ALMEMO® MEASURING INSTRUMENTS 2490 - AHLBORN - #2

Text version of the page

ALMEMO® MEASURING INSTRUMENTS 01.15 10/2008 We reserve the right to make technical changes. 01 www.ahlborn.com ALMEMO® 2490-1 compact measuring instrument with more than 65 measuring ranges, with just one measuring input, with memory for 100 measured values, plus interface and option with internal analog output ALMEMO® 2490-2 with 2 measuring inputs Technical features : .. Universal measuring instrument with 1 or 2 ALMEMO® input sockets, 8 channels, 4 internal function channels (e.g. differential values) .. Memory sufficient for 100 measured values, can be called up and viewed in the display .. High-resolution A/D converter, 16-bit, 10 mops .. More than 65 standard measuring ranges .. Support for ALMEMO® connectors with multi-point calibration, special linearization, and special measuring ranges .. Generously dimensioned 2-row static 7 / 16 segment display including units .. Easy and convenient to operate by means of 7 keys .. Measuring functions : Measured value, zero-setting, sensor adjustment, saving of maximum / minimum values, memory for 100 measured values, cold junction compensation, and temperature compensation .. Test functions : Segment monitoring, range monitoring, Technical data : Measuring inputs 2490-1 1 ALMEMO® input socket 2490-2 2 ALMEMO® input sockets electrically isolated with semiconductor relays 50V Channels Per sensor, max. 4 channels (sensor-type-specific, measuring and function channels), only 2490-2: plus 4 internal function chan. A/D converter delta-sigma, 16-bit For technical data see page 01.05. Measuring ranges as on page 01.06, but Volts DC -2.0 to +2.6 V Milliamperes DC -26 to +26 mA Connector supply Battery / mains: 9 V, max. 150 mA Option U 9 V, maximum 70 mA Outputs 2 ALMEMO® sockets for all interface cables, version V6 with option OA2490I RS485 interface internal, electrically isol., via socked DC with option OA2490Rx only 1 ALMEMO® socket P0 for internal analog output Standard equipment LC display 7 segments Measured value 5 char., 15 mm Function 4½ characters, 9 mm 16 segments Units 2 characters, 9 mm 9 symbols Keypad 7 silicone keys Power supply 10 ... 30V DC not electr. isol. Battery 3 AA alkaline batteries Current consumption approx. 20 mA without input modules Mains adapter ZA1312NA1 230 VAC to 12 VDC, 200 mA Housing ABS (maximum 70 °C) (LxWxH) 127 x 83 x 42 mm Other general data see Technical Data, page 01.05 Extent of the delivery Includes 3 AA alkaline batteries, operating instructions, and manufacturer’s test certificate Universal measuring instrument ALMEMO® 2490-1 1 measuring input, memory for 100 measured values, LC display, 7 keys, interface via 2 ALMEMO® output sockets A1, A2, and 1 ALMEMO® socket DC for mains adapter Order no. MA24901 Universal measuring instrument ALMEMO® 2490-2 like 2490-1, plus 2 measuring inputs Order no. MA24902 Universal measuring instrument ALMEMO® 2490 with ALMEMO® interface : .. 2 ALMEMO® output sockets for all interface cables, network cables, trigger / relay cables .. Complete sensor and device programming. .. ALMEMO® socket DC for mains adapter. .. Option with electrically isolated internal RS485: via ALMEMO® socket DC. .. Option with electrically isolated internal analog output : ALMEMO® socket P0 for analog output (scalable with keyboard). Options : Power supply, electrically isolated, 9 to 30 VDC, 80 mA, including ALMEMO® connector for socket DC OA2490U RS485 interface, built-in, including Option U OA2490I Analog outputs, electrically isolated , built-in, including ALMEMO® connector for socket P0 Single analog output, 0 to 10 V (0.5 mV / digit) OA2490R2 Single analog output, 0 to 20 mA (1 ìA / digit) OA2490R3 Double analog output, 0 to 10 V (0.5 mV / digit) OA2490R22 Double analog output, 0 to 20 mA (1 ìA / digit) OA2490R32 IP54 protection (if water-proof connectors are used) OA2490W Accessories (see ALMEMO® 2490-1L/-2L page 01.14) Top hat rail mounting ZB2490HS Rubberized impact protection,gray ZB2490GS2 Magnetic fastening ZB2490MH Mains adapter 12 V, 200 mA, with ALMEMO®connector ZA1312NA1 DC adapter cable 10 to 30 VDC, 12 V / 0.25 A, electrically isolated ZA2690UK Analog output cable, -1.25 to +2.0 V, 0.1 mV / digit, V6 ZA1606RK V24 data cable, electr. isol., maximum 115.2 KB ZA1909DK5 USB data cable, electr. isol., maximum 115.2 KB ZA1919DKU Ethernet data cable, electr. isol., maximum 115.2 KB ZA1945DK Instrument case ZB2490TK