FCS XMIC Bedienungsanleitung
XMIC ®
XMIC User Manual
Fluid Conservation Systems, Inc
502 TechneCenter Drive, Suite B
Milford, Ohio 45150
Phone (800) 531-5465
www.fluidconservation.com
Xmic 24/01/05
MAN-095-0001 Revision B © Palmer Environmental Ltd 2005
Page 1
Contents
Xmic Introduction 2
Warnings 3
System Description 4
Optional Additional Equipment 5
Xmic Overview 6
Preparing the Xmic for Use 8
Using the Xmic 9
Filter Selection 10
Survey Mode 10
Survey Mode Screens 11
MLP Mode 15
MLP Mode Screens 16
Guidance to Effective Acoustic Leak Detection 17
Xmic Technical Specification 20
Warranty 22
Xmic 24/01/05
MAN-095-0001 Revision B © Palmer Environmental Ltd 2005
Page 2
Introduction
The Xmic is an advanced, electronic ground microphone designed to amplify the
noise generated by water escaping from buried supply pipes under pressure. By
means of identifying the position of the loudest leak noise indicates the position
of the actual leak itself.
The Xmic system comprises a lightweight portable amplifier module complete
with battery charger, a pair of aviation-quality headphones and an acoustically
shielded ground microphone foot. As an optional extra, a hand-held listening
probe is available. This comes with a tripod foot and two probe rods for sounding
in soft ground.
The portable amplifier module has an LCD display and the advanced, easy-to-use
features of the Xmic enable the operator to pinpoint leaks faster and with more
confidence than ever before.
Note: The headphones supplied with the Xmic cannot be interchanged. The
impedance of the headphones is matched to the Xmic control unit during
manufacture.
Key features
• Sliding scale filter selection
• Backlit multi-function LCD display showing:
•Noise level graphically and digitally
•Dynamic sensitivity (signal strength)
•Settings and operation mode
• Levels of leak noise can be recorded for comparison in a histogram profile (MLP)
• IP65 enclosure
• Aviation-quality headphones with volume control
• Lightweight, easily portable system
• Membrane keypad
• Versatile – ground microphone and hand probe configurations
• Military specification connectors
• Robust construction for field use
• Rechargeable batteries (up to 25 hours use)
Xmic 24/01/05
MAN-095-0001 Revision B © Palmer Environmental Ltd 2005
Page 3
Warnings
Lithium ion batteries
The batteries supplied and fitted to the Xmic units are rechargeable lithium ion.
Do not short circuit or overcharge these batteries. Any misuse of these batteries
may result in explosion or fire. They must not be used in any other application or
used with any other equipment. Only batteries supplied by Palmer Environmental
must be used.
Microphone foot warning
The Microphone foot has a sensor attached that can be seen from the bottom of
the unit. Users must not attempt to unscrew this sensor as this will break internal
components of the microphone resulting in irreparable internal damage.
Sensor replacement is then the only option.
Any necessary repair or dismantling of the foot must be carried out by Palmer
Environmental or by an authorised distributor.
If the sensor does become loose it should be tightened manually so that it is
“finger tight". Excessive force will cause damage.
Sensor: Do NOT attempt to unscrew
Xmic 24/01/05
MAN-095-0001 Revision B © Palmer Environmental Ltd 2005
Page 4
System Description
Control unit – robust for field conditions
The control unit is the operator interface. It is very easily portable, and can be
carried by either hand or shoulder-strap. Its injection-moulded housing is purpose-
designed to provide long-term field durability and effective protection under realistic
site conditions and is environmentally rated to IP65.
The control unit has a membrane keypad, with push-key operation, and a backlit
multifunction LCD display. The interface to the headphones, charger and microphone
are via military-specification connectors.
Versatile leak noise sensing
The acoustically shielded ground microphone foot provides isolation from airborne
noise interference and can therefore be used in wet and windy conditions.
Standard equipment list:-
1. Control/amplifier module with adjustable
carry strap.
2. Acoustically shielded ground microphone
foot.
