Manual
Weld Seam Detection System R4000 SND40
for Tubes, Cans and Drums
B0059001 / Rev. 2.3
Technical data
ROLAND ELECTRONIC GmbH · Otto-Maurer-Str. 17 · DE 75210 Keltern · Phone +49 (0)7236-9392-0 · Fax +49 (0)7236-9392-33
107
9.17 Sensor NS24-EC30x185NT10-100-S
Technical data
Application:
Round material (ferrous tubes)
Diameter of tubes:
75 - 1500mm (1.57 - 59in)
Wall thickness:
Depending on material
Measuring principle:
Magnetical leakage flux / Eddy current
Width of measuring patch:
20mm
Ambient temperature:
10 - 40°C (50 - 104°F) during operation
Class of protection:
IP54
Weight:
63kg (139lbs)
Material of enclosure:
Aluminum, nickel plated
Sensor cable:
KNS9S and CECM18S-G
Air gap between pole boots
and tube surface
2.0 – 2.05mm in new condition
1.0 – 2.5mm is permissible range
The air gaps must be within the permissible range.
If the value gets – due to wearing - outside the
permissible range, the sensor needs to be repaired
(see also chapter 10 “Maintenance”).
Air gap between sensor
element and tube surface
2.0 – 2.05mm in new condition
1.0 – 2.5mm is permissible range
Number of rubber mounts
8
9.18 Cooling water for NS24-EC30 sensors
Connections at sensor
Connecting material
Copper tube
Diameter
10mm outer Ø, 8mm inner Ø
The cooling water for the NS24-EC30 sensors must meet the following specifications:
TEMPERATURE, PRESSURE, THROUGHPUT
Temperature
min. 5°C, max. 30°C at incoming connection
Pressure
max. 2bar
Throughput
min. 5l/min
HARDNESS, CONDUCTIVITY, pH VALUE
Total hardness
max. 8°dH
Conductivity
50 –
600μS/cm
pH value
> 7.5 (7.8 at 8° dH / 8.1 at 6° dH / 8.3 at 4° dH)
INGREDIENTS
Suspended substances
Aggressive carbonic acid
Ammonia
Nitrite
Iron
Manganese
Sulphate
Chloride
COD (chemical oxygen demand)
Microbiologic growth
- number of colonies
- sulfate reducing agents
None
must not be detected
must not be detected
< 1mg/l
< 0.3mg/l
< 0.05mg/l
< 250mg/l
< 250mg/l
< 40mg/l
< 1000/ml
must not be detected
ADDITIVES
Copper corrosion inhibitor
Nalco 73199, concentration 3mg/l
Oxidizing biocides
- Halogens (free halogen)
- Ozone
- Hydrogen peroxide
- Peracids
< 0.15mg/l (as Cl
2
), only in combination with copper corrosion inhibitor
none
none
none
Pos: 93 /Schweissnaht/ Senso ren/NS24/NS24-EC30x 185NT10-100-S Te chnische Zeichnung @ 0\mo d_1188208808156_501.do cx @ 4593 @ 3 @ 1