COMET Tx4xx Industrial Transmitters and Transducers with RS458 Serial Interface
Tx4xx industrial transmitters and transducers with RS485 serial interface
PRODUCT DESCRIPTION
Programmable transmitters and transducers with RS485 galvanic isolated serial interface are designed to measure temperature, relative humidity and barometric pressure of air in non-aggressive environment. Transmitters and transducers are available in wall-mount, duct-mount and bar versions or with probe on a cable. For measuring temperature and relative humidity of compressed air is used type TxxxxP.
Digital conception with microprocessor allows to determine the other computed humidity values, like dew point temperature, absolute humidity, specific humidity, mixing ratio and specific enthalpy. Measured and calculated values are displayed on a two-line LCD display. Devices support Modbus RTU protocol, protocol compatible with standard Advantech-ADAM, ARION protocol and communication with HWg-Poseidon devices. For set of all parameters you can use TSensor software (see www.cometsystem.com).
Durable plastic case of the device contains electronic and connection terminals. For easy connection/disconnection of the output cable is used TxxxxL version with Lumberg connector (IP67) instead of a cable gland.
| Type * | measured values | ambient air | mounting |
| T0410 | T | external probe Pt1000/3850 ppm | wall |
| T4411 | T | ambient air | wall |
| T2414 | P | ambient air | wall |
| T5410 | T + RH | ambient air | wall |
| T3411 | T + RH + CV | ambient air | wall |
| T3413, T3413D | T + RH + CV | bar type | fix by means of the gland |
| T3417, T3417D | T + RH + CV | bar type | fix by means of the gland |
| T3419 | T + RH + CV | probe with a cable | wall |
| T3419P | T + RH + CV | probe with a cable – pressure up to 25 bar | Wall |
| T7410 | T + RH + P + CV | ambient air | Wall |
| T7411 | T + RH + P + CV | probe with a cable | Wall |
- *models marked TxxxxZ are custom – specified devices
T…temperature, RH…relative humidity, P…barometric pressure, CV…computed values
INSTALATION AND OPERATION
The transmitters and transducers designed for mounting on the wall are mounted on a flat surface with two screws or bolts. The duct mount and bar types of transmitters install by clamping a metal stem into the gland or flange PP4 or PP90 (optional accessory). The probe with a cable is placed into a measured environment. Pay attention to device mounting, because incorrect choice of working position or measuring point could adversely affect accuracy and long-term stability of measured values.
The connecting terminals are accessible after unscrewing the four screws in the corners of case and removing the lid. Communication cables, preferably shielded (external diameter 3 to 6.5 mm) with wire cross-section from 0.14 to 1.5 mm2 pass through the released glands and connect wires according to diagram. The Probe Pt1000 is connected by shielded cable with a length up to 10 m. Pass the cable through released gland and connect according to diagram so that, the shielding is connected to proper terminal device only. Do not connect it to other circuitry and do not ground it. Tighten glands and screw the lid. For TxxxxL devices and external probe connections is recommended to use shielded cable (external diameter 3 to 6.5 mm) with wire cross-section 0.75 mm2 (TxxxxL) or 1.50 mm2 (external probe). All cables should be located as far as possible from potential interference sources.
Devices don´t require special operation and maintenance. We recommend you periodic calibration for measurement accuracy validation.
COMMUNICATION PROTOCOLS AND ERROR STATES
Description of communication protocols you can download from www.cometsystem.com/manuals.htm Device setting from the manufacturer is ModBus RTU, address 1, communication speed 9600 Bd (no parity, 2 stop bits). To restore these settings, please unscrew the lid of case, close the jumper and press the button (next to connection terminal) for longer than six seconds.
Device continuously checks its state during operation and if an error appears, it is displayed relevant code: Err 1 measured or calculated value is over the upper limit, Err 2 measured or calculated value is below the lower limit or pressure measurement error occurred, Err 0, Err 3 and Err 4 it is a serious error, please contact distributor of the device.
SAFETY INSTRUCTIONS
Humidity and temperature sensors of the transmitters cannot be operate and store without a filter cap.- Temperature and humidity sensors have not to be exposed to direct contact with water and other liquids.
- It is not recommended to use the humidity transmitters for long time under condensation conditions.
- Take care when unscrewing the filter cap as the sensor element could be damaged.
