Pagina 44 di 93 Codice doc. 1080622209
Versione: 2022_02_21
Salvo modifiche tecniche
Pulse outputs for volume:
The pulse value for volume is always determined by
the second-to-last place
of the volume display.
Example:
Display: 0,000 m³
-> pulse value: 10 l/pulse (0,01 m³/pulse)
1.6.1 Technical data pulse outputs
Pulse outputs class
OA (electronic switch) according to EN 1434-2:2016
Connecting cable length
1 m
Switching voltage, maximum
30 V
Switching current, maximum
27 mA
Contact resistance (on) max.
74 Ω
Contact resistance (off) min.
6 MΩ
Closure time
100 ms
Interval between pulses
100 ms
1.6.2 Pin assignments 4-wire cable
Color
Connection
Yellow
IA1
Green
IA1
Brown
IA2
White
IA2
2 Retrofitting with an Additional Communication Interface
During installation of the retrofitting module observe the ESD requirements according to EN 61340-5-1.
This means that on location an antistatic wrist strap with an integrated 1 MΩ resistor has to be used which must be
connected to a proper spot: This is either a grounded pipe or – only with an appropriate adapter! – a Schuko plug
grounding socket. The antistatic wrist strap must be worn tightly on the skin of the wrist.
2.1 Retrofitting S3 with an additional communication interface (optional)
We also offer a retrofittable meter to which communication interfaces can be added later.
To retrofit such a meter with an additional communication interface the calculator´s adhesive seal has to be
destroyed and the device´s calculator to be opened. Use a screwdriver with a wide tip (4 - 5 mm) and carefully
press in the two round predetermined breaking points above the cable feedthroughs (see picture 1).
Then insert the screwdriver into one of the two openings at an angle of approx. 45° and carefully lift the handle up
to approx. 90° (see picture 2). The upper housing piece of the calculator is then no longer latched on this side.
Repeat this with the other opening. Now the upper housing piece can be taken off.
