16. ANNEX. Ahlborn ALMEMO 2790, MA2790BTFV

Annex

16. ANNEX

16.1 Technical data

Measuring inputs

Measuring channels

A/D converter

Sensor power supply

Option OA2790-RHA

Measuring channels

Measuring ranges one ALMEMO ® socket for all ALMEMO

Delta - sigma, 16-bit, 2.5 / 10 mops, amplification 1 to 100

® sensors

4 channels for double sensors, function channels

6 / 9 / 12 V as required, max 150 mA

Integrated temperature / humidity sensor

4 additional humidity sensor channels (T, RH, TD, AP)

Temperature -20 to +80 °C

Accuracy +5 to +60 °C typical ±0.2 K

+5 to +60 °C maximum ±0.4 K

-20 to +80 °C maximum ±0.7 K

Reproducibility typical ±0.1 K

Humidity 5.0 to 98.0 % RH

Accuracy 10 to 90 % RH max. ±2.0 % RH at 23 °C ±5 K

5 to 98 % RH max. ±4 % RH at 23 °C ±5 K

Hysteresis typical ±1 % RH

Outputs

Interfaces

Wireless link

Standard equipment

LCD

USB with cable ZA1919-DKU5 at ALMEMO

Bluetooth, class 1, with internal antenna

® DC socket

Meas. value

Function

Operation

5x 7-segment, 15 mm

2x 16-segment, 9 mm

4½ x 7-segment, 9 mm, 9 symbols

7 silicone keys

Power supply

Batteries

Current consumption

3 Ni-MH rechargeable batteries (AA size) approx. 14 mA

(with wireless connection, without input and output modules)

External

Mains adapter

Adapter cable, el. isolated:

ALMEMO ® DC socket

ZA 1312-NA10 230 VAC to 12 VDC, 2A

ZA 2690-UK 10...30 VDC to 12 VDC, 0.25 A

Housing 127 x 83 x 42 mm (LxWxH)

Weight approx. 260 g

, ABS,

Operating conditions

Operating temperature -10 to +50 °C

Ambient atm. humidity 10 to 90 % RH

(storage temperature -20 to +60 °C)

(non-condensing)

Bluetooth sensor module ZA1729-BTFS

Power supply

Current consumption via ALMEMO device approx. 25 mA (9 V) (with wireless connection)

Module housing 61 x 20 x 8 mm (LxWxH), ABS

Operating conditions

Operating temperatur -10 to +50 °C (storage temperature -20 to +60 °C)

Ambient atmospheric humidity 10 to 90 % RH (non-condensing)

ALMEMO ® 2790 27