SCINTREX ENVI PRO Operation Manual
ENVI PRO
OPERATION MANUAL
Rev.
0 Initial Release 4933 May 2009 AM
Description of
Change
ECO Date of Issue App
2
P/N 788715 Rev. 0
SCINTREX LIMITED
222 Snidercroft Road
Concord, ON, Canada
L4K 2K1
Telephone: +1 905 669 2280
Fax: +1 905 669 6403
e-mail: scintrex@scintrexltd.com
www.scintrex.com
Copyright@SCINTREX Limited 2009. All rights reserved.
No part of this publication may be reproduced, stored in a retrieval system or
transmitted, in any form, or by any means, electronic, mechanical, photo-copying,
recording, or otherwise without prior consent from SCINTREX Limited.
ENVI MAG and WALKMAG are trademarks of SCINTREX Limited.
P/N 788715 Rev. 0 ECO 4933
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Table of Contents
Chapter 1 Preface.................................................................................................1—2
Features ............................................................................................................. 1—2
Upgrades and Options .......................................................................................1—2
Chapter 2 Introduction.........................................................................................2—1
Cold Boot ...........................................................................................................2—1
Instrument Overview ..........................................................................................2—1
Chapter 3 Preparing the ENVI PRO....................................................................3—1
Unpacking ..........................................................................................................3—2
Repacking ..........................................................................................................3—2
Assembly............................................................................................................ 3—2
Connecting the magnetic sensor(s) to the cable............................................3—2
Total-field sensor............................................................................................ 3—2
Installing the terminal protective cover...........................................................3—4
Assembling the sensor / GPS staff................................................................3—5
Staff Mounted Installation............................................................................... 3—5
Back-pack Installation .................................................................................... 3—8
Battery Installation/Exchange....................................................................... 3—10
Using the external battery pack.................................................................... 3—11
Using an external power supply ................................................................... 3—12
Chapter 4 The Instrument....................................................................................4—1
Console Description ........................................................................................... 4—2
Keypad Description ............................................................................................ 4—2
Key Functions ....................................................................................................4—3
Display Screens .................................................................................................4—5
Cursor ............................................................................................................4—6
Display Blocks................................................................................................4—6
Pop-Up Windows ...........................................................................................4—7
Help Screens.................................................................................................. 4—7
Chapter 5 Operating Displays............................................................................. 5—1
Main Operating display ..................................................................................5—1
Instrument setup display ................................................................................5—3
Magnetometer setup display .......................................................................... 5—4
Data Displays ..................................................................................................... 5—8
Numeric data display...................................................................................... 5—8
Graphic data display ....................................................................................5—11
Recall Displays............................................................................................. 5—13
Recall Setup display.................................................................................. 5—13
RECALL DATA display ................................................................................5—14
Modifying the display window....................................................................... 5—15
Auxiliary Functions display ........................................................................... 5—16
Data Output Display ..................................................................................... 5—17
Data output formats...................................................................................... 5—19
NOTES display............................................................................................. 5—19
Information / GPS Setup Display..................................................................5—20
Chapter 6 Setting Up the ENVI MAG ..................................................................6—1
First Time Operation ..........................................................................................6—1
Cold Boot .......................................................................................................6—1
Configuration Menu........................................................................................6—2
HOW TO: ...........................................................................................................6—3
Access the Main Operating Display ............................................................... 6—3
Access Display Sub-Panels/Blocks................................................................ 6—3
Access the Parameter Fields ......................................................................... 6—3
Change Parameters ....................................................................................... 6—3
Select and Enter............................................................................................. 6—4
Line and Station Setup.......................................................................................6—5
Entering the Starting Station .......................................................................... 6—6
Entering the Starting Line............................................................................... 6—6
Instrument Setup............................................................................................6—7
Sample Total-Field Setup (Walkmag or Walkgrad)........................................6—8
Sample Stop-and-Go Gradiometer Setup .................................................... 6—11
