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Transmitter ALMEMO® 2490-english

Transmitter ALMEMO® 2490-english

Transmitter ALMEMO® 2490-english

Product catalog summary
Overview: The document provides technical specifications and features of the ALMEMO® 2490 measuring instrument, which includes programmable analog outputs, multiple measuring inputs, and a variety of supported sensors and functions.
Specifications:
  • Analog Output: Programmable 2 x 10 V or 20 mA with a 16-bit DAC, electrically isolated.
  • Measuring Inputs: Supports 1 or 2 inputs via ALMEMO® connectors, with over 65 standard measuring ranges including thermocouples and temperature/humidity sensors.
  • Precision: Class B with a measuring rate of up to 10 measurements per second.
  • Power Supply: 10 to 30 V DC, electrically isolated, with options for AC power via a mains unit.
  • Digital Interface: USB and RS232 interfaces available via ALMEMO® cables.
Features:
  • Display and Keypad: For easy programming and operation.
  • Sensor Functions: Includes zeroing, calibration, and storage of max/min values.
  • Environmental Conditions: Refer to general technical data for specifics.
Installation and Accessories:
  • Installation: Options for DIN rail or magnet mounting.
  • Calibration: DAkkS accredited calibration available, meeting DIN EN ISO/IEC 17025 standards.
  • Accessories: Includes clamping plugs, relay cables, and limit value cables.
Additional Information: The document notes that technical changes may occur and provides order numbers for different configurations of the ALMEMO® 2490 transmitter.
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Catalog excerpts

Transmitter ALMEMO® 2490-english-1

Universal ALMEMO® transmitter 2490 with analog output 1 or 2 measuring inputs. Built-in analog output Technical features • Analog transmitter with built-in double analog output. • Analog output range and measuring channel assignment programmable via keyboard. • Basic measuring instrument with over 65 standard measuring ranges. Good measuring accuracy, measuring rate up to 10 measurements/s. Support of ALMEMO® connectors with multipoint adjustment, special linearization and special ranges. Measuring functions: Measured value, zeroing, sensor calibration, max. and min. value storage. Full sensor and instrument programming via interface Technical data Precision class B, see general technical specifications Measuring rate 10 and 2.5 mops Measuring ranges over 65 measuring ranges, inter alia thermocouples, Pt100, Pt1000, NTC temperature / humidity, Measuring inputs via ALMEMO® connector electrically isolated with semiconductor relay (50 V). Additional channels 4 function channels internal to the device for power supply operation Analog outputs via ALMEMO® socket P0: 2 x 10 V or 20 mA (programmable), both outputs with common ground. 0.0 to 10.0 V 0,5 mV/digit, load > 100 kOhm. 0.1 % of meas. v. +0.1 % of final v Temperature drift: 10 ppm/K. Digital outputs via ALMEMO® sockets A1 and A2 for PC cable USB or RS232 and relay cable Power supply via ALMEMO® socket DC 10 ... 30 V DC, electrically isolated to analog outputs and measuring input Standard equipment LCD screen, keypad Environmental conditions see general technical data 11/2025 • We reserve the right to make technical changes.

 Open the catalog to page 1
Transmitter ALMEMO® 2490-english-2

Analog transmitter, 1 measuring input Double analog output transmitter, 2 Measuring inputs analog output 11/2025 • We reserve the right to make technical changes. Power supply: (via ALMEMO® socket DC) 100 to 240 V AC via mains unit 12 V, 1.5 A, with ALMEMO® connector ZA1312NA12 10 to 30 VDC, maximum 80 mA, electrically isolated, via ALMEMO® clamp connector ZA1000FSV included in delivery Digital interface: (via ALMEMO® socket A1) USB interface via ALMEMO® USB cable ZA1919DKU RS232 interface via ALMEMO® RS232 cable ZA1909DK5 Limit value contact: (via ALMEMO® socket A2) (see chapter „Output modules“)...

 Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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