WIKA MTF-1 Einbauanleitung Seite 15

9. Specifications
Specifications
Influence of supply voltage
Long-term drift per IEC 62828-1
Reference conditions
Output signal
Load in Ω
DC 1 ... 10 V
DC 0.5 ... 4.5 V ratiometric
Measuring rate
Signal clamping (optional for analogue signals)
DC 1 ... 10 V
DC 0.5 ... 4.5 V ratiometric
Communication, digital signal
Communication protocol
Supply voltage
Current supply
Dynamic behaviour
Settling time per IEC 62828-1
Switch-on time
Start-up drift
Response time I²C
WIKA installation instructions, model MTF-1
Max. ±0.1 %/10 V (for signal 1 ... 10 V)
≤ ±0.1 % of span
Per IEC 62828-1
→ See product label
≥ 10 k
≥ 4.5 k
> 1 kHz
Zero point DC 0.5 V
Full scale DC 11.5 V
Zero point DC 0.25 V
Full scale DC 4.75 V
The MTF-1 is designed as a slave in the I²C bus and sends
a pressure value to the master when it requests this.
If no interrogation occurs, the MTF-1 switches to the
power-saving "sleep mode".
→ For a detailed description, see "I²C protocol for models
MPR-1 and MTF-1" at www.wika.com.
I²C
→ See product label
DC 1 ... 10 V
DC 0.5 ... 4.5 V ratiometric
I²C
Analogue 1 ms
signals
Digital signals 6 ms with oversampling = 1 (includes
■
the switch-on time)
24 ms with oversampling = 4 (includes
■
the switch-on time)
Analogue 20 ms
signals
Digital signals 2.5 ms
200 ms (only for analogue signals, not valid for I²C)
3 ms with a pulse frequency of ≥ 400 kHz
■
(oversampling = 1)
12 ms with a pulse frequency of ≥ 400 kHz
■
(oversampling = 4)
≤ 3.5 mA
≤ 3.5 mA
≤ 2 mA with
■
measurement
≤ 1 µA in sleep mode
■
15
EN