Compaq MTEK6000 User Manual
MTEK6000 SERIES USER'S MANUAL
MTEK6000 SERIES
Electronic Flow Corrector & Monitoring
Devices
Installation and Operating Instructions
January 2002
Part # 900315
January 2002
MTEK6000 SERIES USER'S MANUAL
TABLE OF CONTENTS
Chapter 1: Overview 1-1
Overview ....................................................................................................... 1-1
Hazardous Locations .................................................................................... 1-1
Compliance ………….................................................................................... 1-2
Warranty ………………................................................................................. 1-2
Security Options ………………..................................................................... 1-2
Chapter 2: Installation 2-1
Unpacking ..................................................................................................... 2-1
Initial Check-Out ........................................................................................... 2-1
Power for the MTEK6000.............................................................................. 2-2
Optional Power Supplies .........................................................…................. 2-2
Mounting the Instrument on the Meter ......................................................... 2-2
Setting Up the Index Assembly .................................................................... 2-3
Unit and Index Rotation ....................................................................…… . 2-4
Counter Masking ………………………………………………………………… 2-4
Pulse Input to the MTEK6000.....................................................................… 2-5
Wall and Pipe Mounting ..............................……........................................... 2-5
Transducers in the MTEK6000 ..................................................................... 2-7
Connecting the Pressure Tubing .................................................................. 2-7
Installing the Thermal (Temperature) Probe ................................................. 2-9
Installing the Pulse Output Wiring ................................................................. 2-10
Communications ........................................................................................... 2-12
RS-232C Serial (Direct) Communications ...............................…............ 2-12
Modem Communications ……………………........................................... 2-12
Connecting the Telephone Line ……………............................................ 2-12
Grounding ..................................................................................................... 2-15
Chapter 3: Operating Modes 3-1
Sleep / Wake-up Mode .................................................................................... 3-1
Display Mode ................................................................................................. 3-1
Alarm Mode ................................................................................................... 3-2
Viewing and Clearing Alarms With the Magnet ....................................... 3-2
Memory (History Logging) ....................………….......................................... 3-5
Configuration Mode ....................................................................................... 3-6
Virtual Keypad and External Keypad Operation ....................................... 3-6
Editing Parameters ................................................................................... 3-6
Assigning Function Keys .......................................................................... 3-8
Audit Trail ................................................................................................. 3-8
Wake-up On Pulse ................................................................................... 3-8
January 2002
MTEK6000 SERIES USER'S MANUAL
Analog Sampling ……..................................................................……..…. 3-8
Special Key Combinations …………………............................................... 3-9
Assigning The Number of Displayed Digits .............................................. 3-9
Viewing and Clearing Alarms from the Keypad ....................................... 3-9
Calibration Mode ........................................................................................... 3-10
Calibrating the Pressure Transducer ....................................................... 3-10
Calibrating the Temperature Transducer .................................................. 3-11
Calibrating the Differential Pressure Transducer ...................................... 3-12
Section 4: Optional Equipment 4-1
Analog Output …………............................................................................... 4-1
MTEK6000 Analog Output Specifications …...................................................... 4-3
Installing the Analog Output Loop …............................................................. 4-3
Calibrating the Analog Output …................................…............................... 4-3
Section 5: Maintenance and Software Packages 5-1
Enclosure Maintenance ............................................................................... 5-1
Changing the Battery ................................................................................... 5-1
Calibration .................................................................................................... 5-1
PcGas Meter Reader …................................................................................. 5-2
PcGas Meter Utility ……................................................................................ 5-2
PcGas Customer Monitor .............................................................................. 5-2
MTEK Manager.................................................................................... ......... 5-2
