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Table of Contents
Related Manuals for Nokeval MTR265B
Summary of Contents for Nokeval MTR265B
- Page 1 Nokeval MTR265B User Manual...
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Page 2: Table Of Contents
Manufacturer ..............................3 Description ................................ 4 Installation ................................. 4 Maintenance ..............................9 Configuring ..............................11 Troubleshooting .............................. 13 Specifications ..............................14 Document information Device Scope: MTR265B Firmware Versions: 2.0 - 2.0 Document Type: manual Document ID: 3321 Document Version: Document Date:... -
Page 3: Introduction
Introduction MTR265B is IP65 rated wireless transmitter for Pt100, TC and mV inputs. The wireless concept allows easy installation, implementation and expansion also in difficult installation sites. Warnings MTR265B transmitter contains a primary battery and a low-power licence-free ISM band radio transmitter operating at 433.92 MHz. -
Page 4: Description
Installation Preparations Open MTR265B and install the AAA battery delivered with it according to the polarity markings of on the circuit board. Installing the battery in a wrong way may break the device. When screwing the housing together, O-ring is intact and that there is no gap between two parts of the housing. - Page 5 27 seconds for MTR265B. Transmit interval can be individually adjusted for each transmitter as instructed in the chapter Configuring. The following table presents maximum number of transmitters with different intervals and with different numbers of repeaters. Interval...
- Page 6 Measurement perspective MTR265B transmitter can be installed in the limits of the length of the sensor form the place where temperature is to be measured. When choosing the installation location one must consider multiple effects affecting the temperature distribution in the space.
- Page 7 To get more information about sensors go to www.nokeval.com. Connections MTR265B transmitter has a standard 4-pole M12 sensor connector for attaching the sensor. A compatible M12 plug is supplied with the transmitter. Refer to the following illustration for the pin out of the M12 connector on the transmitter.
- Page 8 JHAS-K-7/0.2 cable. With higher ambient temperatures teflon covered extension cables can be used up to 250 °C maximum temperature. MTR265B is factory set for Pt100 3-wire sensor. Any other sensor settings have to be mentioned when ordering or changed by the customer with programming cables.
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Page 9: Maintenance
Battery General MTR265B is powered by single 1.5 V AAA-size alkaline battery. Life time Battery life time depends on the used transmit interval. Ambient temperature also has an effect on the achievable battery life, which will be significantly shorter in extremely cold and very hot environments. The following graph gives a rough estimate of battery life with different transmit intervals. - Page 10 Nokeval web site at address www.nokeval.com. On the pages select Support (top of the page) and then Calibration (left side). Finally select the item Calibration certificates.
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Page 11: Configuring
Configuring Programming cable MTR265B transmitter has an internal Conf-programming connector, found on many other Nokeval products as well. Transmitter enclosure must be opened in order to reveal this connector and to be able to connect the programming cable. The following programming cables are available: ... - Page 12 In / Sensor This setting selects the sensor type which can be one of the following values: Value Description Standard platinum RTDs (IEC 60751) Nickel RTDs Copper RTDs No sensor linearization, result of resistance measurement is sent in Ohms Voltage input -30…2000 mV Thermocouple sensor with Receiver side linearization Linearization for B-type thermocouple Linearization for C-type thermocouple...
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Page 13: Troubleshooting
Troubleshooting No radio reception If the radio packets of this transmitter cannot be received and the operation of the receiving system has already been verified according to their manuals and preferably also with a transmitter known to work, then the following should be checked: 1. -
Page 14: Specifications
Frequency band 433.92 MHz ISM band Power +10 dBm E.R.P. maximum Open space range up to 500 m Indoor range 50…100 m typical Antenna integrated helix Compatible radio receivers Nokeval MTR, RTR, FTR, DPR and FT20 series 433.92 MHz radio receivers.