Tegam R1L-E2A Manuel utilisateur

Tegam
Marque
Tegam
Modèle
R1L-E2A
Taper
Manuel utilisateur
10 TEGAM WAY • GENEVA, OHIO 44041 • 440-466-6100 • FAX 440-466-6110 • [email protected]
R1L-E2A
INTRINSICALLY SAFE
MICROOHMMETER
MODEL R1L-E2A
Instruction Manual
PN# R1L-E2A-900-01
Publication Date: March 2020
REV. G
An Agency Related Document:
Those sections identified as controlled cannot be changed without approval of the
Notified Body; however, other changes must be evaluated specifically for how it
impacts any scheduled drawing or document.
10 TEGAM WAY • GENEVA, OHIO 44041 • 440-466-6100 • FAX 440-466-6110 • [email protected]
R1L-E2A
Markings and Warnings
(This section, Markings and Warnings, is controlled and
may only be changed with approval of the Notified Body.)
0539 II 1 G
Ground Indicator For Use in Hazardous Locations
4EV4
SAFETY WARNINGS
This unit is intrinsically safe. WARNING: Substitution of components may impair
intrinsic safety. See accompanying instruction manual for operating and
maintenance instructions.
WARNING: Batteries are part of the intrinsically safe system. Use only the specific
battery type and manufacturers listed in the user manual. Use of other batteries
could impair intrinsic safety. Do not mix batteries of different manufactures. Do
not mix fresh batteries with old batteries.
WARNING: To reduce the risk of ignition of a flammable or explosive atmosphere,
batteries must be changed only in a location known to be non-hazardous.
WARNING: When operated in a potentially explosive atmosphere, this unit may
not be used if capacitance, inductance or other circuitry is connected to the bond
or structure under test.
WARNING: To prevent ignition of flammable or combustible atmospheres, read,
understand and adhere to manufacturer’s live maintenance procedures.
WARNING: Panel Bezel is a Light Metal alloy. Avoid risk of ignition caused by
impact or friction sparks resulting from impact to or friction with the panel bezel
by protecting the panel and bezel from impact and friction.
Ex ia IIA T4 Ga
-20C ≤ Ta ≤ +50C
DEMKO 11 ATEX 1048757X
IECEx UL 11.0006X
Control Drawing 13742
Class I Zone 0, Group IIA
Class I Division 1, Group D
10 TEGAM WAY • GENEVA, OHIO 44041 • 440-466-6100 • FAX 440-466-6110 • [email protected]
R1L-E2A
AVERTISSEMENTS DE SURETE
Cette unité est intrinsèquement sûre. AVERTISSEMENT: la substitution des
composants peut altérer la sûreté intrinsèque. Voyez le manuel d'instruction pour
des instructions d'opération et d'entretien.
AVERTISSEMENT: Les piles font partie du système d'une sécurité inhérente.
Employez seulement le type et les fabricants spécifiques de piles énumérés dans
le manuel d'utilisation. L'utilisation d'autres piles a pu altérer la sûreté
intrinsèque. Ne mélangez pas les types de pile. Ne pas mélanger des piles neuves
avec des piles usagées
AVERTISSEMENT: Pour réduire le risque d'allumage d'une atmosphère
inflammable ou explosive, les piles doivent être changées seulement dans une
zone connue pour être non-dangereuse.
AVERTISSEMENT: Quand opérée dans une atmosphère potentiellement
explosive, cette unité ne peut pas être utilisée si la capacitance, l’inductance ou
les autres circuits sont connectés au lien ou à la structure sous l’essai.
AVERTISSEMENT: Pour empêcher l'allumage des atmosphères inflammables ou
combustibles, lisez, comprenez et adhérez aux procédures d'entretien sous
tension.
AVERTISSEMENT : La monture de panneau est un alliage léger en métal. Évitez
le risque d'allumage provoqué par des étincelles d'impact ou de frottement en
résultant de l'impact à ou du frottement avec la monture de panneau en
protégeant le panneau et la monture contre l'impact et le frottement.
