Oil Level Alarm OLA41S comprising control unit and sensor

Instrumentation and Automation

Misc. Detectors

Oil Level Alarm OLA41S comprising control unit and sensor

Product Description

The Oil Level Alarm OLA41S can, when installed in a boiler system’s hot well, measure the occurrence of oil. If oil is detected a visual alarm indication will be shown on the control box and further relays are available to output the alarm to any central alarm system.
The OLA41S is equipped with a large red LED display for alarm indication. As well as two green LEDs indicating “Power on” and “Sensor OK”.
The OLA41S comprises the following article numbers:
Article No. 11018400: Control unit OLA41S
Article No. 11019011: Sensor OLA41S with mounting set
Article No. 11021519: Mounting set OLA41S (adaptor, compression ring and nut for 22 mm sensor unit)
Technical specifications
Sensing principle: Capacitive sensing (capacitive coupling to measure the dielectric of the medium)
Mains supply: 85-265 VAC, 50-60 Hz, and 24 VDC (+12/-6 VDC)
(marine tested and approved for connection to 115/230 VAC, 50/60 Hz,and 24 VDC nominal supply voltages)
Power consumption: Max. 2.5 W
Build in test-function: Self-test on start up
Response time: App. 20 seconds
Alarm level: ON/OFF
Sensor disconnected: Alarm indicating an incorrect connection to the sensor or defective sensor unit
Cable connections: Terminal 1 - 5: Sensor unit
Terminal 6 - 8: c/o relay contacts for ALARM RELAY 1
Terminal 9 - 11: c/o relay contacts for ALARM RELAY 2
Terminal 12 - 13: 24 VDC supply
Terminal 14 - 15: 115/230 VAC mains supply
Relay contacts: 8 A / 230 VAC. Relays must be protected by external fuses.
Ambient temperature: 0 – 55°C (oil level alarm control box)
0 – 95°C (sensor unit)
Pressure: Max. continuous operational pressure 2 bar. (Pressure safety limit 10 bar.)
Sensor installation: ¾" BSPT thread
Control box dimensions: 222 x 125 x 60 mm

Product Ratings

Not Available / To be Updated

Applicable Standards

Not Available / To be Updated