagram Examples with 3 electrodes Emptying Control – between Max. and Min. levels. Under normal operation the liquid level can be expected to cycle between the Maximum and the Minimum electrodes, B1 and B2 (plus a degree of over and under-shoot). Type 72.01 U = 24 V DC 24 V AC 50/60 Hz (110...125)V AC 50/60 Hz (230...
PAGE 7
2 Series - Monitoring relays Functions for 72.
PAGE 8
72 Series - Monitoring relays MI function example This shows the 72.42 Priority change relay working in conjunction with a single 72.01 level controller. Under normal conditions the liquid level is expected to remain within the range shown as Min to Max. In this case the function of the 72.42 will be to alternate the duty between both pumps, to even wear across both pumps. There is no provision to run both pumps simultaneously. ME function example This shows the 72.
PAGE 9
72 Series - Monitoring relays Accessories for 72.01 and 72.11 Suspended electrode for conductive liquids, complete with cable. Suitable for level monitoring in wells and reservoirs not under pressure. Order appropriate number of electrodes - additional to the relay. •Electrode compatible with food processing applications (according to European Directive 2002/72 and cod. FDA title 21 part 177): 072.01.06 Cable length: 6 m (1.5 mm2) 072.01.06 2 Cable length: 15 m (1.5 mm ) 072.01.
PAGE 10
72 Series - Monitoring relays Accessories for 72.01 and 72.11 Floor water sensor, designed for the detection and reporting of the presence of floor surface water. 072.11 Technical data Electrode material stainless steel (AISI 316L) Wire capability of terminals Max screw torque 072.11 Nm Max. wire size mm2 AWG Wire strip length mm 0.
PAGE 11
72 Series - Monitoring relays Accessories for 72.01 and 72.11 Electrode holder with three poles. Electrode not incuded. Order appropriate number of electrodes holders - additional to the relay. 072.53 Technical data Max liquid temperature 072.53 Electrode material °C + 130 stainless steel (AISI 316L) Electrode and electrode connector, multiple electrodes may be interconneced to provide required length Technical data 072.500 Electrode - 500 mm long, M4 thread, stainless steel 072.
PAGE 12
72 Series - Monitoring relays Application notes for 72.01 and 72.11 Applications The main application for these relays is for the sensing and control of the level of conductive liquids. Selectable options allow for this control to be achieved either through a filling operation or through an emptying operation, and in either case “positive logic” is used. Level control can be achieved around a single level – using 2 electrodes, or between Minimum and Maximum levels – using 3 electrodes. Additionally, the 72.