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TABLE OF CONTENTS
TABLE OF CONTENTS
1. INSTRUMENT DESCRIPTION
Introduction ......................................................... 1-1
Performance Characteristics ................................... 1-1
Table 1: Specifications ....................................... 1-1
Description of Equipment ....................................... 1-2
Figure 1: Front Panel and Controls ....................... 1-5
List of Items Furnished .......................................... 1-6
Storage and Shipping Requirements ........................ 1-6
2. PREPARATION FOR USE AND INSTALLATION
Unpacking and Inspection ...................................... 2-1
Preparation for Use................................................ 2-2
Figure 2a: HTP-101A Probe Connections ............... 2-3
Figure 2b: SKP-8 Probe Connections .................... 2-3
3. OPERATING INSTRUCTIONS ................................. 3-1
4. SERVICE INFORMATION
Preparation for Repair or Calibration Service ............. 4-1
Expedite Repair and Calibration Form ...................... 4-2
Warranty .............................................................. 4-3
Page 1-1
10 TEGAM WAY • GENEVA, OHIO 44041 • 440-466-6100 • FAX 440-466-6110 • sales@tegam.com
INSTRUMENT DESCRIPTION
SECTION 1
INSTRUMENT DESCRIPTION
1.1 Introduction
The TEGAM Model R1L-E2A is an intrinsically safe portable
bond meter/microohmmeter designed to measure low values
of resistance, from 1 µΩ to 20 Ω. A four point measurement
method is utilized in order to eliminate any errors caused by
the resistance of the measuring leads. Two leads are used to
pass a constant regulated current through the resistance
under test, and two leads are used to measure the resulting
voltage drop across the resistance under test. The R1L-E2A
then uses Ohm’s law to calculate the resistance and displays
the value digitally on a liquid crystal display (LCD). The R1L-
E2A cycles the current ON and OFF during the measurement.
During the OFF state, thermal and offset voltages, occurring
in the voltage measurement chain, are stored, and then used
as a correction during the ON current time.
The current used for the measurement is well regulated to be
constant over large changes in the unknown resistance
and/or the resistance of the test leads. If the resistance under
test becomes too high on a given range, the display shows a
“1” followed by three blanks.
1.2 Performance Characteristics
The R1L-E2A has five resistance ranges, with test current,
resolution, and scale as shown below in Table 1.
Range
Full Scale
(Ω)
Resolution
(Ω)
Test Current
Peak (A)
1
1.999 m
1 µ
1.3
2
19.99 m
10 µ
130 m
3
199.9 m
100 µ
13 m
4
1.999
1 m
1.3 m
5
19.99
10 m
0.13 m
Table 1: Range Specifications
Accuracy: All ranges: 0.1% of reading ± 2 counts.
Page 1-2
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INSTRUMENT DESCRIPTION
Accuracy may become degraded in the presence of significant
levels of RF field. At a RF field strength of 3 V/m, accuracy is
1% of reading ± 2 counts for the four lowest ranges (1.999
mΩ full scale through 1.999 Ω full scale) and 2% of reading ±
2 counts on the 19.99 Ω full scale range.
Operating Temperature: -20 °C to +50 °C.
Relative humidity: 0 to 90%, non-condensing.
1.3 Description of Equipment
A rugged heavy-duty static-dissipative ABS/Polycarbonate
plastic case is supplied to contain and protect the R1L-E2A.
When closed, a gasket seals the lid to keep out water and dirt,
while the R1L-E2A is transported through rain or other
environmentally hostile conditions. When the lid is open, a
second gasket provides additional, although reduced
protection, for the front panel. The removable battery access
cover also has a gasket. The front panel is aluminum with
durable polycarbonate graphical overlay. The lid of the R1L-
E2A case further serves as a storage area for the supplied pair
of test probes and instruction manual.
Dimensions of the case are 17” W x 11.5” D x 7.1” H.
Weight is 18 pounds (including test probes, power cord,
battery cells, and manual).
With the lid open for operation, the front panel and its controls
are readily accessible. Controls and connectors may be
operated while wearing safety gloves.
Electrical: Power is from three alkaline D-cells. Current drain
depends on the measurement range selected, and battery
capacity. Based on an average drain of 150 mA, and brand
new D cells and a 25 °C ambient, the battery cells will typically
give up to 80 hours of operation (with the backlight OFF).
Increasing battery drain and decreasing temperature both
result in decreased battery capacity. Extended use on the 2
mΩ range or with backlight on will reduce operating time
dramatically. At low ambient in the 2 mΩ range, battery life
Page 1-3
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INSTRUMENT DESCRIPTION
will be approximately three hours of continuous measurement
for new cells. Continuous measurement is very unlikely, and
high current is only drawn when test probes are connected
and touching a low-resistance surface. It is expected that in
most foreseeable conditions, one set of batteries will allow at
least eight hours of normal intermittent testing activity.
CAUTION
THIS INSTRUMENT IS TO BE OPERATED FROM BATTERY
POWER ONLY. CONNECTION OF AN EXTERNAL SUPPLY WILL
RESULT IN A HAZARDOUS CONDITION AND MAY DAMAGE
THE R1L-E2A
Front Panel Controls and Displays (Refer to figure 1)
POWER ON/OFF pushbutton switch turns battery power ON
and OFF for the R1L-E2A. It is protected by a ring to make
accidental actuation more difficult.
