Huba Control 699 Differential Pressure Transmitter
Differential-pressure transmitter family with original technical datasheets.
Manufacturer: Huba Control AG.
Official Source
Huba manufacturer product index / technical documents →
Check measuring range, medium compatibility, output and current approval for the ordered model suffix.
Huba Control Model 699 official current catalog / downloads →
Huba Type 699 — adjustable low-pressure differential control transmitter
Huba 699 is an HVAC/building and industrial low-pressure transmitter that uses dedicated sensor ranges, a selectable characteristic curve and optional display. It is distinct from the bar-scale Type 692 and from 699M’s integrated Modbus/analogue I/O architecture.
| Topic | Huba model specification | Engineering and QA consequence |
|---|---|---|
| Pressure variants | Relative/differential −1…+50 mbar envelope across ordering variants | Ranges include overpressure and negative-pressure order configurations; verify one- or two-port tubing orientation. |
| Sensor response | <20 ms reported sensor response, with separate <10 ms load-change datum | Do not represent digital display sampling or complete duct airflow time as 20 ms. |
| Configurable curves | Linear or square-root output selectable; end value adjustable by DIP switch/turbopoti; resettable zero | Square-root conversion is useful for pitot/venturi-derived flow, only with correct K factor and pressure span. |
| Communication options | Analogue outputs and optional RS-485 Modbus RTU module; LCD display variant | Current draw, signal and physical connectors change with the display/communication choices. |
| Media and operating temperature | Air/approved gas, medium 0…70°C; variants with and without LCD | Selection by OEM variant sheet avoids attributing the 699M’s expanded I/O to 699. |
Variant-specific specification and approvals
Before installing or certifying the device, verify exact Huba order code, system-pressure limits, process media, signal supply, output scaling, pressure ports, EMC and the final assembly’s applicable certificates. No general-purpose ATEX/IECEx approval is claimed on this page.
OEM source: Huba 699 manufacturer product page.