Radiodetection PCMx User Manual

PCMx Operation Manual
© 2021 Radiodetection Ltd 9
temperature LED will extinguish once the unit has cooled
down sufficiently.
Power Limit
This LED indicates that the external power supply is
incapable of supplying the demanded power to support
transmission at the selected current. The transmitter has
reached its own power limit. Switch to a lower current
setting.
Tx-25 only:
Power: Indicates a power supply is connected
Battery charging: Indicates when the battery is
charging. Lights ORANGE when the battery level is low.
Lights GREEN when the battery is almost charged. When
fully charged the LED will turn off.
Battery charge temperature: Indicates when the
battery is out of temperature range for charging.
3.6 LCD Display
The LCD displays the 4Hz signal current, in Amps, that is
being fed into the pipe.
On startup it confirms the AC frequency setting,
associated location frequencies and last calibration date.
The Tx-25 PCM also displays the battery level on startup.
3.7 Power Options
Tx-150
The Tx-150 can be powered in a number of ways:
 240 V (110 V) AC Supply or Generator
I f using a mains power supply or a portable generator the
TX-150 may require a supply that is capable of supplying
650W or more. Use the supplied mains lead to connect
directly to the mains supply or output of the generator.
 Vehicle DC to AC Inverter
It is possible to power the Tx-150 using a supply from a
vehicle DC to AC inverter. This supply will need to be
capable of providing at least 650W or more
 DC or rectified AC
Using the supplied DC lead the transmitter can be
powered from two 12V auto batteries, or one 24V auto
battery.
Alternatively, the rectifier can be used and will be
required to supply 15-35V rectified AC. The current
drawn from the supply will be a maximum of 5A.
Tx-25
 Rechargeable battery
The Tx-25 is fitted with a rechargeable battery. This
battery can be used to power the transmitter when a
mains supply is not available.
The battery can provide around 4 hours continuous use if
the Tx-25 is used at full output current level and lower
current output levels may be used where possible to
increase battery run time.
 240 V (110 V) AC Supply or Generator
If using a mains power supply or a portable generator the
Tx-25 may require a supply that is capable of supplying
125W or more. Use the supplied mains lead to connect
directly to the mains supply or output of the generator.
When the Tx-25 is connected to a mains supply the unit
will operate from this supply but at the same time charge
the internal batteries.
 DC to AC Inverter
It is possible to power the Tx-25 using a supply from a
DC source using a DC to AC inverter. This supply will
need to be capable of providing 125W or more.
CAUTION: Both transmitters are earthed through the
plug. When the Tx-25 PCM is charging from the mains,
the case is earthed. When disconnected and powered off
its internal batteries in the case is floating and earthed by
connection to local ground stake.
3.8 Using Portable Transmitters
When the PCM transmitter outputs a signal it outputs a
4Hz low frequency current mapping frequency and at the
same time a higher frequency locate signal. This higher
frequency signal is used to locate the pipeline and also to

Radiodetection PCMx Specifications

General

Brand	Radiodetection
Model	PCMx
Category	Measuring Instruments
Language	English