ETS-Lindgren L.P., reserves the right to make changes to any
product described herein in order to improve function, design, or
for any other reason. Nothing contained herein shall constitute
ETS-Lindgren L.P. assuming any liability whatsoever arising out
of the application or use of any product or circuit described
herein. ETS-Lindgren L.P. does not convey any license under its
patent rights or the rights of others.
HI-4453/FP5083/FP4083/FP2083, MANUAL, Part #600064
Revision Description Date
Initial Release October, 1993
A Isotropicity Spec October, 1994
B Changed Battery Charger June, 1997
C Added CE Label June, 1997
D Changed Charger Specs August, 1999
E Changed Area Code February, 2000
F Revised June, 2005
The HI-4453/FP5083/FP4083/FP2083 Electric Field Probes
embody the latest innovations in isotropic sensor design and low
noise, miniaturized electronics. The HI4453/FP5083/FP4083/FP2083 probes are fully intelligent sensor
enabling fast and accurate EMF measurements with industryleading performance specifications. Optical coupling to a variety
of readout options makes this probe ideally suited for a wide
range of field monitoring applications. The HI4453/FP5083/FP4083/FP2083 probes are excellent tools for
electric field mapping, RADHAZ measurements and EMC field
monitoring.
The basic HI-4453/FP5083/FP4083/FP2083 probes are shipped
complete with a 10 meter fiber extension cable, a carrying case,
battery charger and connectors for extending the optic cable.
The HI-4453/FP5083/FP4083/FP2083 probe assembly consists
of a spherical casing, containing the sensor, which is mounted
on one end of a shaft; the other end of the shaft is attached to an
extrusion that houses the electronics (Figure 1). The sensor and
electronics housing operate, and are calibrated, as a unit.
The HI-4453/FP5083/FP4083/FP2083 measures the field
strength in each of three axes. Frequency response of the HI4453/FP5083/FP4083/FP2083 is 80 MHz to 40 GHz; dynamic
range is 3 to 300 Volts per meter (V/m).
Probe diameter: 102 mm (4.0 in)
Weight: 0.54 Kg (19 oz.)
Optional
Equipment:
3 to 300 Volts/meter
(V/m)
10, 30, 100, 300 V/m
full scale
80 MHz to 26 GHz ±
1.5 dB
26 GHz to 40.0 GHz
± 3.0 dB
± 0.5 dB full scale
(F.S.): ± 2 least
significant bits (LSBs)
of A/D converter
± 1.2 dB
6 times full scale
(each range)
Operating
Temperature:
Standard FSMA
3.6 VDC, 1400 mA-h
rechargeable NiCd)
115/230 VAC,
approximately 1 hr
17 Hrs continuous
(full charge)
¼ - 20 UNC tapped
hole (internal thread)
in base of probe
Length (including
electronics housing):
Step 1. Upon delivery of your order, inspect the shipping
container(s) for evidence of damage. Record any damage on
the delivery receipt before signing. In case of concealed
damage or loss, retain the packing materials for inspection by
the carrier.
Step 2. Remove the probe and battery charger from their
shipping containers. Save the boxes and any protective packing
materials for future use.
Step 3. Check all materials against the packing list to verify that
the equipment received matches what was ordered. If you find
any discrepancies, note them and call ETS-Lindgren Customer
Service for further instructions.
Be sure that you are satisfied with the contents of your order and
the condition of your equipment before installing the probe.
PROBE
A switch, two fiber optic connectors and a battery charger
connector are mounted on the HI-4453/FP5083/FP4083/FP2083
electronics housing (Figure 2).
XMIT/RCV
The fiber optic cable assembly from the receiver is attached to
the probe via two connectors. The cables are color-coded—
white for XMIT, yellow for RCV. Identically-colored dots are
located on the electronics housing adjacent to these connectors.
Be sure that each cable is attached to the proper probe
connector.
When the fiber optic cables are not attached, always cover the
probe connectors with the protective plastic covers supplied with
the unit, or with similar material. This prevents dirt or other
contaminants from entering the connector and causing
communication problems.
Figure 2: Switch and Connectors
ARM/OFF
The ARM/OFF switch activates and deactivates the probe. In
the “ARM” position, its internal 3.6 VDC NiCd battery powers the
probe: in the “OFF” position, the probe is inactive. To prolong
battery life, set the ARM/OFF switch to “OFF” at the end of a test
sequence or when the probe is not in use.