The RANGE switch is used to select the desired resistance
range for the resistance under test. There are five ranges
marked 2 mΩ, 20 mΩ, 200 mΩ, 2 Ω, and 20 Ω. Note that
although the ranges are marked “2" etc., the actual reading
limit is 1.999 mΩ, etc. Resistance readings on any range
exceeding 1999 (with appropriate decimal point) show as an
“over-range” condition, indicated by a display of “1” followed
by three blanks.
BACKLIGHT pushbutton is a momentary pushbutton switch
which controls PC board circuitry to cycle through three states
for the backlight. The default state is OFF, which occurs each
time the R1L-E2A is powered up, regardless of previous
history, and is indicated by the full black circle. Depressing the
pushbutton once causes the backlight to cycle to its half-bright
state indicated by the half-lighted circle. Depressing the
switch a second time causes the backlight to cycle to its full-
bright state, indicated by the non-filled circle. A third
depression of the backlight switch will cycle the backlight to
OFF.
DISPLAY is a 3½ digit LCD with decimal points, reading from
0.001 mΩ to 19.99 Ω full scale.
Page 1-4
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INSTRUMENT DESCRIPTION
LOW BATTERY is indicated by “LOBAT” on the display, in
addition to the resistance reading.
Four binding posts are provided for the connection of test
probes. (Only HTP-101A or SKP-8 test probes may be used in
an explosive atmosphere). The two binding posts labeled +I
and -I supply a constant current to the resistance under test.
The binding posts labeled +E and -E sense the voltage
developed across the resistance under test. The binding posts
are color coded to match the colors of the spade lug
insulations on the supplied test probes.
Test Probes
The Model R1L-E2A unit is shipped with one or both of the test
probes: a pair of pistol-shaped test probes (HTP-101A) and/or
a pair of Kelvin Probes (SKP-8). The probes are color coded; a
red one for use with the left hand, and a white one for use with
the right hand. Each probe is attached to an eight foot length
of cable comprised of two 12 AWG insulated wires for the HTP-
101A and 18 AWG insulated wires for the SKP-8. The ends of
the probe cables terminate in spade lugs, which have color
coded insulation corresponding to the colors of the front panel
binding posts. The cable strain relief has a band with
appropriate left or right identification.
Each test probe has two sharply-pointed spring-loaded
conductors extending from the nose. One conductor of each
probe is for current, and the other is for voltage.
When firmly pressed against a surface, the pointed conductors
of the HTP-101A retract with a rotating motion, to help cut
through non-conductive surface films. When not in use, the
probes are meant to be stored in the lid of the R1L-E2A case.
Page 1-5
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INSTRUMENT DESCRIPTION
Figure 1: Front Panel and Controls
Page 1-6
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INSTRUMENT DESCRIPTION
1.4 List of Items Furnished
1 each Model R1L-E2A Microohmmeter.
1 set of Alkaline Battery Cells Approved for R1L-E2A.
1 each Instruction Manual.
Depending on the configuration ordered:
1 set of Pistol-shaped Test Probes (HTP-101A) and/or
1 set of Kelvin Probes (SKP-8).
1.5 Storage and Shipping Requirements
Storage Temperature: -40 °C to +71 °C.
Relative humidity: 0 to 100%, non-condensing.
The Model R1L-E2A is a rugged instrument and requires
no special covering, preservation, or special cradles.
During shipment, packaging must provide sufficient
resilient material in accordance with standard packaging
practices to prevent excessive shock to the power supply
and display.
Page 2-1
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PREPARATION FOR USE AND INSTALLATION
SECTION 2
PREPARATION FOR USE AND INSTALLATION
2.1 Unpacking and Inspection
Upon receipt, the R1L-E2A and its accessory kit should be
carefully unpacked and removed from the shipping container.
Separate the units from the packing material and inspect the
instrument for any external damage.
• If any dents, broken, or loose parts are seen, do not use the
equipment. Notify TEGAM immediately.
• Note that the instrument is shipped with its batteries
removed. Unwrap the three D-cells which were shipped with
the unit.
Release the two latches which secure the lid of the Model R1L-
E2A Microohmmeter and open the lid. Since the lid is well
gasketed, it may be difficult to open if there is an appreciable
difference between external and internal air pressure. Check
for the presence of two test probes stored in the cavity in the
lid. If the test probes or instruction manual are not present,
and the instrument is new, report this immediately to TEGAM.
2.2 Operational Warnings and Considerations Prior to Use
(This section, Operational Warnings and Considerations
Prior to Use, is controlled and may only be changed with
approval of the Notified Body.)