Sample Base-Station Setup ......................................................................... 6—14
Information Display ......................................................................................6—17
Note Entry .................................................................................................... 6—19
Display Intensity Control .............................................................................. 6—21
Parameter Lock............................................................................................6—21
Chapter 7 Operating the ENVI PRO....................................................................7—1
Accurate and Meaningful Measurements........................................................... 7—1
Orientation...................................................................................................... 7—1
Effects of gradient .......................................................................................... 7—1
Other sources of noise ................................................................................... 7—2
On the staff..................................................................................................... 7—2
Base-station ................................................................................................... 7—2
Repeated Surveys Lines ................................................................................ 7—3
Magnetometer Operation ................................................................................... 7—4
Walkmag Total-Field/Gradiometer Automatic Mode ......................................7—4
WALKGRAD Gradiometer Survey..................................................................7—7
Manual Mode – Total-Field/Gradiometer (Semi-Automatic)...........................7—7
Automating your measurements .................................................................. 7—11
Base Station Operation .................................................................................... 7—11
Check your setup ......................................................................................... 7—12
Survey Data Correction Procedures ................................................................7—13
Using Base-Station Data..............................................................................7—13
Tie-Point (TIE-PT) Mode .............................................................................. 7—15
Loop type – collecting data ..........................................................................7—15
Line type – collecting data............................................................................ 7—16
Tie-Point Correction Procedure....................................................................7—18
Chapter 8 Data Output.........................................................................................8—1
Output Formats ..................................................................................................8—1
Notes..............................................................................................................8—4
Operation Mode .............................................................................................8—5
Dumping Data ................................................................................................ 8—6
All data ........................................................................................................8—6
Specific data................................................................................................ 8—7
Line by Line.................................................................................................8—7
Erasing data from memory .............................................................................8—8
Operation mode...........................................................................................8—9
Chapter 9 Maintenance and Repair....................................................................9—1
Battery Charging ................................................................................................9—1
One Battery ................................................................................................. 9—1
Two Batteries ..............................................................................................9—2
Periodic Maintenance......................................................................................... 9—3
Cleaning the Sensors.....................................................................................9—3
Desiccant Exchange ......................................................................................9—3
Fuse Replacement ......................................................................................... 9—4
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Console Disassembly/Assembly .................................................................... 9—4
Cable Repair .................................................................................................. 9—4
Trouble Shooting................................................................................................9—5
Chapter 10 Reference Information ...................................................................10—1
Envi Pro Technical Specifications .................................................................... 10—1
Dimensions & Weight...................................................................................10—2
Warranty & Repair............................................................................................ 10—3
Warranty....................................................................................................... 10—3
Repair........................................................................................................... 10—3
When to ship the unit................................................................................. 10—3
Description of the problem ........................................................................10—3
Shipping Instructions....................................................................................10—3
Chapter 11 Applications for the ENVI PRO......................................................11—1
Magnetic Surveying Overview.......................................................................... 11—1
Introduction ......................................................................................................11—1
Basic magnetic theory......................................................................................11—1
What is being measured? ............................................................................11—1
Anomalies ....................................................................................................11—3
Shape........................................................................................................11—4
Amplitude ..................................................................................................11—6
Variations in the Earth’s magnetic field ............................................................ 11—7
Diurnal variation ........................................................................................11—7
Micro-pulsations ........................................................................................ 11—8
