Evoqua WALLACE & TIERNAN GMS PLUS User guide

WALLACE & TIERNAN
®
GAS MONITORING SYSTEM
GMS PLUS
INSTRUCTION MANUAL

2 WT.050.455.000.DE.IM.0319
GMS plus
Please note
Original instruction manual!

GMS plus Contents
3
Contents
1. Introduction 5
1.1 Documentation 5
1.2 Conventions 6
2. Safety 7
2.1 Intended use 7
2.2 General safety instructions 8
2.3 Safety instructions specific to the unit 9
2.4 Warranty conditions 10
2.5 AGW-Values
(Occupational exposure limit) 10
3. Description 11
3.1 Technical data 11
3.2 Scope of supply 15
3.3 Description 15
4. Functions 21
4.1 Application 21
4.2 General 22
4.3 Alarms 24
4.4 Interfaces 30
4.5 Door contact switch 32
4.6 Temperature measurement (Pt1000 sensor) 33
4.7 mA outputs 34
4.8 Power fail output 34
4.9 Test function 35
4.10 Battery supply (optional) 36

4 WT.050.455.000.DE.IM.0319
Contents GMS plus
5. Installation 39
5.1 Transport and storage 39
5.2 Installing the gas monitoring system GMS plus40
5.3 Commissioning the Chloratect sensor 48
5.4 Adjusting the span with comparative
measurement and function test 50
5.5 Commissioning the mA sensor 57
5.6 Commissioning 59
5.7 Shutdown 66
5.8 Change batteries (battery supply option) 67
6. Operation 69
6.1 Display and operating elements 69
6.2 Notes on operation 71
6.3 Errors and remedies 90
7. Maintenance 95
7.1 Routine maintenance 95
7.2 Electrolyte supply for Chloratect sensors 96
7.3 Replacing a fuse or battery 97
7.4 Recommended spare parts 99
8. Accessories and spare parts 101
8.1 Gas monitoring system GMS plus 101
8.2 Chloratect sensors and sensor kits 101
8.3 mA sensors and sensor kits 102
8.1 Temperature sensors und sensor kits 102
9. Wiring diagrams 103
10. Declaration of conformity 109
11. Index 111

GMS plus Introduction 1.
5
1. Introduction
1.1 Documentation
1.1.1 Target groups
This instruction manual provides the information for installation,
operating and maintenance personnel. It is required for operation
and maintenance of the unit.
This instruction manual is intended for the operating personnel. It
contains important information for safe and reliable, trouble-free
and economical operation of the unit. Observation of this
information helps to prevent danger, lowers repair costs, reduces
down-times, and also increases the reliability and service life of the
unit.
The chapter "Installation" is intended for trained and qualified
service personnel only. It contains important information on
installation, configuration and commissioning of the unit.
All persons working with the unit must have read and understood
the instruction manual, particularly the safety instructions it
contains.
Please consult the table of contents and the index to quickly locate
the chapter you are looking for.

6 WT.050.455.000.DE.IM.0319
Introduction GMS plus
1.
1.2 Conventions
Please note
This instruction manual contains a number of notes with different
priorities which are marked with symbols.
Picto-
gram Note Meaning
Danger! Immediate danger to life and limb! If
the situation is not handled properly,
death or serious injury is the result.
Warning! Danger to life and limb! If the
situationis not handled properly,
death or serious injury may be the
result.
Attention! If this warning is not observed,
medium or slight injury or damage to
the equipment may be the result.
Warning! This symbol warns against parts
carrying dangerous electrical
voltages.
Risk of fatal injury!
Please
note
These notes facilitate work with the
system.
Attention! Environmental hazard!
Do not throw away or burn the batter-
ies!
Batteries must be disposed of
at a collection point for chemical
waste.

