BTG TCT-2301 User manual

Enter
Sample
Total Consistency
Transmitter
TCT-2300
User Manual
TCT-2301
Smart optical low consistency transmitter
©BTG 2004
M2007/3en

Disclaimer
The contents of this document are subject to revision without notice due to continued progress
in methodology, design, and manufacturing. BTG shall have no liability for any error or
damages of any kind resulting from the use of this document. ©BTG 2004.
BTG Pulp & Paper Sensors AB
P.O. Box 602
SE-661 29 Säffle
Sweden
Phone: [phone]
www.btg-group.com

M2044/0en TCT-2302 Table of contents I
©BTG 2004
Table of contents
1 Product introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
1.3 Measuring principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.3.1 The Peak Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4 System description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.5 Typical applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.6 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
1.7 Type sign explanations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
1.8 CE-declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2 Safety recommendations . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.1 General safety recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2.2 Product specific safety recommendations . . . . . . . . . . . . . . . . . . . . . . . . 14
2.2.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.2.2 Selecting a transmitter model and assembly parts . . . . . . . . . . . . . . . . 14
2.2.3 Installing mounting details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.2.4 Installing the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.2.5 Installing the electronics box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.2.6 Starting up and servicing the transmitter . . . . . . . . . . . . . . . . . . . . . . . . 15
3 Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.1 Before you start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3.1.1 Visual inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.1.2 Installation and operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.2 Installing the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
3.2.1 Positioning the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.2.2 Probe clearance requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.2.3 Sampling valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.2.4 Installing the ball valve assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.2.5 Mounting the probe in the valve assembly. . . . . . . . . . . . . . . . . . . . . . . 24
3.3 Installing the electronics box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
3.3.1 Choosing a site for the electronics box . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.3.2 Electronics box design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.3.3 Connecting the measuring probe to the electronics box . . . . . . . . . . . . 29

II TCT-2302 Table of contents M2044/0en
©BTG 2004
3.3.4 External wiring dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.3.5 Main power supply connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.3.6 Transmitter input and output, measuring range connections . . . . . . . . . 34
3.3.7 Digital communication using the Hart®-protocol . . . . . . . . . . . . . . . . . . . 34
3.4 Probe cleaning system (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.4.1 Dimensions and installation clearance. . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.4.2 Installing the PCD-1000 upgrade kit . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.4.3 Installing the PCD-1000 probe cleaning device . . . . . . . . . . . . . . . . . . . 40
3.4.3.1 Probe cleaning device connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
3.4.4 Controlling the cleaning device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
3.5 Checklist before start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4 Operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.1 Starting the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.1.1 Adjusting TAG / Serial no. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.1.2 Measuring range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.1.3 Select measuring unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.1.4 Setting measuring span . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.2 Clear water adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
4.2.1 At start up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
4.2.2 Selecting the correct ”mode” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
4.2.3 Adjustment of measuring gap angle. . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.3 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
4.3.1 General remarks on calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
4.3.1.1 Criteria for calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
4.3.2 General remarks on sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
4.3.3 Calibration procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4.3.3.1 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4.3.3.2 Take sample. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
4.3.3.3 Load lab value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
4.3.3.4 Calculate calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
4.3.4 Multi-point calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
4.3.5 Calibration with given constants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
4.3.6 Calibration table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4.3.7 Calibration curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4.4 Other functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
4.4.1 Setting time constant (damping) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
4.4.2 Setting alarm limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
4.4.3 Offset adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
4.4.4 Manual loading of probe signal settings. . . . . . . . . . . . . . . . . . . . . . . . . 59

