Analogue Multiplexer; Inputs; Digital Input - 2289A; Output - PR electronics 2289 User Manual

ANALOGUE MULTIPLEXER:

At a deactivated digital input, input A x P1 is sent to the output. At an activated
digital input, input B x P2 is sent to the output. P1 and P2 are scaling factors for
the two inputs.

INPUTS:

ANALOGUE INPUTS - 2289A
The A and B inputs can be programmed according to your choice to receive
current signals in the range 0...20 mA (for instance 4...20 mA), or voltage signals
in the range 0...10 VDC.
PT100 INPUT - 2289B
Input A is a linearised Pt100 temperature input in the range -99...+850°C with a 3-
wire connection. The measurement range can be scaled via the front keys acc. to
your choice. As 2289A, input B is an analogue current / voltage input.

DIGITAL INPUT - 2289A

By way of JP6 the 2289 signal calculator can be programmed to NPN (pull up to
24 VDC), or PNP (pull down to 0 VDC). Min. pulse length is 50 ms.

OUTPUT:

Analogue standard current / voltage output of 0/4...20 mA / 0/2...10 VDC. The
output span can be set to special current / voltage signals acc. to your choice.
Max. load on the current output is 600 Ω. Min. load on the voltage output is 500
kΩ.
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ELECTRICAL SPECIFICATIONS:

Specifications range:-
-20 to +60°C
Common specifications:
Supply voltage .......................................... 19.2...28.8 VDC
Internal consumption ................................ 2.4 W
Max. consumption .................................... 2.7 W
Signal / noise ratio ................................... Min. 60 dB
Signal dynamics, input .............................. 20 bit
Signal dynamics, output ........................... 16 bit
Proportional band (XP) ............................. 0.01...999%
Gain ........................................................... 0.1...10000
Integrating time (TI) ................................... 0...999 s
Differentiating time (TD) ............................. 0...999 s
Response time ......................................... < 60 ms
Updating time ............................................ 20 ms
Calibration temperature ............................ 20...28°C
Temperature coefficient ............................. < ±0.01% of span/°C
Linearity error ............................................ < ±0.1% of span
Effect of supply voltage change ............... < ±0.002% of span/%V
Auxiliary voltages:
Referen ce voltage ..................................... 2.5 VDC ±0.5% / 15 mA
EMC immuni ty influence ........................... < ±0.5%
Relative air humidity .................................. < 95% RH (non-cond.)
Dimensions (HxWxD) (D is excl. pins) ....... 80.5 x 35.5 x 84.5 mm
Protection degree ...................................... IP50
Weight ....................................................... 130 g
Electrical spe cifications - INPUT:
Current input:
Measurement range .................................. 0...20 mA
Min. measurement range (span) ............... 4 mA
Max. offset ................................................ 50% of selec. max. value
Input resistance ......................................... Nom. 50 Ω
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