fafnir ME 5 Operating Instructions Manual

Art. Nr. 207019 – date of issue 03 / 04

FAFNIR GmbH z Bahrenfelder Str. 19 z D-22765 Hamburg z Telefon: [phone] z Telefax: [phone]

Overfill Prevention Sensor Testing Device

Type ME 5

Operating Instructions

Overfill prevention sensors have to
be tested regularly. The overfill
prevention sensor testing device
type ME 5 guarantees an optimal
and safe testing of sensors as per
TRbF 511.

Function:

The overfill prevention sensor
testing device (GWG) is heated up
by the intrinsically safe electric
current of the tester. The heating
time is measured, assessed and
shown on the LC-display.
The switching-off time is treated in
the same way. The QSS code is
recorded and also displayed (ME 5
with product recognition).

Overfill Prevention Sensor Testing Device
Type ME 5 with Coupling Type FP 903
and Charging Unit.

T

Since the overfill prevention sensor testing device
type ME 5 has its own instrinsically safe output circuit
it can be used for testing all overfill prevention sensor
testing devices certified as per TRbF (also the ones
applied in zone O). The ME 5 itself has to be operated
outside the ex-zone. The coupling type 903 required
for connecting the GWG is equipped with the
corresponding cable length.

For checking the product recognition the ME 5 has to
be equipped with a coupling type FP 903 and the
special software.
The ME 5 is equipped with Ni-MH accumulators.
These accumulators must be charged with the FAFNIR
charging unit only. Charging can only take place in a
non-operative condition. Empty accus will recharge
within appr. 14 hours.

Art. Nr. 207019 – date of issue 03 / 04

FAFNIR GmbH z Bahrenfelder Str. 19 z D-22765 Hamburg z Telefon: [phone] z Telefax: [phone]

Operating Instructions GWG Tester Type ME 5

Action LC-Display Remark

Connect GWG
Switch on ME 5 GWG-Test V ...

FAFNIR GmbH

Software­Version-No. is
displayed



<continue>

GWG connected?

m <yes>

No product
recognition

or

Super unleaded
– 1 -

GWG is not
equipped with
product
recognition

Display of each
product

 <continue>

Measurement in
progress
Uk = --,- V

PTC-resistor
voltage is
displayed

Heating time ---,- s Heating time is

displayed

 <continue>

Heating time okay If heating time is

<5 s or >180 s
error message
appears

 <continue>

Switching-off time
measured?

m <yes> or
o

<no>

Liquid prepared? If NO is pushed,

switch off device

m <yes>

Simultaneously
immerse in liquid

 <continue>

and push START

START

Switching-off time

--,- s

Switching-off
time is displayed

 <continue>

GWG okay
switching-off time <2s

If switching-off
time is >2s, an
error message
will appear

LC-Display Meaning

Charge battery! The batteries are weak and should

be charged as soon as possible.
However, measurements can still
be made. You could only charge
the device when it is switched-off!

Please switch off! If this message appears, before a

measurement was made, the
batteries are too empty so that a

proper measurement is impossible.
Error!
plug defective

Incorrect product recognition;

clean plug and repeat

measurement with firmly attached

coupling.
GWG defective!
–interruption-

The GWG or the cable for the

connection fittings has an

interruption.
GWG defective!
–short circuit-

The GWG or the cable for the

connection fittings has a short

circuit.
GWG defective!
heating time too
short

The GWG is defective, the heating

time must be >5s.

GWG defective!
heating time too
long

The GWG is defective, the heating

time must be <180s. If there was

still liquid in the sensor tip, this can

prolong the heating time. Switch

off device and repeat measurement

after appr. 1 min.
GWG defective!
switching-off time
>2s

The switching-off time must be

<2s. The measurement can be

repeated since it is possible that

the immersion of the GWG and the

pushing of the <START> button

were not carried out

simultaneously. If the switching –

off time is >2s during the 2nd test,

too, the GWG is defective.

Technical Data

Operating Data:

Ambient temperature: 0 °C to +50 °C
Protection type-IP 30
Supply voltage: 24 V, 7, 2 V DC
Maximum values:
U0 d 26 V, I0 d 166 mA
P

0

d 1.000 mW
Nom. values: U d 19 V, I d 120 mA
P d 570 mW

TÜV 03 ATEX 2141

0032

II (2) G [EEx ia] IIB

Materials:

Coupling type 903: PVC
Coupling type FP 903: PA6.6
Connecting cable: PVC sheathed
copper wire
Housing: ASB

Dimensions:

Coupling:  60 mm x 137 mm
Connecting cable: 2 x 0.75 mm

2

Housing: 196 x 100 x 40 [mm]

Accessories:

Charging unit for ME 5
Plastic case with moulded tray