Charger
A standard fast charger is supplied with the HI4453/FP5083/FP4083/FP2083. When charging is complete, the
fast charger acts as a trickle charger. The battery can be left on
this maintenance mode indefinitely and its performance will not
degrade.
The NiCd battery provides up to 17 hours of probe operation
when fully charged.
BATTERY CHARGING
Each HI-4453/FP5083/FP4083/FP2083 probe contains a
rechargeable nickel-cadmium (NiCd) battery. A fully-charged
battery (nominal output voltage of 3.6 VDC) provides up to 17
hours of continuous operation.
NOTE: ETS-Lindgren charges the internal NiCd
battery of the HI-4453/FP5083/FP4083/FP2083
at the factory in order to calibrate the probe prior
to shipment. While every effort is made to
ensure that your probe arrives ready to use, we
cannot guarantee that this will be the case.
Always check the condition of the probe's
battery prior to making any measurements.
Charging Procedure
Step 1. Plug the charger into a suitable AC source.
Step 2. Set the probe switch to OFF. Insert the plug on the
charger cable into the probe's CHARGER jack.
Step 3. The battery is now charging. This may take
approximately one hour, depending on how deeply the batteries
are discharged. When charging is complete, the charger
automatically goes into a trickle charge and will continue to do so
until the probe is disconnected.
Battery Tips
NiCd batteries have several characteristics that can affect both
their performance and operating life. The following tips advise
you how to take advantage of these characteristics to get the
most out of your probe’s battery.
•Although NiCd batteries are rated for operation in
temperatures from -20°C to +65°C (-4 °F to +140 °F),
operating the probe in extreme temperatures will reduce
operating time significantly. The optimum operating
temperature range for these batteries is
+20°C to +30°C (+68°F to +86°F).
•The battery in the HI-4453/FP5083/FP4083/FP2083
probe does not require periodic "deep discharges" to
reverse the capacity-depleting "memory effect" caused
by repeated shallow discharges; however,
undercharging can reduce battery capacity. Therefore,
after the charging procedure is complete, be sure that
the battery is fully charged before resuming field
operation.
•If the battery exhibits low terminal voltage during
charging, or if it appears unable to acquire or maintain
an appreciable charge, individual cells in the battery may
be shorted or damaged. If, for any reason, your battery
needs replacement, contact ETS-Lindgren Customer
Service for assistance.
This section discusses the theory of operation and the functions
of the HI-4453/FP5083/FP4083/FP2083 Isotropic Electric Field
Probe. A high-level block diagram (Figure 3) is included to aid
the discussion. The objective is to provide information
enhancing user understanding of the design of this probe.
SYSTEM THEORY
The HI-4453/FP5083/FP4083/FP2083 Broadband Isotropic
Electric Field Probe utilizes a microprocessor for intelligent
operation and control. The probe's self-contained power supply
employs a 3.6 VDC NiCd battery, which provides up to 17 hours
of continuous operation.
For each axis, the probe measures the radio frequency signal
level and generates a linearized reading of the measurement.
The result is transmitted to the readout over glass fiber optic
cables. See "Probe Operation" for a more detailed explanation
of the functioning of the HI-4453/FP5083/FP4083/FP2083.
The probe relays data to the readout via either a short form or
long form output word. See Appendix B for details on both
output word formats.
For some applications, you may use a computer with an RS232
serial port to communicated directly with the HI4453/FP5083/FP4083/FP2083 via ETS-Lindgren’s optional HI4413P Fiber Optic/RS232 Interface.
Receiver commands to the probe consist of the following:
• Send reading
• Read battery voltage
• Zero
• Set sleep timer
• Switch range
• Read temperature
• Enable axis
The signal flow within the probe is shown in the block diagram.
To measure field strength, three mutually orthogonal dipole
antennas (one per axis) are used to provide an isotropic
response to the ambient field. The signal from each axis is fed
to a Schottky diode detector operating in its Square-Law region.
After filtering, the signals generated by each axis are fed to the
instrumentation amplifier, whose output feeds the selectable
range/offset stage.
For each of the four ranges, the selectable range and offset
stage provides a coarse analog zero for the measured signal.