Magnetic storms ........................................................................................ 11—8
Removing magnetic variations .................................................................. 11—9
Magnetic targets............................................................................................. 11—10
Induced and Remanent magnetism ........................................................... 11—10
Survey Planning ............................................................................................. 11—12
Introduction ................................................................................................11—12
Sampling intervals......................................................................................11—12
Line and Station spacing vs. Anomaly width ........................................... 11—12
Precision and Accuracy of Surveys............................................................ 11—13
Noise ....................................................................................................... 11—13
Tuning .....................................................................................................11—14
Survey mode ........................................................................................... 11—14
Field Observations .................................................................................. 11—16
Grid layout and orientation ......................................................................... 11—16
Survey procedures and a sample survey.......................................................11—17
Introduction ................................................................................................11—17
Survey do’s and don’ts...............................................................................11—17
Laying out the grid................................................................................... 11—17
Diurnal corrections vs. Survey pattern ....................................................11—19
Search mode...........................................................................................11—21
Note taking .............................................................................................. 11—21
Surveying in the WALKMAG mode .........................................................11—21
Surveying in the Stop-and-Go mode ....................................................... 11—23
Magnetic cleanliness ............................................................................... 11—23
Monitoring your data................................................................................11—24
Post-survey procedures .............................................................................11—24
Clean-up site if required .......................................................................... 11—24
Data correction ........................................................................................11—24
Data transfer............................................................................................11—24
Processing data.......................................................................................11—24
Field example.............................................................................................11—25
Columbia test site — Waterloo, Ontario .................................................. 11—25
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Bibliography .............................................................................................................1
INDEX ......................................................................................................................2
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Chapter 1 Preface
Congratulations on purchasing the ENVI PRO environmental
magnetometer/gradiometer from Scintrex Limited. You are in possession of one of the
most advanced magnetometers for environmental, geotechnical, archaeological and
mineral exploration uses of today.
The ENVI PRO is a portable, proton-precession magnetometer that also is inexpensive,
lightweight and rugged. In its trademarked WALKMAG mode it is ideal for applications
where high productions, fast reading and high sensitivity are required. It is quite
versatile and can be optionally configured as a total-field magnetometer, a gradiometer
or as a base-station.
Features
The main features of the ENVI PRO include:
• Interactive menus for easy operator use
• Selectable sampling rates as fast as 2 times per second
• WALKMAG mode for rapid data acquisition
• True simultaneous gradiometer option with the WALKGRAD mode for rapid
data acquisition
• Single-frequency GPS antenna allowing the user to acquire non-differential
positional data along with the magnetometer data
• Large internal memory, expandable to 188,000 readings
• Easy to read, large LCD screen that displays data both graphically and
numerically
• Easy review of the data and Datacheck quality control
The complete ENVI PRO consists of several basic modules:
• Lightweight console with a large screen alphanumeric display and high
capacity memory
• GPS receiver antenna
• Staff or back-pack mounted sensor and sensor cable
• Rechargeable lead-acid battery and battery charger
• RS-232 cable for downloading data
Upgrades and Options
There are optional upgrade kits available for the ENVI PRO to provide the following:
1. True simultaneous gradiometer – An additional processor module is installed in
the console, a second sensor with a staff extender and a ruggedized backpack
for the WALKGRAD mode are provided in this kit.
2. Base-station applications – An accessory kit allows the sensor and staff to be
converted into a base-station sensor and the cabling allows a field ENVI PRO
or ENVI MAG to be connected for automatic magnetic operations down to
minus 40°C.
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3. Low temperature operations – An external battery pouch along with a
thermostatically controlled display heater will permit field operations down to
minus 40°C.
4. External trigger interface – This kit provides a tool for acquiring evenly spaced
data when no survey grid has been established in advance. The kit is an
interface between the ENVI PRO and a triggering device (such as a measuring
wheel or a hip-chain that you supply). It works by triggering a station increment
at intervals in the WALKMAG mode. Detailed instructions for installation,
interfacing and usage are provided with the kit.
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Chapter 2 Introduction
This section is the reference for the ENVI PRO instrument itself. You will find all the
information you need to know about setting up the unit for field use, its operation,
maintenance and trouble-shooting. It is divided into eleven chapters with the
information flow from chapter to chapter following a natural progression, as shown
in the following table:
Chapter Description
1. Preface Features, upgrades and options.
2. Introduction Outlines what the instrument can do.
3. Preparing Describes the assembly of the system for use.
4. The
Instrument
5. Operating
Displays
6. Setting Up
7. Operating
8. Date Output
9. Maintenance
10. Reference
11. Applications Magnetic Surveying Overview and basic magnetic theory
This chapter is about the instrument itself.
