Microtech Gefell PEM 975 User manual

PEM 975
Recording at a lectern or table - sitting or standing
The PEM 975 is a special version of the KEM 975 - turned 90º to be used horizontally on a lectern or table.
This Data Sheet is the technical specifications of the PEM 975 - for more information please also see the
full Data Sheet on the KEM 975
Cardioid-Plane-Microphone
with non-rotational symmetrical directivity
User Manual

Adress Microtech Gefell GmbH
Georg-Neumann-Platz
07926 Gefell
Germany
Telephone [phone]
Fax [phone]
Internet www.microtechgefell.de
E-Mail [e-mail]
2 M.EN 201180.01
Address
M.EN PEM2020.01

LED indicator
XLR-5M connector
(inside)
PEM 975
M.EN PEM2020.01

Rackmount kit
front panel
connector
housingrack
adapter rack
adapter
4 M.EN 201180.01
rack
adaptor
“ear”
joining
connector
blank panel
rack
adaptor
“ear”
M.EN PEM2020.01

10
M.EN 201180.01
Contents
1 Technical specifications 07
2 Delivery 08
3 Accessories 09
4 About this manual 10
5 General Safety Instructions 10
5.1 Danger and information signs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.2 Normal Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.3 Unauthorised Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.4 Intended Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 Initial Steps 11
6.1 Setting up the equipment .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6.1.1 Setting up the PEM 975 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6.1.2 Setting up the N 975 power supply . . . . . . . . . . . . . . . . . . . . . . . . 11
6.2 Installing the rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6.2.1 Installing the N 975 into a half-19” Rack . . . . . . . . . . . . . . . . . . . . . 12
6.2.2 Installing the 19” Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.3 Connecting the equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.4 Aligning the microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.5 Disassembling and storing the microphone.. . . . . . . . . . . . . . . . . . . . . . . . 14
6.5.1 Storage at the venue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.5.2 Storage in the transport case ... . . . . . . . . . . . . . . . . . . . . . . . . 14
7 Individual settings 14
7.1 Setting the supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.2 Setting the level ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7.3 Setting grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8 Use of the accessories 15
9 Cleaning and Maintenance 15
9.1 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
9.2 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
10 Guarantee 16
11 Disposal of old equipment 17
M.EN PEM2020.01
5

10
M.EN 201180.01
6
M.EN PEM2020.01
2111142
satin nickel
2111143
dark bronze

1 Technical specifications
Cardioid-Plane-Microphone KEM 975
Poar pattern horizontal super cardioid
vertical club shaped
Recording angle horizontal 120 Grad
vertical 30 Grad
Acoustic operating principle Pressure gradient
transducer
Frequency range 40 bis 18000 Hz
Sensitivity 775 mV/Pa
at 1 kHz, Gain 0 dB
Rated impedance 40 Ohm
Equivalent loudness level CCIR 468-4 24 dB
DIN EN 60268-4 15 dB(A)
Max. SPL for THD 0,5 Gain 12 dB 104 dB
Gain 0 dB 116 dB
Gain -12 dB 128 dB
Gain -24 dB 140 dB
Gain -36 dB 152 dB
Connecting plugs Neutrik XLR5M
Weight 1,07 kg
Length 343 mm
Diameter Mesh 38 mm
Gain 25 mm
Finish nickel matt,
dunkel bronze
Power supply N 975
Power supply voltage 230/115 V AC
±10%, 50/60 Hz
Connecting plugs KEM 975 XLR5F
Audiosignal XLR3M
Weight 1,6 kg
Width 221 mm
Depth 170 mm
Height 45 mm
M.EN 201180.01 7
Polar pattern
Output connector
Neutrik XLR-5M
120º
30º
40 - 18,000 Hz
40 Ω
Housing
Connectors
Audio output
XLR-5F
XLR-3M
satin nickel
dark bronze
Connectors
Connectors
Output connector
club shaped
cardioid
PEM 975
PEM 975
M.EN PEM2020.01
30º
120º