The output of the range/offset stage is fed to the A/D multiplexer,
then to the analog-to-digital (A/D) converter itself.
After acquiring the composite three-axis signal, the
microprocessor commands the A/D multiplexer to read the
battery voltage and temperature sensing lines. Data from the
A/D converter is fed to the microprocessor, which transmits it to
the receiver.
The EEPROM stores all calibration data for the probe.
A sealed rechargeable 3.6 VDC NiCd battery, which drives both
the analog and digital power supplies, powers the HI4453/FP5083/FP4083/FP2083 probe. Separate power sources
provide isolation between the analog and digital circuitry. With
the probe switch in the “ARM” position, battery voltage is applied
to the power switch, which routes this voltage to the power
supply, enabling the microprocessor. A timer circuit controls the
power switch. The timer monitors the fiber optic connector input
line to determine whether the probe has received a command
during a specified period (several seconds). If no command is
received during this period, the timer signals the power switch to
disable the power supply and the microprocessor. In essence,
the probe goes dormant to conserve battery power; only the fiber
optic input circuitry remains active in order to detect new
commands. When the next command from the receiver reaches
the probe, power is reapplied automatically and the processor is
reactivated, "waking up" the probe.
NOTE: The probe uses volatile random access
memory (RAM). If, for any reason, power to the
probe is lost, the probe must be re-zeroed.
Zeroing
When the receiver sends a zero command, the probe must be in
a zero field environment. This is because the zero command
causes the multiplexer (via the processor) to perform a normal
read cycle on the composite axis signal. This procedure is
executed for all ranges. When the processor receives all the
zero-field values, it stores them in a special register; these
values are subtracted from all subsequent measurements.
Therefore, a probe that is zeroed while it is not in a zero field
environment will give erroneous readings.
The following subsections contain information designed to help
you maximize the effectiveness of the HI4453/FP5083/FP4083/FP2083.
Out-of-Band Considerations
Although the HI-4453/FP5083/FP4083/FP2083 is nominally
rated for operation from 80 MHz to 40 GHz, it responds to
signals both above and below these frequencies. Such
responses must be taken into account when performing certain
operations, such as zeroing.
On the lower end, the HI-4453/FP5083/FP4083/FP2083 can
exhibit significant response to frequencies below 80 MHz. Such
out-of-band responses pose a problem when zeroing the unit,
since that operation obviously assumes a zero field condition. At
the upper end, similar problems can occur. The specified upper
operating limit for this probe is 40 GHz. Above this limit there will
be some response, though it will not be consistent or predictable.
Any probe response to out-of-band frequencies must be
compensated for when zeroing the probe.
Resolution Limitations
Limitations in probe resolution may result in a non-zero reading
when the receiver is zeroed. If this occurs, it does not
necessarily mean either that there is a problem with the receiver
or that your readings are inaccurate. Receiver linearity is
specified as + 0.5 dB full scale: in addition, the variance of the
A/D converter is + 2 least significant bits. When using the most
sensitive range on a given probe, these specifications create the
possibility that, under zero field conditions, the receiver may
display a non-zero value.
It is very important to keep conductive objects away from the HI4453/FP5083/FP4083/FP2083. Any such objects in the
proximity of the probe may distort the near field and compromise
measurement accuracy. If your application requires
measurements from a fixed position, always mount the probe on
a non-metallic platform, using non-metallic screws.
This section explains which maintenance tasks can be
performed by the user. It also provides information regarding
replacement and optional parts. If you have any questions
concerning probe maintenance, consult ETS-Lindgren Customer
Service.
MAINTENANCE RECOMMENDATIONS
Maintenance of the HI-4453/FP5083/FP4083/FP4083 probe is
limited to external components such as cables or connectors.
Any calibration or maintenance task that requires probe
disassembly should be performed at the factory. Check with
ETS-Lindgren Customer Service (+1-512-531-6400) before
opening the unit to avoid problems with your probe's warranty.
NOTE: Opening the probe enclosure may void your
warranty. If your system is still under warranty, contact
ETS-Lindgren Customer Service before performing any
maintenance inside the probe.
UPGRADE POLICIES
Periodically, probes are upgraded to enhance functionality.
These upgrades are commonly announced through ETSLindgren Engineering Bulletins.