- Don’t connect or disconnect transmitter and transducers while power supply voltage is on.
- If the sensing probe of T3419P device is installed, make sure that measured area is without pressure.
- Installation, electrical connection and commissioning should be performed by qualified personnel only.
- Devices contain electronic components, it needs to liquidate them according to currently valid conditions. – To complement the information in this data sheet read the manuals and other documentations that are available in the Download section for a particular device at www.cometsystem.com
Technical specifications
| Device type | T2414 | T4411 | T0410, T5410 | T3411, T7410 | T3419, T7411 | T3419P |
| Supply voltage | 9 to 30V | 9 to 30V | 9 to 30V | 9 to 30V | 9 to30V | 9 to 30V |
| Power consumption | max. 0.5W | max. 0.5W | max. 0.5W | max. 0.5W | max. 0.5W | max. 0.5W |
| Temperature measuring range | _ | -200to600°C | -30 to +80°c | 30 to +80°c | -30 to 105 °c | -30 to 105 °C |
| Accuracy of temperature measurement | _ | ±0.2°C (wihout probe) | ± o.4°C | ± 0A°C | ± 0A0c | ±0.4°C |
| Relative humidity (RH) measuring range* | _ | _ | _ | 0 to 100 %RH | 0 to 100 %RH | Oto 100 %RH |
| Accuracy of humidity measurement from 5 to 95 %RH at 23°C | _ | _ | _ | ±2.5 %RH | ± 2.5 %RH | ±2.5 %RH |
| Barometric pressure measuring range | 600 to 1100 hPa | _ | 1600 to 1100 hPa (T5410) | 1600 to 1100 hPa (T7410) | 600101100 hPa (T7411) | _ |
| Accuracy of barometric pressure measurement at 23°C | ±1.3 hPa | _ | ±1.3 hPa (T5410) | ±1.3 hPa (T7410) | ±1.3 hPa (T74 11) | _ |
| Other calculated humidity variables (dew point temperature, ..) | _ | _ | yes | yes | yes | |
| Recomended calibration interval | 1 year | 12 years | 12 years (T5410 … 1 year) | 1 year | 1 year | 1 year |
| Protection class of the case with elektronics | IP54 | IP65 | IP65 (T041 0) IP54 (T5410) | IP65 (T3411) IP54 (T7410) | IP65 (T3419) IP54 (T7411) | IP65 |
| Protection class of the sensors cover | _ | _ | IP65 | IP40 | IP40 | IP40
|
| Temperature operating range of the case with electronics’* | -30 to +80°c | -30 to +so0c | -30 to +80°c | -30 to +80°c | -30 to +80°c | -30 to +so0c |
| Temperature operating range of the sensing element (sensors) | _ | _ | -30 to +80°c | -30 to +80°c | -30 to +105°C | -30 to +105°C |
| Humidity operating range | 0 to 100%RH | Oto 100%RH | 0 to 100%RH | Oto 100%RH | 0 to100%RH | Oto 100%RH |
| Mounting position | cable glands upwards | any position | cable glands upwards | cable glands upwards”‘ | any position “‘* | any position “‘”‘ |
| Storage temperature range (environment without condensation) | -30 to +80°c | -30 to +80°c | -30 to +80°c | -30 to +80°c | -30 to +80°c | -30 to +so0c |
| Electromagnetic compatibility according to | EN 61326-1 | EN 61326-1 | EN 61326-1 | EN 61326-1 | EN 61326-1 | EN 61326-1 |
| Weight | 140 g | 150 g | 150 g | 230 g / 580 g | 210 (250,330) g | 260 (300, 380) g |
| Dimensions [mm] |
Electrical wiring
- The relative humidity measuring range is limited at temperatures above 85°C, see manuals for devices .
- It is recommended to switch off the LCD display at ambient temperature above 70’C.mounting position “cable glands upwards” is recommended for free space, in the air-conditioning duct you can place the device in any position
- if it can lead to long term condensation of water, it is necessary to use the probe at position with sensor cover downwards
Documents / Resources
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COMET Tx4xx Industrial Transmitters and Transducers with RS458 Serial Interface [pdf] Instruction Manual Tx4xx Industrial Transmitters and Transducers with RS458 Serial Interface, Tx4xx Industrial Transmitters, Industrial Transmitters and Transducers with RS458 Serial Interface, Industrial Transmitters, Transmitters |
