Ahlborn ALMEMO 2490-1, Руководство по эксплуатации

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Appendix
15. APPENDIX
15.1 Technical data
Measuring inputs :
2490-1
1
ALMEMO ® socket suitable
for all ALMEMO ® sensors
2490-2 2 ALMEMO ® sockets, electrically isolated, suitable
for ALMEMO ® sensors
Measuring channels: 4 channels / socket for double sensors, function
channels
2490-2 4 internal additional channels
A/D converter : Delta - sigma, 16-bit, 2.5 / 10 mops, adj. 1 to 100
Sensor power supply : 9 volts, max. 400 mA (with OA2450-U only 80 mA)
Outputs :
2 ALMEMO ® sockets suitable for all output modules
RS485 interface, integrated: OA 2490-I, electr. isol., integrated, socket DC
Signals : RX+, RX-, TX+, TX-, line, maximum 1 km
Analog output, integrated: electrically isolated, socket P0
Variants: 2490-1R02, 2490-2R02
Outputs, options: 0.00 V ...+10.0 V 0.5 mV/digit Load > 100kΩ
0.0 mA ...+20.0 mA 1 µA/digit Load < 500Ω
Accuracy: ± 0.1% of final value
Temperature drift: 10 ppm / K
Time constant: 100 us
Standard equipment :
LCD : Measured value : 5x 7-segment 15 mm, 2x 16-seg-
ment 9 mm
Function 4½ x 7-segment 9 mm, 9 symbols
Operation : 7 silicone keys
Memory 99 measured values on the RAM
Date and time-of-day Software clock, buffered by battery supply
Power supply :
Batteries : 3 AA alkaline batteries
Current consumption : approx. 16 mA (without input and output modules)
With double analog output: approx. 90 mA + 3.5 x I
OUT
External : ALMEMO ® socket DC
Clamp connectors ZA1000-FSV 10 to 30 VDC
Mains adapter : ZA 1312-NA1 230 VAC to 12 VDC, 0.2 A
Adapter cable, electr. isolated ZA 2690-UK 10 to 30 VDC to 12 VDC, 0.25 A
Option U, electr. isolated OA2490-U 10 to 30 VDC, 0.1A
Housing :
(LxWxH) 127 x 83 x 42 mm
ABS (acrylonitrile butadiene styrene),
weight : approx. 260 g
Suitable conditions
Operating temperature : -10 ... +50 °C (storage temperature : -20 ... +60 °C)
Ambient relative humidity : 10 to 90 % rH (non-condensing)
ALMEMO ® 2490 33
(see Manual 2.3)