Technical Data; General; Mechanical; Housing's Window - Videotec NTC Manuel D'instructions

11 Technical data

11.1 General

Constructed from electropolished stainless steel
(austenitic alloy stainless steel, corrosion and heat
resistant according to the following standards):
• AISI 316L
• UNI 6900-71: X 2 Cr Ni Mo 17 12 2
• DIN 17006: X 2 Cr Ni Mo 17 13 2
• N° werkstoff 1.4404
• AFNOR: Z2 CND 17-12
• BSI: 316S11
The screws utilised are in austenitic alloy stainless
steel, corrosion and heat resistant according to the
following standards:
• ISO: 7380
• AISI: 316
• ISO quality: A4
• Resistance class ISO: from 50 to 70

11.2 Mechanical

Cable glands: 3xPG13.5 (nickel-plated brass for
external connections)
External body polishing
9mm (0.3in) thick front and back flange
O-ring gaskets
Dimensions (WxHxL): 182x164x460mm
(7.2x6.5x18.1in)
Unit weight: 7.5kg (16.5lb)
16

11.3 Housing's window

Germanium window
• Diameter: 35mm
• Thick: 1.5mm (0,06in)
• Diameter: 55mm (2.1in)
• Thick: 2mm (0.07in)
• External treatment: Antiscratch (Hard Carbon
Coating - DLC), Antireflection
• Internal treatment: Antireflection
• Spectral range: From 7.5μm up to 14μm
• Medium transmittance (from 7.5μm up to
11.5μm): 90%
• Medium transmittance (from 11.5μm up to 14μm):
77%
Ge 2mm, AR/AR+DLC
80
60
40
20
0
8 9
7.5 8.5 9.5
Fig. 21

11.4 Electrical

Input voltage: 24Vac
Current consumption: 1.25A
Power consumption:
• 20W, with heating switched off
• 30W, with heating switched on
Heater: Ton 15°C±3°C (59°F ±5°F), Toff 22°C±3°C
(72°F±5°F)
Dimensions of the power cables: 1.5mm² (16AWG)
10 11 12 13
10.5 11.5 12.5
MNVCNTC_1637_EN
13.5