HOME > Manufacturer
Shenzhen Dongfangwanhe Instrument Co.,ltd
level sensorsdisplay for building security

H.S CODE: 90261000
Model:

Export area:North America

Introduction:
liquid level sensors for building security
WH311 LEVEL PRESSURE TRANSMITEER WATERPILOT WH6DISPLAY
Your benefits

?High mechanical resistance to overload and aggressive media

?High-precision, robust ceramic measuring cell with long-term stability

?Climate proofed sensor thanks to completely potted electronics and 2-filter pressure compensation system
?4 to 20 mA output signal with integrated overvoltage protection

?Simultaneous measurement of level and temperature with optionally integrated Pt100 temperature sensor
?Usage in drinking water: KTW, NSF, ACS

?Approvals: ATEX, FM and CSA

?Marine certificate: GL, ABS

?Extensive range of accessories provides complete measuring point solutionsDocument conventions Safety symbols

Symbol Meaning

DANGER!
DANGER This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in

A0011189-DE seriousor fatal injury.

WARNING!
WARNING This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in

A0011190-DE seriousor fatal injury.

CAUTION!
CAUTION This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in

A0011191-DE minoror medium injury.

NOTICE!
NOTICE This symbol contains information on procedures and other facts which do not result in per-

A0011192-DE sonalinjury.


Electrical symbols

Symbol Meaning

Direct current

A terminal to which DC voltage is applied or through which direct current flows.

A0018335

Alternating currrent

A terminal to which alternating voltage is applied or through which alternating current

A0018336 flows.

Direct current and alternating current

? A terminal to which alternating voltage or DC voltage is applied.

A0018337 ? A terminal through which alternating current or direct current flows.

Ground connection

A grounded terminal which, as far as the operator is concerned, is grounded via a

A0018338 grounding system..

Protective ground connection

A terminal which must be connected to ground prior to establishing any other connections.

A0018339

Equipotential connection

A connection that has to be connected to the plant grounding system: This may be a A0011201 potential equalization line or a star grounding system depending on national or company
codes of praxis.


Symbols for certain types of information

Symbol Meaning

Tip

Indicates additional information.

A0011193

Reference to page

Refers to the corresponding page number.
Process connection ? Mounting clamp
? Extension cable mounting screw with G 1?" A or NPT 1?" thread

Outer diameter 22 mm (0.87 in) 42 mm (1.65 in) max. 29 mm (max. 1.14 in)

Extension cable PE, PUR, FEP (? ? 22)

Seals ? FKM Viton FKM Viton ? FKM Viton
? EPDM 1) ? EPDM ?)
Measuring ranges ? Nine fixed pressure measuring ranges in bar, mH2O, psi and ftH2O, ? Seven fixed pressure measuring
from 0 to 0.1 bar to 0 to 20 bar (0 to 1 mH2O to 0 to 200 mH2O/ ranges in bar, mH2O, psi and
0 to 1.5 psi to 0 to 300 psi/0 to 3 ftH2O to 0 to 600 ftH2O) ftH2O, from 0 to 0.1 bar to 0 to 4
? Customer-specific measuring ranges; factory-calibrated bar (0 to 1 mH2O to 0 to 40
mH2O/0 to 1.5 psi to 0 to 60 psi/
0 to 3 ftH2O to 0 to 150 ftH2O)
? Customer-specific measuring
ranges; factory-calibrated

Overload Up to 40 bar (600 psi) Up to 25 bar (375 psi)

Process temperature range C10 to +70 C (+14 to +158 F) 0 to +50 C (+32 to +122 F)

Ambient temperature range C10 to +70 C (+14 to +158 F) 0 to +50 C (+32 to +122 F)

Maximum measured error 0.2 % of upper range value (URV)

Supply voltage 10 to 30 V DC

Output 4 to 20 mA

A0015484