Vega VEGAPULS 66 Operating Instructions Manual page 60

10 Supplement
Display and adjustment module
Voltage supply and data transmission
Indication
Adjustment elements
Protection rating
Ʋ unassembled
Ʋ mounted into the sensor without cover IP 40
Ambient temperature - Display and
adjustment module
Material
Ʋ Housing
Ʋ Inspection window
Voltage supply
Operating voltage U
Ʋ Non-Ex instrument
Ʋ Ex ia instrument
Ʋ Ex-d-ia instrument
Operating voltage U
Ʋ Non-Ex instrument
Ʋ Ex ia instrument
Ʋ Ex-d-ia instrument
Permissible residual ripple
Ʋ < 100 Hz
Ʋ 100 Hz ... 10 kHz
Load resistor
Ʋ Calculation
Ʋ Example - Non-Ex instrument with
U = 24 V DC
B
Potential connections and electrical separating measures in the instrument
Electronics
Ground terminal
Galvanic separation between electronics and metal housing parts
Ʋ Reference voltage
Electrical protective measures
Protection rating
Housing material
Plastic
60
B
- illuminated display and adjustment module
B
Version
Single chamber
Double chamber
through the sensor
LC display in dot matrix
4 keys
IP 20
-20 ... +70 °C (-4 ... +158 °F)
ABS
Polyester foil
14 ... 36 V DC
14 ... 30 V DC
20 ... 36 V DC
20 ... 36 V DC
20 ... 30 V DC
20 ... 36 V DC
U < 1 V
ss
U < 10 mV
ss
(U - U )/0.022 A
B min
(24 V - 14 V)/0.022 A = 455 Ω
Not non-floating
Galvanically connected with the metal process fitting
500 V AC
IP-protection class
IP 66/IP 67
IP 66/IP 67
VEGAPULS 66 • 4 ... 20 mA/HART - two-wire
NEMA protection
Type 4X
Type 4X