M2044/0en TCT-2302 Table of contents III
©BTG 2004
4.5 Evaluation and documentation of calibration . . . . . . . . . . . . . . . . . . . . .60
4.5.1 Trend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
4.5.2 Documenting calibrations with printer . . . . . . . . . . . . . . . . . . . . . . . . . . 61
4.5.3 Documenting calibration using the ”back-up card” . . . . . . . . . . . . . . . . 64
4.5.4 Documenting calibration using a PC . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
4.6 Electronics box display menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
4.6.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
4.6.2 Menu structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
4.6.2.1 How to change settings and collect samples . . . . . . . . . . . . . . . . . . . . 70
4.7 Hand-held Terminal SPC-1000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
4.7.1 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
4.7.2 Code protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
4.8 Digital communication according to the Hart®-protocol . . . . . . . . . . . . . . 80
5 Service instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
5.1 Maintenance planning and quality assurance . . . . . . . . . . . . . . . . . . . . . 81
5.1.1 Inspection of the accuracy/calibration of the consistency transmitter . . 81
5.1.2 Calibration recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
5.1.3 Maintenance of the transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
5.1.4 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
5.2 Service electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
5.2.1 Electronics troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
5.2.2 Electronics card LED functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
5.2.3 Function and testpoints of electronics card . . . . . . . . . . . . . . . . . . . . . . 87
5.2.4 Changing the electronics card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
5.2.5 Change of power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
5.2.6 Changing the front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
5.2.7 Check analog out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
5.2.7.1 Calibrate analog out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
5.2.8 Checking communication to and from SPC-1000/A. . . . . . . . . . . . . . . . 93
5.2.9 Checking range inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
5.2.9.1 Change range input using digital input (hardware) . . . . . . . . . . . . . . . . 94
5.2.9.2 Change range using software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
5.2.10 Checking the alarm output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
5.3 Service probe and valve arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . 96
5.3.1 Pull out the probe from the ball valve. . . . . . . . . . . . . . . . . . . . . . . . . . . 96
5.3.2 Check clear water value and clean of probe . . . . . . . . . . . . . . . . . . . . . 97
5.3.3 Change the probe with fiber connection. . . . . . . . . . . . . . . . . . . . . . . . . 99
5.3.4 Replacing ball valve seals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
5.3.5 Inserting the probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

IV TCT-2302 Table of contents M2044/0en
©BTG 2004
5.4 Service software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
5.4.1 Software revisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
5.4.2 Troubleshooting functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
5.4.2.1 Alarm & diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
5.4.3 Software Fault feedback SPC-1000. . . . . . . . . . . . . . . . . . . . . . . . . . . 104
5.5 Evaluating calibrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
5.6 Troubleshooting, general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
5.7 Maintenance of the cleaning system. . . . . . . . . . . . . . . . . . . . . . . . . . . 109
6 Parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
6.1 Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
6.2 Valve arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
6.3 TCT-2301 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
6.4 Cleaning device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
6.5 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

1.1 - General
M2007/3en TCT-2301 Product introduction 1
©BTG 2004
1 Product introduction
Total consistency transmitter
• Measures total consistency, independent of varying content of filler
and fines, with a unique measuring method – enables accurate
consistency measurement
• Virtually insensitive to flow variations and temperature changes –
for high accuracy and reproducibility
• No moving parts and non-clogging probe design – gives low
maintenance costs
• Simple calibration and documentation – provides easy start up and
usage
• Simple installation – for low installation costs
• Probe can be retracted without shutting down the process
1.1 General
The TCT-2301 is an in-line transmitter for measuring total consistency
of pulp suspensions in the range 0.01-3.5%.
Based on BTG's patented Peak Method (see section 1.3) of optical anal-
ysis, the TCT-2301 is virtually insensitive to variations in filler and fines
content, making it particularly suitable for use with recycled and me-
chanical pulp suspensions.
The transmitter is mounted in-line, without any special bypass arrange-
ment, for optimized functioning of the control loop. The instrument's
unique probe, without electronic components, makes the transmitter in-
sensitive to variations in temperature and vibration. The probe is con-
nected to the wall-mounted electronics unit by an optical fiber.
An integrated fail-safe system means the probe can be installed and re-
tracted safely without shutting down the process, even in high pressure
applications.
The transmitter's non-clogging and self-cleaning features ensure trouble-
free and accurate operation with easy maintenance.

1.2 - Technical data
2 TCT-2301 Product introduction M2007/3en
©BTG 2004
The TCT-2301 employs modern microprocessor technology, including
fast data collection with a separate signal processor, digital data process-
ing with advanced signal analysis.
The TCT-2301 is served by the SPC-1000 hand-held terminal, which
works not only with the TCT-2301, but also with all instruments in the
BTG family of smart transmitters.
The SPC-1000 can be connected at any point on the 4-20 mA output
signal loop. Communication with a DCS is by means of a superimposed
digitized signal according to a standard Hart® protocol. In addition, the
unit is prepared for fieldbus digital communication.
BTG has adopted the OPC communication standard, which enables any
OPC equipped system direct access to TCT-2301 transmitters.
1.2 Technical data
Enter
Sample
Terminal
Total Consistency
Transmitter
TCT-2300
Fig 1 Smart optical low
consistency
transmitter TCT-
2301 with SPC-
1000 hand-held
terminal
Type TCT-2301 in-line smart optical consistency
transmitter for pulp slurries. One analog output for
total consistency.
Manufacturer BTG, Säffle, Sweden
Measuring principle Light scattering using the Peak-method.
Performed by light transmission of NIR, 880 nm
Measuring range Total consistency 0.01 to max. 3.5% (0.1 - 35 g/l)
depending on fiber type and filler content
Measuring accuracy ± 0.004%
Repeatability 0.0001%