RETURN PROCEDURES
To return a system or system component, use the following
procedure.
Step 1. Contact ETS-Lindgren Customer Service (+1-512-531-
Step 2. Briefly describe the problem in writing. Give details
regarding the observed symptom(s) or error codes, and whether
the problem is constant or intermittent in nature. Please include
the date(s), the service representative you spoke with, and the
nature of the conversation. Include the serial number of the item
being returned.
Step 3. Package the system or component carefully. Use the
original packing boxes and materials, if possible.
If the probe is under warranty, refer to the Limited Warranty
section of this manual for additional information about your
return.
PERIODIC/PREVENTIVE MAINTENANCE
The HI-4453/FP5083/FP4083/FP2083 probe assembly (sensor
and electronics housing) requires an annual calibration to verify
that they are performing within specifications. ETS-Lindgren
service personnel may perform this calibration at the factory.
Return your probe(s), using the original packing materials (if
possible), to:
5. WARRANTY POLICY FOR
ELECTROMAGNETIC ISOTROPIC
FIELD MONITORING
COMPONENTS
SCOPE AND DURATION OF WARRANTIES
Seller warrants to Buyer that the Holaday Brand Products to be
delivered hereunder will be (1) free from defects in material,
manufacturing workmanship, and title, and (2) conform to the
Seller’s applicable product descriptions and specifications, if any,
contained in or attached to Seller’s quotation. If no product
descriptions or specifications are contained in or attached to the
quotation, Seller’s applicable product descriptions and
specifications in effect on the date of shipment shall apply. The
criteria for all testing shall be Seller’s applicable product
specifications utilizing factory-specified calibration and test
procedures and instruments.
All product warranties, except the warranty of title, and all remedies for warranty
failures are limited in time as shown in the table below.
Any product or part furnished to Buyer during the warranty period
to correct a warranty failure shall be warranted to the extent of
the unexpired term of the warranty applicable to the repaired or
replaced product.
Product Warranted
FM5004 3 Years
HI-6005 3 Years
HI-6001 3 Years
HI-4450 3 Years
FP-4080 3 Years
FP-5000 3 Years
FP-2080 3 Years
HI-4453 3 Years
FP-4083 3 Years
FP-5083 3 Years
FP-2083 3 Years
FP-5080 3 Years
FP-4000 3 Years
FP-2000 3 Years
HI-4422 3 Years
The warranty period shall commence on the date the product is
delivered to Buyer; however, if Seller as sembles the product, or
provides technical direction of such assembly, the warranty
period for such product shall commence on the date the
assembly of the product is complete. Notwithstanding the
foregoing, in the event that the assembly is delayed for a total of
thirty (30) days or more from the date of delivery for any reason
or reasons for which Seller is not responsible, the warranty
period for such product may, at Seller’s options, commence on
the thirtieth (30th) day from the date such product is delivered to
Buyer. Buyer shall promptly inspect all products upon delivery.
No claims for shortages will be allowed unless shortages are
reported to Seller in writing within ten (10) days after delivery. No
other claims against Seller will be allowed unless asserted in
writing within thirty (30) days after delivery (or assembly if the
products are to be assembled by Seller) or, in the case of
alleged breach of warranty, within the applicable warranty period.
WARRANTY EXCLUSIONS
Except as set forth in any applicable patent indemnity, the
foregoing warranties are exclusive and in lieu of all other
warranties, whether written, oral, express, implied, or statutory.
EXCEPT AS EXPRESSLY STATED ABOVE, SELLER MAKES
NO WARRANTY, EXPRESS OR IMPLIED, BY STATUTE OR
OTHERWISE, WHETHER OF MERCHANTABILITY OR
FITNESS FOR ANY PARTICULAR PURPOSE OR USE OR
OTHERWISE ON THE PRODUCTS, OR ON ANY PARTS OR
LABOR FURNISHED DURING THE SALE, DELIVERY OR
SERVICING OF THE PRODUCTS. THERE ARE NO
WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION
ON THE FACE HEREOF.
