HP T750 User Manual

Troubleshooting 22
Output Load Level LED is red or flashing red
Action:
1. Remove one or more load devices to reduce the power requirements.
2. Initiate a self-test ("Initiating a self-test" on page 16).
3. If the condition persists, verify that the load devices are not defective.
Battery Charge LED is red
Action:
If the Power LED is flashing green:
a. Save your work, and power down the UPS ("Powering down the UPS" on page 16).
b. After the blackout or brownout is over, power up the UPS ("Powering up the UPS" on page 15).
c. Allow the UPS batteries to charge for 24 hours.
If the Power LED is green:
a. Continue to let the batteries charge until the Battery Charge LED is green.
b. Initiate a self-test ("Initiating a self-test" on page 16).
Battery Warning LED is amber
Action:
1. Allow the UPS batteries to charge for 24 hours.
2. Initiate a self-test ("Initiating a self-test" on page 16).
Site Wiring Fault LED is red
Action: Contact a qualified electrician to be sure that:
• The utility power receptacle is grounded.
• There is a ground wire in the UPS power cord.
• The line and neutral wires are not reversed in the wall outlet.

HP T750 Specifications

General

Output Voltage	230V
Input Voltage	230V
Interface Port	USB
Waveform Type	Stepped approximation to a sinewave
Nominal output voltage	230V
Nominal input voltage	230V
Battery Type	Sealed lead-acid (VRLA)
Topology	Line Interactive
Input frequency	50/60 Hz
Output Connections	IEC 320 C13
Input connection type	IEC 320 C14
Typical recharge time	8 hours
Audible alarm	Yes
Operating Temperature	0 - 40 °C
Approvals	CE
Frequency	50/60 Hz
Control panel	LED status indicators
Operating Relative Humidity	5% to 95% non-condensing