Describes the various display screens.
Describes how to initialize the ENVI PRO and program it for
different modes of operation.
Guides you through typical instrument operation using basic,
search and advanced configurations in a WALKMAG and a Stopand-go type of survey.
Shows examples of data output formats and explains how to dump
the acquired data.
Describes basic maintenance, trouble-shooting and repair.
Contains the technical specifications, instrument parts list and
warranty information.
Cold Boot
Please read the section “First time operation” on page 6—1 so that you will know
how to do a cold boot of the instrument. This is needed the first time you use it,
whenever you wish to change operating configurations or after the batteries have
been removed for more than 10 minutes.
Instrument Overview
The SCINTREX ENVI PRO is an easy-to-use, lightweight, battery-powered,
portable magnetometer. The magnetometer is a total field instrument using the
proton-precession technique to measure the local magnetic field. Optional
magnetometer upgrade kits allow the instrument to be used as a gradiometer or as
a base-station. The standard configuration has the sensor mounted in a backpack
mode permitting rapid data acquisition in the trademarked WALKMAG mode.
Measured data is stored in the ENVI PRO console memory along with the
coordinates where the measurement took place. You can
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Introduction
also enter descriptive notes of up to 32 characters at any station. The data can be
displayed either numerically or graphically for quick inspection of the data quality
and spotting of anomalies. Data can also be recalled from memory for visual
inspection, dumped either to the serial port (RS-232) of a computer or directly to a
printer. You can also automatically correct your magnetic data for diurnal variations
when another ENVI PRO is used as a base-station or when you conduct your
survey in the TIE mode.
The operating modes of the ENVI PRO can be manual, semi-automatic or fully
automatic. In the WALKMAG (walking magnetometer) mode, data are acquired and
recorded at rates of up to two readings per second, as you walk at a steady pace
along the survey line. At desired intervals, you trigger a station marker by pressing a
single button and the co-ordinates are automatically assigned to the recorded data.
You can even introduce delays in the automatic recording to compensate for
walking over rugged terrain.
The ENVI PRO comes with a Single-frequency GPS antenna allowing the user to
acquire non-differential positional data along with the magnetometer data. Being a
non-differential receiver, the positional accuracy is of the order of a few meters,
which is sufficiently accurate for most magnetometer surveys. Should you require
more accurate position and sensitivity, you should consider our NAVMAG cesium
vapor magnetometer.
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Chapter 3 Preparing the ENVI PRO
This chapter describes:
How the ENVI PRO is packaged, how to connect the components to get an
operational unit, the various options you may have for powering the unit
The following photographs show the basic components (less packing materials) of
the standard ENVI PRO.
3—1
The basic ENVI PRO kit
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Unpacking
The standard ENVI PRO is shipped in a carrying/shipping case The ENVI PRO with
its accessories is packaged in cut-out sections in the case. This provides a proper
place for every item when you repack your instrument for shipping or storage. These
foam layers are disassembled in the following order, starting at the top:
Repacking
Warning: The batteries must be removed from the ENVI PRO
console prior to shipping or storage. Failure to do so
may result in damage.
Assembly
In order to make the system as compact as possible for shipment and
storage, and considering the various sensor configurations available, the
ENVI PRO requires you to connect up the external components. This
section will describe the steps required to completely assemble your
instrument.
Connecting the magnetic sensor(s) to the cable
The following illustrations show the proper cable connections for each of
the different magnetic sensor configurations. The sensors are shown being
viewed from their bottoms looking at the screw terminals.
