WIKA LF-1 Operating Instructions Manual page 21

9. Specifications
Specifications
Accuracy (pressure sensor)
(at reference conditions)
Accuracy (temperature sensor)
Accuracy after turndown 5:1 via
HART
®
Non-linearity (per IEC 61298-2)
Non-repeatability
Temperature error
Long-term stability
(per DIN 16086:2006-01)
Reference conditions
Ambient temperature
■
Atmospheric pressure
■
Humidity
■
Power supply
■
Mounting position
■
Ingress protection
Insulation voltage
Resistance to overvoltage
Reverse polarity protection
Short-circuit resistance
WIKA operating instructions submersible pressure sensor, model LF-1
≤ ±1 % of span
≤ ±0.5 % of span (option)
-10 ... +80 °C [14 ... 176 °F]: ±1.8 K
-30 ... -10 °C [-22 ... +14 °F]: ±3.0 K
-40 ... -30 °C [-40 ... -22 °F]: ±4.5 K
≤ ±1.25 % of scaled span
≤ ±0.75 % of scaled span (option)
≤ ±0.5 % of span BFSL
≤ ±0.25 % of span BFSL (option)
≤ 0.1 % of span
≤ 0.2 % of span (with voltage output and cable length >100 m [325 ft])
see table "Temperature error"
Measuring range > 0 ... 0.1 bar: ≤ ±0.1 % of span/year
Measuring range ≤ 0 ... 0.1 bar: ≤ ±0.2 % of span/year
15 ... 25 °C [59 ... 77 °F]
860 ... 1,060 mbar [86 ... 106 kPa /12.5 ... 15.4 psig]
45 ... 75 % r. h.
DC 24 V with current output
DC 5 V with voltage output
Calibrated in vertical mounting position with protection cap thread facing downwards.
IP68
DC 850 V
Option of increased overvoltage protection for lightning strikes: DC 50 V
DC 40 V
U+ vs. U-
S+ vs. U-
EN
21