2 Delivery
Cardioid-Plane-Microphone KEM 975
Microphone holder MH 975
Power supply N 975
Connection cable (10 m) C 975.1
Main cable
Rack mounting set
Reducing nut 5/8” on 3/8” or 1/2”
Tommy-screw 8 mm for MH 975
Socket wrench 8 mm for MH 975
Suitcase 450 x 160 x 365 mm
satin nickel Order-No. 211180
dark bronze Order-No. 211181
Prior to each use of the microphone make sure that all the parts are in a perfect condition. We also rec-
ommend to inspect the device for residual dust at appropriate intervals and to have the Microtech Gefell GmbH
examine it, if necessary.
8 M.EN 201180.01
IEC mains cable
Thread adaptor: ⅝” male to ⅜” & ½” female
8mm Allen key for MH 975
Transit case 450 x 160 x 365 mm
Prior to each use of the microphone make sure that all parts are in perfect condition.
We also recommend that the microphone is inspected for residual dust at appropriate intervals and to have
Microtech Gefell GmbH examine it, if necessary.
PEM 975
Transit case 450 x 350 x 160 mm
Order-No. 2111142
Order-No. 2111143
M.EN PEM2020.01
Order-No. 2111142

3 Accessories
Microphone connection cable 10 m C975.1 Order-No. 202224
Microphone connection cable 20 m C975.2 Order-No. 202225
Microphone connection cable 30 m C975.3 Order-No. 202226
Microphone connection cable with angle plug 10 m C975.1 W Order-No. 202227
Delta-Capsule DM 21
satin nickel Order-No. 201246
dark bronze Order-No. 201247
Cone holder for elastic-stationary fixing KH 975.03
Reducing nut 5/8” on M10
nickel matt Order-No. 202374
dunkel bronze Order-No. 202375
Cone holder for elastic-stationary fixing KH 975.1
Reducing nut 5/8” auf M10
satin nickel Order-No. 202376
dark bronze Order-No. 202377
Microphone hanger MA 975
1x Microphone holder MH 975
2x Reducing nut 5/8” on M6
2x Ring screw M6
Tommy-screw und socket wrench 8 mm
satin nickel Order-No. 202380
dark bronze Order-No. 202381
Prior to each use of the microphone make sure that all the parts are in a perfect condition. We also recommend
to inspect the device for residual dust at appropriate intervals and to have the Microtech Gefell GmbH examine
it, if necessary.
M.EN 201180.01 9
Microphone connection cable with rt.angled plug 10m
satin nickel
dark bronze
Anti-vibration mount for permanent fixing - 10cm
Thread adaptor ⅝” to M10
Anti-vibration mount for permanent fixing - 3cm
Thread adaptor ⅝” to M10
Auditorium hanger
2 x Thread adaptor ⅝” to M6
2 x Ring screw M6
Tommy-screw and Allen key 8mm
Prior to each use of the microphone make sure that all parts are in perfect condition.
We also recommend that the microphone is inspected for dust at appropriate intervals and to have
Microtech Gefell GmbH examine it, if necessary.
M.EN PEM2020.01
Prior to each use of the microphone make sure that all parts are in perfect condition.
We also recommend that the microphone is inspected for dust at appropriate intervals and to have
Microtech Gefell GmbH examine it, if necessary.

10
M.EN 201180.01
4 About this manual
Please read this User Manual carefully before use
to minimise the risk of physical injury or damage to
property or to the equipment.
Keep this User Manual handy during installation
and store it in a safe place in case it is needed by a
user at a later date. If you are an installation
company, please make sure this Manual is passed
on to the customer on completion of the installation.
Please pass this User Manual on to any subsequent
owners to ensure safe use of the product.
5 General Safety Instructions
5.1 Danger and information signs
5.2 Normal Use
The PEM 975 is a line array microphone with the
main sound input direction perpendicular to the
front of the microphone. It is not a rotationally
symmetric polar-pattern, but a cardioid pattern at
rt.angles to the microphone and a narrow 30 !angle
in the other direction.
The microphone is designed to capture a person
speaking at a lectern, podium, table, etc. Because
of the cardioid characteristic in the vertical plane, it
does not matter if the person is tall or short, or
standing up or sitting down, it picks up equally well.
It will reject the sound of anyone standing or sitting
next to the speaker as the horizontal pick-up is very
tight.
It is designed for indoor use, or for temporary
outdoor use.
5.3Unauthorised Use
This product should not be used by children or
persons with impaired physical, sensory or mental
abilities; nor by persons who have a lack of
experience, unless they are being supervised.
5.4Intended Use
Do not expose yourself to extreme noise levels
M.EN PEM2020.01