Vega DSGH, Operating Instructions Manual

Page: 37 / 100

DSGH Installation and Operation Guide 35
Installation
Power
The AC power source voltage input is 100 – 230 VAC ± 10% (90 – 250
VAC) at 50 ... 60 Hz, at 15 W (or 25 W with optional heater) maximum
power consumption.
AC power must not be shared with transient-producing loads. Use an
individual AC lighting circuit. Supply a separate earth ground.
The DC power source voltage input is 20 – 60 VDC (< 100 mV,
1 ...1,000 Hz ripple) at 15 VA maximum power consumption. DC power
cable can be part of a single cable 4-wire hookup, or can be separate
from output signal cable. (See “Output current loop” section.)
Use wire for power per local code. Use supply wire suitable for 40 °C
above surrounding ambient temperature. All field wiring must have
insulation suitable for 250 volts or higher.
Switch for CE compliance
For CE compliance, install a power line switch

1 m from the operator’s
control station.
Output current loop
Output signal is 4 mA ... 20 mA into 250 – 800

. Pin 13 is + and Pin 14
is -. HART communication protocol (BEL202 FSK standard) is available
on these connections. The output is isolated to standard ISA 50.1 Type
4 Class U.
Note: Not all connections are required for operation. For example,
Terminal 10 (-6V, Auxiliary Input Power) may not be used with
newer electronics.
The power input terminals are not polarity-sensitive.
Caution: Do not apply power until thoroughly checking all wiring.
Note: HART signal may not operate with some isolating barriers or
other non-resistive loads.