LCD Series Off-Line UPS

Features:
1) Internal CPU control
2) Advanced PWM technology for inverter output
3) AVR function
4) Low current switch control technology to extend the life of the switch
5) Thermal battery change technology, convenient for the user's to
change battery (DH-500A/B, DH-500CA/CB)
6) Inner equipped charger of constant current and voltage, advanced
battery management and low voltage protection system
7) RJ45/11 for telephone, fax and modem circuit protection
8) Smart RS232 interface for automatic file saving and power-off
functions at your computer
9) Advanced battery management system with automatic re-charging
function
10) Special protection against AC/DC overload and short-circuit
protection against inversion state with high reliability
11) Display by LCD

Specifications:
1) Models: DH-500A, DH-500B, DH-500CA, DH-500CB, DH-1000CA,
DH-1000CB, DH-1000A, DH-1000B
2) Max capacity: 500VA(300W), 425VA(250W), 1000VA(600W), 1200VA
(720W)
3) Rated capacity: 315VA(200W), 315VA(200W), 800VA(480W), 1000VA
(600W)
4) Input commercial power range: 145VAC-280VAC
5) AVR range: 155VAC-275VAC
6) Frequency: 45-65Hz automatic self-check
7) Commercial power: sine-wave
8) Output inversion: simulated sine-wave
9) Frequency: commercial power supply: shared frequency with the
commercial inversion state: 50Hzÿ?.5
10) AVR: 220VACÿ?0% (auto-sensing)
11) Transfer time: typical: 10ms (including detection time)
12) Spike protection: 320 joules, 2ms
13) Filter: 10dB at 0.15MHz , 50dB at30Hz
14) Overload: UPS automatic shutdown if overload exceeds 110% of
normal value for 30 seconds and 130% for 3 seconds
15) Tel/Fax/Modem: RJ45/11jack (compatible with DH-500B/CB,
DH1000B/CB)
16) Short circuit: UPS output is cut off immediately or input circuit
breaker protection
17) Alarm:
a) Battery back-up: beeping sound every 4 seconds under input
disconnect
b) Battery low voltage: beeping sound every 1 second when battery
runs out
18) Battery type: sealed maintenance-free lead acid
19) Capacity: (12V, 7Ah) x 1, (12V, 5.5Ah) x 2, (12V, 5.5Ah) x 1,
(12V, 7Ah) x 2
20) Recharge time: 8 hours to 90% of full capacity
21) Battery protection: automatic self-test, discharge protection and
battery replace indicator
22) Back-up time: typical 10min (half), typical 8min (half)
23) Communication interface: RS232(port)(B)
24) Bi-directional communication port (compatible with DH-500B/CB,
DH-1000/CB)
25) We accept order with special specifications

Inner packing:
Dimensions (D x W x H): 320 x 90 x 150, 320 x 90 x 150, 320 x 90 x 220,
366 x 110 x 165mm
N.W.: 6.6kg, 7.1kg, 10kg, 12.5kg
G.W.: 5.5kg, 6.0kg, 10.5kg, 13kg

Outer packing:
3, or 2pcs/ctn
Carton dimensions (D x W x H): 413 x 383 x 425, 465 x 375 x 240,
465 x 375 x 240mm
Weight: 22kg, 18kg, 21kg, 26kg

Specifications only for reference, subject to change without prior notice.