Screw compressors

The table below gives an initial overview of which oil monitoring is available for which compressors. The actual choices when ordering the compressor are decisive.
External and optional devices can usually be found also in the BITZER SOFTWARE, after choosing the compressor, in the tab "Technical Data".
In which cases oil monitoring is necessary or recommended is stated in the respective operating instructions of the compressor.

Overview oil monitoring for screw compressors

Compressors

Oil monitoring

Compact screw compressors

CSH65 .. 95
CSH76 .. 96

Option:
OLC-D1-S,
minimum / maximum or only minimum

CSW65 .. 95

Option:
OLC-D1-S,
minimum / maximum or only minimum

CSW105

Standard:
Module CM-SW-01 with OLC-D1-S minimum

Option:
additionally OLC-D1-S maximum

CSVH
CSVW

Standard (integrated into control of frequency inverter):
OLC-D1-S maximum

CSHP65 .. 95

Option:
OLC-D1-S

CSH65EX .. CSH95EX
CSHP65EX .. CSHP95EX

Standard:
OLC explosion protected, minimum

Option:
OLC explosion protected, maximum

Semi-hermetic screw compressors

HS.53 .. 74
HSKB53 .. 74

Standard:
external with oil flow switch and sight glass (included in oil injection kit)

HS.85
HSKB85

Standard:
integrated oil flow switch and oil filter monitoring

HS.95

Standard:
external with oil pressure sensor and oil flow monitoring at the compressor with OLC-D1-S

Open drive screw compressors

OS.53 .. 74

Standard:
external with oil flow switch and sight glass (included in oil injection kit)

OS.A53 .. 74
OSKAB53 .. 74

Standard:
external with oil flow switch (included in oil injection kit)

OS.74EX

Standard:
external with oil flow switch, see

  • SB-509: Operating instructions Open drive screw compressors in special explosion-proof design

OS.A74EX

Standard:
external with oil flow switch (included in oil injection kit), see

  • SB-509: Operating instructions Open drive screw compressors in special explosion-proof design

OS.85

Standard:
integrated oil flow switch and oil filter monitoring

OS.A85
OSKAB85

Standard:
integrated oil flow switch and oil filter monitoring

OS.A95 .. 105

Standard:
external with OLC-D1-S as oil flow switch in the oil return, oil pressure sensor