GMS plus Safety 2.
7
2. Safety
2.1 Intended use
The gas monitoring system GMS plus continuously measures the
concentration of gas (e.g. chlorine, chorine dioxide, ozone, etc.)
and the temperature in rooms. The GMS plus sends an optical or
acoustic warning signal as soon as a set limit value has been
exceeded.
The GMS plus may only be used in rooms and under the operating
conditions described in the technical data.
The operational safety of the unit is only guaranteed if it is used in
accordance with its intended application. The unit may only be
used in accordance with its intended application as defined in the
order and under the operational conditions stated in the technical
specifications.
Compliance with the intended use also includes reading this
instruction manual and observing all the instructions it contains.
Intended use also means that all inspection and maintenance work
must be performed at the prescribed intervals.
The operator bears full and sole responsibility if this unit is put to
any use which does not comply strictly and exclusively with this
intended use.

8 WT.050.455.000.DE.IM.0319
Safety GMS plus
2.
2.2 General safety instructions
Evoqua Water Technologies GmbH places great emphasis on
safety when working on or with the unit. Safety is our guiding
principle right from the design phase; the system is therefore
equipped with safety features.
Safety instructions The safety instructions in this documentation must be observed
unconditionally at all times. Additional industry-wide or in-house
safety regulations also continue to apply.
Safety notes printed
on the unit
All safety instructions attached to the unit itself must be observed.
These instructions must always be clearly legible and complete.
State-of-the-art technology The unit has been constructed in accordance with state-of-the-art
technology and the accepted safety regulations. However, if the
unit is used by persons who have not been adequately instructed,
risks to life and limb of such persons or third parties and damage
to the unit itself or to other property cannot be ruled out. Work not
specifically described in this instruction manual may only be
performed by authorized personnel.
Personnel The operator of the overall system must ensure that only
authorized and qualified specialists are permitted to work with and
on the unit within their defined scope of authority. "Authorised and
specialised personnel" refers to trained technicians of the
operator, of Evoqua Water Technologies GmbH and, if applicable,
of the service partner. All work on electrical components must be
performed by qualified electricians only.
Spare parts / components Trouble-free operation of the unit is only guaranteed if original
spare parts and components are used in precisely the combination
described in this instruction manual. Failure to observe this
instruction may incur the risk of malfunction or damage to the unit.
Extensions and conversions Never attempt to perform any modifications, extensions or
conversions on the unit that could have an adverse affect on safety
without the written approval of the manufacturer.
Electrical power During normal operation, the housing must remain closed.
Prior to installation, inspection, maintenance and repair work,
always switch the unit off by the main switch on the outside of the
unit and secure against reactivation.
Connect all cables in accordance with the wiring diagram.
Disposal Ensure that auxiliary materials and replaced parts are disposed of
in a manner that is safe and environmentally benign.

GMS plus Safety 2.
9
2.3 Safety instructions specific to the unit
Notes for the operator • This instruction manual and the technical documentation of the
installed components of the unit must always be available at
the installation site!
• Always observe any supplementary, generally valid legal
regulations or other binding rules and ensure their compliance!
These rules and regulations apply to:
• work safety
• accident prevention
• environmental protection
• hygiene
• first-aid
• All personnel charged with installation, commissioning,
operation, maintenance and repair of the unit must read and
understand this instruction manual, particularly the safety
instructions!
• Never attempt to perform any modifications, extensions or
conversions on the unit which could have an adverse affect on
safety without the written approval of the manufacturer!
• Only use spare parts which have been approved by the
manufacturer. This is always guaranteed when original spare
parts are purchased.
• Always observe the intervals for regular maintenance or
inspection work which are either prescribed or stated in the
instruction manual.
• Never use corrosive cleaning agents!
Use only a damp cloth to clean the unit.
Notes for operating personnel • Always read the instruction manual, in particular the safety
instructions, before you operate the unit for the first time!
• Never employ any working methods which could endanger
safety!
• Always comply with the prescribed values for connection
voltage as well as ambient and operating conditions!
• Never deactivate any safety features!
• During operation of the unit, unexpected incorrect functions
may occur that result from failure or errors in the control
system. In the event of such safety-relevant changes in the
operating performance of the device, switch it off immediately
and remedy the fault or have it remedied immediately!
• Even when the unit is switched off, external voltage may still
be applied.
• In the event of a fire, always switch the unit off with the main
switch on the outside of the unit or with the external main
circuit breaker or fuse!