Warranty coverage does not include any defect or performanc e
deficiency (including failure to conform to product descriptions or
specifications) which results, in whole or in part, from (1)
negligent storage or handling of the product by Buyer, its
employees, agents, or contractors, (2) failure of Buyer to prepare
the site or provide an operating environmental condition in
compliance with any applicable instructions or recommendations
of Seller, (3) absence of any product, component, or accessory
recommended by Seller but omitted at Buyer’s direction, (4) any
design, specification, or instruction furnished by Buyer, its
employees, agents or contractors, (5) any alteration of the
product by persons other than Seller, (6) combining Seller’s
product with any product furnished by others, (7) combining
incompatible products of Seller, (8) interference with the radio
frequency fields due to conditions or causes outside the product
as furnished by Seller, (9) improper or extraordinary use of the
product, or failure to comply with any applicable instructions or
recommendations of Seller, or (10) acts of God, acts of civil or
military authority, fires, floods, strikes or other labor
disturbances, war, riot, or any other causes beyond the
reasonable control of Seller. This warranty does not cover
batteries or any item that is designed to be consumable. Seller
does not warranty products of others, which are not included in
Seller’s published price lists.
BUYER’S REMEDIES
If Seller determines that any product fails to meet any warranty
during the applicable warranty period, Seller shall correct any
such failure by either, at its option, repairing, adjusting, or
replacing without charge to Buyer any defective or
nonconforming product, or part or parts of the product. Seller
shall have the option to furnish either new or exchange
replacement parts or assemblies.
Warranty service during the applicable warranty period will be
performed without charge to Buyer within the contiguous 48
United States during Seller’s normal business hours. After the
warranty period, service will be performed at Seller’s prevailing
service rates. Subject to the availability of personnel, after-hours
service is available upon request at an additional charge. For
service outside the contiguous 48 United States, travel and per
diem expenses, when required, shall be the responsibility of the
Buyer, or End User, whichever is applicable.
The remedies set forth herein are conditioned upon Buyer
promptly notifying Seller within the applicable warranty period of
any defect or nonconformance and making the product available
for correction.
The preceding paragraphs set forth Buyer’s exclusive remedies
and Seller’s sole liability for claims based on failure of the
products to meet any warranty, whether the claim is in contract,
warranty, tort (including negligence and strict liability) or
otherwise, and however instituted, and, upon the expiration of
the applicable warranty period, all such liability shall terminate.
IN NO EVENT SHALL SELLER BE LIABLE TO BUYER FOR
ANY SPECIAL INDIRECT, INCIDENTAL OR CONSEQUENTIAL
DAMAGES OF ANY KIND ARISING OUT OF, OR AS A
RESULT OF, THE SALE, DELIVERY, NON-DELIVERY,
SERVICING, ASSEMBLING, USE OR LOSS OF USE OF THE
PRODUCTS OR ANY PART THEREOF, OR FOR ANY
CHARGES OR EXPENSES OF ANY NATURE INCURRED
WITHOUT SELLER’S WRITTEN CONSENT DESPITE ANY
NEGLIGENCE ON BEHALF OF THE SELLER. IN NO EVENT
SHALL SELLER’S LIABILITIES UNDER ANY CLAIM MADE BY
BUYER EXCEED THE PURCHASE PRICE OF THE PRODUCT
IN RESPECT OF WHICH DAMAGES ARE CLAIMED. This
agreement shall be construed in accordance with laws of the
State of Illinois. In the event that any provision hereof shall
violate any applicable statute, ordinance, or rule of law, such
provision shall be ineffective to the extent of such violation
without invalidating any other provision hereof.
Any controversy or claim arising out of or relating to the sale,
delivery, nondelivery, servicing, assembling, use or loss of use of
the products or any part thereof or for any charges or expenses
in connection therewith shall be settled in Austin, Texas by
arbitration in accordance with the Rules of the American
Arbitration Association, and judgment upon the award rendered
by the Arbitrator may be entered in either the Federal District
Court for the Western District of Texas or the State District Court
in Austin, Texas, all of the parties hereto consenting to personal
jurisdiction of the venue of such court and hereby waive the right
to demand a jury trial under any of these actions
If an error occurs, the probe will respond with one of the
following strings. These strings begin with a colon and end with
a carriage return.
E01 Communication error (e.g., overflow).
E02 Buffer full error. Too many characters
contained between the Start
Character/Carriage Return sequence.
E03 The received command is not valid.
E04 The received parameter is not valid.
E05 Hardware error (e.g., EEPROM failure).