2.2.1 Batteries
Use only Alkaline or Manganese D Cells that have been proven
by a Nationally Recognized Testing Laboratory to meet the
requirements of UL60079-11, section 10.5.2. Use of any other
battery will invalidate the Type certificate and will create a
hazardous condition. The only batteries that TEGAM has
secured such testing on, and which are approved for use in the
Page 2-2
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PREPARATION FOR USE AND INSTALLATION
R1L-E2A are listed on the Type Certificate and are:
o Energizer E95
2.2.2 Test Probes
Only HTP-101A or SKP-8 test probes or leads may be used in
an explosive atmosphere.
2.3 Preparation for Use
Note that the Model R1L-E2A is shipped with its battery cells
removed. Three battery cells are shipped with each new unit.
• Loosen the six captive screws around the outside edge of
the battery access panel using a Phillips No. 2 screwdriver,
and remove the panel.
• Check for correct polarity and install the three D-cells in the
battery holder. When installing the cells, rotate them slightly
to ensure connection to the battery holder contacts. The
cells are connected in series for a nominal voltage of 4.5 V.
WARNING
DO NOT INSTALL, CHANGE, OR REMOVE THE R1L-E2A
BATTERY CELLS IN AN EXPLOSIVE ATMOSPHERE! A SPARK
MIGHT BE GENERATED, WHICH COULD RESULT IN AN
EXPLOSION.
WARNING
BATTERIES ARE PART OF THE INTRINSICALLY SAFE
SYSTEM. USE ONLY RECOMMENDED BATTERIES. DO NOT
MIX BATTERIES. USE OF ANY OTHER BATTERY OR MIXED
BATTERIES MAY RESULT IN A HAZARDOUS CONDITION.
WARNING
USE ONLY HTP-101A OR SKP-8 TEST PROBES AND CABLE
SETS WITH R1L-
E2A IN POTENTIALLY HAZARDOUS
ENVIRONMENTS. USE OF ANY OTHER COMBINATION OF
PROBE AND CABLE INVALIDATES THE TYPE CERTIFICATION
AND MAY RESULT IN A HAZARDOUS CONDITION.
Page 2-3
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PREPARATION FOR USE AND INSTALLATION
• Use only Alkaline or Manganese D Cells that have been
proven by a Nationally Recognized Testing Laboratory to
meet the requirements of UL60079-11, section 10.5.2. Use
of any other battery will invalidate the Type certificate and
will create a hazardous condition. The only batteries that
TEGAM has secured such testing on, and which are approved
for use in the R1L-E2A are listed on the Type Certificate and
are:
o Energizer E95
• Reinstall the battery access panel and tighten the six captive
screws to secure it.
If the test probes are to be used, connect their leads to the
corresponding color-coded binding post on the R1L-E2A front
panel, as shown in figure 2a and 2b. Only HTP-101A or SKP-8
test probes or leads may be used in an explosive atmosphere.
Ensure they are properly connected for a four-wire
measurement. For example, if measuring the value of a low
value resistor, connect the +I and –I current leads to the ends
of the resistor leads away from the resistor body. Connect the
+E and –E leads between the current leads and the resistor
body at the points between which the resistance value is to be
determined, making sure the +E lead is on the same side of
the resistor as the +I lead, and the –E lead is on the same side
of the resistor as the –I lead.
Page 2-4
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PREPARATION FOR USE AND INSTALLATION
Figure 2a: HTP-101A Probe Connections
Page 2-5
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PREPARATION FOR USE AND INSTALLATION
Figure 2b: SKP-8 Probe Connections
Page 3-1
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OPERATING INSTRUCTIONS
SECTION 3
OPERATING INSTRUCTIONS
The Model R1L-E2A Microohmmeter is designed for bench-top
or field operation. If not already done, connect the two test
probes, matching their spade lug insulation color to the
corresponding binding post color on the R1L-E2A front panel.
The red probe is for the left hand and the white probe for the
right hand, as per their labels.
Depress the alternate action POWER ON/OFF switch button
once to turn on power. The appearance of any character on
the LCD indicates the presence of power.
Rotate the RANGE switch to the desired measurement range.
If operating in an area of low illumination, depress the
BACKLIGHT switch. Depressing the BACKLIGHT switch once
will turn the backlight on to half-bright; depressing the switch
again, will turn the backlight on to maximum brightness, and
depressing the switch a third time will turn the backlight OFF.
Whenever power to the R1L-E2A is turned OFF, the backlight
will return to its default OFF condition. Also note that operation
of the backlight will decrease battery life, hence it should not
be left ON, when not required.
