PT 200M Instruction manual
Copyright
All Rights Reserved. No part of this document may be copied,
reproduced, republished, uploaded, posted, transmitted,
distributed, stored in or introduced into a retrieval system in
any form, or by any means (electronic, mechanical,
photocopying, recording or otherwise) whatsoever without
prior written permission of PT Ltd.
Disclaimer
PT Ltd reserves the right to make changes to the products
contained in this manual in order to improve design,
performance or reliability.
The information in this manual is believed to be accurate in all
respects at the time of publication, but is subject to change
without notice. PT Ltd assumes no responsibility for any errors
or omissions and disclaims responsibility for any consequences
resulting from the use of the information provided herein.
SPECIAL NOTE
Trade Use of the PT200 Series
This manual may occasionally make reference to Trade Use
settings of the PT200 Series.
Some individual settings may not be legal for trade use.
Please check regulations with the appropriate Weights and
Measures Authority.
Quick Start Manual Rev 1.0
003R-620-100 Page 1
Table of Contents
1. INTRODUCTION............................................................2
1.1. Approvals (for trade versions only)........................2
1.2. Manuals .................................................................2
2. SHIPPING CONTENTS .................................................2
3. SPECIFICATIONS .........................................................3
4. WARNINGS ...................................................................4
4.1. General ..................................................................4
4.2. Configuration Issues ..............................................4
5. INSTALLATION .............................................................4
5.1. Electrical Safety .....................................................5
5.2. Panel Mount Template...........................................5
5.3. Special Function Key .............................................5
5.4. opto-LINK...............................................................6
6. CONNECTIONS.............................................................7
6.1. Cable Connections ................................................7
6.2. DC Power (DC PWR + , DC PWR –)....................7
6.3. Load Cell Connection ............................................7
6.4. Auxiliary Connections ............................................9
6.5. Connecting Shields..............................................13
6.6. Regulatory Sealing Requirements.......................14
7. INSTRUMENT SETUP.................................................15
7.1. Calibration Counter..............................................15
7.2. opto-LINK.............................................................15
7.3. Access Full Setup ................................................16
7.4. Access Safe Setup ..............................................16
7.5. Exit Full or Safe Setup .........................................16
7.6. Settings................................................................16
8. ERROR MESSAGES...................................................24
8.1. Weighing Errors ...................................................24
8.2. Setup and Calibration Errors ...............................25
8.3. Diagnostic Errors .................................................26
Quick Start Manual Rev 1.0
Page 2 003R-620-100
1.Introduction
This manual contains information on the installation, calibration
and setup of the instrument.
1.1. Approvals (for trade versions only)
• NSC approval (4000 divisions at 0.8µV/division).
• NMI approval (4000 divisions at 0.8µV/division).
• C-tick approved and CE approved.
1.2. Manuals
For more information on this instrument refer to the
Reference Manual, Quick Start Manual or
Communications Manual.
2.Shipping Contents
The following table identifies the items shipped with the
indicator. Please check that your packing box contains the
specified items.
Shipped Items Other Items (Optional)
• Indicator
• Operator Manual
• Quick Start Manual
• Trade Label (plastic)
• Panel Mount Template
• Function Key Overlay Stickers
• opto-LINK Cable
• Power Supply
• Desk Mount with Battery
Compartment
• U Bracket
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003R-620-100 Page 3
3.Specifications
Performance
Resolution Up to 30,000 divisions, minimum of 0.25µV/division, 20
updates/second (Trade 4000 divisions at 0.8µV/division)
Zero Cancellation 2.0mV/V
Span Adjustment 0.1mV/V to 3.0mV/V full scale
Stability/Drift Zero: < 0.1µV/°C (+ 8ppm of deadload max)
Span < 8 ppm/°C, Linearity < 20ppm, Noise < 0.2µVp-p
Excitation 5 volts for up to 4 x 350 or 8 x 700 ohm load cells (4-wire
or 6-wire plus shield)
Maximum total load cell resistance: 1,000 ohms
A/D Type 24bit Sigma Delta with 8,388,608 internal counts
A/D Conversion
Rate
20Hz with FIR filtering > 80dB
Operating
Environment
Temperature: –10 to +50°C ambient
Humidity: <90% non-condensing
Storage: –20 to +50°C ambient
IP55 when panel mounted
Case Materials ABS, Silicon Rubber, Nylon, Acrylic (no halogen used)
Packing Weights Basic Indicator: 0.34kg
Digital
Display LED Backlit LCD with six 20mm high digits with units and
annunciators
Setup and
Calibration
Full digital with visual prompting in plain messages
Digital Filter Sliding window average from 0.1 to 4.0 seconds
Zero Range Adjustable from 2% to 20% of full capacity
Power Input
Standard Power
Input
12 to 24VDC (2.5 VA max) - ON/OFF key with memory
feature
Variants AC AC Plug pack: 110/240VAC 50/60Hz in 12VDC 0.5A out
Battery 4 x AA batteries (Alkaline or rechargeable NiMH, NiCad,
etc.)
Features
opto-LINK Data
Coupling
Infra-red Connector for optional opto-LINK PC cable (to
RS-232 PC port)
Correction Five point linearity correction
Outputs RS-232 automatic transmit, network or printer outputs.
