PMA Digital 280-1, Operating Manual

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Technical data
Digital 280-1 45
Measuring range
Input resistance Accuracy Resolution ( ∅ )
0...20 mA
49 Ω (voltage requirement
≤ 2,5 V)
≤ 0,1 % 0,75 µ A
0...10 Volt
≈ 110 k Ω ≤ 0,1 % 0,4 mV
-2,5...115 mV*
? 1M [ ≤ 0,1 % 4 µV
-25...1150 mV*
? 1M [ ≤ 0,1 % 40 µV
-25...90 mV*
? 1M [ ≤ 0,1 % 4µV
-500...500 mV* ? 1M [ ≤ 0,1 % 40 µV
-5...5Volt ≈ 110 k Ω ≤ 0,1 % 0,4 mV
* high-impedance voltage ranges without break monitoring
Table 3 Current and voltage measuring ranges
Type
Meas.curr. Measuring range Accuracy Resolution ( ∅ )
Pt100
0,2 mA
-200...850°C -328...1562°F ≤ 1 K
0,05 K
Pt1000
-200...850°C -328...1562°F ≤ 2 K
Special
*
0...4500 [ **
≤ 0,1 % 0,005 %
Special 0...450 [ **
Pot.
0...160 [ **
Pot.
0...450 [ **
Pot.
0...1600 [ **
* Characteristic KTY 11-6 (-50...150°C) is factory-set.
** inclusive of lead resistance
Table 2 Resistance transducer measuring ranges
thermocouple type
measuring range accuracy resolution ( ∅ )
L Fe-CuNi (DIN) -100...900°C -148...1652°F ≤ 2 K 0,05 K
J Fe-CuNi -100...1200°C -148...2192°F ≤ 2 K 0,05 K
K NiCr-Ni -100...1350°C -148...2462°F ≤ 2 K 0,1 K
N Nicrosil/Nisil -100...1300°C -148...2372°F ≤ 2 K 0,1 K
S PtRh-Pt 10% 0...1760°C 32...3200°F ≤ 2 K 0,1 K
R PtRh-Pt 13% 0...1760°C 32...3200°F ≤ 2 K 0,1 K
T Cu-CuNi -200...400°C -328...752°F ≤ 2 K 0,025 K
C W5%Re-W26%Re 0...2315°C 32...4199°F ≤ 2 K 0,2 K
D W3%Re-W25%Re 0...2315°C 32...4199°F ≤ 2 K 0,2 K
E NiCr-CuNi -100...1000°C -148...1832°F ≤ 2 K 0,05 K
B
(1)
PtRh-Pt6% 0(100)...1820°C 32(212)...3308°F ≤ 3 K 0,15 K
special -25....75 mV ≤ 0,1 % 0,005 %
(1)
Values for type B are valid from 100°C.
Tabelle 1 thermocouple measuring range