E06 Parity error.
The information in this appendix assumes that you have
purchased the optional HI-4413P Fiber Optic/RS232 Interface,
and are capable of communicating directly with the HI4453/FP5083/FP4083/FP2083 probe via computer. No system
readout is required when using this configuration.
COMMUNICATION PROTOCOL
Data Type:
Data Mode:
Word Length:
Parity:
Stop Bits:
Data Rate:
RS-232 Serial
Asynchronous
7 bit
Odd
1
9600 baud
INFORMATION TRANSFER PROTOCOL
The HI-4453/FP5083/FP4083/FP2083 operates as a Controller
Mode device. This probe only responds to commands from
another device; it transmits no data without receiving instructions
to do so.
Command Structure
A command to an HI-4453/FP5083/FP4083/FP2083 probe
consists of
When it completes the command, the probe responds with a
string consisting of
1) A start character (":")
2) The command letter, followed by
3) Data, if required, and terminated with
4) A carriage return.
If the command does not require the probe to return any data,
the probe simply responds with the command letter and a
carriage return. If an error occurs, the probe responds with an
error code, as detailed in Appendix A.
COMMANDS
Command Description
Axxx Axis enable/disable. x = "E" means enable, x =
"D" means disable. xxx order is X axis, Y axis, Z
axis
B Read battery voltage.
Cx Set baud rate.
x = 1 sets rate to 2400 baud
x = 2 sets rate to 9600 baud
New baud rate does not take effect until the next
power-up.
Dx Read probe data.
x = 1 enables short form output
x = 2 enables long form output
Lx Load table data.
x = ASCII hex data
Rx Set range.
x = 1, 2, 3, 4 or N (next range)
Sx Sleep timer.
x = number of seconds to wait for a command
before putting the probe into the sleep mode.
Tx Read Temperature.
x = C or F
Ux Set unit type.
x = 1, 2, 3, or N (next unit)
1 = V/m
2 = mW/cm²
3 = [V/m]²
(underscore indicates a space character)
D2 Dxx.xxuuurrrobaaat, the long form output.
xx.xx = the reading, as described for D1.
uuu = units, as describe for D1.
rrr = recorder out value (A 3-digit ASCII number
from 0 to 255).
o = over range indicator ("N" = ok, "O" = over
range).
b = battery status ("N" = safe operating level, "W"
= warning level, "F" = fail level).
aaa = axis enable ("E" = enabled).
t = terminating carriage return.
Rx Rx, where x is the range.
x = "" returns the range currently in use
x = 1, 2, 3, 4 enables the selected range
x = N sets the probe to the next (higher) range.
TF Txxx, where xxx is temperature in ° Fahrenheit.
TC Txxx, where xxx is temperature in ° Centigrade.
Vtx Vxx[xx...], where xx is table data in ASCII hex.
ETS-Lindgren L.P. reserves the right to make changes to any
product described herein in order to improve function, design or
for any other reason. Nothing contained herein shall constitute
ETS-Lindgren L.P. assuming any liability whatsoever arising out
of the application or use of any product or circuit described
herein. ETS-Lindgren L.P. does not convey any license under its
patent rights or the rights of others.
This symbol alerts the user that important
literature concerning the operation and
maintenance of this unit has been included.
Therefore, it should be read carefully in order
to avoid any problems.
Warning
This is a Safety Class I product (provided with
a protective earthing ground incorporated in
the power cord). The mains plug shall only be
inserted in a socket outlet provided with a
protective earth contact. Any interruption of
the protective conductor, inside or outside the
instrument, is likely to make the instrument
dangerous. Intentional interruption is
prohibited. DO NOT defeat the earthgrounding protection by using an extension
cable, power cable, or autotransformer without
a protective ground conductor
This instrument is to be used with a three-wire
power cord set which meets or exceeds the
requirements of EN60799. The power cord set
used must be rated for a minimum of
250V/10A. When connected to an appropriate
power line outlet, this cable grounds the
instrument cabinet
Warning
No operator serviceable parts exist inside the
device. Refer servicing to qualified personnel.
To prevent electrical shock, do not remove
cover.
Warning
If this instrument is used in a manner not
specified by ETS-Lindgren, the protection
provided by the instrument may be impaired.