DC2000 ........................................................................................................ 5-3
Appendix A : Process Configuration Standard A-1
Appendix B : Calculations B-1
Appendix C : Parameter Description C-1
Appendix D : Board Jumper Positions D-1
Appendix E : Certifications (CSA, UL, FCC drawings / statements) E-1
Appendix F : Warranty Information F-1
Appendix G : TII Telephone Circuit Surge Suppressor G-1
Appendix H : Hazardous Area Installation Control Drawings H-1
January 2002
MTEK6000 SERIES USER'S MANUAL
List of Figures
Figure 1-1, MTEK6000 Exterior View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Figure 1-2, MTEK6000 Interior View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Figure 2-1, Power Connection and Configuration . . . . . . . . . . . . . . . . . . . . . . . 2-1
Figure 2-2, Index Box Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Figure 2-3, Base Plate showing unit and index rotation . . . . . . . . . . . . . . . . . . 2-4
Figure 2-4, Uncorrected counter masking for 8-digit counter . . . . . . . . . . . . . . 2-4
Figure 2-5, Wall Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Figure 2-6, Pipe Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Figure 2-7, Pressure Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Figure 2-8, Typical Installation for MTEK6000 EFC . . . . . . . . . . . . . . . . . . . . . . 2-8
Figure 2-9, Typical Installation for MTEK6000 EFM . . . . . . . . . . . . . . . . . . . . . . 2-8
Figure 2-10, Temperature Probe Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Figure 2-11, Pulse Output Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Figure 2-12, Corrector Board Connector and Jumper Configuration Diagram . . 2-14
Figure 3-1, Optional Keypad and Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Figure 4-1, Analog Output Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
List of Tables
Table 2-1, Thermowell Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Table 2-2, Activity Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Table A-1, Display mode and function keys for MTEK6000 EFC . . . . . . . . . . . A-1
Table A-2, Standard alarms for MTEK6000 EFC . . . . . . . . . . . . . . . . . . . . . . . . A-1
Table A-3, Historical data stored in MTEK6000 . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Table A-4, Display mode and function keys with auxillary pressure . . . . . . . . . A-2
Table A-5, Standard alarms for MTEK6000 EFC w/ aux. pressure . . . . . . . . . . A-2
Table A-6, Historical data stored in MTEK6000 EFC w/ aux. pressure . . . . . . . A-2
Table A-7, Display mode and func. keys with 2 auxillary pressure . . . . . . . . . . . A-3
Table A-8, Standard alarms for MTEK6000 EFCV w/ 2 aux. pressure . . . . . . . . A-3
Table A-10, Standard display mode & func. keys for MTEK6000 EFC2
with 2 auxillary pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
Table A-11, Standard alarms for MTEK6000 EFC2 w/ 2 aux. pressure . . . . . . . A-5
Tabel A-12, Historical data stored in MTEK6000 EFC2 with 2 aux. pressure . . . A-5
Table A-13, Display mode & func. keys for MTEK6000 EFM w/ aux. pressure . . A-6
Table A-14, Standard alarms for MTEK6000 EFM w/ aux. pressure . . . . . . . . . . A-6
Table A-15, Historical data stored in MTEK6000 EFM w/ aux. pressure . . . . . . . A-6
Table A-16, Display mode & func. keys for MTEK6000 EPR . . . . . . . . . . . . . . . . A-6
Table A-17, Standard alarms for MTEK6000 EPR . . . . . . . . . . . . . . . . . . . . . . . . A-7
Table A-18, Historical data stored in MTEK6000 EPR . . . . . . . . . . . . . . . . . . . . . A-7
Table A-19, Display mode & func. keys for MTEK6000 ETR . . . . . . . . . . . . . . . . A-8
Table A-20, Standard alarms for MTEK6000 ETR . . . . . . . . . . . . . . . . . . . . . . . . A-8
Table A-21, Historical data stored in MTEK6000 ETR . . . . . . . . . . . . . . . . . . . . . A-8
Table A-22, Display mode & func. keys for MTEK6000 EPTR . . . . . . . . . . . . . . . A-9
Table A-23, Standard alarms for MTEK6000 EPTR . . . . . . . . . . . . . . . . . . . . . . . A-9
Table A-24, Historical data stored in MTEK6000 EPTR . . . . . . . . . . . . . . . . . . . . A-9
January 2002
MTEK6000 SERIES USER'S MANUAL
Metretek, Inc. is a registered trademark and MTEK6000, MTEKManager, pcGas, Meter
Reader, Customer Monitor, AutoPoll, Label Changer, Site I.D. Changer, Units Changer
and Virtual Keypad are trademarks of Metretek, Inc. All other trademarks are the
property of organizations not connected with Metretek, Inc. and are used for reference
purposes only. All contents and specifications in this manual are subject to change
without notice.
January 2002
MTEK6000 SERIES USER'S MANUAL
January 2002
MTEK6000 SERIES USER'S MANUAL
CHAPTER 1: OVERVIEW
NOTE: The MTEK6000 is similar in
many respects to the Metretek AE6000
but there are also differences. The
information in this manual applies only to
the MTEK6000.
The MTEK6000 series products are lowcost microprocessor-controlled, electronic
devices for measuring gas flow and volumes
or monitoring pressure and temperature for a
system. With integral pressure and
temperature transducers, the MTEK6000 is
designed for accuracy, reliability, and ease
of maintenance. It can mount directly on a
meter's index plate, on a wall or pipe.
Low-power CMOS design and sophisticated
power conservation circuitry allow the
MTEK6000 to operate one to two years on
battery power.
Two pulse inputs, two status inputs, two
pulse outputs, two external analog inputs
(4-20 mA or 1-5V) and a tamper input are
standard. A large 13-digit LCD display,
with a magnetic scroll switch located on the
enclosure exterior, permits data viewing
without opening the enclosure. Station
parameter display and alarm display can be
performed with only external device. The
standard internal 2400/1200/300 baud
modem provides remote configuration,
calibration, and retrieval of data.