1.2 - Technical data
M2007/3en TCT-2301 Product introduction 3
©BTG 2004
Process conditions
Process pressure PN 16 (232 psi at 68 °F)
Media temperature Max. 150ºC (302°F)
Max. ambient
temperature
Probe: 150ºC (302°F)
Electronics box: 50ºC (122 °F)
Process pH 4-9
Storage temperature Min. - 20ºC (70°F)
Standardization
Standardization Quality-assured in accordance with ISO 9001.
Designed in accordance with relevant CE standards.
See section 1.8: CE-declaration of conformity
Probe
Mounting Mounted through a ball valve assembly.
Material Stainless steel to SS 2343, equiv. to ANSI 316, DIN
X5 CrNiMo 18.22, B.S.316 S16/En 58J
Connection Optical connection to electronics box.
Weight Probe 3.3 kg (7.2 lb)
Valve assembly approx. 3.8 kg (8.4 lb)

1.2 - Technical data
4 TCT-2301 Product introduction M2007/3en
©BTG 2004
Electronics Box
Supply voltage Supply voltage 84 - 264 VAC, 50/60 Hz, max. 50 VA
- automatic setting. Output voltage 24 VDC,
regulated. Output power max. 40 VA, max. constant
power 1800 mA at an ambient temperature of 50°C
(122°F). Approved
according to UL, CSA, VDE.
Output signal - analog 4-20 mA. Isolated against mains supply / protective
earth. Built in insulation amplifier
Current limited to 21 mA.
Loop load signal: voltage supply / load
21.6 VDC / max. 1030 Ω
24 VDC / max. 1100 Ω
26.4 VDC / max. 1270 Ω
Min. (nom.) load for communication with hand-held
terminal 250 Ω.
Input signal - analog 0 / 4-20 mA
Output signal - digital Superimposed signal over
4-20 mA current loop according to standard HART®
protocol and BELL 202 modem . Follows HART®
universal commands.
Power consumption Max 600 mA incl. hand-held terminal
(excl. 200 mA) at 24 VDC
Measuring ranges
(analog)
Four separate, individually programmable, externally
connectable with binary-coded switch. Also
accessible via the communications link.
Input – digital
(measuring ranges)
2 x 2 optically isolated contact inputs.
Alarm function
(digital)
Optocoupler output. Provides alarm signal on low/
high LED curr./cons.level /internal temp.
Electronic Enclosure Made of polycarbonate thermoplastic with a transpar-
ent cover. Metal-plated internally to protect against
interference.
Protection rating IP65, NEMA 4x, UL, CSA
Weight Electronics box 2.4 kg (5.3 lb)

1.2 - Technical data
M2007/3en TCT-2301 Product introduction 5
©BTG 2004
Communications
Option 1: Using the BTG SPC-1000 handheld terminal jacked
into the electronics box. The digital communication is
superimposed over the 4-20 mA current loop.
Option 2: Directly with the DCS. See “Output signal - digital”.
Allows HART® universal commands.
Option 3: RS-485 for connection to OPC-server. OPC program
provided by BTG. Note: Only for DCS/OCS systems
with OPC capabilities.
Option 4: Prepared for fieldbus communication e.g. Profibus or
Fieldbus Foundation.
Signal transmission 10 m (33 ft) quartz glass optic fibers included,
protected in a flexible conduit.
On request 20 (66 ft), 30 (98 ft) and 40 m (131 ft).
Accessories
Hand-held terminal, SPC-1000
See data sheet D218.55
Smart Lab Sampler, SLS-1000
See data sheet D218.62
Documentation program for PC
Probe cleaning device: PCD-1000
See data sheet D2020.
PCD-1000 cleaning device (option)
Weight 9.5kg/20.9lb including valve and probe.
Dimensions See page 2.
Ambient temp. 50ºC/122°F
Air supply/conn. Filtered 4-7bar (58-102 psi).
Ø6/4mm (0.236/0.157)
Water conn. Mechanically cleaned, 4-10bar (58-145 psi).
Inlet Ø8,5mm (0.335in)
Outlet Ø17mm (0.669in)
Supply voltage 24V DC supply from TCT-2301 electronics box.
Min. 4 x 0.75mm² (AWG18)