Transmission rate: 2400, 4800 or 9600 baud
Assignable
Function Key
Unit switching, counting, manual hold, peak hold, live
weight and totalising
Drive Outputs 2 isolated transistor drive outputs (300mA total at 50VDC)
Battery Backed
Clock Calendar
Battery life 10 years minimum
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Page 4 003R-620-100
4.Warnings
4.1. General
• Indicator not to be subject to shock, excessive vibration or
extremes of temperature (before or after installation).
• Inputs are protected against electrical interference, but
excessive levels of electro-magnetic radiation and RFI may
affect the accuracy and stability.
• For full EMC or for RFI immunity, termination of cable shields
and correct earthing of the instrument is essential.
• Indicator and load cell cable are sensitive to excessive
electrical noise. Install well away from any power or
switching circuits.
4.2. Configuration Issues
• Configuration and calibration can be performed from the front
panel, using digital setup. When Full Setup is used, all menu
items are accessible and care must be taken to ensure no
accidental changes are made to calibration and trade
settings.
• Enter a passcode to prevent unauthorised or accidental
tampering. If the passcode is lost, the manufacturer should
be contacted for further advice.
5.Installation
The following steps are required to set up the indicator.
• Inspect indicator to ensure good condition.
• Use connection diagrams to wire up load cell, power and
auxiliary cables as required.
• Use the drill hole template provided for hole locations.
• Connect Power to indicator and press <POWER> key to turn
the instrument On.
• Refer to the Instrument Setup section page 15 for information
on configuring and calibrating the instrument.
• To turn instrument Off press and hold <POWER> key for
three seconds (until display blanks).
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003R-620-100 Page 5
5.1. Electrical Safety
• For your protection all mains electrical hardware must be
rated for environmental conditions of use.
• Pluggable equipment must be installed near an easily
accessible power socket outlet.
• To avoid the possibility of electric shock or damage to the
instrument, always switch off or isolate the instrument from
the power supply before maintenance is carried out.
5.2. Panel Mount Template
Use the panel mount template for drill hole locations. The
template indicates positions for the two 4mm mounting screws
through the panel. Also displayed on the template is the
position of the rectangular hole that should be cut to allow for
the connection of cables. The drilling template supplied with
the indicator allows for front or rear machining of the panel.
5.3. Special Function Key
• The Special Function Key on the instrument ships as a blank
key.
• If any of the special functions are to be used on the indicator
it is important that the matching function key overlay sticker
(supplied) is applied to the keypad.
• Ensure keypad is clean and dry before affixing sticker.
Quick Start Manual Rev 1.0
Page 6 003R-620-100
5.4. opto-LINK
The optional opto-LINK
cable can be used to
transfer setup and
calibration information
from a PC (eg. to be
stored for later use and/or
transferred to other
instruments). It can also
be used to download software upgrades to the instrument
from a PC.
• Attach the opto-LINK cable to the PC using the DB9 connector.
• Attach the opto-LINK head to the left side of the instrument
display using the permanent magnet located within the head of
the opto-LINK.
WARNING: The opto-LINK head contains a strong magnet and care
should be taken with its proximity to electronic media (eg. credit
cards, floppy disks, etc.) and/or other electronic instrumentation.
5.4.1. opto-LINK Activation
A long press of the <GROSS/NET> key will toggle the opto-LINK
infrared communications On/Off.
When the opto-LINK has been (enabled) the following will occur:
• The instrument briefly displays the prompt rin-L.
• The editing annunciators (ie. GRP, ITM, etc.) will flash for up to
five minutes while the instrument searches for activity. During
this period, the instrument also disables the RS-232
communications.
• Activity Located: If the instrument is successful in locating
activity, the editing annunciators will continue to flash during the
entire period of communications.
• No Activity Located: If the instrument fails to locate activity, the
opto-LINK will be disabled and the editing annunciators will stop
flashing. The instrument will also revert back to the normal
RS-232 communications (ie. the SERIAL:TYPE setting will be re-
activated).
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6.Connections
6.1. Cable Connections
• All cable connections are made to the rear of the instrument
using screwless terminals.
• Wires must be stripped of insulation by at least 10mm.
• To install, depress the orange lever beside the terminal
required and push wire into the hole. Release the lever and
pull gently on the wire to ensure it is securely trapped in the
terminal.
6.2. DC Power (DC PWR + , DC PWR –)
• The DC supply need not be regulated, provided that it is free
of excessive electrical noise and sudden transients.
• The instrument can be operated from a high quality plug-
pack as long as there is sufficient capacity to drive both it
and the load cells.
6.3. Load Cell Connection
The instrument may be connected for either 4-wire or 6-wire
operation. For more information, refer to BUILD:CABLE
setting page 17.
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6.3.1. 4-Wire Connection
The minimum connectivity requirements are the connection of
four wires (ie. Excitation + and – along with Signal + and –).
The BUILD:CABLE option must be set to 4 to allow for 4-wire
connection.
6.3.2. 6-Wire Connection
The excitation and signal lines are connected the same as for
a 4-wire installation.
The BUILD:CABLE option must be set to 6 (the default) to
allow for 6-wire connection.
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