The operator can also use an industrystandard portable computer running
Metretek software to configure parameters.
See Chapter 5 for information on these
packages. The MTEK6000 calculates
corrected volume using AGA-7, AGA-3,
AGA-5 and NX-9 or AGA-8 reports.
Optional equipment includes an external
keypad and display for configuration and
calibration, analog output modules, two
additional pulse outputs, serial port modules,
and various security options.
The MTEK6000 product line consists of six
models that cover a wide range of
applications.
• The MTEK6000 EFCV provides a live
pressure and temperature reading in
volume corrections for Positive
Displacement meters (turbine, etc.)
• The MTEK6000 EFCP provides a live
pressure and a fixed temperature reading
in volume corrections for Positive
Displacement meters (turbine, etc.)
• The MTEK6000 EFM provides a live
pressure and temperature reading in
volume corrections for Orifice meters.
• The MTEK6000 EPR provides a live
pressure reading for monitoring systems.
• The MTEK6000 ETR provides a live
temperature reading for monitoring
systems.
• The MTEK6000 EPTR provides a live
pressure and temperature reading for
monitoring systems.
HAZARDOUS LOCATIONS
The MTEK6000 is listed by Underwriter’s
Laboratories to bear the UL/C-UL mark (US
& Canadian Listing) for use in hazardous
locations.
The intrinsically safe version can be
installed in a Class I, Division 1, Group D
hazardous location when connected through
the intrinsic safety barriers as listed in
control drawing 401061. A copy of this
drawing is shown in appendix E.
The non-incendive version can be installed
in a Class I, Division II, Group D hazardous
location when installed in accordance with
control drawing 401060.
This drawing is also listed in Appendix E.
January 2002 1 - 1
MTEK6000 SERIES USER'S MANUAL
WARNING
Substitution of components may impair
suitability for Class 1, Division 1 and Class
1 Division 2 applications.
COMPLIANCE
The MTEK6000 device complies with Part
15 and Part 68 of the FCC Rule.
See Appendix E for details.
ONE-YEAR WARRANTY
Metretek, Inc. warrants the products it
manufactures to be totally free from any
defects in materials and workmanship under
normal operation and use. Metretek, Inc.
agrees to repair or replace any instrument,
which is defective due to faulty
workmanship or material if returned to our
factory with shipping charges prepaid,
within one year of original purchase. See
Appendix F in the back of the manual for
full warranty details.
SECURITY OPTIONS
The MTEK6000 comes standard with wire
seal screws for the enclosure. Various
security options are available to prevent
unauthorized entry into the enclosure:
A. Tamper screws
B. Padlock quick release latch
C. Padlock quick release latch and door ajar
switch
D. Door ajar (tamper) alarm
1 - 2 January 2002
MTEK6000 SERIES USER'S MANUAL
Figure 1-1 MTEK6000 exterior view
January 2002 1 - 3
MTEK6000 SERIES USER'S MANUAL
Figure 1-2 MTEK6000 interior view
1 - 4 January 2002
Chapter 2: Installation
UNPACKING
1. Thoroughly examine the box to verify it
was not damaged in shipping. If you find
damage, immediately file a claim with the
shipper.
2. Carefully unpack the MTEK6000 from
the shipping container. Verify that the
box contains every item listed on the
shipping order.
INITIAL CHECK OUT
!!! CAUTION !!!
This unit contains certain electronic
components that are sensitive to
electrostatic discharge (ESD); therefore,
proper precautions should be taken
during maintenance operations to avoid
ESD. It is recommended that the
operator first touch the shell of the MS
connector (RS-232C port) on the left side
of the unit to dissipate any accumulated
static charge. Additional precautions
may be taken in order to minimize the
possibility of ESD, including the use of a
grounding wrist strap (i.e., 3M part
number 2214).
3. Examine the label on the left side of the
enclosure. It indicates the serial number
and pressure range for your unit. Verify
that these parameters match your
requirements. If they do not, please
contact your sales representative.
4. Open the front door by loosening the
upper and lower right hand corner screws
or quick release latches of the enclosure
and swinging the door out. See Fig. 1-1.
MTEK6000 SERIES USER'S MANUAL
5. If the unit is battery powered, verify that
jumpers JP 19, 20 and 24 are in the A to B
position. Load the battery pack with fresh
batteries and connect it to the corrector at
position J6. Repeat with the second battery
pack connecting it at position J7 (see Fig.
2-1). Go to step 7.
