1 - FlowVision GmbH

Electronic Flow Meter FC01-Ex-CA (compressed air/gas) 

Description 

The FC01-Ex-CA has been designed to provide monitoring, detection 

and indication of flow speed, flow volume and medium temperature of 

gases and powders, also suitable for use as a mass flow meter. 

The FC01-Ex-CA meets the requirements of EC directive 94/9/EG 

(ATEX 100 a) in combination with the calorimetric monitoring head 

CST-Ex-.. 

The flow meter has been designed for use outside of explosive 

atmospheres. Only CST-Ex is installed in Zone 0 or Zone 20. 

NEW 

1 

FC01-Ex-CA 

EC type test certificate to EN 60079-0: 2006 and EN 60079-11: 

2007, type of protection II (1) GD [Ex ia] IIC 

Features 

Dimensions FC01-Ex-CA (surface mounted) 

● 

● 

● 

● 

● 

● 

Menu driven (keypads) 

LCD-display (2 x 16 digits) of: 

- indication of actual flow rate, volume flow or mass flow, 

medium temperature; 

- bargraph status indication of limit contacts, actual flow rate/ 

flow quantity and/or medium temperature; 

- directions for parameter assignment, configuration, diagnosis 

and error correction; 

- peak value indication 

Two scalable analogue outputs 

peak value memory (MIN + MAX) 

Two freely selectable limit contacts 

Quantity related pulse output - counter connection/transistor 

drive. 

90 

3.54 

PG11 / M20x1.5 

PG13.5 

(blue) 

120 

4.72 

PG9 / M16x1.5 

PG11 / M20x1.5 

ø5 

.197 

Ordering information 

Type 

FC01-Ex 

Flow Meter, surface mounted (IP54) 

Version 

CA for compressed air and gases 

Input voltage 

U1 DC 24 V (19...32 V) 

Signal outputs 

R2 2 relay outputs (2 limit value) 

T4 4 transistor outputs (2 limit value + 2 status 

indication) 

Analogue outputs 

V1 0/1- 5 Volt 

V2 0/2-10 Volt 

C1 0/4-20 mA (self-powered, physically isolated) 

Certification 

T5 approval to EC directive 94/9/EG 

(ATEX 100 a) *) 

Specification of medium 

xxx 

226 

8.90 

133 

5.24 

240 

9.45 

FC01-Ex - CA - U1 R2 V1- T5 ... ordering example 

This is a metric design and millimeter dimensions take precedence ( mm ) 

inch 

*) for detailed information please see section 0. 

Issue A(270308) www.e-t-a.com 

1 - 127


Technical data 

1 

Flow Meter FC01-Ex-CA 

with CST-Ex 

calorimetric monitoring head 

General data 

Media 

air (other media upon request) 

Measuring function 

flow rate / volume flow 

mass flow / temperature 

Display 

2 x 16-digit LCD-display 

Parameter assignment, calibration by: 

keypads 

Temperature range (electronic control unit in circulating air) 

+10 °C...+43 °C (ambient temperature) 

Electrical data 

Input voltage DC 24 V (19...32 V) 

Current consumption (V V = 24 V DC) 

170 mA / 200 mA*) 

Analogue output (flow and/or temperature) 

0/4-20 mA or 0/2-10 V or 0/1-5 V 

Signal outputs 2 relay outputs (2 limit values) 2 change-over contacts AC/DC 50 V / 1 A / 50 W 

4 transistor outputs (2 limit values + 2 status) open collector outputs DC 36 V/150 mA/1.5 W 

Flow measurement 

Measuring range 

(display range) air 0.7...50 Nm/s (0.0...75 Nm/s), see table next page 

(related to velocity available at sensor) air < ± 5 % of final value MW (higher accuracy on request) 

Accuracy (4) 

Repeatability (1) air < 1 % of measured value 

Temperature drift 

(electronic control unit) air 0.1 %/°K/of final value 

Response delay air (2) 3 s 

Temperature measuring range -40 °C...+75 °C 

measurement accuracy ± 1.5 % of final value 

Mechanical data (surface-mounted housing) 

Degree of protection 

Materials 

Housing dimensions (LxWxH) 

Mass 

IP54 

polycarbonate 

240 x 120 x 90 mm 

1750 g 

Cables voltage supply 3 x 0.75 mm 2 (AWG 18) 

to monitoring head 

LiYCY 4 x 2 x 0.75 mm 2 (AWG 18), light blue 

analogue output 2 x LifYCY 2 x 0.25 mm 2 (AWG 24) 

signal outputs LifYCY 4 x 2 x 0.2 mm 2 (AWG 24) 

equipotential bonding ≥ 1.5 mm 2 (H07V-k 1.5 mm 2 ) (AWG 26) 

Max. cable length to monitoring head for safety reasons limited to 200 m 3) 

* With output C2, the current consumption may be up to 230 mA ± 10 %. 