Important: All parts near the sensor are non-magnetic. It is highly
recommended that you use only the brass screws and
wire connectors supplied by Scintrex. There are
additional screws for the terminals and cable hold-down
in the minor spare parts kit (Scintrex p/n 788030). If
you ever need to replace any of these parts under field
conditions please ensure that they are made of non magnetic materials.
Total-field senso r
1. Orient the sensor so that as you look at the bottom of the sensor (the end with the
terminals), the large square plug is at the 9 o’clock position.
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2. Use either Scintrex cable number 780547 (the shorter one) for the backpack
configurations or cable number 780550 for the staff configuration.
3. Remove the cable hold-down plate by unscrewing the screws at the 2 o’clock and
4 o’clock positions.
4. Connect the black spade-lug on the bare wire of the cable to the terminal at the 11
o’clock position.
5. Connect the red spade-lug on the white wire of the cable to the terminal at the 11
o’clock position.
6. Place the cable in the smaller slot just below the 3 o’clock position.
7. Re-attach the cable hold down plate.
Total Field Sensor Cabling
Base-station sensor
1. Orient the sensor so that as you look at the bottom of the sensor (the end with the
terminals), the large square plug is at the 9 o’clock position.
2. Use Scintrex cable number 780546.
3. Remove the cable hold-down plate by unscrewing the screws at the 2 o’clock and
4 o’clock positions.
4. Connect the black spade-lug on the black wire of the cable to the terminal at the
11 o’clock position.
5. Connect the red spade-lug on the white wire to the terminal at the 1 o’clock
position.
6. Place the cable in the larger slot just above the 3 o’clock position.
7. Re-attach the cable hold down plate.
Base-Station Sensor Cabling
Gradiometer Sensors - Lower Sensor
1. Orient both the sensors so that as you look at the bottom of the sensors (the end
with the terminals), the large square plug is at the 9 o’clock position.
2. Use Scintrex cable number 788028 - it has four conductors.
3. Select the lower sensor - it has pairs of terminals at the 12 o’clock and 6 o’clock
positions, as well as an attached cable to the terminals at the 6 o’clock position. See
Gradiometer sensor cabling on page 3—4.
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Preparing
4. Remove the cable hold-down plate by unscrewing the screws at the 2 o’clock and
4 o’clock positions.
5. Connect the red wire of the cable to the terminal at the 1 o’clock position.
6. Connect the black wire of the cable to the terminal at the 11 o’clock position.
7. Connect the green wire of the cable to the terminal at the 5 o’clock position.
Please ensure that the already attached bare wire of the smaller two-conductor cable
remains attached.
8. Connect the white wire of the cable to the terminal at the 7 o’clock position. Please
ensure that the already attached white wire of the smaller two-conductor cable
remains attached.
9. Place the smaller two-conductor cable into the smaller slot just below the 3 o’clock
position.
10. Place the larger four-conductor cable into the larger slot just above the 3 o’clock
position.
11. Re-attach the cable hold-down plate.
Gradiometer Sensors - Upper Sensor
12. Select the upper sensor - it only has a pair of terminals at the 12 o’clock position.
See Gradiometer sensor cabling on page 3—4.
13. Attach the upper sensor to the lower one by placing the shaft of the lower sensor
into the socket of the upper one while rotating slightly counter-clockwise. When they
are fully engaged, firmly twist them clockwise against each other.
Warning: Both sensors must have their directional marks aligned
in the same manner, i.e. the N on the top sensor must
be in-line with the N on the bottom sensor.
14. Remove the cable hold-down plate of the upper sensor by unscrewing the screws
at the 2 o’clock and 4 o’clock positions.
15. Connect the white wire of the two-conductor cable coming from the lower sensor
to the terminal at the 1 o’clock position.
16. Connect the black wire of the two-conductor cable coming from the lower sensor
to the terminal at the 11 o’clock position.
17. Re-attach the cable hold down plate.
Gradiometer sensor cabling
Installing the terminal protective cover
A plastic cup-like assembly is included to slide over the base of the sensor(s) to
protect the terminal connections from the elements.
