Landis+Gyr CASHPOWER SABRE MK 5 User manual

Prepayment Electricity Metering System
DOMESTIC
Landis+Gyr
CASHPOWER SABRE MK 5
USER’S GUIDE

Filename: User Guide Sabre Mk5 Rev 0.0.doc Page 2 of 28
Revision History
Revision Date Name/phone Comment
a 2007-12-05 Paul Moolman Document creation
0.0 2008-11-06 Dave Tarr Updated for new Landis+Gyr branding and update of
product pictures
Abstract
This document is the User Guide for the Cashpower Sabre Mk5 Common Base keypad prepayment
meters, designed and developed by Landis+Gyr (Pty) Ltd., South Africa
Referenced Documents
None
Landis+Gyr (Pty) Ltd.
60 Electron Avenue, Isando, Gauteng
PO Box 281, Isando, 1600, South Africa
Phone: [phone]
Fax: [phone]
Email: [email protected]
Internet: www.za.landisgyr.com

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Table of Contents
1. INTRODUCTION 5
2. ABBREVIATIONS 5
3. FRONT PANEL LAYOUT 6
3.1. Keypad 7
3.2. Liquid Crystal Display (LCD) 7
3.3. Rate of Consumption Indicator (Rate LED) 7
3.4. Meter Label Set 7
3.5. Anti-tamper sealing clips 7
4. LIQUID CRYSTAL DISPLAY (LCD) 8
4.1. Layout (what the icons mean) 8
4.2. Typical Operational Displays 9
4.3. Happy and Sad Faces 9
4.4. Contactor Status Indicators 9
4.5. Information Mode Indicator 10
4.6. Power Indicator (W) 10
4.7. Power Indicator (kWh) 10
4.8. Remaining Credit Indicator 10
4.9. Alarm Indicator 10
5. METER OPERATION 11
5.1. General 11
5.2. LCD Indications During Normal Operation 11
5.3. Entering Prepayment Vouchers via the Keypad 11
5.4. Voucher Processing 12
5.4.1. Incomplete Voucher 12
5.4.2. Complete Voucher 13
5.4.2.1. Voucher Accepted 13
5.4.2.2. Voucher Accepted as a Valid Key Change Number 13
5.4.2.3. Voucher Not Accepted By Meter 13
5.4.2.4. Duplicate Voucher 13
5.4.2.5. Expired Voucher 13
5.4.2.6. Voucher Overflow Rejection 13
5.5. Voucher Decryption and Processing 14
5.5.1.1. Electricity Credit Voucher 14
5.5.1.2. Set 1st Dispenser Key Voucher 14
5.5.1.3. Set 2nd Dispenser Key Voucher 14
5.5.1.4. Clear Tamper Voucher 14
5.5.1.5. Set Power Limit Voucher 15
5.5.1.6. Set Credit Alarm Levels Voucher (Proprietary Voucher) 15
5.5.1.7. Clear Credit Voucher 15
5.5.1.8. Initiate Dispenser Test Voucher (Meter Non-Specific Voucher) 15
5.5.1.9. Commissioning Voucher (Non Meter-Specific, Proprietary Voucher) 15
5.5.1.10. Commissioning Voucher (Meter-Specific, Proprietary Voucher) 16
5.5.1.11. Decommissioning Voucher (Meter-Specific, Proprietary Voucher) 16
5.5.1.12. Set Options Register (Meter-Specific, Proprietary Voucher) 16
5.6. Commissioning and Decommissioning the Meter 16
5.7. Power Limiting 16
5.8. Automatic/Manual Load Reconnection 17
5.9. Disconnect on Power Failure 17
5.10. Anti-tamper Features 18
5.10.1. General 18
5.10.2. Anti-Tamper Switch 19

