Vega POINTRAC 31 - Page 54

54
11 Supplement
POINTRAC 31 • 8/16 mA/HART - four-wire
43388-EN-180322
L
Fig. 21: Data of the input variable
L Measuring range (range in which the switching point must lie)
Measuring range 46 mm (1.8 in), 152 mm (6 in) or 304 mm (12 in)
Analogue input
Ʋ Input type 4 … 20 mA, passive
Ʋ Internal load 250Ω
Switching input
Ʋ Type of input - Open Collector 10 mA
Ʋ Type of input - Relay contact 100 mA
Output variable
Output signals
8/16 mA/HART - active; 8/16 mA/HART - Multidrop
Terminal voltage passive 9 … 30 V DC
Shortcircuit protection Available
Potential separation Available
Fault signal, current output (adjustable)
22 mA, < 3.6 mA
Max. output current 22 mA
Starting current ≤3.6mA
Load
Ʋ 8/16 mA/HART - active <500Ω
Ʋ 8/16 mA/HART - intrinsically safe <300Ω
Damping (63 % of the input variable) Is calculated automatically by the instrument
HART output values
Ʋ PV (Primary Value) Switching status
Ʋ SV (Secondary Value) Electronics temperature
Ʋ TV (Third Value) -
Ʋ FV (Fourth Value) Count rate
Relay output
Output
Relayoutput(SPDT),oatingspdt