DP450 Tap Water Iontophoresis System User Manual
Rev. 1.4 / 02-16-2017
18
Current Limitation
In cases of very heavy sweating (which indicates a low electric resistance of
the skin and easier current flow), the maximum treatment current can be
reached before the specified dose (volt value) is achieved. A protection cir-
cuit (current limitation) intervenes in this case and stops the device.
This doesn't have any influence on the completion of the session and
protects you only against burns!
During the course of further treatments, higher dose values are gradually
reached as perspiration decreases (the electric resistance of the skin in-
creases so higher doses are necessary for effectiveness).
The protection circuit may
appear
to react faster when using pulsed current
mode, but this is not the actual case. In PC or VPC mode, the “average”
dose value is displayed, but the device monitors the maximum current, not
the average
1
.
Safety circuit
The DP450 has a safety circuit which stops the treatment in the case the
current exceeds 30 mA. In this case, the display will show “StOP” and all
LEDs will blink. Please turn it off, unplug the power supply from the wall and
send the device with all electrical accessories back to us if this occurs. Please
refer to section “Shipping the Device for Repair or Maintenance”.
Care and Maintenance
This section contains important instructions about your HIDREX system.
Special Remarks
Our responsibility for system safety, functionality, and reliability applies only if any
maintenance and servicing is exclusively performed by an authorized HIDREX
repair center. Our warranty ceases and we assume no liability if any manipula-
tion or service is performed by unauthorized personnel.
The regulations valid in the respective operator's country (e.g., infection preven-
tion, technical servicing or registration and documentation regulations) are to be
kept in connection with the location of use (e.g., medical institution), in any case,
by the operator.
Multi-Patient Use
The device is suitable for the use by several patients at the prescribing physi-
cian’s office or hospital, to conduct the initial or maintenance phases of the
treatment under a doctor’s supervision.
1
For example, if PC (50% pulse-width) is used, the displayed value has to be doubled to calculate the
current limit.