Oil level monitoring OLC-D1-S

OLC-D1-S is an opto-electronic oil level monitoring using infrared light. It is mainly used for screw compressors and differs from the other types of OLC-D1 mainly by a different prism unit. It is mounted instead of a sight glass and consists of

a prism unit (screwed into the housing) and
an opto-electronic unit (screwed into the prism unit, is integrated into the control of the system).

Oil level monitoring OLC-D1-S, dimensions in mm.1: Prism unit (especially for OLC-D1-S)2: Glass cone3: Seal (copper gasket ring)4: Opto-electronic unit OLC-D15: Connection cable6: Screwing cap — Oil level monitoring OLC-D1-S, dimensions in mm.
1: Prism unit (especially for OLC-D1-S)
2: Glass cone
3: Seal (copper gasket ring)
4: Opto-electronic unit OLC-D1
5: Connection cable
6: Screwing cap

Sketch of the opto-electronic unit of OLC-D1. The OLC-K1 looks very similar, but has 6 cables instead of 5.

Photo of the prism unit of the OLC-D1-S (part no. 361 828 02)

Opto-electronic oil level monitoring OLC-D1-S
Variant	can be ordered as spare part assembly with part no.	Prism unit	Opto-electronic unit
230 V	347 962 01	361 828 02	347 949 01
230 V for R290	347 962 04	361 828 02	347 949 01
115 V	347 962 02	361 828 02	347 949 02
115 V for R290	347 962 05	361 828 02	347 949 02
24 V	347 962 03	361 828 02	347 949 04
24 V for R290	347 962 06	361 828 02	347 949 04

Examples for assemblies:

Assembly OLC-D1-S, 115 V (part no. 347 962 02)

Assembly OLC-D1-S, 24 V (part no. 347 962 03)

For details see

AW-180: Oil level monitoring, mounting and electrical connection

and Data sheet of the opto-electronic unit. The mounting is also described in the respective Operating Instructions of the compressor.