To make a measurement, pick up the two pistol shaped
probes, with the left (red) one in the left hand and the right
(white) one in the right hand (as shown in figure 2a). When
using the SKP-8 Kelvin probes, hold the red probe in the left
hand and the white probe in the right hand. Make sure that
the label is facing inward as shown in the figure 2b. The pin
near the label is the voltage (sense) pin. Press the conductive
tips of the two probes firmly against the surface to be
measured. The spring-loaded conductive pins will be pushed
back, to help penetrate non-conductive surface coatings. In
case of the HTP-101A probes, the pins will rotate as they
retract.
Page 3-2
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OPERATING INSTRUCTIONS
The resistance reading will show up on the display. If the
measurement is over-range, the display will read “1" followed
by three blanks. In that case, turn the range switch to the next
higher range.
When the battery voltage has fallen to a value near the end of
its useful life, “LOBAT” will be seen on the display. The unit
will not be damaged by further use, but this is a warning that
readings may not be accurate, especially on the 2 mΩ range
which uses a nominal 1.3 A test current. The battery cells
should be replaced when “LOBAT” appears.
Depress the POWER ON/OFF switch to OFF, when through
using the instrument, to avoid depleting the battery.
Disconnect the test probes and store them in the case lid with
the instruction manual, upon completion of the measurement
task.
Page 4-1
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SERVICE INFORMATION
SECTION 4
SERVICE INFORMATION
Preparation for Calibration or Repair Service
The R1L-E2A may only be repaired at TEGAM, Inc., as it is a
labeled unit with requirements for intrinsic safety and use in
an explosive atmosphere. As part of the process in meeting
these requirements, the R1L-E2A internal printed circuit board
has a conformal coating, a large area of hard encapsulation,
and some areas of soft encapsulation. If a problem exists and
repair is required, please contact TEGAM, Inc. for a return
authorization number. You can contact TEGAM customer
service via the TEGAM website, www.tegam.com or by calling
440.466.6100 (All Locations) OR 800.666.1010 (United States
Only).
The RMA number is unique to your instrument and will help us
identify your instrument and to address the particular service
request by you which is assigned to that RMA number.
Of even greater importance, a detailed written description of
the problem should be attached to the instrument. Many times
repair turnaround is unnecessarily delayed due to a lack of
repair instructions or of a detailed description of the problem.
This description should include information such as
measurement range, and other instrument settings, type of
components being tested, are the symptoms intermittent?,
conditions that may cause the symptoms, has anything
changed since the last time the instrument was used?, etc.
Any detailed information provided to our technicians will assist
them in identifying and correcting the problem in the quickest
possible manner. Use a copy of the Repair and Calibration
Service form provided on the next page.
Once this information is prepared and sent with the instrument
to our service department, we will do our part in making sure
that you receive the best possible customer service and
turnaround time possible.
Expedite Repair & Calibration Form
Page 4-2
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SERVICE INFORMATION
Use this form to provide additional repair information and
service instructions. The Completion of this form and including
it with your instrument will expedite the processing and repair
process.
Instrument
Model #:
Company:
Phone
Number:
Contact Info:
Repair Instructions:
Evaluation Calibration Only Repair Only
Repair & Calibration Z540
Detailed Symptoms:
Include information such as measurement range, instrument
settings, type of components being tested, is the problem
intermittent? When is the problem most frequent?, has
anything changed with the application since the last time the
instrument was used?, etc.
Page 4-3
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SERVICE INFORMATION
Warranty
TEGAM, Inc. warrants this product to be free from defects in
material and workmanship for a period of one year from the
date of shipment. During this warranty period, if a product
proves to be defective, TEGAM Inc., at its option, will either
repair the defective product without charge for parts and
labor, or exchange any product that proves to be defective.
TEGAM, Inc. warrants the calibration of this product for a
period of one year from date of shipment. During this period,
TEGAM, Inc. will recalibrate any product, which does not
conform to the published accuracy specifications.
In order to exercise this warranty, TEGAM, Inc., must be
notified of the defective product before the expiration of the
warranty period. The customer shall be responsible for
packaging and shipping the product to the designated TEGAM
service center with shipping charges prepaid. TEGAM Inc. shall
pay for the return of the product to the customer if the
shipment is to a location within the country in which the
TEGAM service center is located. The customer shall be
responsible for paying all shipping, duties, taxes, and
additional costs if the product is transported to any other
locations. Repaired products are warranted for the remaining
balance of the original warranty, or 90 days, whichever period
is longer.
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Tegam R1L-E2A Manuel utilisateur

Tegam
Marque
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Modèle
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Taper
Manuel utilisateur
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