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Preparing
To install the cover:
1. Slide it over the sensor shaft with the widest end pointing towards the sensor.
2. Slide the supplied O-ring into the grove on the shaft to lock it into place.
To remove the cover, just reverse the above procedure. First remove the O-ring and
slide the cup away from the sensor.
Assembling the sensor / GPS staff
Note: You can disregard this section if you are going to be using the
ENVI PRO in the backpack mode.
The sensor staff is shipped in four sections. These sections are located in the
shipping case slot labeled Sensor and Staff. You should note that one of the sections
has a sealed bottom, and you should start assembling the staff with this section.
Staff sections are assembled individually and connected to the sensors as follows:
1. Insert the male end partially into the female end and rotate counter-clockwise while
gently pushing the two parts together.
2. When they are fully engaged firmly twist them clockwise against each other.
Staff Mounted Installation
A staff mounted configuration is the most convenient when carrying out a
magnetometer survey in the stop-and-go mode.
The following steps are required to properly assemble the ENVI PRO sensor and
GPS antenna in the staff mounted configuration.
1. Assemble the staff sections as illustrated.
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Preparing
2. Insert the GPS antenna mount as illustrated.
3. Insert another staff section in order to clamp the GPS antenna mount between two
staff sections as illustrated.
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4. Insert the magnetometer sensor on the top section as illustrated.
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Preparing
Back-pack Installation
A back-pack mounted configuration is the most convenient; providing a hands-free
operation for the ENVI PRO.
The following steps are required to properly assemble the ENVI PRO sensor and
GPS antenna in the back-pack configuration.
1. Insert a staff section in the staff mounting insert located on the back-pack as
illustrated.
2. If you are using the GPS antenna, insert the GPS antenna mount on top of
the previous staff section, as illustrated.
3. Insert a second staff section, as illustrated. The GPS antenna mount will thus
be lodged between two staff sections.
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Preparing
4. Insert the magnetometer sensor at the top of the second staff section, as
illustrated.
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Preparing
Complete Assembly
Warning: You need to consider your travel direction wile
surveying when you attach the sensor. The
magnetometer’s performance is a function of the
sensor’s orientation with respect to the earth’s
magnetic field. Therefore you must ensure that the N
mark on the sensor faces either magnetic north (or
south – either is allowed due to symmetry). Please
see Orientation on page 7-1.
Battery Installation/Exchange
The ENVI PRO is shipped without the battery installed. This is the proper procedure,
while shipping and storing the instrument, to prevent deep discharge of the battery.
Deep discharge can possibly cause permanent damage to the battery and will always
shorten the battery life. This situation will occur because a small current is being
drawn even if the instrument is turned off.
The following steps outline the battery installation:
1. Turn the instrument face down on a clean and even surface.
2. Unscrew both knurled screws on either side of the battery cover and lift the cover
off.
3. Place the battery into the recess in the rear panel of the instrument.
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Preparing
4. Connect it carefully to the MAIN BATTERY connector. It is not important which
side of the plug is up, as long as the connector pins are properly aligned.
5. Replace the cover and tighten both knurled screws.
6. If this is the first time installation proceed with battery charging.
The small size and low cost of the battery makes it convenient to carry an additional
battery along as a spare.
Warning: An internal battery keeps the memory and the internal
clock alive for about 10 minutes. It is strongly advised
that the switching to the spare battery be done quickly,
to prevent the loss of your data.
Note: You need not worry about a low battery causing data loss,
since the memory power requirements are much less than
those needed to make a valid reading of the magnetic field.
ENVI PRO battery pack
Using the external battery pack
Cold weather use and extended WALKMAG surveys may require more power than
the standard battery together with a spare can provide. To satisfy this additional
requirement, the External Heavy Duty Battery Pack (Scintrex p/n 788026) is
available. It provides about three times as much power as the standard battery. This
battery pack can be carried by the strap or attached to a belt.
