15. Specifications
Diaphragm monitoring
Dial display
Material
Case
Pressure element
Movement
Bayonet ring
Pointer/dial
Window
15.1 Permissible temperature ranges for Ex versions
Restrictions to temperature ranges
Ambient temperature
Temperature class T6 ... T3
Medium temperature
Gas hazardous application
15.2 Voltage supply
Voltage supply
Supply voltage U+
Maximum voltage U
Maximum current I
i
Maximum power P
(gas)
i
Effective internal capaci-
tance
Effective internal inductance
15.3 Measuring range
Measuring range
Measuring range
Vacuum resistance
Overload safety
WIKA operating instructions, model DMSU21A
1)
via switch contact and dial with red/green areas
Pointer in green range
Pointer in red range
Stainless steel, with solid baffle wall (Solidfront) and blow-out
back
Stainless steel 316L
Stainless steel
Stainless steel
Aluminium
Laminated safety glass
-40 ≤ Ta ≤ +40 °C [-40 ≤ Ta ≤ +104 °F]
Temperature class (maximum ambient temperature)
DC 14 ... 30 V
DC 30 V
i
100 mA
1,000 mW
11 nF
100 μH
See product label
Yes
1-fold
→ Outer diaphragm intact
→ Outer diaphragm defective
EN
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