Figure 2- 1 Power connection and configuration
6. If the unit is powered via an external
power source (UPS or SPS option), make
sure that jumpers JP 19, 20 and 24 are in
the B to C position and connect the DC
power input to the DC input screw
terminals 6 (V+) and 5 (GND) prior to
power up. Refer to Fig. 2-1 for locating
the connection points
WARNING
The operating voltage range from an external
power source is 7-18 VDC. Do NOT exceed
recommended input voltage of 18 VDC.
7. When you first apply power, the display
will show the first two capital letters of the
first label, followed by the value and then
the units. For example, the label
Corrected Volume MCF with a value of
00000000 would be displayed as CV
00000000 MCF.
January 2002 2-1
MTEK6000 SERIES USER'S MANUAL
NOTE
The flashing LCD display indicates an
alarm condition (e.g. First Time Power).
See Chapter 3 for information on alarms.
8. You can now view selected parameter
values on the display by using the scroll
switch. The scroll switch is activated by
the use of a magnet (one is shipped with
the unit). See Display Mode, in Chapter
3, for information about this function.
POWER FOR THE MTEK6000
Two 4.5V alkaline battery packs (part #
1011-0035C-001) supply operating power to
the device for approximately two years of
typical operation. Recommended operating
temperature range for the MTEK6000 when
powered with these packs is –4 F (-20 C) to
130 F (54 C). If this supply should fail, an
on-board back-up battery will maintain the
unit's memory and real time clock. Backup
power can maintain history data for up to
seven years. When back-up power is used,
the unit discontinues normal operation until
the main battery pack is replaced.
Note that only one power source powers
the MTEK6000; connection of battery
packs to a unit configured for external
power does not provide an additional
source of backup power for the unit.
Optional Power Supplies
Several optional supplies are available:
A. Two Single-D Lithium battery packs -
(part # 1011-0039B-001) provides an
approximate life expectancy of two years
over the temperature range -220 F (-300 C)
to 1580 F (70 0 C). Each 3.6V, 13.0 AH
battery pack can be used individually (~
1yr life) or as a pair.
B. MTEK6000 UPS power supply - an un-
interruptible 12 VDC power supply with
battery back up.
C. SPS 50 solar system - 10 to 64 W systems
available with battery backup; while
selected system size depends on
geographic location, degree of sun
exposure, equipment power consumption,
and site obstructions, most MTEK6000
applications only require a 10W system.
MOUNTING THE INSTRUMENT ON
THE METER
1. Check the meter's rotation direction.
Standard setup is clockwise rotation of the
meter output shaft, as viewed from the top.
The rotation of the unit can be changed to
counterclockwise. Also, the input drive
value for the unit can be changed.
2. Align the instrument's index base plate
holes with the corresponding holes in the
meter's index base plate. Secure the unit
by bolting it to the meter. Ensure that the
drive dogs are correctly aligned and not
binding.
3. Plug all unused holes in the index base
plate with the caps provided in the
accessory package.
2-2 January 2002
SETTING UP THE INDEX ASSEMBLY
Output Shaft Rotation
To change the rotation of the output shaft to
counterclockwise (figure 2-2):
1. Loosen set screw e on gear E.
2. Disengage gear E from counter gear D.
3. Tighten set screw e.
4. Loosen set screw c on gear C.
5. Engage gear C with counter gear D.
6. Tighten set crew c.
7. Take care to align the gears properly, and
verify that they turn freely and do not
bind.
Figure 2- 2 Index Box Assembly
Input Drive Value
Fig. 2-2 above shows gearing in the correct
position for 10, 100, 1,000 or 10,000 cubic
MTEK6000 SERIES USER'S MANUAL
feet/revolution (ft3/rev) and 0.1, 1 and 10
cubic meters/revolution (m3/rev). To change
the input drive value to 5 ft3/rev:
1. Loosen set screw a on compound gear A.
2. Lower gear A until its upper teeth engage
the upper teeth of compound gear B.
3. Tighten set screw a.
4. Take care to align the gears properly, and
verify that they turn freely and do not
bind.
When changing a MTEK6000 in the field
3
from a 10, 100, 1,000 or 10,000 ft
meter with a 5 ft
3
/rev drive, the CF per Pulse
In or Meter Drive parameter, must be
changed to a value of 10 using software or the
optional, external keypad / display.
NOTE
Electronic parameter CF per Pulse In or
Meter Drive should always equal the meter
drive value EXCEPT for 5 ft3/rev meters
which should be set at 10. When switching to
5 ft3/rev, the gear ratio is adjusted so that two
revolutions of the input drive gear result in
one revolution of the magnet and hub
assembly, which sends a pulse signal to the
instrument that equals 10 ft3/rev. The value
can be changed using software or the
optional, external keypad / display (see
Appendix A for addressing).
