Measurement Computing DBK34A - Manual

DBK34A
UPS / Battery Module
Hardware Setup for 12 Volt (Default) or 24 Volt Operation …… 3
Indicators …… 4
Runtime …… 4
Charging …… 4
Fuse Replacement …… 5
Environmental Concerns …… 6
DBK34A – Specifications …… 6
DBK34A is similar to DBK34 in appearance and operation; but there are differences.
Before proceeding with this document module, verify that your device is a DBK34A. If
your device does not have the “A” suffix, use the DBK34 Document Module instead of this
one.
Reference Notes:
o Chapter 2 includes pinouts for P1, P2, P3, and P4. Refer to pinouts applicable to your
system, as needed.
o In regard to calculating system power requirements, refer to DBK Basics located near
the front of this manual.
Overview
The DBK34A can power a data acquisition system in portable or in-vehicle UPS applications (both 12 V
and 24 V systems). Power storage capacity is 5 A-hr @ 12 VDC or 2.5 A-hr @ 24 VDC.
For reliable data acquisition in a vehicle, the DBK34A provides clean and consistent operating power:
• Prior to engine/generator start
• During engine start-up (battery sag due to the high-current demand of starter motor and
solenoid)
• After engine turn off.
• Before and after connection to the vehicle
DBK34A Front Panel
The DBK34A contains two sealed-lead rechargeable batteries (Gel-Packs), associated charging circuits and
current indicators. Typically, these batteries can last more than 500 full cycles and up to 10 years standby
lifetime at room temperature. Recharging is fast, and extreme temperature performance is good. The
DBK34A can be used with the LogBook, DaqBook, WaveBook, and related DBKs and WBKs. The unit’s
rugged metal package has a compatible 8×11” footprint for convenient stacking with Velcro tabs and
optional splice plates and handles for carrying.
DBK Option Cards and Modules 879795 DBK34A, pg. 1