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Bosch Security Systems | 2007-02 | 9922 141 70691 en
DCN Wireless | Installation and User Instructions | About this manual en | 6
Electro-static discharges
Electro-static discharges can damage electric
components. You must take measures to prevent
electro-static discharges when you touch PCBs (refer to
figure 1).
Conversion tables
Length, mass and temperature are in SI units. Refer to
the data below to change SI units to imperial units.
figure 1: ESD prevention
table 1: ESD prevention
No. Description
1 Safety isolating transformer
2 Distribution supply box
3 Conductive compartment trays
4 Electro-static voltage sensor
5 Cotton overall
6 Conductive floor mat
7 Conductive boots/heel grounding protectors
8 Conductive stool
9 Strap (resistance 0.5 to 1.0 MΩ)
10 Common reference point
11 Conductive bench top
12 Supply ground
312
12
11 10 9 8 7 6
4 5
table 2: Conversion of units of length
1 in = 25.4 mm 1 mm = 0.03937 in
1 in = 2.54 cm 1 cm = 0.3937 in
1 ft = 0.3048 m 1 m = 3.281 ft
1 mi = 1.609 km 1 km = 0.622 mi
table 3: Conversion of units of mass
1 lb = 0.4536 kg 1 kg = 2.2046 lb
table 4: Conversion of units of pressure
1 psi = 68.95 hPa 1 hPa = 0.0145 psi
Note
1 hPa = 1 mbar.
table 5: Conversion of units of temperature
°F
9
5
---
°C 32+⋅=
°C
5
9
---
°F 32–()⋅=