HT instruments HT7051 - Manual (Page 19)

HT2055
EN - 18
5 Press
TEST
key to activate the operation. The value of generated current is displayed.
Check this value.
CAUTION
 The output power is set automatically to its available maximum value (see
§ 6.1.2)
 Completely unwind measuring cable to avoid affecting test current value
(coil impedance)
 Usually the resistance of auxiliary probe can affect the generated test
current. The injected current can be increased by placing more probes in
parallel.
Synchronization between the units before the test (recommended)
Before starting with the step/contact voltage measurements it is recommended to
synchronize the meter and the station units. The synchronization sets the same date and
time in both units. Therefore the measured voltages can be correctly scaled after the
measurements. If the current is generated during the synchronization its value is also sent
to the meter unit (see § 5.1.3)
6 Connect both meter and station units through the PS/2-RS-232 cable supplied as
accessory (see Fig. 20)
Fig. 20: RS-232 connection between units
7 Select the option “Synchronize  Time, Current” on the meter unit (see § 5.1.3) and
confirm with TEST key. The messages “Connecting...” and “Synchronizing…” are
displayed.
CAUTION
The measurements can be carried out without synchronization. In this case
the measuring current must be set / changed manually. If the injected current
is changing during the test the I
GEN
parameter must be adjusted manually. The
measurement results cannot be corrected after the measurement.