(1) at constant temperature and flow conditions, and stable thermal conductivity 

(2) Delay with the switch point set to 10 m/s and the flow at 20 m/s, after a sudden complete stop. 

(3) Mind the equipotential bonding, shield resistance max. 1 Ω (see connection diagram) 

(4) The accuracy values were determined under ideal conditions: 

- symmetrical complete flow profile 

- correct mounting in the pipe 

- inlets and outlets according to EN ISO 5167-1 

1 - 128 

www.e-t-a.com Issue A (270308)

8 

8 

8 

8 


Block diagram 

Flow measurement range (refering to the medium air) 

Sensor 

interface 

Calorimetric 

monitoring 

head 

Input voltage: 

Keyboard/display: 

User interface 1: 

User interface 2: 

Controller system: 

Sensor interface: 

Power supply DC 

Micro controller 

system 

Keyboard and display 

DC 19…32 V 

User 

interface 1 

User 

interface 2 

keypads 

LC display 

2 x 16 digits 

relay outputs: 2 limit values 

transistor outputs: 2 limit values + 

1 error indication + 

1 busy or quantity-related 

pulse output 

(software selected) 

analogue outputs 

current or voltage 

signal processing 

I/O - controlling 

monitoring 

parameter memory 

calorimetric monitoring head 

The flow measurement range is determined by the inner pipe 

diameter (see table). It can be calculated with the following equation: 

Q = V N x A R 

Q (Nm 3 /h - flow quantity 

V N (m/h - average standard velocity 

A R (m 2 ) - pipe cross section 

inner pipe diameter measuring range display range 

D in mm in Nm 3 /h in Nm 3 /h 

20 57 84 

30 127 190 

40 226 339 

50 353 530 

60 509 763 

70 693 1039 

80 905 1357 

90 1145 1717 

100 1414 2120 

150 3180 4771 

200 5655 8482 

250 8836 13253 

Setting range for internal pipe diameter: 10.0 mm...999.9 mm 

Velocity range: 

0...50 Nm/s (75 Nm/s) 

Accuracy: ±5 % of measured value/±0.5 % of final value 

Reproducibility: ±1 % of measured value/ ±0.5 % of final value 

(5 % final value - 100 % final value) 

Temperature drift: ±0.1 %/K/final value 

1 

Connection diagram FC01-Ex-CA for relay and analogue outputs V1, V2, C1 

LiYCY 4x2x0,75 mm 2 

SGND 

R(Tdiff)-LO 

R(Tdiff)-HI 

IS 

AGND 

R(Tref)-LO 

R(Tref)-HI 

R(HEIZ)-HI 

R(HEIZ)-LO 

black 

pin k 

gray 

red 

blue 

white 

brown 

green 

yellow 

* recommended 

** E/ -emitter terminal 

C/ -collector terminal 

*** identical with 9002/77-093-040-001 

# SGNDA1 

SGNDA2 }ungrounded 

Apply shield on one side only. 

3 

4 

9002/22-032-300-111 

4 3 

2 1 

3 

4 

/PA 

USLKG 5 

8x0.14 mm 2 single conductor 

black: 0.5 mm 2 

9002/22-093-040-001 *** 

9002/22-093-040-001 *** 

1 

2 

1 

2 

9002/13-199-225-001 

4 3 

2 1 

AC/DC 24 V 

AC/DC 24 V 

pink 

grey 

red 

blue 

white 

black 

brown 

green 

yellow 

blue 

brown 

yellow/green 

0.5 mm 2 

1 2 3 4 5 6 7 9 10 1 2 3 1 2 3 4 

3 

2 

1 

XV XSK XTF 

M 

equipotential bonding system 

XAS XAO XAH 

1 2 3 4 5 6 7 

1 2 3 4 5 6 7 

1 2 3 4 5 6 7 

/LIM2 

LIM2COM 

LIM2 

SGNDL2 

/LIM1 

LIM1COM 

LIM1 

SGNDL1 

ANA2GND 

ANAO2 

SGNDA2 # 

SGNDA1 # 

ANA1GND 

ANAO1 

** 

LiYCY 3x0.38 mm 2 * 




Analogue outputs: 

