JMG Systems 627T Remote Transmitter type TX4A User Manual JMG TX
JMG Systems Ltd Remote Transmitter type TX4A JMG TX
User Manual
JMG Systems Ltd
68A Derry Road, Omagh, Co. Tyrone, N. Ireland, BT78 5ED
Tel: +44 (0)28 8224 4131
Fax: +44 (0)28 8225 2686
e-mail: info@jmgsystems.co.uk
USER MANUAL FOR REMOTE CONTROL TRANSMITTER
Model TX4A
JMG TX user manual.DOC Page 1 of 211 May 2002
FCC Compliance FCC ID: QBZ627T
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not
cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired
operation.
CAUTION:Changes or modifications not expressly approved by JMG Systems Limited could void the user's authority to operate this
equipment.
General Description
The Model TX4A Remote Control Transmitter is a small, handheld, battery powered,
914.5MHz radio transmitter unit which permits the remote control of four separate
auxiliary functions in quarry and other heavy machinery.
Front and rear views of the Model TX4A Remote Control Transmitter are shown in
the photographs on the right and below.
There are 5 operating buttons, labelled 1, 2, 3, 4, ON, and an LED (light emitting
diode) indicator on the front face of the unit. Buttons 1 to 4 are transmit buttons. A
special feature of the Model TX4A is the ON safety button. The purpose of the ON
button and the 2 minute timeout sequence is to minimise the risk of accidental
transmissions when, e.g., the unit is being carried in the user's pocket.
The rear face of the unit is fitted with a belt clip and the battery compartment lid.
Safety
THIS UNIT MUST ONLY BE OPERATED BY AUTHORISED PERSONNEL. THE
SAFETY PROCEDURES RELEVANT TO THE MACHINERY BEING
CONTROLLED MUST BE OBSERVED. PRIOR TO EACH TRANSMISSION THE
OPERATOR MUST HAVE CLEAR VISUAL SIGHT OF THE ITEM TO BE
CONTROLLED.
Operation
Press the ON button twice to enable the transmit buttons.
(Note - The interval between the two presses must be less than 2 seconds).
The LED will flash once to indicate that the transmit buttons are active.
If no transmit button is pressed during an ON period of 2 minutes (approximately), the
transmit buttons are automatically inhibited.
Pressing a transmit button restarts the 2 minute timeout.
The LED repetitively flashes whilst a transmit button is pressed
JMG Systems Ltd
68A Derry Road, Omagh, Co. Tyrone, N. Ireland, BT78 5ED
Tel: +44 (0)28 8224 4131
Fax: +44 (0)28 8225 2686
e-mail: info@jmgsystems.co.uk
USER MANUAL FOR REMOTE CONTROL TRANSMITTER
Model TX4A
JMG TX user manual.DOC Page 2 of 211 May 2002
Batteries
The unit is powered by two 1.5 volt AAA size Alkaline batteries.
With normal usage, the batteries would be expected to last in excess of 8 months.
The brightness of the LED whilst transmitting provides an indication as to the state of the
batteries. If the LED appears very dim, the batteries should be replaced.
To replace the batteries:-
1 Undo the 3mm screw securing the battery compartment lid.
2 Remove the lid by raising at the end adjacent to the belt clip.
3 Remove the exhausted batteries.
4 Fit two new AAA size Alkaline batteries taking special care to ensure that the
battery + polarity symbols align with the + marks embossed in the base of the
battery compartment.
5 Refit lid by engaging the small catches at the bottom edge of the lid with the slots
on the lower edge of the battery compartment and then fold the lid towards the belt
clip. Insert 3mm screw and secure.
Warranty
JMG Systems warrants that this instrument will be free from defects and faulty workmanship for a period of one year from
date of first purchase. JMG Systems sole responsibility and buyer’s exclusive remedy shall be the repair, or if we deem it
necessary, the replacement of all or part thereof at JMG Systems option.
This warranty does not cover any faults or defects caused by accident, misuse, fair wear and tear, neglect, tampering
with the equipment, or any attempt at adjustment or repair other than by JMG Systems.
In no event shall JMG Systems, or its agents or distributors, be liable for any direct, indirect, incidental or consequential
damages arising out of customer’s purchase or use of this product, even if JMG Systems has advance notice of the
possibility of such damage.
Defective products should be returned, freight prepaid, with a full description of the defect to your supplier or JMG
Systems at the address below. JMG Systems Ltd
68A Derry Road,
Omagh,
Co. Tyrone,
UK
BT78 5ED