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5.10.3. Reverse Energy Detection 19
5.10.4. Magnetic Tamper Detection 19
5.10.5. Resetting a Tamper Condition 19
5.11. Virtual Token Carrier (VTC) Interface 20
6. INFORMATION FUNCTIONS 21
6.1. Meter Number (Register 000) 22
6.2. Instantaneous Power (Register 001) 22
6.3. Current Credit Register (Register 002) 22
6.4. Total Units Counter (Register 003) 23
6.5. Accumulated Credit Register (Register 005) 23
6.6. Current 30-Day Consumption (Register 008) 23
6.7. Previous 30-Day Consumption (Register 009) 23
6.8. Low Credit Level (Register 012) 23
6.9. High Credit Level (Register 013) 23
6.10. Power Limit Level (Register 014) 23
6.11. Meter State Register UPPER (Register 030) 24
6.12. Meter State Register LOWER (Register 031)124
6.13. Fixed Option Register (Register 033) 25
6.14. Changeable Option Register (Register 035) 25
6.15. Volatile Meter State – Upper (Register 036) 26
6.16. Volatile Meter State – Lower (Register 037) 26
6.17. Software Version Number (Register 048) 27
6.18. Power-Fail Counter (Register 050) 27
6.19. TN and ID Number of Last CTN Entered (Register 054) 27
6.20. ID Number of Last CTN Entered (Register 055) 27
6.21. Value of Last CTN Entered (Register 056) 27
6.22. Key Revision and Key Type (Register 057) 27
6.23. Tariff Index (Register 058) 27
6.24. Current Credit Register - 10Wh Resolution (Register 059) 27
6.25. SGC Register (Register 060) 27
6.26. Total Units Counter (10 Wh Resolution) (Register 061) 27
6.27. Last fifty 20 digit numbers entered into the meter 27
6.28. Customer Information Mode 28

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1. INTRODUCTION
Cashpower Sabre ED Mk5 is a single phase “common base” prepayment meter specially designed
to meet Eskom's prepayment metering requirements. This meter is most suited to new reticulation
and is directly and easily interchangeable with meters from other manufacturers using the standard
common base.
The plug-in base, which also conforms to Eskom's specifications, allows the commissioning of the
meter to be done after the installation of the base, thereby adding flexibility and installation
convenience. Included with the base is a Metal Oxide Varistor (MOV), which ensures that the meter
complies with the stringent Eskom specifications for the protection of prepayment meters.
The base is optional and can be supplied separately to the meter.
Cashpower Sabre has an optional tamper facility, which will enable the meter to detect when it is
being drawn out of the common base.
Figure 1: The Cashpower Sabre Prepayment Meter
2. ABBREVIATIONS
LCD Liquid Crystal Display
LED Light Emitting Diode
ED Electricity Dispenser

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3. FRONT PANEL LAYOUT
The Sabre front panel comprises a non-tactile, 12-key keypad with audible feedback for the entry of
tokens and accessing of various information registers, and a custom Liquid Crystal Display
Figure 2: Cashpower Sabre Front Panel Features
Figure 3: Close-up of the Cashpower Sabre membrane and LCD display features
Anti tamper
sealing clip
Liquid Crystal
Display (LCD)
Anti tamper
sealing clips
Membrane with
keypad and icon
display indicators
LCD Display
with icons
LCD icons
LCD icon
indicators
Label with
meter serial
number and
barcode
Information
key
“Rate of Use”
Indicator
Meter label with
meter type and
specification
information
Backspace
key
12 Digit Keypad

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3.1. Keypad
The 12-key keypad enables the entry of vouchers and the accessing of various information
registers. Key-presses are acknowledged with an audible beep.
3.2. Liquid Crystal Display (LCD)
The LCD normally displays remaining credit. The LCD also displays the scrolling in of
keypad entries and various information functions. For details of the LCD icons, refer to
paragraph 4.
3.3. Rate of Consumption Indicator (Rate LED)
This red LED provides the reference output for verifying the meter’s metrological accuracy.
It also provides a visual indication of rate of power consumption.
The meter constant for the Sabre ED meter is set to 1000 impulses/kWh. The rate LED will
therefore flash 1000 times for every kWh of energy consumed.
3.4. Meter Label Set
The meter label set shows the unique meter numbers, type number, and its associated
parameters. The label on the right hand side of the keypad contains the meter serial number
and bar code while the label on the left hand side of the keypad contains the meter type
number and technical specifications such as voltage, maximum current, frequency etc.Anti-
tamper sealing clips
3.5. Anti-tamper sealing clips
On installation, the Sabre is secured to its socket base with two screws. These screws are
then covered with a plastic anti tamper clip and finally sealed with utility-sealed wire seals on
the front of the meter. The use of these utility seals ensures that there are visible signs of
tampering from the front of the meter.

