Oldham MX-15 Installation And Operating Manual
Installation and Operating
Manual
MX 15
SINGLE CHANNEL
CONTROLLER
Part Number: NPM15GB
Revision: C.0
The Fixed Gas Detection Experts
Table of Contents
ii
Copyright 2016 by Oldham
April 2016
All rights reserved. Reproduction in any form, in whole or in part, without the
express written consent of Oldham is strictly prohibited.
The information contained within this manual is true and correct to the best of
our knowledge.
Due to ongoing research and deve lopment, the specifications of this product
may be changed at any time without notice.
Table of Contents
iii
Table of Contents
Chapter 1 │General Information ................................................... 1
The User’s Guide ......................................................................................... 1
Symbols used .............................................................................................. 1
Safety Warnings .......................................................................................... 2
Important Information .................................................................................. 2
Limitation of liability ..................................................................................... 2
Chapter 2 │Genaral Introduction .................................................. 3
Purpose of the controller ............................................................................. 3
View: Front .................................................................................................. 3
View: Internal ............................................................................................... 4
View: Rear ................................................................................................... 5
Chapter 3 │ Installation and wiring .............................................. 7
Mounting the controller ................................................................................ 7
Wiring .......................................................................................................... 7
Chapter 4 │Operating instructions ............................................. 13
Display indications for start-up ................................................................... 13
Channel measurement display .................................................................. 13
Menus ........................................................................................................ 13
Chapter 5 │Cleaning, servicing and maintenance ..................... 19
Cleaning .................................................................................................... 19
Maintenance and servicing ........................................................................ 19
Fuse replacement ................................ ...................................................... 20
Parts .......................................................................................................... 20
Chapter 6 │Declaration of Conformity........................................ 21
Chapter 7 │Technical Specifications .......................................... 23
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MX 15
Instruction Manual
Chapter 8 │ Particular Specifications ......................................... 25
Specifications for mechanical and
electrical installations in Explosive Zones. ................................................. 25
Metrological specifications ......................................................................... 25
Connecting detectors other than
Oldham detectors to the MX 15 controller ................................................. 26
Markings: ................................................................................................... 26
1 – General Information
1
Chapter 1 │General Information
Icon
Meaning
This symbol indicates useful additional information.
This symbol indicates:
This equipment must be grounded.
This symbol indicates:
Safety grounding terminal. A cable of adequate diameter must
ground any terminal with this signal.
This symbol indicates:
Caution: In the current operating mode, failure to adhere to
the instructions preceding this symbol can result in a risk of
electric shock or death.
This symbol indicates:
Please refer to the instructions.
Double isolation.
The User’s Guide
Please read the following notice carefully before installation and start-up,
paying particular attention to the end-user safety instructions. This user’s
guide should be distributed to every individual involved in the start-up, use,
maintenance or repair of the system. The information contained in this
manual, the data and technical drawings are correct as of the date of
publication. Should questions arise, please contact Oldham for additional
information.
This manual is designed to provide users with simple and precise information.
Oldham shall not be held responsible or liable for any misinterpretation that
may result from the reading of this manual. Although every effort is made to
ensure accuracy, this manual may contain unintentional technical
inaccuracies.
On behalf of its clients, Oldham reserves the right to modify the technical
characteristics of its equipment without notice to improve product
performance. This user manual and its contents are the inalienable property of
Oldham.
Symbols used
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MX 15
Instruction Manual
European Union (and EEA) only. This icon indicates that in
accordance with Directive DEEE (2002/96/EC) and with the
regulations of your country, this product may not be disposed with
household waste.
Dispose of this product at a collection site intended for electrical
waste, for example an official EEE (Electrical and Electronic
Equipment) collection site with a recycling or take-back program
for authorized products available to consumers whose purchases
replace old EEE products with new equivalents.
Failure to comply with regulations for the disposal of this type of
waste can be harmful to the environment and to public health, as
EEE products typically contain potentially hazardous substances.
Your complete cooperation in the disposal of this product will help
to ensure a more efficient use of natural resources.