V1 

V2 

C1 

2x0.75 mm 2 * 

≥1.5 mm 2 

equipotential bonding monitoring head CST-Ex 

1.5 mm 2 - 4 mm 2 


1 - 129

8 

8 

8 

8 

8 

8 

8 

8 

8 


Connection diagram FC01-Ex-CA for transistor and analogue outputs V1, V2, C1 

LIM1 

** 

C/ + 

1 

LiYCY 4x2x0.75 mm 2 

SGND 

R(Tdiff)-LO 

R(Tdiff)-HI 

IS 

AGND 

R(Tref)-LO 

R(Tref)-HI 

R(HEIZ)-HI 

R(HEIZ)-LO 

black 

pink 

grey 

red 

blue 

white 

brown 

green 

yellow 

* recommended 

** E/ -emitter terminal 

C/ -collector terminal 

*** identical with 9002/77-093-040-001 

# SGNDA1 

SGNDA2}ungrounded 

Apply shield on one side only. 

yellow 

3 

4 

3 

4 

/PA 

8x0.14 mm 2 single conductor 

black: 0.5 mm 2 

9002/22-093-040-001 *** 

1 

2 

9002/22-032-300-111 

4 3 

2 1 

9002/22-093-040-001 *** 

USLKG 5 

1 

2 

9002/13-199-225-001 

4 3 

2 1 

AC/DC 24 V 

AC/DC 24 V 

pink 

grey 

red 

blue 

white 

black 

brown 

green 

yellow 

blue 

brown 

yellow/green 

0.5 mm 2 

1 2 3 4 5 6 7 9 10 1 2 3 1 2 3 4 

3 

2 

1 

XV XSK XTF 

M 

equipotential bonding system 

XAS XAO XAH 

1 2 3 4 5 6 7 

1 2 3 4 5 6 7 

1 2 3 4 5 6 7 

LIM1 E/ - 

LIM2 C/ + 

LIM2 E/ - 

BUSY/PULSE C/+ 

BUSY/PULSE E/ - 

ERROR C/ + 

ERROR E/ - 

ANA2GND 

ANAO2 

SGNDA2 # 

SGNDA1 # 

ANA1GND 

ANAO1 

SGND 

LifYCY 4x2x0.2 mm 2 



Analogue outputs: 

V1 

V2 

C1 

2x0.75 mm 2 * 

≥1.5 mm 2 

equipotential bonding monitoring head CST-Ex 

1.5 mm 2 - 4 mm 2 

Connection diagram recommended connection of pulse output 

Electronic signal processing 

Electromagnetic pulse counter 

XAS XAO XAH 

XAS XAO XAH 

1 

2 

3 

4 

5 

6 

7 

1 

2 

3 

4 

5 

6 

7 

1 

2 

3 

4 

5 

6 

7 

1 

2 

3 

4 

5 

6 

7 

1 

2 

3 

4 

5 

6 

7 

1 

2 

3 

4 

5 

6 

7 

8 

Zener voltage 

i C 

t L t ON t 

U C 

U V 

i L ≤ 10 mA 

U V 

U C 

i C 

U V

FC01-Ex-CA - Monitoring Head CST-Ex 

Description 

Thread-mounted calorimetric monitoring head 

Thread-mounted Ex approved calorimetric monitoring head for Flow 

Meter FC01-Ex-CA. For use in hazardous areas in equipment group II, 

category 1 (zones 0 and 20). 

Features 

● Medium temperature -40 °C...+75 °C 

● material monitoring head: 

- stainless steel 1.4571 

- Hastelloy C4 2.4610 

- Titanium G7 3.7235 

● EC type test certificate to EN 50014, EN 50020, EN 50281-1-1, 

EN 50284 and EN 1127-1 type of protection II 1/2 GD T 130 

°C IP67 EEx ia IIC T4. 

CST-Ex-.. 

with Ex approval 

1 


Type No. 

CST-Ex 

Thread-mounted monitoring head with calorimetric sensors 

Process connection 

11 thread size G1/2A 

Medium 

A air 

S other media (please enquire) 

Material of areas exposed to medium 

M1 stainless steel 1.4571 (standard) 

M2 Hastelloy C4 2.4610 

M6 Titanium G7 3.7235 

Length of shank/thread 

L08 27.5 mm (standard) 

L10 36 mm 

Electrical connection 

E20 round connector 

with gold-plated contacts 

Certification 

T5 approval to EC directive 

94/9/EG (ATEX 100 a)*) 

Specification of medium 

xxx 

CST-Ex - 11 W M1 L08 E20 T5 - ... ordering example 

*) for detailed information please see section 0. 