To connect the external battery you must proceed as follows:
1. Turn the instrument face down on a clean and even surface.
2. Unscrew both knurled screws on either side of the battery cover.
3. Lift off the cover and store it somewhere convenient for future use with the
standard battery configuration.
4. Remove the ENVI PRO STANDARD battery.
5. Connect the connector in the dummy battery cover carefully to the MAIN
BATTERY connector. It is not important which side of the plug is up as long as the
connector pins are properly aligned.
6. Place the new cover on to the console by gently pushing it into place and tighten
the knurled screws on the both sides.
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Preparing
7. Please check the battery voltage condition at this stage and charge the battery, if
required.
External Heavy Duty Battery Connection
Using an external power supply
More demanding applications, such as an extended base-station operation, may
require more power than can be provided with either of the Scintrex supplied battery
packs. In this case you have two options:
a) AC Power
If a source of AC power is available, the instrument can be run while the charger is
connected to it. You will also be charging the standard internal battery, if it is
installed, at the same time.
Note: Please be aware of possible magnetic noise from generators,
and ensure that all cabling and sensors are as far away as
possible from the generator.
b) 12 volt battery (car or marine)
A 12 volt car battery may be more appropriate for other applications. The special
External Power Cable (Scintrex p/n 788029) should be used for this purpose.
1. The standard internal battery may be left in place.
2. Plug in the end of the cable with the single plug into the Charger Connector at the
right-rear side of the ENVI PRO console. See item 6 in the figure on page 4—2.
3. Connect the end with the clips to the battery terminals. The red cable-clip goes to
the positive battery terminal. The black cable-clip goes to the negative battery
terminal.
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Preparing
Important: The correct polarity must be used for the instrument to
operate properly.
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Chapter 4 The Instrument
This chapter is about the instrument itself and fully describes:
• The ENVI PRO console
• The keypad functions
• The various display menus
• The display formats that you will encounter
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Console
Console Description
# Item Description
1 Keypad The fully sealed Keypad has 19 keys and a sound port.
Liquid Crystal
2
Display (LCD)
Carrying Strap
3
Attachment
4 Sensor Connector
Data Output
5.
Connector
Charger/External
6
Power Connector
The large 8 line by 40 character (64 x 240 dots)
Supertwist LCD (with a wide temperature range) presents
status and data in a numeric or graphic format.
Four rings at the side of the console that allow attachment
of the carrying harness.
Up to two sensor connectors may be present at the left
hand side of the console. The nearer one J102, 10 Pin
connector, is reserved for the magnetometer sensor.
The J101, 8 Pin connector is reserved for the GPS
antenna.
The data output connector carries RS-232 data dump
signals, as well as the analog signal for a strip chart
recorder and is located at the right hand side of the
console.
It has the following pin assignments:
A – common (ground) B – RS-232 receive data
C – RS-232 transmit data C – analog out 0-1 Volt
This connector accepts the charger to recharge either the
standard battery or the external heavy-duty battery pack.
It also accepts external, well filtered, 11 to 16 Volt DC
input.
The center pin is negative (-)
The shell is positive (+)
7 Charging Light
Battery
8
Compartment
9 Desiccant Cartridge
10 Battery
11 Fuse The standard 1.5A fuse to use with the standard battery.
The charging light (visible through a window on the left
side) indicates that the battery is charging at a high rate.
The battery compartment is located at the back of the
console and contains one rechargeable lead-acid battery,
the desiccant cartridge and the fuse. The battery cover is
replaced with another cover with a cable attached when
the external battery is used.
The desiccant cartridge is a cylindrical re-usable capsule
filled with a drying agent. It absorbs any moisture that
my get inside the instrument.
A rechargeable lead-acid battery in the standard ENVI –
MAG configuration.
Keypad Description
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Console
The keypad has 19 keys. Two of the most used keys are duplicated on the right and
left sides of the console for easy access. Some keys have up to three separate
functions assigned to them. The response of these multifunctional keys depends
upon the operation in progress.
