KM 251 en Product Description and Accessories
V1.0 21
4.8 Data of contact manometer for MBS (optional)
The contact manometer have a reed switch with electrically isolated contact output, maxi-
mum switching power 10 W for DC current or 10 VA for AC current. The maximum swit-
ching voltage is 100 V, maximum switching current 0.5 A.
The switching function is set up as an NC contact, i.e. if the diaphragm breaks, the current
circuit is interrupted.
The manometer has a 2 m long cable.
4.9 Installation Location
4.9.1 Space Required for Operation and Maintenance
The pump must be placed where it is freely accessible for operation and mainte-
nance work.
Maintenance work must be carried out regularly on the dosing head and the valves.
• Provide sufficient space for removing the dosing head and the valves.
4.9.2 Permissible Ambient Influences
Caution
Risk of malfunction or damage to the device!
The installation site must be under cover!
Pumps with electronics are only suitable for indoor use!
Do not install outdoors!
4.9.3 Underground
The pump must be mounted on a flat surface.
Inputs and Outputs
Outputs
Current 0 - 20 mA Maximum load, 350 ohms
Error signal
maximum ohmic load
50V DC / 75V AC, 0.5 A
Stroke signal Contact time/stroke 200 ms
Pre-empty signal
maximum ohmic load
50V DC / 75V AC, 0.5 A
Permissible
ambient
temperature
0 °C to + 40 °C (for an installation height up to 1000 m over NN
Permissible
humidity
relative humidity: 70% at 40 °C, 90% at 35 °C
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