1.3 - Measuring principle
6 TCT-2301 Product introduction M2007/3en
©BTG 2004
1.3 Measuring principle
1.3.1 The Peak Method
The TCT-2301 employs the patented peak method for measuring total
consistency of pulp suspensions. This technology is based on the fact that
suspensions contain both large and small particles. Large particles are
typically fibers and small particles are fillers and fines.
Close study of a suspension sample shows that the high number of small
particles in the suspension remains relatively constant over time. On the
other hand, there are far fewer large particles and their number varies sig-
nificantly over time.
The large particles form a relatively transparent network, within which
the small particles move freely. A narrow light beam directed through the
suspension is generally affected by both the large and small particles.
There is however an interval when only small particles affect the light
beam, and this is know as the "Peak" period.
During the other time periods, the light beam is affected by both the large
and small particles. Fig 2 and fig 3 illustrate this principle.
In fig 2, a light beam passes through the pulp flow (1). The transmitted
light is detected by a photo detector. The detector signal is amplified (5)
and then treated by the signal processor (6).
8
1
9
2
5
4
3
DC
PEAK
6
7
Fig 2 Operating principle
1 Pulp flow
2 Measuring gap with light beam
3 Optical fiber from light source
4 Optical fiber to detector
5 Amplifier
6 Digital signal processor
7 Microprocessor
8 Input signals
9 Output signals
2143

1.3 - Measuring principle
M2007/3en TCT-2301 Product introduction 7
©BTG 2004
Three signals are computed by the detector signal: The mean value, VDC,
the peak value, VP and the AC-component, VAC. Typical time graph
showing the detector signal is displayed in fig 3.
The total consistency is obtained by adding the further treated VPand the
VDC values.
Fig 3 Output signal
VCW Clear water
VPPeak value
VDC Direct current signals
VAC Alternating current signals
TC Total Consistency
Light transmission
Volts
TC
Time

1.4 - System description
8 TCT-2301 Product introduction M2007/3en
©BTG 2004
1.4 System description
The system consists of a probe (1) connected by an optical fiber to an
electronics box (2) The probe contains only optical fibers. A ball valve
arrangement that is welded to the pipe system make it possible to remove
the probe without interrupting the process.
The electronics box contains electronics card, power supply, electrical
and optical connections. To set up the transmitter a hand-held terminal
(3) type SPC-1000 must first be connected (see fig 4).
The hand-held terminal allows the operator to set up and monitor the sys-
tem. It includes a liquid crystal display (LCD) with a touchscreen key-
pad.
1.5 Typical applications
• Control of flotation systems or wash stages for de-inking of
recycled fibers
• Control of screening and cyclone cleaning processes
• Monitoring of TMP/CTMP steam and hot-water recovery
systems
CRC
1
3
5
2
8
4
9
7
6
Enter
Sample
Terminal
Total Consistency
Transmitter
TCT-2300
Fig 4 Typical control loop for
consistency control of the TCT-
2301
1 Measuring probe
2 Electronics box
3 Hand-held terminal SPC-1000
4 3/4 wire system for analog output
5 Controller/recorder (DCS)
6 Dilution water valve
7 Pulp chest with sufficient mixing
8 Stock pump
9 BTG sampling valve type MPS-1000

1.6 - Dimensions
M2007/3en TCT-2301 Product introduction 9
©BTG 2004
1.6 Dimensions
300
12"
469
18.5"
53
2.1"
121
4.8"
121
4.8"
Ø50
2”
251
9.9"
108
4.3"
Min Ø100
4"
Fig 5 TCT-2301 Dimensions
1 Electronics box
2 Probe with retraction
system
1
2

1.7 - Type sign explanations
10 TCT-2301 Product introduction M2007/3en
©BTG 2004
1.7 Type sign explanations
1. Manufacturer
2. CE-marking
The TCT-2301 is approved according to CE directives.
3. CSA-marking
The TCT-2301 electronics box is approved according to Australian C-
TIC N1619 directives.
4. ETL-marking
The TCT-2301 electronics box is approved by ETL
5. Warning sign
The device is designed for industrial use. Installation, handling and ser-
vice must only be carried out by trained and authorized personnel and ac-
cording to relevant standards. Read the manual for detailed information
and pay special attention to the warning signs!
BTG Pulp & Paper Sensors AB
Box 602
661 29 Säffle
SWEDEN
N1619
TYPE
www.btg-group.com
VOLTAGE
APPARENT POWER
NO
FREQUENCY
INSTALLATION CATEGORY FACTORY IDENTIFICATION
Fig 6 Type sign
1 Manufacturer
2CE-marking
3 C-TIC marking
4 ETL-marking
5 Warning sign
6 Type specification
7 Voltage
8 Apparent power
9 Installation category
10 Frequency
11 Manufacturing number
12 Factory Identification
1234
6
7
8
5
91011 12
TCT-2301
100-240 VAC 50-60 Hz
50 W III
Always refer to the type
sign when ordering spare
parts.

