WIKA F-20, Руководство по эксплуатации

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11
WIKA operating instructions pressure transmitters, models F-20, F-21
EN
2103870.07 10/2021 EN/DE
6. Specifications
Specifications Model F-20 / F-21
Pressure ranges bar 0.1 0.16 0.25 0.4 0.6 1 1.6 2.5 4 6 10 16 25
Over pressure safety bar 1 1.5 2 2 4 5 10 10 17 35 35 80 50
{Vacuum, gauge pressure, compound range, absolute pressure are available}
Materials (other materials see WIKA diaphragm seal program)
■ Wetted parts
- Model F-20 Stainless steel
- Model F-21 Stainless steel O-ring: NBR {FPM/FKM}
■ Case Stainless steel
■
Electrical connection With internal spring clip terminal; cross section max. 2.5 mm 2 , ground terminals, internal for brass
nickel-plated and {stainless steel} and {stainless steel conduit} threaded connection
■ Internal transmission
fluid
Synthetic oil
Power supply U +
DC
11 ... 30 V
(14 ... 30 V with signal output 0 ... 10 V)
Signal output and
maximum ohmic load R
A
R
A
in
Ohm
4 ... 20 mA, 2-wire R
A
≤ (U
B
– 10 V) / 0.02 A
0 ... 10 V, 3-wire R
A
> 10 k
Test circuit signal / max.
load R
A
Only for instruments with 4 ... 20 mA signal output. R
A
< 15 Ohm with 20 mA
Adjustability zero/span % ± 5 using potentiometers inside the instrument
Response time
(10 ... 90 %)
ms
≤ 1
1)
Insulation voltage DC 500 V
Accuracy 2)
% of
span
≤ 0.5
≤ {0.25} for measuring ranges ≥ 0.25 bar
Non-linearity % of
span
≤ 0.2 (BFSL) according to IEC 61298-2
Non-repeatability % of
span
≤
0.1
1-year stability % of
span
≤ 0.2 (at reference conditions)
6. Specifications