Surface contact temperature or tube contact temperature measuring transducers THERMASGARD® ALTM1 - Modbus - T3
SURFACE CONTACT TEMPERATURE/ TUBE CONTACT TEMPERATURE MEASURING TRANSDUCERS THERMASGARD® ALTM1 - MODBUS - T3
Calibratable THERMASGARD® ALTM1-Modbus-T3 surface-contact temperature measuring transducer (compact version) with Modbus connection, in an impact resistant plastic housing with quick-locking screws, optionally with/without display, and strap.The surface-contact transmitter serves to detect the temperature on lines, pipes (e.g. cold and warm water) or on heating sections for heating control.
Innovative Modbus sensor with galvanically separated RS485 interface, selectable bus termination resistance, DIP switches for setting the bus parametres and bus address in current-free state, LEDs for telegram status display, two separate push-in terminals and a large back-lit three-line display with customised programming in the 7-segment range and dot-matrix ranges. Uses internal diagnostics to detect sensor breakage or shorts as errors. The error messages can be retrieved via Modbus and are shown on the display. The sensor is factory-calibrated and can be fine-tuned to ambient conditions by an expert.
AVAILABLE CONFIGURATIONS
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item number
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designation
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1101-12B6-0000-000
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THERMASGARD® ALTM1-Modbus-T3
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1101-12B6-4000-000
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THERMASGARD® ALTM1-Modbus-T3 LCD
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TECHNICAL DETAILS
Voltage supply
24 V AC (± 20 %) and 15…36 V DC
Power consumption
Temperature deviation
typically ± 0.2 K at +25 °C
Sensor
Pt1000, DIN EN 60751, class B
Measuring range
–50...+150 °CTmax up to +100 °C (compact variant)
Zero point offset
± 10 °C
Ambient temperature
Measuring transducer –30...+70 °C
Error detection
sensor breakage, sensor short circuit
Bus protocol
Modbus (RTU mode), address range 0...247 selectable
Signal filtering
0,3 s / 1 s / 10 s
Process connection
endless metal strap and metal tightener (included in scope of delivery)
Strap dimensions
Ø = 13 - 92 mm (¼ - 3"), L = 300 mm
Electrical connection
0.2 - 1.5 mm², via push-in terminal
Cable connection
cable gland, plastic (2x M 20 x 1.5; with strain relief, exchangeable, inner diameter 8 - 13 mm) orM12 connector according to DIN EN 61076-2-101 (optional on request)
Cable gland
2x M 20 x 1.5; with strain relief, exchangeable, inner diameter 8 - 13 mm
Permissible air humidity
Protection class
III (according to EN 60 730)
Protection type
IP 65 (according to EN 60 529)*
Standards
CE conformity, electromagnetic compatibility according to EN 61326, according to EMC Directive 2014/ 30/ EU
Internal diagnostics
Error 1 at sensor breakageError 2 at sensor short circuit
