Version February 2020
22
EN
HST 300 Smart User’s Manual
O . M . I . S . A . S r l
Via Verga 9/11
20845 Sovico (MB), Italy
rent failure or if the current decreases by more than 15%
per second for 3 seconds.
11.2.7 Excess Current
The output current value is in excess; possible causes: short-
circuit in the heater coil or the welding cable. During the
start stage the upper abort threshold equals 1.18 times the
value at start, in any other case the upper limit depends
on the load value and is calculated as the current at start
plus 15%.
11.2.8 Emergency Off
The welding process has been interrupted by pressing the
STOP/RESET key.
11.2.9 Heater Coil Error
The dynamic current value during welding differs by more
than 15% from the required value, indicating a short-circuit
in the heater coil.
11.2.10 Power Supply Failure at Last Welding
The last welding is incomplete. The welding unit was dis-
connected from the power supply voltage while it was
in progress. To go on using the unit, this error has to be
acknowledged by pressing the STOP/RESET key (see also
Sect. 9.4).
12 Technical Specifications
Operating Range
Fittings sized up to 160 mm
Nominal Voltage
230 V
Frequency
50 Hz / 60 Hz
Power
1680 VA, 80% duty cy.
Ingress Protection
IP X4
Primary Current
max. 16 A
Ambient Temperature
– 20°C to + 60 °C
(– 4°F to + 140°F)
Output Voltage
8 V - 48 V
Max. Output Current
65 A
Memory for Welding Rep. 500 reports
Data Interface Port
USB v 2.0 (480 mbit/s)
(see also the information on the data ports in Sect. 8)
Tolerances:
Temperature
± 5 %
Voltage
± 2 %
Current
± 2 %
Resistance
± 5 %
