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Introduction
TXL830/850/870 (Extra
Loads)
The TXL830, TXL850 and TXL870 Extra Loads com-
prise resistive loads. They can be used together with
TORKEL Load Units to increase loading capability. The
TXL Extra Loads can not provide regulatation by them-
selves but TORKEL measures total current from the
battery and regulates the load characteristic. When
TORKEL is stopped it sends a stop signal to the TXL
Extra Load.
The three models have different maximum voltage
ratings:
TXL830 28 V
TXL850 56 V
TXL870 280 V
TORKEL Win software (op-
tional)
The TORKEL Win program, which runs on a PC under
Windows
®
, builds up a voltage curve on the screen in
real time and displays the current, voltage and capac-
ity readings. You can also use TORKEL Win to control
TORKEL during the test . The program stores the
results in a text file, and it can generate reports
General
This manual explains how to use TORKEL 820, TORKEL
840 and TORKEL 860 Battery Load Units, and it also
covers the TXL830, TXL850 and TXL870 Extra Loads.
Although performance differs from one model to
the next, all models are used in the same way. Unless
otherwise specified, what is set forth in this manual
applies to all models.
TORKEL 820/840/860
These Battery Load Units are sophisticated instru-
ments designed mainly for capacity tests. All three
units can be programmed to test a battery bank at
constant current, constant power, or using a user-de-
fined load profile. TORKEL can also be used for testing
battery chargers and other electrical equipment that
require resistive load testing.
The three models have different maximum voltage
ratings:
TORKEL 820 60 V DC
TORKEL 840 288 V DC
TORKEL 860 480 V DC
TORKEL has a number of functions that facilitate its
use. Examples include:
Warning and automatic stop functions for
time, discharged capacity and low battery
voltage.
9 memories where settings can be stored.
Voltage curve can be stored for later transfer
to a PC using the TORKEL Win program.
Discharging can be started/stopped from ex-
ternal equipment.
Testing can be carried out without discon-
necting the regular load.
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