testo 54 Serie Bedienungsanleitung Seite 32

I I n n p p u u t t f f o o r r r r e e s s i i s s t t a a n n c c e e
Resistance
Resistance
Resolution
Measuremend mode
Current
V V o o l l t t a a g g e e m m e e a a s s u u r r e e m m e e n n t t
Voltage
Voltage
Resolution
Input resistance
F F u u r r t t h h e e r r d d a a t t a a f f o o r r t t h h e e m m e e a a s s u u r r e e m m e e n n t t i i n n p p u u t t
A/D transducer
Measuring speed
Zero adjustment
D D i i g g i i t t a a l l i i n n p p u u t t
Input MPI*
1. Function: Display-Hold
*Multi Purpose Input
Switching level
logical 0
logical 1
Min. pulse duration
The MPI Input is galvanically isolated from the rest of the unit´s electronics
2 2 . . 2 2 . . 3 3 O O u u t t p p u u t t s s
A A u u x x i i l l i i a a r r y y p p o o w w e e r r s s u u p p p p l l y y f f o o r r m m e e a a s s u u r r i i n n g g t t r r a a n n s s d d u u c c e e r r s s / / s s e e n n s s o o r r s s
A A C C v v e e r r s s i i o o n n
D D C C version
The auxiliary power supply is galvanically isolated from the inputs,
the interface and the supply voltage.
Page 6
Ranges
0 ... 400 Ω
0 ... 4000 Ω
14 bit
2 wire, 3 wire and 4 wire
technology, programmable
800 µA at 400 Ω
80 µA at 4000 Ω
Ranges
0 .. +100 mV DC
–100 .. +100 mV DC
14 bit
> 2 MΩ
Dual-Slope
approx.. 1 measurement/sec
automatically
Function of the input depends on set-up
to stop the instantaneous value
0 ... 2 V DC
4 ... 30 V DC
> 5 ms
voltage output 10 V DC ±2%, 30 mA and
voltage output 24 V DC ±15%, 50 mA
voltage output 10 V DC ±2%, 30 mA
Accuracy
± 0,2 Ω
± 2,0 Ω
Accuracy
< 0,1% ± 1 Digit
< 0,1% ± 1 Digit