To change the input drive value to 10, 100,
1,000 or 10,000 ft3/rev, return compound gear
A to its original, factory-set position. Change
the CF Per Pulse In or Meter Drive
parameter using software or the optional,
external keypad / display (see Appendix A for
addressing).
/rev drive
January 2002 2-3
NOTE
When you have changed the input drive
The index box assembly contains a reed
value, be sure to remove the existing drive
switch (G) and a corresponding magnet (F).
value label from the window and replace it
The magnet should be positioned so there is
with a new label that states the current input
0.07" - 0.1" clearance between the magnet and
drive value. For your convenience,
switch. To adjust this clearance, refer to Fig.
Metretek, Inc. supplies extra labels with the
1-3 on page 9 and do the following:
MTEK6000 EFC.
Magnet Sensor Adjustment
The index box assembly contains a reed switch
(G) and a corresponding magnet (F). The magnet
should be positioned so there is 0.07”-0.01”
clearance between the magnet and switch
(1.78mm-0.25mm). To adjust, refer to Figure 2-2
and do the following:
1. Loosen set screw h.
2. Move the magnet until clearance is
correct.
3. Retighten set screw h.
4. Verify the clearance is still correct.
If not, repeat the procedure.
MTEK6000 SERIES USER'S MANUAL
Figure 2- 3 Base Plate Showing Unit &
Index Rotation
UNIT AND INDEX ROTATION
In general, the label side of the index base
plate (front) should face the front of the meter.
This allows the MTEK6000 EFC to also face
the front of the meter. In certain applications,
the MTEK6000 EFC and index can be
installed 1800 from the standard position so
that viewing of the MTEK6000 EFC is
acceptable. To rotate the unit and index, refer
to Fig. 2-3 and do the following:
1. Remove the 4 bolts at location A.
2. Rotate the base plate 1800 clockwise so
that the front label side is now facing the
rear of the unit.
3. Insert the 4 bolts into location B with the
two lockwashers as shown. Fig. 2-3
shows the index orientation after the
rotation is completed. (DO NOT
OVERTIGHTEN).
COUNTER MASKING
Figure 2- 4 Uncorrected Counter
Masking for Eight Digit Counter
2-4 January 2002
PULSE INPUT TO THE MTEK6000
Magnetically operated reed switches inside
the meter drive assembly send electronic
pulses as the drive turns. These pulses
represent uncorrected meter volume to the
instrument.
To eliminate false counts that can result from
the reed switch "bounce”, the MTEK6000
uses a set/reset, dual-reed switch
configuration. An input pulse is generated
only when the opening and closing of the
first switch is followed by the opening and
closing of the second switch. The main
counter input is also monitored for fault
conditions. When enabled, if any of the dualreed switches should be defective, the input
pulses will automatically switch to the
working counter input and the MTEK6000
will generate a Faulty Counter alarm. This
function is enabled if the Counter Fault
Monitoring parameter is set to 1 and
disabled if set to 0. The default value is 0 for
disable. See Appendix A for addressing.
For units supplied with indexes, the main
counter input is terminated at the UNIT
(BLK) MTA connector and the uncorrected
pulse wiring at the FIELD (WHT) MTA
connector at the lower right hand corner of
the corrector printed circuit assembly.
Metretek, Inc. can supply a remote index
similar to the main index or a sandwich
pulser for wall or pipe mount installations.
When the sandwich or external pulser option
(1, 10, 20, or 50 pulse per revolution) is
supplied, connect the N.O., COM, and N.C.
wiring to terminals 32 (SET1), 33 (GND) and
34 (RST1) respectively.
The pulse input is software selectable for
Form C (three-wire) or Form A (two-wire)
connection.
MTEK6000 SERIES USER'S MANUAL
Software is used to configure the pulse input.
The optional, external keypad / display can
also be used to configure the pulse input and
other parameters. See Appendix A for
addressing.
WALL AND PIPE MOUNTING
The MTEK6000 can also mount directly on a
wall or on a pipe. Mounting feet are provided
for wall mounting. See Figure 2-5.
For pipe mounting, approximately 10 feet of
2-inch rigid iron pipe or conduit is required.
The pipe should be installed 18 to 24 inches in
the ground in 6 inches wide concrete. The
length of the 2-inch mounting pipe or conduit
will vary according to the site, but typical
installations place the MTEK6000 at about
eye level for ease of operation. Mounting
plates are provided for pipe mounting. Secure
the MTEK6000 to the pipe with the provided
U-bolts, washers and hex nuts. See
Figure 2-6.
