Datasheet| Property | Value |
|---|---|
| Measuring Medium | Compressed air, nitrogen, (free from aggressive, corrosive, caustic, toxic, flammable, and fire-promoting components). Other gases on request |
| Measurement Size | Residual oil content in mg oil/Norm m³ based on 1.0 bar [abs], +20° C, 0% relative humidity, according to ISO 8573-1 |
| Detectable Substances | Hydrocarbons, functional hydrocarbons, aromatics |
| Application Area | After activated carbon filter, after activated carbon adsorber, after oil-free compressing compressor, each with pre-filtration and drying |
| Ambient Temperature | +20 °C… +45 °C, rel. Humidity <= 75% without condensation |
| Compressed Air Temperature | +20 °C… +50 °C |
| Operating Overpressure | 3…9 bar, optional pressure reducer switchable up to 300 bar |
| Measuring Gas Humidity | <= 40% rel. Humidity, pressure dew point max. +10 °C, non-condensable humidity |
| Compressed Air Connection | G 1/4″ internal thread according to ISO 228-1 |
| Measured Values | mg/Norm m³, pressure and temperature compensated residual oil vapor content |
| Measurement Range | 0.001…5 mg/m³ (higher measurement ranges on request) |
| Detection Limit (Residual Oil) | 0.001 mg/m³ |
| Measuring Gas Flow | approx. 0.5 Norm liter/minute, based on 1.0 bar [abs] and +20 °C, in a relaxed state |
| Power Supply Plug-in Power Supply | 100…240 VAC / 1 Ph. / PE / 50…60 Hz / ± 10% |
| Outputs | Digital Output: RS 485 interface (Modbus-RTU), Ethernet via DS 400 / 500 Analog Output: 4…20 mA (galvanically isolated) Optional: 2x 4…20 mA analog output (galvanically isolated) 2x alarm output for external alarm column, alarm values freely adjustable |
| Operating Hours Counter | integrated |
| Dimensions (mm) | 200 x 130 x 120 (W x H x D) |
| Weight | approx. 7 kg |
“Forced Pressure Variation” for Long-term stable measurement results – auto-calibration:
Using the innovative “Forced Pressure Variation” measuring method, the OIL CHECK 500 generates internal reference gas in different mass concentrations. This process can be used to compensate for ageing or contamination-related components in the measurement signal, in particular long-term drift. No wearing parts such as activated carbon filters are required for the generation of zero air. The result is Low maintenance and Long-term stable Measuring.
Service friendly, no downtime:
The sensor unit can be replaced by the customer on site. This eliminates the need to return the entire device for recalibration.
Process reliability:
All functions / components are monitored internally. A complete function test report can be printed out using the service software.
On-site calibration:
Calibration can be carried out in the field using test gas cylinders. The service software can be used to generate a
verification report (as-found data) and a calibration report (as-left data) can be generated.
Ideal for Portable Measuring:
Compact Measuring devices, easy sampling and quickly ready for Measuring
Simple installation
Air inlet / air outlet – sampling via PTFE hose
or stainless steel line.
Digital and analogue interfaces as standard.
Connection via M12 plug
Service friendly – no downtime
Loosen four screws – replace sensor unit. At the touch of a button
a complete function test is carried out. This means that
Measuring can be continued almost without interruption.