Warning
This battery charger incorporates parts, such
as a switch and relay that potentially could
produce sparks or arcs.
Warning
For indoor use only, do not expose to rain.
The 491198-36 NiCd Battery Fast Charger is a dual power
source battery charger. It charges 3.6 volt 1400 mAH NiCd
batteries and is powered by 120-240 Vac line power or 12.5 Vdc.
The 491198-36 uses a -(dV)/(dT) (negative delta V) technique to
determine when the battery is fully charged, typically one hour.
With this technique, the charge state of the battery has no effect
other than shortening the charge time.
Housed in a rugged enclosure, power enters the battery charger
through a power entry module, which contains the fuses, or an
optional cigarette lighter plug adapter. LEDs and the label on the
front face of the unit provide operating status. The battery
charger connects to the device being charged through a short
cord terminated with a power jack.
An integrated circuit within the charger monitors the battery
voltage and controls the charging functions according to the
charge state of the battery.
This section contains information on unpacking and acceptance
of the 491198-36 NiCd Battery Fast Charger.
Step 1. Upon delivery of your order, inspect the shipping
container(s) for evidence of damage. Record any damage on
the delivery receipt before signing. In case of concealed
damage or loss, retain the packing materials for inspection by
the carrier.
Step 2. Remove the product from its shipping container. Save
boxes and any protective packing materials for future use.
Step 3. Check all materials against the packing list to verify that
the equipment received matches that which was ordered. If you
find any discrepancies, note them and call ETS-Lindgren
Customer Service for further instructions.
Be sure that you are satisfied with the contents of your order and
the condition of your equipment before
Alternate: Automobile cigarette lighter to 2mm power plug
adapter cord., 12.5 Vdc, 100 mA
Fuses: 250 Volt, 1.0 Amp, Type T (5 mm x 20 mm)
OUTPUT
Open Circuit Voltage: 15 Vdc
Fast Charge Pending Current: 60 mA
Fast Charge Current: 1400 mA
Pulsed Trickle Charge Current: 50 mA
Output Voltage (During Fast Charge): 3 - 6 Vdc
NICD BATTERY:
3.6 Volt 3 Cell NiCd Battery, 1400 mAH (Rapid charge cells, 1.2
volts/cell); ETS-Lindgren Part #491038
ENVIRONMENTAL
Operating temperature 10 to 40{ C
Humidity: 5% to 95% relative humidity,
non-condensing
POWER CABLE
This charger is shipped with a three-wire power cable. When
this cable is connected to an appropriate AC power source, it
connects the chassis to earth ground. The type of power cable
shipped with each battery charger depends on the country of
destination.
The 491198-36 battery charger is intended to charge the 3.6 volt
NiCd batteries, either in the lab or in the field.
INPUT POWER REQUIREMENTS
The 491198-36 charger may be powered by standard line
voltage (110 - 240 Vac, 50 - 60 Hz) or by an optional automobile
cigarette lighter plug (12.5 Vdc), see specifications. The AC
power entry module contains a fuse.
FUSE REPLACEMENT
If a fuse has blown, it must be replaced with the same type and
value or an unsafe condition may result. Refer to Figure 2 for
fuse replacement.
The fuse is contained in the fuse drawer in the power input
module. To access the fuse, use a screwdriver to pry the drawer
open and remove it from the module. The drawer holds two
fuses; the fuse towards the outside of the drawer is a spare.
After the fuse has been replaced, slide the fuse drawer back into
the module. Make sure that it snaps securely into its locked
position.
There are five LEDs located on the front of the charger that
provide operating information to the user.
The “POWER ON” LED (green) will remain illuminated as long
as the charger is plugged into the AC power source.
If the charger does not detect a battery, the “NO BATTERY” LED
(amber) light will illuminate.
When the charger does detect the unit’s battery, the “PENDING”
LED (amber) light illuminates while the charger qualifies the
battery for fast charge. If the voltage is below the safe fast
charge level, the battery is charged in the pulse trickle mode.
When the voltage is at a safe level the charger will switch to the
fast charge mode and the “CHARGING” LED (amber) light
illuminates.
When charging is complete, the charger switches back to the
pulse trickle mode and the “COMPLETE” LED (green) light will
illuminate. The device can be left on the charger in this
maintenance mode indefinitely.