10 WT.050.455.000.DE.IM.0319
Safety GMS plus
2.
2.4 Warranty conditions
The following must be observed for compliance with warranty
conditions:
• Installation, commissioning by Evoqua Water Technologies
GmbH technicians or trained and authorised specialised
personnel, e.g. of contracted companies
• Intended use
• Observing the operational parameters and settings
• The unit may only be operated by trained personnel.
• The unit must not be exposed to frost (while running).
• Maintenance work must be executed by operating personnel
• Use of original spare parts
If any of the above conditions are not met, the warranty is revoked.
2.5 AGW-Values
(Occupational exposure limit)
cm3/m3 = ppm Equivalent to mg/m3
Chlorine Cl20.5 1.5
Chlorine
Dioxide
ClO20.1 0.28
Ozone O30.1 0.20

GMS plus Description 3.
11
3. Description
3.1 Technical data
3.1.1 Gas monitoring system GMS plus
Accuracy 0.5 % based on the measuring range-
end value
Ambient temperature 0 – 50 °C
Environment No direct sunlight
Atmospheric
pressure
75 – 106 kPa
Storage temperature -20 to +70 °C
Noise emission < 45 dB (without alarm)
Power supply 200 – 240 V AC ± 10 %
50/60 Hz 15 VA Fuse 0.63 A (T)
100 – 120 V AC ± 10%
50/60 Hz Fuse 0.63 A (T)
24 V DC in accordance with EN 61131
(18 – 30, 2 V) 15 W Fuse 1.6 A (T)
Relay outputs Switching values:
5 A, 250 V AC, 1250 VA max.
5 A, 220 V DC, 150 W max.
UL/CSA rating:
5 A1/6 HP 125, 250 V AC
5 A 30 V DC 30 W max.
1 A 30 V DC - 0.24 A 125 V DC
Digital inputs 3x for switch contacts (voltage-free)
< 100 Ohm
Plus 2x in 24 V units together with
battery supply
Do not supply voltages to the digital
inputs.

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Description GMS plus
3.
Analog outputs 3x 4 – 20 mA, not electrically isolated,
impedance < 600 Ohm
Interface RS232/RS485, not electrically isolated
For connection to:
Process Monitoring System
ChemWeb server
OPC Server Data Access V2.0
CMS software 3.0
Optional RS232 to connect a printer
Dimensions 320 x 270 x 175 mm (W x H x D)
Weight 5 kg incl. packaging
Enclosure IP 66
Display and operating
unit
1 x operating panel with 6 keys
8 x red LED to display alarm states
1 x green LED to display power supply
1 x display 2 x 16 characters, self-
luminous

GMS plus Description 3.
13
3.1.2 Sensors
Chloratect sensors for
Chlorine, chlorine dioxide and
ozone
Passive 4 – 20 mA sensors For technical data, see corresponding sensor data sheet.
Pt1000 temperature sensors
Measuring range Chlorine (Cl2): 0 – 5 ppm
0 – 20 ppm
Chlorine dioxide
(ClO2):
0 – 5 ppm
0 – 20 ppm
Ozone (O3): 0 – 1 ppm
Sensor cable Length 2 m (standard)
Optional extension: max. 100 m
Dimensions Ø 35 x 110 mm
Enclosure IP 20
Operating position Vertical ± 15 °
Measurement
uncertainty
± 5 % (under laboratory conditions)
± 15 % without span adjusting
Measurement setting
time
30 sec. for 60 % of end value
Storage temperature -20 – 50 °C (without electrolyte)
Operating
temperature
5 – 50 °C
Temperature changes max. 5 C/h
Measuring range 0 – 50 °C
Sensor cable Length 0.9 m (standard)
Optional extension: max. 100 m
Dimensions Ø 15 x 45 mm
Enclosure IP 66

