Honeywell Touchpoint 4 Manual

							Touchpoint 4
4 Channel Gas Detector Controller Technical Manual 
						

							   
TP4MAN Issue 3 Apr 06 (MAN0631)2 
						

							   Safety
TP4MAN Issue 3 Apr 06 (MAN0631)3
Ensure that this Technical Manual is read and understand BEFORE installing/operating/
maintaining the equipment.
This manual supports software revision 1.02 for the Common Module and 1.04 for the Channel
Modules.
Pay particular attention to Warnings and Cautions. 
All document Warnings are listed here and repeated where appropriate at the start of the
relevant chapter(s) of this Technical Manual. Cautions appear in the sections/sub-sections of the
document where they apply.
WARNINGS
Touchpoint 4 is designed for installation and use in indoor safe area 
non-explosive atmospheres. Installation must be in accordance 
with the recognized standards of the 
appropriate authority in the country concerned.
Before carrying out any work ensure local regulations and site procedures 
are followed. 
Access to the interior of the controller, when carrying out any work, 
must only be conducted by trained personnel. Switch off and isolate 
the power supply to the controller when access is required. 
Take any necessary precautions to prevent false alarms.
The detectors/sensors that the controller connects to may be used for gas 
detection in hazardous atmospheres. Refer to the individual detector/sensor 
instructions for their details. 
Safety 
						

							   Information
TP4MAN Issue 3 Apr 06 (MAN0631)4
Honeywell Analytics can take no responsibility for installation and/or use of its equipment if this
is not done in accordance with the appropriate issue and/or amendment of the Technical Manual.
The reader of this Technical Manual should ensure that it is appropriate in all details for the exact
equipment to be installed and/or operated. If in doubt, contact Honeywell Analytics for advice.
The following types of notices are used throughout this Technical Manual:
WARNING
Identifies a hazardous or unsafe practice which could result in 
severe injury or death to personnel.
Caution Identifies a hazardous or unsafe practice which could result in 
minor injury to personnel, or product or property damage.
Note Identifies useful/additional information.
Every effort has been made to ensure the accuracy of our documents, however, 
Honeywell Analytics can assume no responsibility for any errors or omissions in our documents
or their consequences.
Honeywell Analytics greatly appreciates being informed of any errors or omissions that may be
found in the contents of any of our documents.
For information not covered in this document, or there is a requirement to send comments/
corrections about this document, please contact Honeywell Analytics.
Honeywell Analytics reserve the right to change or revise the information supplied in this
document without notice and without obligation to notify any person or organization of
such revision or change. If information is required that does not appear in this document,
contact the local distributor/agent or Honeywell Analytics.
Information 
						

							   Contents
TP4MAN Issue 3 Apr 06 (MAN0631)5
Safety 3
Information 4
Introduction 7
Enclosure 8
Common Module  8
Channel Module  8
General 9
Installation 10
Location 10
Dimensions 11
Enclosure 11
Rear Panel Detail  12
Mounting Bracket  12
Mounting 13
Controller Components  13
Power 15
Cabling 15
Wiring 16
Common Module Wiring  17
Channel Module Wiring  20
Generic Gas Detector Connections  26
Maximum Cable Lengths  27
Operation 29
Powering Up  29
Information on the Displays  30
Control Buttons  31
Using Menus  32
Displaying Menus  32
Navigating Menus  32
Accepting Menu Choices  32
Cancelling Operations/Choices  32
Alarms 33
Common Module  34
Status Indications  34
Alarms 37
Menus 37
Contents 
						

							   Contents
TP4MAN Issue 3 Apr 06 (MAN0631)6
Channel Module  38
Status Indications  38
Alarms 43
Menus 43
User Settings  44
Common Module Settings  45
Event History  46
RS485   46
Relay Action  47
Time and Date  49
Power Source  50
Channel Settings  51
Gas Units and Range  52
Zero and Span  52
Alarm Levels and Relay Action  54
Channel Address   55
Common Module Default Configuration  55
Channel Module Default Configuration  55
mV input detector  56
4-20 mA input detector   56
Commissioning 57
3-wire mV Bridge  57
2-Wire 4-20 mA Sink  59
3-wire 4-20 mA Source  60
Maintenance 61
General Maintenance  61
Troubleshooting 62
System Configuration Check Sheet  63
System Review Check Sheet/Record  64
Parts 65
Touchpoint 4 Controllers  65
Accessories  66
Spares 66
Specifications 67
General 67
Environmental 67
Common Module  68
Channel Module  68
Warranty 70 
						

