Product description
- Measuring range: –500... +500 Pa
- Output: Modbus
- Protection type: IP 67 (according to EN 60 529)
International system of units SI (default) can be changed to Imperial (via Modbus).
Incl. connection set ASD-06 (2 m connection hose, two pressure port nipples, screws).
The pressure sensor is intended to measure positive, negative or differential pressure in clean air and gaseous media.
It is used in clean-room, medical and filter technology, ventilation and air-conditioning ducts, spray booths, large-scale catering facilities, for filter monitoring and level measurement or for controlling frequency converters.
A pressure sensor with a piezoresistive measuring element guarantees precise measurement results.
The following parameters can be accessed via the Modbus: differential pressure [Pa] [inWC].
Modbus sensor SD with RS485 Modbus interface (not galvanically isolated), selectable bus termination resistance, DIP switch for setting the bus parameters and bus address in current-free state, internal LEDs for telegram status display.
Uses internal diagnostics to detect sensor breakage or sensor short circuit as errors.
The sensor is factory-calibrated; an environmental precision adjustment by an expert is possible.
Technical data
| Voltage supply | 24 V AC (± 20 %) and 15...36 V DC |
| Power consumption | < 1.0 W/ 24 V DC < 2.2 VA/ 24 V AC |
| System of units | SI (default) or Imperial (switchable via Modbus) |
| Data points | Differential pressure [Pa] [inWC] |
| Type of pressure | Differential pressure |
| Measuring range | –500... +500 Pa |
| Accuracy | Type 1218 (500 Pa): typical ± 13 Pa at +25 °C /+77 °F |
| Zero point offset | ± 10 % measuring range |
| Above-/ below-pressure | max. 5 x measuring range |
| Hysteresis | 0.3 % of final value |
| Temperature drift values | ± 0.1 % per °C of final value |
| Linearity | < ± 1 % of final value |
| Media contacting parts | PA6 Duroplast Si epoxy RTV BSG UV silicone gel |
| Media temperature | –20...+50 °C /–4...+122 °F |
| Medium | clean air and other non-aggressive non-combustible gases |
| Bus interface | RS 485 not galvanically isolated bus termination activatable via DIP switches. Up to 32 devices possible in one segment. In case of a greater number of devices RS485 repeaters must be used. |
| Bus protocol | Modbus (RTU mode) address range 0...247 selectable |
| Baud rate | 9600 19200 38400 Baud |
| Status display | LED green = Telegramm valid LED red = Telegram error |
| Signal filtering | 1 s / 10 s |
| Pressure connection | with nozzles for pressure hose Ø 6 mm |
| Housing | Plastic UV-resistant polyamide material 30 % glass-globe reinforced with quick-locking screws (slotted/ Phillips head combination) colour traffic white (similar to RAL 9016) |
| Housing dimension | 72 x 64 x 37.8 mm (Tyr 1 without display) |
| Cable connection | Cable gland plastic 2x M 12 x 1.5 (Y-adapter) with strain relief exchangeable max. inner diameter 6 mm |
| Electrical connection | 0.14 - 1.5 mm² via terminal screws |
| Long-term stability | ± 1 % per year |
| Permissible humidity | < 95 % RH non-precipitating air |
| Protection class | III (according to EN 60 730) |
| Protection type | IP 67 (according to EN 60 529) Housing in the built-in state Housing tested TÜV SÜD Report No. 713139052 (Tyr 1) |
| Standards | CE conformity according to EMC Directive 2014/ 30/ EU |
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We also manufacture individually
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