Note: The function mode of the keys has precedence over the alpha-
numeric mode of the keys.
Key Functions
Key Description
4—3
The ENVI PRO keypad
Turns the instrument on and off. Turning the instrument off
during a reading abruptly terminates a reading with the loss
of the current data.
Starts or stops an operation, such as data acquisition, data
dumping, data recall, etc.
*When the instrument is in the Notes operation, this button
acts as a “backspace” key to delete entries.
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Console
*Accesses the various setup displays. The actual setup
menu that will be displayed depends upon the display
screen in which this key is pressed.
*Accesses the Auxiliary Functions display allowing:
- setting of the LCD intensity
- data output
- locking of the setup parameters
Moves the cursor to the left or up; to the right or down.
2 identical keys:
- opens and closes the parameter fields during setups
- opens and closes the scaling option field for the graphics
display
- toggles the sample rate in the walking type survey.
Allows escape from a deeper level in a program to a higher
level, ultimately to the top level, which is signified by the
Main operating display.
Aborts a data dump.
*Accesses the Info. Display, which allows:
- setting of data and time
- enabling and selecting GPS coordinates
- entering of serial and job numbers, and operator
identification
- observation of memory availability.
2 identical keys:
- scrolls sequentially through numeric data display pages
- scrolls sequentially through graphic data display pages
- moves the cursor from one sub-page to the next sub-page
- moves the cursor to the next character location during note
entry
- advances the station number by station separation in the
walking mode.
*Accesses the Note Entry display, which allows:
- the entry of five common notes (macros) to be recorded
repeatedly with selected readings
- the entry of unique notes to be recorded with a particular
reading.
4—4
Toggles the data display between numerical and graphic
data presentation during data acquisition only.
*Presents the Recall display for selection of:
- data item to be recalled
- setting of the starting location or time of the recall.
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Console
*Manually records measured data and notes in internal
memory.
Acts as the START key at a Tie-point. This is used for the
Tie-point line and loop mode corrections.
Facilitates the scrolling forward or backward through a list of
items:
- allows sign entry to numbers
- allows panning along a line of data during recall
- increments or decrements the line and station number in
the Stop-and-Go mode.
*Allows alpha-numeric entry for setups and notes.
This blank “key” in the upper left corner of the console is not
actually a key, but a flexible membrane to enhance the
* These items/key functions are only operational when you select the advanced
operating modes (options 5 to 7) from the initial configuration menu.
loudness of the beeper.
Pressing the “ON” and “AUX/LCD” keys simultaneously
performs the COLD BOOT operation, resetting the
instrument to factory defaults.
Display Screens
The ENVI PRO currently has the following types of displays:
• Help screens
• Confirmation screens
• Parameter selections screens
• Note entry screens
• Numeric data displays
• Graphical data displays
• Pop-up options and confirmations
General Information
Most of the screens consist of three bands of information as shown below:
4—5
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Console
General display information bands
The Title Line at the top indicates the current operating functions.
The middle six lines contain specific display information consisting of either
instrument and survey parameters or data.
1. The bottom line usually contains prompts for actions, such as pressing the
key required to start an operation. Miscellaneous messages may also appear
here. The battery voltage (values between 100 and 140) is also shown on the
right-side of this line.
Note: The instrument automatically turns off (blank display) to
conserve battery power, if there is no reading or key stroke
detected for 30 minutes.
Cursor
A large, blinking cursor indicates the specific parameter that
can be altered to change setups, starting station value, station or line spacing, and so
on. The cursor is moved from parameter to parameter or line to line by pressing the
arrow keys to move in the desired direction. The prompt on the bottom line will let
you know which key to press to make any changes.
Display Blocks
Some displays are divided into two or more blocks or sub-panels. The blocks are
separated by solid partition lines as shown in the following figure.
4—6
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