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18. APPENDIX
18.1 Technical data
Measuring inputs : 2590-2A/4AS
2/4 ALMEMO
®
sockets for ALMEMO
®
connectors
Measuring channels : 2/4 primary channels, electrically isolated,
3 additional channels per input for double sensors
and function channels
A/D converter : Delta-sigma, 16-bit, 2.5/10mops, Reinforcement 1.38
Sensor power supply : 6V/9V12V, 0.4A (with mains adapter : 12 V)
Outputs : 2 ALMEMO
®
sockets for all output modules
Standard equipment :
Display: Graphics, 128 x 64 pixels, 8 rows of 4 mm
Operation : 7 keys (of which 4 softkeys)
Memory : 100 measured values in RAM,
MMC memory connector
(2590-4S only): 500-KB EEPROM (60000 to 100000 meas. values)
Date and time-of-day : Real-time clock buffered (10ppm) with device battery
Power supply : External 6 ... 13 VDC ALMEMO
®
socket DC
Batteries : 3 AA alkaline batteries
Mains adapter : ZA 1312-NAx 230 VAC to 12 VDC, minimum 1 A
Adapter cable, electr. isol. ZA2690-UK
10...30 VDC to 12 VDC, 0.25 A
USB Data Cable Supply ZA1919-DKU9 9V, 0.2A
Current consumption without Active mode : approx. 12 mA (at 4.5V)
input and output modules : With illumination : approx. 42 mA (at 4.5V)
Sleep mode approx. 0.05 mA
Housing : (LxWxH) 127 x 83 x 42 mm ABS,
weight : approx. 260 g
Suitable conditions
Operating temperature -10 ... +50 °C (storage temperature -20 to +60 °C)
Ambient relative humidity : 10 ... 90 % rH (non-condensing)
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