Type 8177

3 | 9

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1.

General technical data

Product properties

Material

Please make sure the device materials are compatible with the fluid you are using.

Detailed information can be found in chapter “3.1. Chemical Resistance Chart – Bürkert resistApp” on page 5.

Non wetted parts

Housing

PBT, stainless steel 316L (1.4404)

Cover

PC transparent

Seal between housing and cover

EPDM

Cable gland

PA

Blind plug

PA

Ground terminal

Stainless steel 316Ti/316L (1.4571/1.4435)

Wetted parts

Process connection

PVDF

Transducer

PVDF

Process seal

EPDM

Dimensions

Detailed information can be found in chapter “4. Dimensions” on page 6.

Weights

1.8…4 kg (depending on process connection and housing)

Measuring variable

Distance between lower edge of the transducer and product surface. Detailed information

can be found in chapters “5.1. Measurement deviation diagram” on page 7.

Measuring range

• 0.4…8 m (for liquids)

• 0.4…3.5 m (for solids)

Beam angle1.)

11°

Damping (63 % of the input value)

0…999 s, adjustable

Adjustment time2.)

> 3 s (dependent on the parameter adjustment)

Product accessories

Display

LCD in full dot matrix. Detailed information can be found in chapter “7.4. Ordering chart

accessories” on page 8.

Performance data

Blocking distance

0.4 m

Measurement deviation

± 4 mm (measuring distance > 0.2 m)

Detailed information can be found in chapter “5.1. Measurement deviation diagram” on

page 7.

Measuring range resolution

Max. 1 mm

Measuring frequency

55 kHz

Measuring cycle time

> 2 s (dependent on the parameter adjustment)

Temperature coefficient

0.06 %/10K (average temperature coefficient of the zero signal - temperature error)

Vibration resistance

Mechanical vibrations with 4 g and 5…100 Hz (tested according to the guidelines of Ger-

man Lloyd, GL directive 2)

Electrical data

Operating voltage (U

n)

• Without display/configuration module:

– 14…35 V DC

– 14…30 V DC (Ex ia instrument)

• With display/configuration module:

– 20…35 V DC

– 20…30 V DC (Ex ia instrument)

Power source (not supplied)

Limited power source according to UL/EN 60950-1 standards or limited energy circuit

according to UL/EN 61010-1 §9.4

Output signal

4…20 mA/HART

Signal resolution

1.6 µA

Load resistor

(U

n - Umin.)/0.022 A

Fault signal

Current output: mA value unchanged, 20.5 mA, 22 mA or < 3.6 mA (adjustable)

Max. output current

22 mA

Residual ripple (at DC)

• < 100 Hz: Uss < 1 V

• 100 Hz…10 kHz: Uss < 10 mV