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Description GMS plus
3.
3.1.3 Battery supply (optional)
Please note
Only possible together with 24 V GMS plus gas monitoring
system.
Power supply 98 – 264 V AC
47 – 63 Hz
Dimensions 250 x 180 x 165 (W x H x D)
Cable length 1.5 m (do not lengthen)
Enclosure IP 66
GMS plus operating
duration in a case of a
power failure
min. 10 h
The operating duration is less with
additionally connected consumer
units!
Battery life Approx. 2 – 3 years
Storage temperature 0 – 50 °C
Operating temperature 0 °C to 45 °C
Output voltage 19.8 – 26.4 V DC ± 0.4 %
Output current max. 2 A
Insulation Overvoltage category 2
Contamination level 2
Battery type Lead battery (maintenance-free)
Fuse protection Battery load circuit 3 AT
Max. back-up fuse 5 A
Other outputs Power ok
Battery ok
Charging voltage temperature
tracking
Battery circuit test 1 per minute
Battery temperature
monitor
> 45° => battery error

GMS plus Description 3.
15
3.2 Scope of supply
Please note
Please find order numbers in Chapter 8. “Accessories and spare
parts” on page 101.
3.2.1 Standard
The scope of supply includes the following, depending on the
individual order:
• Gas monitoring system GMS plus
3.2.2 Options
• Chloratect sensors for chlorine, chlorine dioxide and ozone
• Passive 4 – 20 mA sensors
• Sensor connection cable
• Pt1000 temperature sensors
• Battery supply for 24 V
3.3 Description
3.3.1 Versions
The gas monitoring system GMS plus exists in three voltage
variations:
• 200 – 240 V AC 50/60 Hz
• 100 – 120 V AC 50/60 Hz
• 24 V DC acc. to EN 61131 (18 – 30, 2 V)

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Description GMS plus
3.
3.3.2 Design
Gas monitoring system
GMS plus
In the gas monitoring system GMS plus, up to two Chloratect
sensors and/or up to two mA sensors as well as two
Pt1000 sensors may be connected.
The following are integrated into the cover (A):
• A green LED (B) to indicate the power supply
• Display 2 x alarm message sensor I (C)
• Display 2 x alarm message sensor II (D)
• Display 3 x common alarm (E)
• Display sensor error (F)
• Operator controls (G)
• 2 x 16 character LCD display (H).
A Cover
B Green LED (power)
C Alarm message sensor I
D Alarm message sensor II
E Common alarms
F Sensor error
G Operator controls (keys)
H LCD display
A
B
C
D
E
F
H
G

GMS plus Description 3.
17
The gas monitoring system GMS plus consists of a plastic housing
with removable cover.
The following are installed in the gas monitoring system GMS plus:
• Program memory (A)
• Battery for real-time clock (B)
• 115/230 V Mains selection switch (C)
• Fuses (D)
• Terminal strips for outputs (E)
• Cable terminal screws (F)
• RS232 interface (G)
• Connections for sensors, digital inputs, interface and mA
outputs (H)
• Display connection (I)
A Program memory
B Battery for real-time clock
C 115/230 V mains selection switch
D Fuses
E Terminal strips for outputs
F Cable terminal screws
G RS232 interface
H Connections for sensors, digital inputs, interface and
mA outputs
I Display connection
A
B
C
D
E
I
G
H
F

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Description GMS plus
3.
The following sensors can be connected to the gas monitoring
system GMS plus:
• 2x Chloratect sensors for chlorine, chlorine dioxide and ozone
• or 2x 4 – 20 mA sensors
• 2x Pt1000 temperature sensors
Please note
Either a Chloratect sensor or mA sensor can be connected
per sensor channel.
Chloratect sensors for
Chlorine, chlorine dioxide and
ozone
4 – 20 mA sensors

GMS plus Description 3.
19
Pt1000 temperature sensors
Battery supply for
24 V gas monitoring system
GMS plus
As an option, a battery supply (Part No. W3T158770) can be
connected to the 24 V gas monitoring system GMS plus.
Lead battery
Power supply: 98 – 264 V AC

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Description GMS plus
3.