Touchpoint 4

Touchpoint 4
The Touchpoint 4 controller
provides protection of personnel
and plant from flammable, toxic
and oxygen gas hazards
Touchpoint 4 controller
User Friendly
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•
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Self-contained, wall mounted enclosure
Ultra-clear backlit display
Intuitive, icon driven, menu system
Simple push button operation
Easy to Install
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Unobtrusive slimline profile
Mounting bracket included
Easy access to all terminals
Pre-formed knockouts for cable entry
Flexible Operation
• Fully user programmable for
scale, units and calibration
• Fully configurable relays
• Compatible with all Zareba gas detectors
Common Module
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•
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System status indication
Built-in audiovisual alarms
AC and/or DC power distribution
Common gas and fault alarm relays
Dedicated drive for up to three remote
audible and visual alarms
Input for remote reset push button
RS485 interface
Input Modules
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•
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Accepts up to four channels
mA and mV inputs for wide range
of gas detectors
Individual channel display
Gas, range, reading and alarm status
Two user programmable alarm relays
Isolated 4-20mA output
The Touchpoint 4 controller provides
protection of personnel and plant from
flammable, toxic and oxygen gas hazards
when used with up to four Sensepoint gas
detectors. Self-contained, fully user
configurable and wall mounted, a Touchpoint
4 gas detection system can monitor gas
hazards in a large area or several discrete
locations from a convenient central site.
Touchpoint 4 may be driven from AC and/or
DC supplies and comprises a common display
module with up to four individual channel
modules. It is suitable for stand-alone operation or
as part of a larger distributed control system via
an integral RS485 interface. The common module,
with backlit display, details the overall system
status and includes common alarm relays, remote
reset push button input and dedicated drives
for up to three field mounted audible and visual
alarms. A panel mounted audible and visual alarm
is also included.
Input modules are available for use with
4-20mA and mV type gas detectors.
Each channel includes a backlit display
detailing gas type, measuring range, actual
gas reading in both numeric and bar graph
format as well as alarm status. Two user
programmable alarm relays and a repeated
4-20mA signal proportional to the gas level
monitored are included per channel.
The system is fully user programmable via
the ultra-clear backlit displays and intuitive
menu system. For example, relays may
be configured as ‘non-latching’ (default is
‘latching’) so that outputs clear automatically
on remote unmanned sites. Buttons used
for configuration are hidden behind access
panels to prevent tampering. A single button
is available to all users on the front of the
modules to perform a simple self-test or to
reset alarms when needed.
The shallow profile is designed for easy
location in corridors or reception areas where
some larger controllers may be obtrusive.
A wall mounting bracket is included to which
the controller is attached to simplify installation.
All cable entries are made using pre-formed
knockouts at the bottom of the enclosure.
The hinged front cover latches open to enable
full and unhindered access to the terminal
compartment for installers.
Event history is recorded as standard on
all Touchpoint systems. Times and dates
of alarms and power interruptions can be
reviewed via the display to provide useful
diagnostic information for service engineers
and plant operators.
The Touchpoint 4 gas detection system
provides comprehensive control of all your
gas detection needs.
Installation details
Touchpoint4 is designed for use in safe areas.
Electrical installation should follow national
guidelines using suitably approved cable
and glands (M20 or 3/4"NPT) or conduit
(3/4"NPT). Screened 0.5mm2 (20AWG)
to 2.5mm2 (14AWG) cross sectional area
cable should be used where appropriate to
minimize unwanted effects from RF sources.
Mechanical
General Description
The Touchpoint 4 controller is designed
to offer easy and convenient installation.
The wall mounting bracket provided serves
as a drilling template and enables the
controller to be mounted without assistance.
The hinged front cover may be latched open
to ensure free and unhindered access to the
large terminal compartment.
The pre-formed knockouts in the base
offer both M20 and 3/4"NPT fittings
enabling cable glands or conduit to be
used during installation.
Dedicated audible/visual alarm drives are
powered by the system thereby removing
any need for secondary supplies.
Mounting Bracket
Dimensions
88.0mm / 3.5"
395.0mm / 15.6"
268.0mm / 10.6"
86.0mm / 3.4"
172.0mm / 6.8"
228.0mm / 9.0"
198.0mm / 7.8"
338.0mm / 13.3"
Installation details
Common Module
Display
Terminal Layout
Connections
1
2
3
4
5
6
7
8
9
10
11
12
(L)ive
(N)eutral
(E)arth
NO
C
NC
NO
C
NC
NO
C
NC
13 DC +
23 DC 14
15
16
17
18
19
20
21
22
D+
DR1
R2
S1
S1
S3
VIS
+24VDC
Dedicated Audible/Visual Alarm Drive
AC Supply
85-265Vac, 50/60 Hz
160Wac Maximum
Alarm
Relay 1
Alarm
Relay 2
Fault
Relay
DC Supply 19-32VDC
63 Wac Maximum
RS485
Link
Remote
Reset
Dedicated
Audible/Visual
Alarm Drive
Typical
Audible& &
Visual
Alarms
Typical Audible
Visual
Alarms
Installation details
Channel Module (mV or mA)
Display
Sensepoint - Flammable (mV)
Sensepoint - Toxic & Oxygen (mA)
Terminal Layout & Connections
Sensepoint Plus & Pro – All Versions (mA)
Refer to detector datasheets for full specification of field devices
Technical summary
General Specification
Use Wall mounted 1 to 4 channel control panel for the local annunciation of gas hazards as detected by the Sensepoint range of gas
detectors. Suitable for use as an indoor stand-alone, self-contained installation or as part of a larger distributed control system.