January 2002 2-5
MTEK6000 SERIES USER'S MANUAL
Figure 2- 5 Wall Mounting
Figure 2- 3 Wall Mounting
Figure 2- 4 Pipe Mounting
2-6 January 2002
TRANSDUCERS IN THE MTEK6000
The MTEK6000 uses a precision strain gauge
pressure transducer mounted inside the unit,
combining maximum accuracy with low
power consumption. To sense gas
temperature, the MTEK6000 employs a
highly linear and stable device, a platinum
resistive temperature detector (RTD). Case
temperature sensing is accomplished with an
on-board precision reference integrated
circuit (IC).
CONNECTING THE PRESSURE
TUBING
WARNING
You must DEPRESSURIZE THE METER
and its associated piping before you make
pressure piping connections. FAILURE to
do so may result in EXPLOSION and FIRE,
causing SERIOUS PERSONAL INJURY
and PROPERTY DAMAGE.
Do NOT attempt to connect any piping or
fittings to a meter or pipe under pressure.
Do NOT SMOKE while connecting gas or
test pressure to the meter.
Note
Federal Standard 192.02 requires a shut-off
valve between the pressure source and the
instrument. A needle valve is supplied with
the optional pressure piping kit for this
purpose. Its rating is 1,500 PSIG MAOP.
MTEK6000 SERIES USER'S MANUAL
As a minimum requirement, connect the
pressure tubing as shown in Fig. 2-7. An
optional pressure tubing connection kit (part #
2019-0009B-001) can be shipped with each
instrument. Fig. 2-8 is the recommended
pressure installation for ease of operation.
Additional piping and valve are required for
the installation and are not supplied. Use
Teflon tape or pipe seal compound on all
threaded connections. The tubing supplied in
the kit may be longer than you need for your
installation. You can cut or coil the tubing,
but do not make any sharp bends in it
(minimum radius is 3/4"). Tighten all the
connections and perform a leak test once the
meter and instrument are pressurized.
Figure 2- 5 Pressure Connections
January 2002 2-7
MTEK6000 SERIES USER'S MANUAL
Figure 2- 7 Typical Installation for MTEK6000 EFC
Figure 2- 6 Typical Installation for MTEK6000 EFM
2-8 January 2002
INSTALLING THE THERMAL PROBE
A thermal (temperature) probe is connected
to the MTEK6000 by a 6-foot (2-meter)
cable. You should coil excess cable to
prevent possible damage. The probe is
designed to fit into standard Metretek, Inc.
thermowells. Optional 15-foot (4.5 meter)
and 30-foot (9-meter) cables are available.
See Fig 2-10.
To install the thermal probe, use the supplied
temperature probe adapter. Refer to Table
2-1. Insert the probe into the thermowell and
tighten the securing nut FINGER TIGHT
only. The standard adapter is a ½” fitting.
Users retrofitting instruments requiring the
5
/8” adapter can order the adapter from
Metretek, Inc.
Oil or ethylene glycol (antifreeze) should be
used to improve heat transfer from the
thermowell to the thermal probe. Be aware,
however, that it is possible to cause hydraulic
crushing of the probe. This can happen when
there is little or no air in the thermowell
above the probe. When the probe is fastened
by tightening the securing nut, the space in
the well decreases as the probe enters. As a
result, hydraulic pressure may rise high
enough to cause damage. If you use oil or
antifreeze, make sure there is enough air
in the thermowell above the fluid to
prevent crushing the probe.
It is recommended that the thermowell be
installed in the meter outlet pipe one or two
diameters from the meter outlet. The
insertion length of the thermowell must be
sufficient to extend at least to the pipe center,
but no further than 75% of the pipe’s
diameter. Thermowells should not be situated
where they will be exposed to direct sunlight.
A sunshield should be used for installations
where this cannot be avoided.
MTEK6000 SERIES USER'S MANUAL
Figure 2- 8 Temperature Probe Connection
Table 2-1: Thermowell Part Numbers
Pipe Size Insertion
Length
4 in.
6 in.
8 in.
12 in.
14 in.
16 in.
20 in.
2 ½ in. 5340-0373 ½” NPT
4 ½ in. 5340-0372 ½” NPT
7 ½ in. 5340-0371 ½” NPT
10 ½ in. 5340-0370 ½” NPT
Thermowell
Part Number
5340-0377 ¾” NPT
5340-0384 1” NPT
5340-0376 ¾” NPT
5340-0383 1” NPT
5340-0375 ¾” NPT
5340-0379 1” NPT
5340-0374 ¾” NPT
5340-0378 1” NPT
January 2002 2-9
MTEK6000 SERIES USER'S MANUAL
INSTALLING THE PULSE OUTPUT
WIRING
The MTEK6000 comes standard with a
board installed that provides two optically
isolated pulse outputs. These outputs are
configurable as either Form C or Form A
type outputs. An alternative version of the
board is available that provides four pulse
outputs. Both versions of the board also
provide terminal block positions to access the
uncorrected mechanical volume switch
output of the index. See Fig. 2-11 for pulse
output wiring. The option boards optical
coupling and physical arrangement of
circuitry provide a minimum of 1,500 volts
of isolation.
