Type 8703

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1.

General Technical Data

Product properties

Material

Block

Aluminium or stainless steel

Body

Metal

Seal

FKM, EPDM

Dimensions

Detailed information can be found in chapter “3. Dimensions” on page 4.

Total weight

approx. 500 g (Aluminium)

LED display

Indication for power, limit and error

Performance data

Nominal flow range (Q

Nom)

10 ml

N/min…80 lN/min (N2)

Detailed information can be found in chapter “6.2. Flow characteristic” on page 7.

Measuring range

1:50 (2…100 %), higher measuring range on request

Max. operating pressure

10 bar (145 psi)

Measuring accuracy

± 0.8 % o. R. ± 0.3 % F. S. (after 1 min. warm-up time)

Repeatability

± 0.1 % F. S.

Response time (t95 %)

< 300 ms

Electrical data

Operating voltage

24 V DC

Power consumption

5 W

Voltage tolerance

± 10 %

Residual ripple

< 2 %

Electrical connection

Plug D-Sub 9 pin

Medium data

Operating medium

Neutral, non-contaminated gases, others on request

Calibration medium

Operating gas or air (with conversion factor)

Medium temperature

- 10 °C…+ 70 °C

(- 10 °C…+ 60 °C for oxygen)

Process/Port connection & communication

Port connection

NPT ¼, G ¼, screw-in fitting or sub-base, others on request

Fieldbus option

PROFIBUS DP, CANopen

Digitale Outputs

Relay outputs

1. Limit (Q

Nom almost reached)

Load capacity: 25 V, 1 A, 25 VA

Digital inputs

Not connected

Digital (communication) interface

Digital via RS485 (Half-duplex or full duplex), RS422

Environment and installation

Installation position

Horizontal or vertical

Ambient temperature

- 10 °C…+ 50 °C

Degree of protection

IP40

Accessories

Software-Tool

Mass Flow Communicator

1.) The nominal flow value is the max. flow value calibrated which can be measured.

The nominal flow range defines the range of nominal flow rates (full scale values) possible.

2.) Index N: Flow rates referred to 1.013 bar and 0 °C. Alternatively there is an

Index S available which refers to 1.013 bar and 20 °C.