Appendix; Technical Data - Ahlborn ALMEMO 2490-2 Operating Instructions Manual

15. APPENDIX

15.1 Technical data

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