LIST OFWARNINGS AND CAUTIONSBOP 1KW OPR 3/19/12 EPAGE WARNING/CAUTION3-20 WARNING: For inductive loads, and especially superconducting magnet type loads,the inherent offset of the BOP in the OFF state may generate significantcurrent in the circuit. A properly rated switch in parallel with a resistormust be connected between the power supply and the load. The switchmust be open and the BOP front panel LCD must read 0V, 0A before re-moving or installing connections between BOP and load.3-20 WARNING: For both inductive loads and constant-current-type active electronicloads when the BOP output is set to OFF, a path is provided for absorbingeither the energy accumulated in the reactance of the load during the ONstate, or energy delivered by an electronic load. This prevents damage tothe load and power supply as well as providing safety for the user. How-ever, In addition to the built-in safety features, constant-current-type ac-tive electronic loads must be adjusted to zero and the BOP front panelLCD must read 0V, minimum current, before handling the power supply-to-load connections.3-21 WARNING: Accessing the BOP after the output is disabled in BATTERY mode is haz-ardous because (1) high current arcing is possible and (2) either the ex-ternal battery voltage, or the voltage (±Voltage Protection max) on theBOP output terminals may be dangerous. Therefore, for battery and con-stant-voltage-type active electronic loads it is recommended that twoproperly rated external switches be installed for safety: one in series withthe battery, and one across the BOP output. After the unit is set to OFF,first open the switch in series with the battery, then close the switchacross the BOP output to ensure safety before handling BOP connec-tions. When connecting the battery, the switch across the output shouldbe opened after the connections are complete and then the switch in se-ries with the battery should be closed. If the constant-voltage-type activeelectronic load is adjusted to zero before handling the power supply-to-load connections, only the switch across the BOP output is required.3-30 WARNING: Be sure that output power is OFF (Standby indicator lit) while connectingmonitoring device. Be sure that connections are secure and that termi-nals are not inadvertently shorted.3-35 WARNING: Dangerous voltages are present at the output terminals: Do not touch!Disconnect load before running this test.4-8 WARNING: The sense resistor will be dissipating full rated current of the BOP. If it ishot to the touch, the sense resistor value, power rating and/or cooling areincorrect; refer to PAR. 4.3 and Table 4-2.4-14 WARNING: The sense resistor will be dissipating full rated current of the BOP. If it ishot to the touch, the sense resistor value, power rating and/or cooling areincorrect; refer to PAR. 4.4 and Table 4-2.