Type of head 

Thread/rated dia. 

Length of shank 

Length of sensor 

Suitable for pipe diameter 

Suitable for media 

Temperature range -40...+75 °C 

(medium + monitoring head zone T1) 

Temperature range -30...+75 °C 

(monitoring head zone T 2 ) 

Pressure resistance (1) 

thread-mounted 

G1/2A 

27.5 mm, 36 mm 

14 mm 

DN 20...DN 50 (...L08...) 

DN 20...DN250 (...L10...) 

gases, depending on the resistance 

of material and Ex approval (ignitable 

media: see Ex approval) 

100 bar/1470 PSI 

Degree of protection (connector) (2) IP67 

Material 

stainless steel 1.4571/AISI 316 Ti 

Hastelloy C4 2.4610 

Connector 

copper tin (CuZn) 

Cable to electronic control unit LiYCY 4 x 2 x 0.75 mm 2 (AWG 18), 

light blue 

(1) Admissible operating pressure to DIN 2401, measured at max. temperature (= max. 

medium temperature). 

(2) with mating connector 

Dimensions 

CST-Ex-11xxxL08xxx 

27.5 

1.08 

G1/2A 

14 

.551 

undercut 

DIN 3852/B 

SW27 

1.06 in. 

T 1 

80.5 T 2 

41.5 

3.17 

1.63 

36 

1.42 

CST-Ex-11xxxL10xxx 

10 14 

.394 .551 

G1/2A 

ø18 

.709 

undercut 

DIN 3852/A 

SW27 

1.06 in. 

T , T - temperature zones 

1 2 


inch 


1 - 131

FC01-Ex-CA - Cable type and accessories 

Cable type 17 with connectors 

Description 

Cable between Flow Meter FC01-Ex-CA and calorimetric monitoring 

head CST-Ex. 

1 

● Connection to monitoring head by means of 12-pole 

round connector 

● Connection to FC01-Ex-CA: wire end ferrules for connection to 

ex-barriers 


Accessories 

Cable type 17 

Features: paired control line, fully shielded, light-blue insulation, 

for intrinsically safe systems, electrical and thermal 

properties at +20 °C 

Conductor resistance: 

< 25 Ω/km 

Insulation resistance: 

> 200 MΩ/km 

Capacity 

(wire/wire/grounded shield) 110 pF/m ± 20 % 

Operating voltage 

(VDE 0812) 

max. 500 V AC 

Test voltage 

(wire/wire/shield) 

1200 V AC 

Max. load 

10 A 

Wave impedance 

f > 100 kHz / 60...70 Ω 

Inductance 

wire/wire 

0.7 mH/km 

wire/shield 

0.5 mH/km 

Capacitive coupling (800 Hz) 0...1200 pF/100 m 

Temperature range: 

-10 °C...+80 °C (operation) 

-30 °C...+80 °C (transport and storage) 

12-pole round connector 

(without cable, for individual wiring by customer) 

0Z112Z000172 

ø25 


inch 

Caution: Standard warranty cover will be invalidated if the correct 

E-T-A monitoring head/control unit connecting cable is not 

used. 

51 


Type between calorimetric monitoring heads CST-Ex and FC01-Ex- 

CA 

Do + Ka type 17 PVC-insulated cable, type LifYCY 4x2x0.75mm 2 (AWG 18) 

12-pole round connector + wire end ferrules 

Available cable lengths 

...m 2 m, 3 m, 5 m, 8 m, 10 m, 15 m, 20 m, 25 m, 

30 m, 40 m, 50 m, 60 m, 70 m, 80 m, 90 m 

100...200 m (in 10 m steps) upon request 

(longer lead times) 

Do + Ka type 17 - 2 m 

ordering example 

1 - 132 


FC01-Ex-CA - Certificate 

PTB ATEX Test Certificate 

1 


1 - 133

FC01-Ex - Certificate 

EC type test certificate FC01-Ex-CA 

1 

1 - 134 

www.e-t-a.com 

Issue A (270308)



1 

Issue A(270308) 

www.e-t-a.com 

1 - 135


EG-Declaration of Conformity CST-Ex 

1 

1 - 136 




1 


1 - 137


EC type test certificate FC01-Ex 

1 

1 - 138 




1 


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EG-Declaration of Conformity FC01-Ex-CA 

1 

1 - 140

1 - FlowVision GmbH

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