Installation and electric connections should be performed by a
qualified professional, according to Oldham's specifications and to
the standards of authorities in the field.
Failure to observe these rules may result in serious injury.
Exactness, particularly regarding electricity and assembly
(couplings, network connections) is imperative.
Safety Warnings
Icons have been placed on the central controller to call attention to general
use safety precautions. These labels are an integral component of the central
controller. Replace any label that has peeled off or become illegible. The
meanings of these labels are explained below.
Important Information
The modification of any component or the use of any third party components
will automatically void any and all guarantees.
The central controller is intended to be used for precise applications of a
technical nature. Exceeding the indicated values is strictly prohibited.
Limitation of liability
Neither Oldham nor any other affiliated organization shall be held liable under
any circumstances for any damage whatsoever including, without limitations,
damages for loss of production, interruption of production, loss of information,
controller failure, personal injury, loss of time, money, or materials, or for any
indirect or consecutive consequence of loss occurring during the use of the
product or the inability to use the product, even in the event that Oldham had
been informed of such damages.
2 – General Introduction
3
Chapter 2 │Genaral Introduction
Purpose of the controller
The MX 15 measurement and alarm controller is intended for simple
installations that do not require an electrical cabinet.
The MX 15 controller can be connected to combustible or toxic gas detectors,
or oxygen detectors.
The measurement from the detector is displayed on the MX 15 and compared
to the alarm thresholds. In the event that the measurement exceeds the
threshold, the controller activates the relays which can control external
components.
View: Front
The MX 15 controller is composed of the following components:
■ An enclosure with access cover (Figure 1, ref. E) for the settings (zero,
sensitivity);
■ A motherboard (Figure 2) for all of the system components (power, display,
relays and connectors) ;
■ A front plate (Figure 1, ref. D) with sector status and alarm indicators (A),
LCD screen (B) and touch keys (ref. C).
Figure 1: Full view of the MX 15 controller.
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MX 15
Instruction Manual
Ref.
Function
See page
A.
Programming circuit (Explo 340 mA or 4-20 mA).
9
B.
F8 Fuse (5x20, 250 V AC - 630 mA T) with 24V DC power supply.
9
C.
F7 Fuse (5x20, 250 V AC - 100 mA T) with 230 VAC power supply.
8
D.
Secondary ground connection.
E.
Sector power supply terminal (230 V AC or 110 V AC upon request) with
the following identifications: L (phase), N (neutral) and (ground).
8
F.
Power terminal block 24 V DC (0, + 24V).
8
G.
Terminal block connection with remote acknowledgment (dry contact
NO).
8
H.
Terminal block detector connection.
9
J.
Sensitivity settings.
16, 17
K.
Zero adjustment.
16, 17
L.
Configuration jumper (J17) for Fault relay.
- NC: Fault relay contact closed in alarm mode.
- NO: Fault relay contact open when not in alarm mode.
9
M.
Configuration jumper (J19) for RL1 relay.
- NC: RL1 relay contact closed in alarm mode.
- NO: RL1 relay contact open when not in alarm mode.
9
N.
Fault relay terminal block. Contacts CT, 250 V AC – 2A. Contact status
not in alarm mode as defined by J17 (ref. L).
9
P.
RL1 alarm relay terminal block. Contacts CT, 250 V AC – 2A. Contact
status not in alarm mode as defined by J19 (ref. M).
9
Q.
RL2 alarm relay terminal block. Contacts CT, 250 V AC – 2A . Contact
status not in alarm mode as defined by J18 (ref. R).
9
R.
Configuration jumper (J18) for RL2 relay.
- NC: RL2 relay contact closed in alarm mode.
- NO: RL2 relay contact open when not in alarm mode.
9
View: Internal
Figure 2: Internal view.
2 – General Introduction
5
Ref.
Function
See page
A.
Mounting rail (DIN format)
B.
Fixing the enclosure to the rail
C.
Stop for removal of the enclosure; pull downward to release.
View: Rear
Figure 3: Rear view
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MX 15
Instruction Manual
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