HAMMON MANUFACTURING 178 Series User manual

MEDICAL LINE ISOLATION
Series 178, 240, 289, 298 “MG”
Medical Grade Isolation Transformer
USER GUIDE

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© 2018. Hammond Manufacturing Ltd. All rights reserved.
Medical Grade (MG) Isolation Series
Attention - - Consult Accompanying Documents
Safety Instructions and Warnings
Your Hammond MG Series isolation transformer is Underwriters Laboratories listed to UL60601-1 and evaluated to
CSA CAN/CSA-C22.2 No. 601.1-M90 (R2005) as a low leakage power supply.
These devices are intended for NON-patient connected indoor applications protecting sensitive electronic
equipment. These are not intended to be used to supply power to life support appliances. Units feature hospital grade
plugs and receptacles and must be connected to comparable hospital grade plugs and receptacles in order to maintain
electrical and mechanical grounding. The MG Series isolation transformer provides noise filtering plus utilizes a
Faraday shield to reduce leakage currents to below UL60601-1 requirements. Every unit is 100% tested and inspected
before packing. Note: All units are 50/60Hz & tolerance on input voltage is +/- 10%.
Units in this Series:
Model Input Voltage Input Current Output Voltage Output Current
178MG500 120Volts 4.33Amps 120Volts 4.17Amps
240MG500 240Volts 2.17Amps 240Volts 2.08Amps
289MG500 240Volts 2.17Amps 120Volts 4.17Amps
298MG500 120Volts 4.33Amps 240Volts 2.08Amps
178MG1000 120Volts 8.67Amps 120Volts 8.33Amps
240MG1000 240Volts 4.33Amps 240Volts 4.17Amps
289MG1000 240Volts 4.33Amps 120Volts 8.33Amps
298MG1000 120Volts 8.67Amps 240Volts 4.17Amps
178MG1800 120Volts 15.63Amps 120Volts 15.00Amps
240MG1800 240Volts 7.81Amps 240Volts 7.50Amps
289MG1800 240Volts 7.81Amps 120Volts 15.00Amps
298MG1800 120Volts 15.63Amps 240Volts 7.50Amps

Quality Products. Service Excellence.
www.hammondmfg.com
© 2018. Hammond Manufacturing Ltd. All rights reserved.
Please observe the following Cautions!
-Do not connect these units to an ungrounded source or use an extension cord that does not have a ground
connection.Modifying or bypassing the ground pin for use in a non-grounded receptacle may lead to electrical shock,
and is not recommended.
-To reduce the risks of electric shock, do not remove the cover of this device for any reason.There are no user
serviceable parts inside.
-These transformers are designed for interior use and are to be used in dry locations only; do not expose this
transformer to rain, excessive moisture or other sources of conductive contaminates.
-These transformers should not be used in the presence of flammable gases or accelerants such as anesthetic
mixtures, oxygen or nitrous oxide.
-The use of adaptor plugs or other accessories is not recommended.
-For equipment that requires an external ground connection use the external potential equalization conductor marked.
This symbol represents:
The Potential Equalization Conductor
The Protective Earth (Ground) Conductor
Built In Protection
Your Hammond MG Series isolation transformer has both a current breaker and an automatic thermal cut out built in
for added protection. Should the breaker trip due to excessive current load, remove all of the loads by unplugging
them from the receptacles. Cycle the on/off switch to reset the breaker. Re-evaluate the total current load before
plugging all of the loads back into the receptacles. The sum of the current draw of the equipment plugged into the
receptacles must not exceed the rated current of the transformer indicated on the product label.
Should your MG Series transformer ever over heat for any reason the built in TCO’s will automatically cut the power
to the receptacles. You must then unplug your transformer from your power source and allow the unit to sufficiently
cool before restoring the power.

Quality Products. Service Excellence.
www.hammondmfg.com
© 2018. Hammond Manufacturing Ltd. All rights reserved.
Installation and Unit Care:
-The device should always be located in such a way that it maintains proper ventilation and never be placed anywhere
that may impede the flow of air through its ventilation slots. Transformers should be placed on a level surface and
always oriented up-right on their rubber feet.Do not use in an ambient temperature higher than 600C.
-Power cables should be routed so they are not likely to trip anybody and/or become pinched by items placed on them
or against them. Special attention should be paid to areas where plugs enter the receptacles and where the cord exits
the device.
-These Transformers should be cleaned only with mild cleaning solutions applied to a soft cloth and then wipe off the
unit to remove light dirt and dust. Never spray liquids directly on these units to avoid electrical shock and damage to
the unit.
-Do not use the unit if the plug or power supply cord has been impaired or if the transformer has been dropped and
the enclosure or the receptacles are damaged.
-Do not use the unit if material has fallen into or liquid has spilled inside the transformer.
Environmental Conditions for Operation, Transport and Storage:
-Transport the unit in the original carton and packing material.
-Some of the units in this series are heavier than 18Kg (40 lb). Please use safe practices when lifting.
-Upon unpacking, use both integral handles on the unit to lift and transport. If carrying over extended distances,
please use a proper material handling device to help transport
-This unit has environmental requirements similar to other electrical equipment. It is designed for indoor storage only,
in areas where it will not be subject to excessive moisture, dust, or dirt.
-For Operation, do not expose this unit to temperatures below -15 or above 55°C (5 to 131°F).
-For Storage and Transportation, do not expose this unit to temperatures below -20 or above 65°C (4 to 149°F).
-In any condition, do not expose this unit to relative humidity in excess of 95% RH (non-condensing).
Our Contact information:
In Canada: In U.S.A.:
394 Edinburgh Rd. – Guelph, Ont. – N1H 1E5 475 Cayuga Rd. – Cheektowaga, NY – 14225
1-519-822-2960 – FAX [phone] – FAX [phone]
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