Wiring connections for the pulse outputs are
made from terminals 19 to 17 for Pulse
output #1, terminals 16 to 14 for Pulse output
#2, terminals 13 to 11 for Pulse output #3 and
terminals 10 to 8 for Pulse output #4. See
Fig. 2-11 for pulse output wiring location and
Form C vs. Form A jumpering. Note that
proper operation of the Form C pulse output
configuration requires that a constant wetting
current be available at both the normally open
and normally closed terminals by the device
attached to that pulse output.
The corrected volume pulse output generated
can be scaled to any desired volume value.
Typical values are 10, 100, 1,000, or 10,000
cubic feet per pulse, or the metric equivalents.
The scaling factor is selected by the Pulse
Out CF Per Pulse parameters. The pulse
duration (width) is also configurable up to
5,000 ms. The Pulse Output On-Time and
Off-Time parameters determine the pulse
time for corrected volume, uncorrected
volume and pressure corrected volume pulses.
The Alarm Pulse Time (ms) parameter
determines the pulse time for alarm outputs.
See Appendix C in this manual or Meter
Reader Help screen for description of this
parameter.
Figure 2- 9 Pulse Output Wiring
2-10 January 2002
Volume and Alarm Pulse Specifications
1. All pulse outputs are isolated from
ground and each other. Provides 1,500
volts between input and output and
between contact sets.
2. Form C: DC load only, 125mWdc max,
50Vdc max
Form A: AC or DC load 800mW max,
400V max., 100mA max, continuous
3. Configurable pulse width from 1 to 5,000
milliseconds (ms).
Uncorrected Mechanical Pulse Output
(Units with a Metretek Index)
The uncorrected mechanical pulse output is
derived from the Form C reed switch in the
index assembly. As the magnet in the drive's
assembly rotates past the Form C switch, a
single uncorrected volume pulse output is
generated. Volume per pulse is determined
by the drive rate. Each uncorrected volume
pulse is equal to the gas flow for one shaft
revolution.
The pulse output can be wired as a Form A or
Form C switch output. Use terminals 25
(normally open), 24 (common) and 23
(normally closed) for Form C output. To
wire as Form A, use terminals 25 (normally
open) and 24 (common) and make no
connection to terminal 23 (normally closed).
The duration (width) of each pulse is equal to
the length of time the reed switch is in its
closed position (depends on the rate of the
meter). No configuration is necessary to
enable the uncorrected mechanical pulse
output.
MTEK6000 SERIES USER'S MANUAL
Uncorrected Pulse Output Specifications
1. 3W contact rating (power dissipation).
2. Maximum switching voltage up to 30V.
3. Maximum switching current up to 200mA.
4. Maximum continuous current @ 500 mA.
NOTE
All pulse outputs are disabled in the standard
unit to conserve power. The Alarm pulse
output is a one time pulse output signal. No
other alarm pulse will be generated until the
alarm is cleared and becomes active again.
January 2002 2-11
MTEK6000 SERIES USER'S MANUAL
COMMUNICATIONS
To communicate with the MTEK6000, the
Site ID (RUID) in the device must be the
same as the Site ID entered in the software
package. The Site ID is a unique
identification number (1 to 65,535) that
allows the Metretek, Inc. software packages
to communicate with the MTEK6000. The
default Site ID number is 1. Software can be
used to enter a number other than the default.
Refer to the respective software User’s
Manual for additional information on these
and other functions. The optional external
display and keypad can also be used to
change the Site ID from its default value.
RS-232C Serial (Direct) Communications
(9600 Baud)
In its standard configuration, the MTEK6000
is equipped with one RS-232C serial port.
An optional RS-232C serial cable (Part #
1002-0235C-001) is required for direct
communications. The serial port allows an
operator to configure and collect data with an
industry-standard (IBM, Compaq, etc.)
portable computer (software is required for
this function). The MTEK6000
communicates at 9600 baud with portable or
host computers connected directly to the
serial port. When communicating with the
MTEK6000, Busy will be displayed on the
display. Table 2-2 shows the diagnostic
features of the Activity indicator when the
cable is connected.
WARNING
The MTEK6000 will not go to sleep if the
RS-232C serial cable is left connected and
battery life will be affected drastically.
Modem Communications (2400 Baud)
NOTE
This modem complies with Part 68 of the
FCC Rules. See Appendix E for details.