Common Operation of Modules
Operation
Single ‘Test/Accept/Reset’ push button for normal use. Three further hidden push buttons per module for configuration via intuitive
menu system.
Backlit display
System and channel status including gas type, measuring range, units of measure, digital gas reading, bar graph display 0-100%FSD, system status indicators including alarm set point, alarm activated and power health.
Other indication Ultra-bright LEDs: Alarm (red), power (green), fault (amber)
Audible alarm
85dBA at 1m / 90dBA at 1 foot, user hush facility, re-activated on next event
Termination
Accessed via hinged front cover (latch to hold open as required). All cable/conduit entry via pre-formed knockouts at bottom of controller. Screw terminals suitable for 0.5mm2 (20AWG) to 2.5mm2 (14AWG). Crimped connection recommended.
Environmental
IP rating Indoor use, IP 44 in accordance with EN60529:1992
Weight 6kg (13.2lbs)
Operational
Temperature -10°C to +40°C / 14°F to 104°F
Humidity 10 to 90%RH (non condensing)
Pressure 90-110kPa
Storage
-40°C to +80°C / -40°F to +176°F, 20 to 80%RH (non condensing)
Common Module
Supply85-265Vac, 50/60Hz auto-sensing
19-32Vdc
Maximum power 160 Wac and/or 63Wdc
Communications RS485, user configurable address and baud rate (1200, 2400, 4800, 9600, 19200)
OtherRemote accept/reset push button, normally open, momentary close to activate
Relays
Common Alarm 1 (A1) Common Alarm 2 (A2) System Fault (F)
Rating
SPCO / 3A, 240VAC
(non inductive load)
SPCO / 3A, 240VAC
(non inductive load)
SPCO / 3A, 240VAC
(non inductive load)
Default Setting
Latching
Normally de-energized
Energize on any A1 alarm
Latching
Normally de-energized
Energize on any A2 alarm
Latching
Normally energized
De-energize on fault/power loss
User configurable options
Latching/non-latching
Energized/de-energized
Latching/non-latching
Energized/de-energized
Latching/non-latching
Energized/de-energized
Channel Module
Number of Inputs Up to four channel modules may be fitted to any system. mV and mA types available
Input modules are suitable for the following types of detector
Detector Type3 wire mV bridge 2 wire, 4-20mA, loop powered 3 wire, 4-20mA, source output
Example Sensepoint Flammable Sensepoint Toxic and Oxygen
Sensepoint Plus or
Sensepoint Pro
Detector Supply
mV Bridge Input Module mA Input Module
Constant current supply: 200mA Maximum detector current supply: 500mA
Self regulating supply voltage Minimum guaranteed supply voltage from the controller: 18Vdc
subject to cable resistance Input impedance: 100 Ohms
Maximum loop resistance:
18 Ohms
Relays Alarm 1 (A1) Alarm 2 (A2)
Rating SPCO / 3A, 240VAC (non inductive load) SPCO / 3A, 240VAC (non inductive load)
Default setting Latching, Normally de-energized Energize on alarm, Factory setting 20%FSD
Latching, Normally de-energized
Energize on alarm, Factory setting 40%FSD
User configurable options Latching/non-latching, Energized/de-energized
Rising/falling (Oxygen), Trip point 10-90%FSD Latching/non-latching, Energized/de-energized
Rising/falling (Oxygen), Trip point 10-90%FSD
Other Isolated 4-20mA output proportional 0-100%FSD
Ordering information
Ordering Information
NO. CHANNELS FITTED
mV INPUTS
4, 3, 2, 1
4, 3, 2, 1, 0
e.g. TPWM 4 3 2 1 = TPWM4321
MAX NO. OF CHANNELS
4-20mA INPUTS
4, 1
4, 3, 2, 1, 0
For reference only
Detector
Input Module
Required
Wires
Sensepoint
Flammable
Toxic
mV
mA
3
2
Sensepoint Plus
Flammable
Toxic
mA
mA
3
3
Sensepoint Pro
Flammable
Toxic
mA
mA
3
3
Notes
• No Channels Fitted Max No. Channels
• No Channels Fitted = 4-20mA Inputs + mV Inputs
Standard Supply
Each Touchpoint controller is supplied complete with mounting bracket, instruction manual and requisite number of mV and mA
input modules with factory default settings
Shipping Details
Shipping carton dimensions: L446mm (17.6") x W417mm (16.4") x D90mm (3.5") Approximate weight: 6kg (13.2lbs)
System Overview
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Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the
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