Technical data
(see also Manual, Section 2.2)
Measuring inputs:
two ALMEMO
®
socket for ALMEMO
®
sensors
Channels :
4 channels / sensors maximum
(measuring and function channels, depending on
sensor type) 4 function channels in device
Sensor power supply :
Battery : 7 to 9 V, max. 100 mA
Mains adapter : approx. 12 V, max. 100 mA
Measuring rate :
2.5 measuring operations per second , continuous
System accuracy :
±0.05% of measured value ±2 digits
Temperature drift :
0.01% / K
Cold junction compens. : ± 0.2 K ± 0.01 K /ºC (-30 to +80 ºC)
Outputs :
1 ALMEMO
®
socket for analog output module
or interface cable
Equipment :
Display :
6.5-digit 7-segment, 2-digit 16-segment, 12 mm
A/D converter :
delta-Sigma ± 15/16 bit
2.5 measuring operations per second
Microprocessor :
NEC 78F0078
Power supply :
7 to 13 V DC, not electrically isolated
Mains adapter :
ZB 2290-NA, 230 V AC to 12 V DC, 200 mA,
electrically isolated
Adapter cable, el. isol. :
ZB 2290-UK, 10 - 30 V DC. to 12 V DC, 250 mA
Current consumption :
approx. 4.5 mA (without input and output modules)
Housing :
180 x 85 x 33 mm,
ABS (acrylonitrile butadiene styrene)
high impact resistance (max. 70 °C)
Operating temperature : -10 ... +60 ºC
Storage temperature :
-30 ... +60 ºC
Ambient rel. humidity :
10 to 90 % (non-condensing)
Delivery includes :
Measuring instrument ALMEMO
®
2390-3
Operating instructions ALMEMO
®
2390-3
ALMEMO
®
Manual plus AMR software on CD
Product overview
Order no.
Universal measuring instrument ALMEMO
®
2390-3
2 inputs, 12 channels, LCD, and 5-key keypad,
connection for mains supply unit, analog output, interface
MA 2390-3
Mains adapter, 12 V DC, 200 mA
ZB 2290-NA
DC adapter cable, 10 to 30 V DC, 12 V / 250 mA,
electrically isolated
ZB 2290-UK
ALMEMO
®
V24 data cable, electrically isolated,
maximum 115.2 kbaud, 1 mA
ZB 1909-DK5
ALMEMO
®
analog output module
- 1.25 to 2.00 V, 0.1 mV / digit
ZA 1601-RK
ALMEMO
2390-3
23
Appendix