1.7 - Type sign explanations
M2007/3en TCT-2301 Product introduction 11
©BTG 2004
6. Type specification
7. Voltage
Automatically adjustable between 100-240V AC.
8. Apparent power
According to CE directive. Max. continuous output.
9. Installation category
According to CE directive. Resistant to transients.
10.Frequency
The unit operates both 50 and 60 Hz.
11.Manufacturing number
BTG internal product identification number.
12.Factory identification

1.8 - CE-declaration of conformity
12 TCT-2301 Product introduction M2007/3en
©BTG 2004
1.8 CE-declaration of conformity
CE-Declaration of Conformity
According to EN 45014
Manufacturer´s Name BTG Pulp & Paper Sensors AB
Manufacturer´s Address P.O. Box 602 S- 661 29 SÄFFLE, Sweden
declares that the product:
Product Name Total Consistency Transmitter
Model Number TCT-2300/2301/2302/with FCI-1000
complies with the amendments and
requirements of the: Machinery Directive 89/392/EEC
Low Voltage Directive 73/23/EEC
EMC Directive 89/336/EEC
PED Directive 97/23/EEC
and conforms with the following product
standards and PED conformity assessment
procedure
Safety EN 292/1-2
LVD EN 61010-1
PED Pressure equipment for piping.
In accordance to Article 1,
Table 9, art.3 (3), Annex II
(Sound eng. practise)
Must not bear CE-marking
EMC EN 50081-2 Aug.93
EN 61000-6-2 Apr.02
Quality System ISO 9001
monitored by
Lloyd`s Register Quality Assurance
Säffle
Mars 2002
Tom Gustavsson, MD

2.1 - General safety recommendations
M2007/3en TCT-2301 Safety recommendations 13
©BTG 2004
2 Safety recommendations
2.1 General safety recommendations
Installation, handling and service must only be carried out by trained and
authorized personnel and according to valid standards.
• The product is designed for industrial use.
• Installation category: III
• Shock protection: Class I
• Pollution degree: 2
• IP Code: IP65 / NEMA 4X
• The product complies with the EEC directives and relevant
standards:
To meet the EMC directive the following precautions have to be
taken:
1. All wiring has to be shielded.
Power supply electronics: shielded, coverage≥80%
Interface cable: coverage 100% aluminum
2. All units are tested as a complete system to conform with rele-
vant CE directives and their standards.
When using the unit in other combinations, BTG cannot guarantee
the CE directive conformity.
The unit in combination with customer installed external devices
may conform with EMC and safety requirements when properly
installed and using an adequate CE marked equipment.
The system operator is responsible for the CE directive conformi-
ty. Conformity must be checked by inspection.
• Take precautions when handling equipment in pressurized/hot lines.
See section 1.2: Technical
data for detailed
information.

2.2 - Product specific safety recommendations
14 TCT-2301 Safety recommendations M2007/3en
©BTG 2004
2.2 Product specific safety recommendations
These safety recommendations are based on a risk analysis carried out in
accordance with the requirements of the machinery and low voltage di-
rective in order to comply with European standards for CE marking.
2.2.1 General
The possibility of risk from a consistency transmitter in operation only
arises when covers have been removed during installation and servicing,
due to hazardous electrical voltage.
Read these safety recommendations before installing the transmitter.
Follow the recommendations when installing the transmitter, starting up
and servicing. Use warning signs for safety information!
These safety recommendations apply to the transmitter fitted with an AC
powered electronics box. Mounting parts, such as the weld-in studs, are
dealt with in accordance with the pressure vessel standards of the respec-
tive countries.
!For good personal and functional safety: Use only parts which
have been manufactured or approved by BTG.
2.2.2 Selecting a transmitter model and assembly
parts
Pressurized parts must be suited to the current maximum pipe pressure in
relation to temperature. Select a material for the parts that are in contact
with the medium so that corrosion does not occur.
2.2.3 Installing mounting details
Welding and subsequent inspection should take place in accordance with
current standards and regulations.
2.2.4 Installing the transmitter
• Construct a platform or use safe and approved ladders if the
transmitter is located high up. This platform will make it easier to fit
and start-up the transmitter and carry out service in the future.
• The rubber quality of the transmitter seal (O-ring) should be selected
to suit the current medium. The O-ring supplied is suitable for this
application.
• Screw the valve assembly firmly onto the weld-in stud.
Be sure that the pipe is
empty before opening it!