The internal Hayes compatible modem offers
automatic answering and dialing. The modem
communicates at 2400/1200/300 baud. The
modem by itself can only be used in areas
classified as non-hazardous or Class I,
Division 2. To maintain the MTEK6000’s
intrinsic safety classification in more
hazardous areas such as Class I, Division 1, an
optional Phone Line Interface (PLI) must be
used. This device removes the high voltage
ring-detect circuitry from the device and
brings low-level signals into the hazardous
area through intrinsic safety barriers.
Connecting the Telephone Line
If the MTEK6000 is situated in a nonhazardous or Class I, Division 2 area, connect
the tip and ring wires from the telephone
company's terminal box to the TIP and RING
terminals (1 and 2 respectively).
If it is installed in a Class I, Division 1, Group
D area, install the unit per the reference
drawing shown Appendix E. Also see
Appendix D for proper jumper settings.
Installation of the phone line surge protection
device provided with the MTEK6000 is
strongly recommended when the MTEK6000s
internal modem is connected to a telephone
line. The device is a separate gas tube type
phone line surge suppressor and is housed in
its own enclosure suitable for mounting
directly to a telephone pole or other structure.
2-12 January 2002
MTEK6000 SERIES USER'S MANUAL
Table 2-2 Activity Indicator
MTEK6000 Function (RS232 cable connected) Activity Indicator
RS-232C cable connected 1 long blink
Set #1 Pulse received 1 short blink
Reset #1 Pulse received 2 short blinks
Set #2 Pulse received 3 short blinks
Reset #2 Pulse received 4 short blinks
RS-232C cable disconnected 3 long blinks after a few seconds delay
January 2002 2-13
MTEK6000 SERIES USER'S MANUAL
Figure 2- 10 Corrector Board connection and jumper configuration diagram
2-14 January 2002
GROUNDING
The information presented here is merely a
guideline to help customers avoid surge damage
to the MTEK6000. None of these guidelines are
to be construed as replacing or superseding
rules and practices defined by the National
Electrical Code (NEC),
or the Classification of
Gas Utility Areas for Electrical Installations
guidelines, as published by the American Gas
Association (AGA) or other regulatory agency.
A sound understanding of Federal, State and
Local laws is fundamental to proper and legal
installation work.
The MTEK6000 is configured so that the
majority of the internal metal components
within the device are connected (common) to
the gas pipeline / meter to which the
instrument is attached. Additionally, a large
surge bypass MOV device has been provided
inside the MTEK6000 that provides an
alternate path (rather than through the
correctors electronics!) for surge current to
flow. One side of this device connects to the
pipe through the index & meter. The other
side is brought out through the enclosure to
an external copper grounding lug. The
separation of these two points allows for the
existence of cathodic protection voltage
levels on the pipe (typically about 1 volt
below the surrounding soil) while still
providing a path for surge current to safely
bridge these points, find earth ground, and
not damage the instrument.
If the MTEK6000 is to be connected to a
telephone line (either on-board or through a
PLI mounted in a safe area) or connected to a
UPS (AC power supply), then the external
ground lug provided on the MTEK6000
should be connected to earth ground. If the
unit is not making connection to the phone
co. lines, power co. lines, or other external
equipment, then connecting the unit to an
earth ground simply introduces a path for
surges that otherwise would not exist. In this
MTEK6000 SERIES USER'S MANUAL
case it is of no benefit to earth ground the
MTEK6000’s external lug.
When the external ground lug of the
MTEK6000 is to be used, it should be
connected to a common ground rod (or "bed"
of grounding equipment) to which is securely
tied all other equipment chassis, metal
cabinets, and intrinsic ground brackets. Solid
copper ground wire or ground strapping of an
approved size and type must be used to tie this
equipment to the rod. If possible, it is far
preferable that all external equipment be tied
to a single site ground, that the distance
between the MTEK6000 and external
equipment is kept at a minimum (less than 20
feet is best), and the ground rod be located no
farther than halfway between the MTEK6000
and the other equipment.
If separate site grounds must be used, as when
the MTEK6000 and UPS are separated by a
distance greater than 20 feet, Metretek can
provide an optional device, the SPM (Surge
Protection Module). A pair of SPMs can
properly protect both devices in this
circumstance. Control drawings detailing
proper wiring of SPMs (including hazardous
areas) are included with the SPM.
REFERENCES
• National Electrical Code (NFPA):
Article 250 – Grounding
Articles 500 & 501- Hazardous
(Classified) Locations
Article 504 - Intrinsically Safe Systems
• The IAEI Soares' Book on Grounding
(Available through the NFPA)
• PolyPhaser Corp. Catalog of Lightning /
EMP & Grounding Solutions Minden,
Nevada (800) 325-7170
January 2002 2-15
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