| Material receiver nozzle | Brass, nickel-plated | ||
| Nominal size, Laval nozzle | 0,7 mm | ||
| Silencer design | Closed | ||
| Ejector characteristic | High vacuum | ||
| Manual override | Non-detenting | ||
| Measured variable | Relative pressure | ||
| Switching element function | N/O contact | ||
| Symbol | 991.304 | ||
| Reverse polarity protection | For all electrical connections | ||
| Setting range hysteresis | -7,25 psi ... -0,725 psi | ||
| Switching status indication | Optical | ||
| Operating pressure | 21,75 psi ... 116 psi | ||
| Nominal operating pressure | 87 psi | ||
| Operational voltage range DC | 21,6 V ... 26,4 V | ||
| Switching output | PNP | ||
| CE mark (see declaration of conformity) | To EU EMC Directive | ||
| Note on operating and pilot medium | Lubricated operation not possible | ||
| LABS (PWIS) conformity | VDMA24364-B1/B2-L | ||
| Degree of protection | IP65 | ||
| Product weight | 145 g | ||
| Electrical connection | 4-pin M8x1 Plugs | ||
| Pneumatic connection, port 1 | M5 | ||
| Vacuum connection | G1/8 | ||
| Material seals | NBR | ||
| Material filter housing | PC | ||
| Material silencer | PE POM |
| Material transmitter nozzle | Nickel-plated brass | ||
| Grid dimension | 15 mm | ||
| Mounting position | optional | ||
| Grade of filtration | ≤ 40 µm | ||
| Integrated function | Electric on-off valve Filter Vacuum switch | ||
| Measuring principle | Piezoresistive | ||
| Switching function | Threshold value comparator | ||
| Valve function | Closed | ||
| Display type | LED | ||
| Setting options | Potentiometer | ||
| Setting range threshold value | -13,05 psi ... 0 psi | ||
| Max. vacuum | 85 % | ||
| Air supply time at nominal operating pressure | 2,2 s | ||
| Duty cycle | 100% | ||
| Approval | RCM trademark c UL us - Recognized (OL) | ||
| Operating medium | Compressed air to ISO 8573-1:2010 [7:4:4] | ||
| Corrosion resistance class CRC | 2 - Moderate corrosion stress | ||
| Media temperature | 0 °C ... 60 °C | ||
| Ambient temperature | 0 °C ... 50 °C | ||
| Pressure measuring range | 0 psi ... 14,5 psi | ||
| Type of mounting | With through-hole Via female thread Either: | ||
| Pneumatic connection, port 3 | Integrated silencer | ||
| Note on materials | RoHS-compliant | ||
| Material filter | PA | ||
| Material housing | Wrought aluminium alloy | ||
| Material piston | POM |