3. Aviation quality headphones.
4. Lithium ion battery pack and battery charger.
5. Carry case.
6. Cables.
7. Manual.
Xmic 24/01/05
MAN-095-0001 Revision B © Palmer Environmental Ltd 2005
Page 5
Optional Additional Equipment
A handheld sensor unit can be added to the system as an option, providing the
operator with the facility to use this as a smaller ground microphone with its tripod;
or to use it with probe rods to sound fittings in deep chambers or to use in soft
ground.
Equipment list including optional extras:-
1. Control/amplifier module with adjustable carry strap.
2. Combined hand probe and ground microphone with integral cable.
3. Two 400mm stainless steel rods.
4. One short legged tripod.
5. Aviation quality headphones.
6. Lithium ion battery pack and charger.
7. Carry case.
8. Cables.
9. Manual.
Xmic with optional handprobe,
tripod and probe rods.
Xmic 24/01/05
MAN-095-0001 Revision B © Palmer Environmental Ltd 2005
Page 6
Xmic Overview
Number Description
1Mute Button
2Mode Select
3Dynamic Acoustic Signal Level meter
4Battery Status
5Power On/Off and Back Light
6Gain Level
7Gain Increase/Decrease
8Battery Charging LED
9Contrast Adjustment
10 Context Sensitive Button
11 Context Sensitive Button
12 Context Sensitive Button
Xmic 24/01/05
MAN-095-0001 Revision B © Palmer Environmental Ltd 2005
Page 7
Number Description
1Headphone and Charger Socket
2Sensor Socket
3Retaining Screws for Battery Compartment
Xmic 24/01/05
MAN-095-0001 Revision B © Palmer Environmental Ltd 2005
Page 8
Preparing the Xmic for Use
The battery pack for the Xmic is supplied as a separate item in the carry case. The
batteries within this pack are supplied quarter charged. To insert the battery pack,
unscrew the three screws on the underside of the unit, remove the cover and
packing foam and connect the battery pack. Place in the battery compartment, refit
the packing foam and then replace the cover with the three screws.
Battery charging
To charge the batteries, connect the charge lead from the charger to the
headphones/battery charge connector on the back of the Xmic. Plug the charger unit
into the mains supply.
While the batteries are charging, the charging LED will be illuminated. This only goes
out when the batteries are fully charged. The Xmic unit cannot be used while the
batteries are charging. However, it can be turned on, a sensor can be plugged in and
a meter reading will be given, but there will be no sound as the headphones are not
connected during battery charging. The time required to charge the batteries from
flat is approximately 7 hours.
The On/Off switch can be pressed while the unit is on charge to see how much
charge is in the batteries at any time, however, the Xmic MUST be switched back off
again in order to resume charging. When fully charged the battery icon will appear
completely dark.
Battery replacement
Although the batteries are rechargeable, they may eventually need to be replaced.
Only batteries configured to the correct specification and type must be used, these
are available from Palmer Environmental.
To replace the batteries switch the unit off, unscrew the three screws on the
underside of the unit. Remove the packing foam then unplug the battery connector
and remove battery pack. Connect the new battery pack, refit the packing foam then
replace the cover using the three screws.
Xmic 24/01/05
MAN-095-0001 Revision B © Palmer Environmental Ltd 2005
Page 9
Using the Xmic
Select the sensor attachment required, either the acoustically shielded ground
microphone foot, or the optional microphone unit with probe rods or tripod which
must be screwed into the bottom of the microphone housing. Plug the headphones
into the Xmic control unit.
Xmic Switch On/Off
Switch the unit on by momentarily pressing the On/Off switch. The unit will switch on
and remain switched on until this same button is pressed again unless it is left
unused. To switch the unit off, the On/off switch must be pressed and held down for
3 seconds.
Headphones mute
To switch the headphones on press the headphones button. To switch them off press
the same button again. The headphones mute icon will be displayed. Note there is a
rotary control on the headphones to adjust the volume. To momentarily mute the
headphones, press and hold the mute button.
Back Light
To view the LCD display in bad light, illuminate the backlight by pressing the
combined On/Off Backlight switch briefly. To switch it off, press this same button
momentarily.
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