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4. LIQUID CRYSTAL DISPLAY (LCD)
4.1. Layout (what the icons mean)
The LCD is designed to give a clear and unambiguous visual indication of the important
meter functions by means of language-independent pictograms. The LCD has three
functional blocks: a numerical display for displaying various values such as remaining credit
and power limit level, various pictograms such as the credit wedge, and pointers which point
to pictograms on the membrane.

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4.2. Typical Operational Displays
4.3. Happy and Sad Faces
These two icons are used in combination to give a quick visual indication of good and bad
status. For example, if the meter were operating normally, the happy face would be on.
However, if it were to be tampered, the sad face would come on. Similar responses would
apply during token entry e.g. entering an invalid CTN would result in the sad face flashing for
a short period of time.
4.4. Contactor Status Indicators
Two icons are used to indicate the status of the load-switch (an internal latching relay).
Under normal operating conditions i.e. with the meter in credit, the load switch will be ‘closed’
and power is supplied to the consumer. A second ‘open’ indicator is used to indicate that the
latch is open, e.g. when credit expires.

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4.5. Information Mode Indicator
This icon turns on in response to pressing the i-key on the keypad. It indicates that the
meter is in information mode and the contents of various registers can be viewed. Refer to
paragraph 6.
4.6. Power Indicator (W)
This function is used whenever the displayed units represent power (W), such as
instantaneous power, or power limit setting. It applies to both normal meter operation as well
as when viewing registers via the information mode.
4.7. Power Indicator (kWh)
This function is used whenever the displayed units represent power (kWh). It applies to both
normal meter operation as well as when viewing registers via the information mode.
The icon can be OFF or flashing. The icon will be ON when the latch is closed and the load
exceeds the minimum creep load (typically 40mA)
The icon will be flashing when the latch is open and there is no load
4.8. Remaining Credit Indicator
This ‘wedge’ provides a quick visual indication of the remaining credit in the meter.
NB: The actual credit levels at which the individual bars in the ‘wedge’ icon toggle are
personalised at the time of manufacture but can be changed at any time with a maintenance
token (refer to paragraphs 6.8 and 6.9 for details of viewing the credit level settings).
The indicator functions as follows:
•All four credit wedge icons are displayed if the value in the current credit register is
above the preset high credit level.
•The three smallest wedge icons are displayed if the value in the current credit register
is somewhere between the preset low credit level and high credit level.
•The two smallest wedge icons are displayed if the value in the current credit register
is somewhere between the preset low credit level and half of that level.
•The smallest wedge icon is displayed if the value in the current credit register is
somewhere between zero and half of the preset low credit level.
•All the credit wedge icons will be off when the meter runs out of credit (zero or
negative values).
NB: When the remaining credit level reaches zero, the numeric display indicates 0.0 kWh.
If, for any reason, the credit level is decremented below zero i.e. negative, the display
indicates 0. kWh. This is the case if the meter has been personalised not to display
negative credit – refer to paragraph 6.13. Although there is no negative value displayed, it
gives a quick visual indication that a negative value is present (it is a requirement of some
utilities to not show a negative credit value to consumers because in all likelihood it
indicates tampering with the meter).
4.9. Alarm Indicator
This is a ‘low credit’ warning indicator that turns on if the current credit register value is
greater than zero, but less than half the low credit level. Under these conditions it is
displayed in conjunction with the smallest credit wedge icon.