Conductivity level switch CoFox® ELT 680

Afriso Conductivity level switch CoFox® ELT 680
Afriso Conductivity level switch CoFox® ELT 680
Afriso Conductivity level switch CoFox® ELT 680
Afriso Conductivity level switch CoFox® ELT 680
Data sheet conductivity level switch CoFox® ELT 680
Afriso Data sheet conductivity level switch CoFox® ELT 680

Versions

Part no. Remember
Level switches CoFox® ELT 680 AC 230 V 53681
Level switches CoFox® ELT 680 DC 24 V 53682

Blue part no. = in-stock items

Description Format Language Download / Link
Data sheet conductivity level switch CoFox® ELT 680 Data sheet PDF
Afriso Data sheet conductivity level switch CoFox® ELT 680
Measuring and control technology for hygienic processes Product range industrial technology PDF
Afriso Measuring and control technology for hygienic processes
Enquiry level measurement Level indicators and level controllers PDF
Afriso Enquiry level measurement
The CoFox® ELT 680 level switch operates on the basis of conductivity. A delay can be set to avoid undesired switching as a result of surface turbulence. The sensitivity and adjustment range of the device have been designed in such a way as to keep contact resistance from impairing the reliability of the unit (e.g. caused by foam on the electrode insulator (in breweries, dairies and ice-cream plants). Furthermore, the unit is capable of interface layer detection between liquids having different levels of conductivity (e.g. water and milk) in pipes and tanks.
Adjustment range
Variable adjustment
Range HR:
1 kOhm to 100 kOhm
Range LR:
50 Ohm to 2,000 Ohm
Operating temperature range
Ambient:
-10/+60 °C
Supply voltage
AC 230 V or DC 24 V
Nominal power
4 VA or 2.5 W
Probe circuit
Max. AC 3 V
Switching output
Relay contact:
1 voltage-free changeover contact
Contact rating:
AC 250 V, 750 VA
DC 12 V, 1 A
Visual indication
Green LED
Time delay
Adjustable from 0 to 20 s
Fail-safe mode
Integrated selector for min. or max. fail-safe mode (low/high)
Housing
DIN rail housing made of impact-resistant plastic (ABS)
W x H x D:
73 x 55 x 112 mm
Degree of protection:
IP40 (EN 60529)
Scope of delivery
  • Level switch without probe
Afriso
  1. Green LED (normal) relay energised
  2. Fail-safe mode selector
  3. Relay output
  4. Potentiometer for sensitivity
  5. Switching delay potentiometer
  6. Mains supply Phase-L1-(Dc+)
  7. Mains supply Zero-N-(DC)
  8. Mains supply earth PE