							   Introduction
TP4MAN Issue 3 Apr 06 (MAN0631)7
Touchpoint 4 is a self-contained 4 channel gas detector controller for use in indoor safe areas.
It is designed for use with the Zareba range of Flammable, Toxic and Oxygen gas detectors —
Sensepoint, Sensepoint Plus and Sensepoint Pro. 
For each channel one of two types of control unit is available:
• mV version — for 3-wire mV flammable gas detectors, e.g. Sensepoint Flammable 
detector
• 4-20 mA version — for 2 and 3-wire 4-20 mA gas detectors, e.g. Sensepoint Toxic 
and Oxygen detectors, Sensepoint Plus and Sensepoint Pro detectors 
Touchpoint 4 is wall mounted and displays gas concentration, alarm, fault and status
information via backlit LCDs and LEDs, together with a built-in audible alarm. A keypad, located
beneath a panel under each display, enables user adjustment.
The controller is AC and/or DC powered. Up to four gas detectors are connected to the unit via
any of 4 channels, each featuring a terminal module that also provides connections for relay and
repeated 4-20 mA signals. The controller features powered audio/visual outputs and also a
remote reset. The controller can be monitored via a serial communication link.
Enclosure
Cable/Conduit 
Entry
(11 off) Te r m i n a l
Module Controls
Access
Panel
On/Off
Switch
& Fuse3-wire
Terminal Block 20-wire
Te r m i n a l
Block Display
ModulesTe r m i n a l
Module Access Panel
(removed
for clarity)
8-wire
Terminal Block
3-wire
Terminal Block
Channels 1 to 4
Introduction 
						

							   Introduction
TP4MAN Issue 3 Apr 06 (MAN0631)8
Enclosure
The rigid steel enclosure houses a Common Module and up to four Channel Modules, each
featuring a Display Module and a Terminal Module. It has integral mounting hooks on the rear
for fitting to a supplied mounting plate. 
The base of the box has a removable plate with multiple cable/conduit knock-out entries to
enable wiring to all the terminal modules. 
A hinged panel below the display modules accesses the terminal modules.
For mechanical installation details see page 13.
Common Module
This part of the controller features a Display Module and a Terminal Module.
The Display Module provides a common point for alarm/fault display and management, and
provides configuration control and displays common system functions. 
It features an LCD screen and 4 buttons, three behind a Controls Access Panel, that are used
to navigate through an integral menu system to set up the common controller settings, and view
various functions. 
The Terminal Module provides a connection point for power and signal wiring, and features the
following: 
• 20-wire terminal block for common relay output signals, RS485 data, remote relay 
outputs, remote reset, remote audible/visual outputs and battery supply/backup 
power, see page 16
• 3-wire terminal block mains power, see page 16
• power on/off toggle switch and replaceable fuse
• 3 relays for alarms and faults
For electrical installation details see page 17.
Channel Module
Caution The type of Channel Module fitted is specific to the type of attached 
gas detector and must NOT be used with other detector types.
Either of the following types of Channel Module can be fitted to any of the controller’s four
channel positions:
• mV module 
• 4-20 mA module
Each of these types of Channel Module consists of a specific type of Display Module and
Terminal Module. Both types allow easy set up and configuration/calibration of the channel to
the attached gas detector.  
						

							   Introduction
TP4MAN Issue 3 Apr 06 (MAN0631)9
The Display Module features an LCD screen, to display gas concentrations and ranges,
settings, alarms and faults, and 4 buttons, three behind a Controls Access Panel, that are used
to navigate through an integral menu system to set up the channel/detector settings and view a
history record of channel status, e.g. alarms, etc. 
The Terminal Module provides the connection point for channel signals, and features the
following: 
• 8-wire terminal block for the gas detector signals, relay outputs, and repeated 4-20 
mA signal, see page 16
• 2 relays for alarms
For electrical installation details see page 20.
General
This Technical Manual provides all the information necessary to install, commission, operate and
maintain the controller in conjunction with the Zareba range of gas detectors. It consists of the
following chapters:
• Introduction
• Installation, see page 10
• Operation, see page 29
• User Settings, see page 44
• Commissioning, see page 57
• Maintenance, see page 61
• Parts, see page 65
• Specification, see page 67 
						

							   Installation
TP4MAN Issue 3 Apr 06 (MAN0631)10
WARNINGS
Touchpoint 4 is designed for installation and use in indoor safe area 
non-explosive atmospheres. Installation must be in accordance 
with the recognized standards of the 
appropriate authority in the country concerned.
Before carrying out any work ensure local regulations and site procedures 
are followed. 
Access to the interior of the controller, when carrying out any work, 
must only be conducted by trained personnel. Switch off and isolate 
the power supply to the controller when access is required. 
Take any necessary precautions to prevent false alarms.
The detectors/sensors that the controller connects to may be used for gas 
detection in hazardous atmospheres. Refer to the individual detector/sensor 
instructions for their details. 
This chapter provides the following information about installing Touchpoint 4:
• where to locate the controller, its dimensions and how to mount it
• how to access the interior of the controller, see page 13
• cabling and wiring, see page 15
Note It is recommended that a local fused power feed spur, with lockout switch, is used.
Earth/Ground loops or poor screening are the most common cause of false alarms. 
Proper installation, using appropriate earth techniques improves:
• resistance to radio frequency interference (RFI), e.g. mobile phones and walkie-
talkies
• resistance to induced signals from magnetic fields (EMC), e.g. high power cables 
and switch gear.
Location
Touchpoint 4 can only be installed in indoor safe areas. 
Refer to International codes of practice, e.g. National Electrical Code (NEC) or Canadian
Electrical Code (CEC), where applicable, for guidance when installing.
Ensure that the maximum distance from the controller to the detector is within specification.
Locate the bracket so that when the controller is fitted to it there is:
• easy access to it
• a clear view of the controller‘s displays (normally eye level), check for national/
local regulations regarding the viewing of displays
• enough space to open the enclosure’s access panels, for cabling, maintenance, 
adjustments, etc.
• enough space for cable or conduit access to the bottom of the enclosure
Installation