VEGA VEGADIF 65 4 … 20 mA User Manual
Page 70
70
10 Supplement
VEGADIF 65 • 4 … 20 mA
36236-EN-130417
Adjustment range of the zero/span adjustment relating to the nominal measuring range:
Ʋ Pressure value zero
-120 … +120 %
Ʋ Pressure value span
zero + (-220 … +220 %)
7)
Adjustment level
Adjustment range of the min./max. adjustment relating to the nominal measuring range:
Ʋ Percentage value
-10 … +110 %
Ʋ Pressure value
-120 … +120 %
8)
Adjustment flow
Adjustment range of the zero/span adjustment relating to the nominal measuring range:
Ʋ Pressure value zero
-120 … +120 %
Ʋ Pressure value span
-120 … +120 %
9)
Recommended max. turn down
15 : 1 (no limitation)
Nominal measuring ranges, measurement limits and smallest spans to be calibrated
Nominal range
Lower measurement
limit
Upper measuring limit
Smallest adjustable
span
10 mbar (1 kPa)
-10 mbar (-1 kPa)
+10 mbar (+1 kPa)
0.25 mbar (25 Pa)
30 mbar (3 kPa)
-30 mbar (-3 kPa)
+30 mbar (+3 kPa)
0.3 mbar (30 Pa)
100 mbar (10 kPa)
-100 mbar (-10 kPa)
+100 mbar (+10 kPa)
1 mbar (100 Pa)
500 mbar (50 kPa)
-500 mbar (-50 kPa)
+500 mbar (+50 kPa)
5 mbar (500 Pa)
3 bar (300 kPa)
-3 bar (-300 kPa)
+3 bar (+300 kPa)
30 mbar (3 kPa)
16 bar (1600 kPa)
-16 bar (-1600 kPa)
+16 bar (+1600 kPa)
160 mbar (16 kPa)
40 bar (4000 kPa)
-40 bar (-4000 kPa)
+40 bar (+4000 kPa)
400 mbar (40 kPa)
Reference conditions and actuating variables (according to DIN EN 60770-1)
Reference conditions according to DIN EN 61298-1
Ʋ Temperature
+18 … +30 °C (+64 … +86 °F)
Ʋ Relative humidity
45 … 75 %
Ʋ Air pressure
860 … 1060 mbar/86 … 106 kPa (12.5 … 15.4 psig)
Determination of characteristics
Limit point adjustment according to IEC 61298-2
Characterstic curve
Linear
Calibration position of the measuring cell Vertical, i.e. upright process component
Influence of the installation position to the
zero point
≤ 4 mbar
10)11)
A position-dependent zero-point shift can be corrected (see also chapter "Adjust parameter").
Position of the span in the measuring
range
Based on the zero point
Diaphragm material
316L, Alloy C276, gold rhodium plated, Monel
7)
Values less than -1 bar cannot be set.
8)
Values less than -1 bar cannot be set.
9)
Values less than -1 bar cannot be set.
10)
Max. value with horizontal process component. Specification applies to the basic version without chemical seal.
The value doubles with instruments with inert oil.
11)