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General| Measurement Parameters | Temperature, Humidity, Pressure |
|---|---|
| Temperature Range | -40 to +60 °C |
| Humidity Range | 0 to 100 %RH |
| Operating Temperature | -40 to +60 °C |
| Operating Humidity | 0 to 100 %RH |
| Protection Class | IP65 |
| Power Supply | 10 to 30 VDC |
| Communication Protocols | Modbus |
| Measurement accuracy of humidity | ±1.5 %RH |
| Measurement accuracy of temperature | ±0.2 °C |
| Output Signal | RS-485 |
Provides overview of the manual's content and structure.
Covers critical safety warnings, ESD precautions, and handling guidelines.
Details regulatory compliance, EU directives, standards, and type approvals.
Includes patent notices, trademarks, license agreements, and warranty terms.
Introduces the PTU300 transmitter, its applications, and key features.
Details basic features, available options, and improvements over previous models.
Describes the physical structure and available probe types for the transmitter.
Provides instructions for various housing mounting methods, including standard and plate options.
Covers cable bushings, grounding procedures, and wiring systems (8-pin, D-9 connectors).
Offers general instructions and specific details for installing different probe types.
Details the installation of various optional modules like power supply, relays, and communication interfaces.
Guides the initial power-up, startup sequence, and language selection.
Explains using the display/keypad for basic display, menus, navigation, and settings adjustment.
Covers serial interface usage, user/service ports, and available commands.
Details LAN/WLAN configuration, IP settings, and network protocols.
Explains selecting data quantities, viewing, deleting, and managing recorded data.
Covers setting analog output modes, ranges, quantities, and performing tests.
Details setting up relays, hysteresis, error status indication, and testing.
Explains chemical purge and sensor heating functions for optimal sensor performance.
Describes MODBUS support, variants, connections, and implementation limitations.
Guides on enabling Serial and Ethernet MODBUS using display/keypad or serial line.
Details how to use diagnostic counters to troubleshoot MODBUS communication issues.
Explains how to switch the transmitter to other operating modes from MODBUS.
Covers essential regular maintenance like cleaning and probe filter replacement.
Guides on changing the sensor and understanding/resolving error states.
Provides contact information for technical assistance and procedures for returning the product.
Details pressure transducer calibration using offset, two-point, and multipoint adjustments.
Explains RH calibration using push buttons, display/keypad, and serial line.
Describes the specific procedure for RH calibration after replacing the sensor.
Details temperature calibration using display/keypad and serial line methods.
Guides on calibrating analog output channels using display/keypad and serial line.
Explains how to input calibration date and text information into the transmitter.
Lists detailed performance metrics for pressure, humidity, and temperature measurements.
Provides technical data for optional modules like power supply, relays, and communication interfaces.
Lists available optional modules, sensors, filters, mounting kits, and cables with order codes.
Presents physical dimensions for the transmitter, modules, and probes.
Details kits and examples for mounting probes in ducts.
Explains Swagelok kits for RH probe installation in pressure-tight applications.
Describes Swagelok kits for temperature probe installation.
Illustrates RH probe installations using cable glands for vapor-tight environments.
Shows vapor-tight and wall mounting installation examples for T-probes.
Details the kit for outdoor installation of PTU307 for meteorological measurements.
Provides the formula and parameters for calculating dewpoint temperature.
Presents formulas for mixing ratio, absolute humidity, enthalpy, and saturation pressure.
Lists and describes supported MODBUS function codes for transmitter communication.
Details register blocks, data formats (float, integer), and encoding for MODBUS communication.
Lists registers for accessing measurement data, including float and integer formats.
Describes registers for checking transmitter status and configuring operational parameters.
Explains diagnostic sub-functions for troubleshooting MODBUS communication issues.
Covers device identification objects and MODBUS exception response codes.
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