Eddyfi Technologies TSC U41, User Manual

Page: 35 / 72

The Topside Unit
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Safety Trip device
The topside unit features an integral safety trip device that is designed to cut the DC power
supply to the subsea bottle in the event of the umbilical being damaged or cut and exposing
the power wires. The operation is similar to the RCD device in the AC power cable but whereas
the power cable RCD protects the operator from AC power faults, the Safety Trip protects the
diver from potential DC power faults.
The safety trip should be tested when the system is first powered on, is re-configured or at least
daily. To test the safety trip:
x x
Press the Reset button and verify that the blue indicator on the power switch is showing.
x x
Press the Test button and confirm that the blue indicator is removed and the red fault light
is displayed.
x x
Press the Reset button again and check that the red fault light is extinguished and the blue
power button light reappears and remains. If this does not function, or if during operation
the safety trip trips repeatedly, suspend all operations, turn off mains supply and review the
advice in Safety device trips on"Safety device trips", page 58
Power-Supply cord
If another power-supply cord is used, the marked electrical rating should be at least: 120Vac, 5A.
Note: Always refer to the manufacturer's recommendations
Specifications
General specifications
Model: D Model R
Dimensions 36.1 cm x 29 cm x 16.4 cm
Weight 6.4 kg 6.4 kg
Volume 12 L
Power requirement 110-120Vac ±10% 50/60Hz 3A
Overvoltage Category II.
Cooling Passive
Communication Interface Extended Ethernet Serial: RS-485 (Full/Half Duplex),
RS-232
Ethernet 100MB,
Extended Ethernet
Environmental specifications
IP rating Design for IP54
Operating environment Indoor or outdoor use (When adequately protected from the environment)
Operating Temperature 0 - 40ºC
Operating humidity 0 – 95% non-condensing
Operating altitude 0 - 5000 m
Storage Temperature -20 - 60ºC
Storage humidity 0 – 90%, non-condensing
Pollution degree 2
Compliance IEC 61010-1, IEC 60945, IEC 60533, NRTL, CNEMKO, CE, ICES-001, AS/NZS
CISPR 22