8
Technical data common to all models
6. Technical data common to all models
6.1
Hardware specifications
Touchscreen technology
Projected capacitive, multi-touch
Real-time clock back-up
battery
3V, 7mAh lithium, rechargeable, not user-replaceable, model
VL1220
Flash
4GB (HMs705, HMs707, HMs710)
8GB (HMs715, HMs721)
RAM
1GB (HMs705, HMs707, HMs710)
2GB (HMs715, HMs721)
Hardware clock
Clock/calendar with back-up battery
Accuracy real-time clock
(at 25°C)
<100ppm
6.2 Environmental conditions
Operating temperature
(surrounding air tempera-
ture)
-20 to +55°C (vertical installation)
EN 60068-2-14
Storage temperature
-30 to +80°C
EN 60068-2-1
EN 60068-2-2
EN 60068-2-14
Operating and storage
humidity
5–85% RH not-condensing
EN 60068-2-30
Vibrations
5–9Hz, 7mm
p-p
9–150Hz, 1g
EN 60068-2-6
Shock
±50g, 11ms, 3 pulses per axis
EN 60068-2-27
Degree of protection
IP67 (requires appropriate accessories and
cables)
EN 60529
