The EM2000M measures low differential pressure in clean air and compatible nonflammable, noncorrosive gases. A bright LED display supports local readings, while simultaneous 4–20mA and 0–10V outputs connect to PLCs, building controls and monitoring equipment. Applications include HVAC, ventilation ducts, filters, cleanrooms, laboratories, pharmaceutical facilities and industrial air-handling systems.
| Parameter | Specification |
|---|---|
| Standard measuring configuration | ±3000Pa, with customized spans within the configured sensor range |
| Additional family range options | Up to ±10kPa |
| Accuracy | ±1%FS |
| Annual stability | ±1%FS/year |
| Operating temperature | -6.7°C to 48.9°C |
| Pressure resistance | 10psi, approximately 0.69bar |
| Supply | 24VDC |
| Outputs | 4–20mA and 0–10V, simultaneously |
| Display | LED digital display with unit indicators |
| Units | Pa, kPa, mmWC and inWC |
| Housing | Die-cast aluminum with ABS components and a transparent PC cover |
| Nominal size | 120mm × 52.7mm |
| Process connections | 1/8in NPT female threads; 1/8in inside-diameter tubing |
| Orientation | Vertical |
HI and LO set the output endpoints within the configured sensor range. They do not increase the sensor's physical pressure range.
| Wire | Function |
|---|---|
| Red | +24VDC supply |
| Black | DC 0V / signal common return |
| Yellow | 4–20mA output |
| Green | 0–10V output |
Disconnect power before wiring and verify polarity before energizing. Connect the higher pressure to “+” and the lower pressure to “-”. Seal unused duplicate ports and keep pressure lines free of leaks, dust and condensation.
Press the center key to enter the menu, select an item with ▲/▼ and press the center key to edit. Save with the center key or wait five seconds for automatic save and exit. HI sets the pressure corresponding to 20mA; LO sets the pressure corresponding to 4mA. For example, HI = 2000Pa produces 20mA at or above 2000Pa, while LO = 100Pa produces 4mA at or below 100Pa.
The Unit menu selects Pa, kPa, mmWC or inWC. CS applies a small-signal threshold. Hold ▲ for six seconds with the pressure lines disconnected to zero the display. The English manual includes all menu codes, factory calibration restrictions and reset instructions.
For flush mounting, use a circular opening of 4-9/16in, approximately 115.89mm. For surface mounting, use three equally spaced 3/16in holes, approximately 4.76mm, on a 104.78mm bolt circle. Mount vertically in a dry location without vibration, using the supplied lugs, pressure fittings and plugs.
Check instrument and tubing seals periodically. Perform zero calibration annually and after operating conditions change. Use compatible dry gases and keep particles, corrosive vapors and high-temperature steam out of the pressure connections.
