Wika 732.15.160 Manual do Utilizador descarregar pdf (Página 11)

Specications Models 891.44 and 892.44 (Ex Version)

Power supply UB

for Non-Ex version DC

12 V < U

B ≤ 30 V

for Ex version see the section ‚Ex protection‘!

Permissible residual ripple

% of span/10 V

≤ 0.1

Supply voltage eect % ss

≤ 10

Output signal 4 … 20 mA, 2-wire system

Permissible max. load R

A for Non-Ex versions, Model 891.44:

A ≤ (UB - 12 V) / 0.02 A with RA in Ω and UB in Volt

for Ex versions, Model 892.44:

A ≤ (UB - 14 V) / 0.02 A with RA in Ω and UB in Volt

Eect of load % of span

≤ 0.1

Output signal adjustment

Zero point, electrical A

djustment of zero point through brief bridging of terminals 5 and 6,

or using the „scale selection switch“ option, selectable via button

Scale selection 4 scales selectable via BCD switch

Linearity % of span

≤ 1.0 (limit point calibration)

Permissible

ambient temperatures °C -40 … +80, -40 … +60 with oxygen

Compensated temp. range °C -40 … +80

Temperature coecients in

compensated temp. range

Mean TK of zero

% of span/10 K

≤ 0.3

Mean TK of span

% of span/10 K

≤ 0.3

Ex protection according to EC-Type Examination Certicate

BSV 08 ATEX E 018 X for Model 892.44

Ex certication EEx II 2G EEx ia IIC T6

Conformity specications

Power supply U

i DC 14 … 30 V

Short circuit rating I

i mA max. 100

Rating P

i W max. 1

Internal capacitance C

i nF 12

Internal inductance L

i mH negligible

Medium temperature °C -40 … +80, -40 … +60 with oxygen

Ambient temperature °C -40 … +60 (T6)

CE-Conformity interference emission and immunity per EN 61326

Wiring L-connector (screw terminals up to 2.5 mm²)

Wiring protection protected against reverse polarity and overvoltage

Ingress protection IP 65 per EN 60529 / IEC 529

Wiring details,

2-wire

11265191.07 12/2012 GB/D/F/I

Earth, connected

to case 2)

B+/Sig+

Terminals 3, 4, 5 and 6: only for internal

application

0V/Sig-

WIKA operating instructions dierential pressure gauge models 712.15.160, 732.15.160

8. Transmitter for level measurement

1) Only possible within 30 seconds of connecting the supply voltage

2) This connection must not be used

for equipotential bonding. The

instrument must be incorporated in

the equipotential bonding via the

process connection.

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