HT instruments HT8000 User Manual
ENGLISH
User manual
Copyright HT ITALIA 2013 Release EN 1.01 - 24/09/2013
HT8000
Table of Contents:
1. SAFETY PRECAUTIONS AND PROCEDURES .......................................................... 2
1.1. Preliminary............................................................................................................. 2
1.2. During use ............................................................................................................. 3
1.3. After use ................................................................................................................ 3
2. GENERAL DESCRIPTION ........................................................................................... 4
3. PREPARATION FOR USE ........................................................................................... 4
3.1. Initial ...................................................................................................................... 4
3.2. Supply Voltage ...................................................................................................... 4
3.3. Calibration ............................................................................................................. 4
3.4. Storage .................................................................................................................. 4
4. OPERATING INSTRUCTIONS ..................................................................................... 5
4.1. Instrument Description ........................................................................................... 5
4.2. FUNCTION Keys description ................................................................................. 6
4.2.1. POWER key ................................................................................................................. 6
4.2.2. INPUT/OUTPUT key .................................................................................................... 6
4.2.3. V/mV key ...................................................................................................................... 6
4.2.4. mA/% key ..................................................................................................................... 6
4.2.5. and arrow keys .................................................................................................... 6
4.2.6. Deactivation of the Auto power off function .................................................................. 6
4.3. Functions description ............................................................................................. 7
4.3.1. DC Voltage measurement ............................................................................................ 7
4.3.2. DC Voltage generation ................................................................................................. 8
4.3.3. DC current measurement ............................................................................................. 9
4.3.4. DC current generation ................................................................................................ 10
4.3.5. Loop current measurement of external transducers .................................................. 11
4.3.6. Simulating of a transducer ......................................................................................... 12
5. MAINTENANCE .......................................................................................................... 13
5.1. General Information ............................................................................................. 13
5.2. Battery Replacement ........................................................................................... 13
5.3. Fuses Replacement ............................................................................................. 13
5.4. Cleaning .............................................................................................................. 13
5.5. End of life ............................................................................................................ 13
6. TECHNICAL SPECIFICATIONS ................................................................................. 14
6.1. Technical Features .............................................................................................. 14
6.1.1. Reference standards .................................................................................................. 14
6.1.2. General data .............................................................................................................. 14
6.2. Environment ........................................................................................................ 14
6.2.1. Environmental conditions ........................................................................................... 14
6.3. Accessories ......................................................................................................... 14
7. SERVICE .................................................................................................................... 15
7.1. Warranty Conditions ............................................................................................ 15
7.2. Service ................................................................................................................ 15
EN - 1
HT8000
1. SAFETY PRECAUTIONS AND PROCEDURES
This instrument complies with safety Standard IEC/EN61010-1 related to electronic
measuring instruments. For your own safety and to avoid damaging the instrument follow
the procedures described in this instruction manual and read carefully all notes preceded
by this symbol .
When taking measurements:
Avoid doing that in humid or wet places.
Avoid doing that in rooms where explosive gas, combustible gas, steam or excessive
dust is present.
Keep you insulated from the object under test.
Do not touch exposed metal parts such as test lead ends, sockets, fixing objects,
circuits etc.
Avoid doing that if you notice anomalous conditions such as breakages, deformations,
fractures, leakages of battery liquid, blind display etc.
Do not apply a voltage exceeding 30V between any couple of inputs or between
each input and the ground reference to avoid risks of electrical shocks and/or damage
to the instrument
The following symbols are used in user manual and on the meter:
CAUTION - refer to the instruction manual - an improper use may damage the
instrument or its components
Danger high voltage: risk of electric shocks
Double insulated meter
Ground reference
1.1. PRELIMINARY
This instrument has been designed for use in environments of pollution degree 2
It can be used for DC VOLTAGE and DC CURRENT measurements up to 10V and
24mA respectively
When using the instrument always respect the usual safety regulations aimed at
protecting you against the dangerous electric currents and protecting the instrument
against incorrect operations
Only the leads supplied with the instrument guarantee compliance with the safety
standards in force. They must be in good conditions and, if necessary, replaced with
identical ones
Do not test or connect to any circuit exceeding the specified overload protection
Do not effect measurements under environmental conditions exceeding the limits
indicated in § 6.2.1
Make sure that batteries are properly installed.
Before connecting the test leads to the installation check the corrected mode function
to avoid any damage to the instrument
EN - 2
HT8000
1.2. DURING USE
Read the recommendations which follow and the instructions in this manual:
CAUTION
An improper use may damage the instrument and/or its components or
injure the operator.
Before the selection of a function, first disconnect the test leads from the circuit under
test
When the instrument is connected to measuring circuits never touch any unused
terminal
Do not apply a voltage exceeding 30V between any couple of inputs or between
each input and the ground reference to avoid risks of electrical shocks and/or damage
to the instrument
1.3. AFTER USE
After using the instrument turn it off.
If you expect not to use the instrument for a long period remove the battery to avoid
leakages of battery liquids which may damage its inner components.
EN - 3
HT8000
2. GENERAL DESCRIPTION
This instrument, process calibrator HT8000, performs the following measurements:
Generation of output voltage signal with amplitude up to 10VDC
Voltage measurement up to 10VDC
Generation of output current signal with amplitude up to 24mADC
Current measurement up to 24mAVDC
Current measurement in percentage format (0-24mA)
Loop current measurement of external transducers
Simulating of a external transducer
Function keys are available on the front side of the meter (see § 4.2) for the selection of
the possible operations. The selected quantity is displayed with indication of measuring
unit and active functions.
3. PREPARATION FOR USE
3.1. INITIAL
This instrument was checked both mechanically and electrically prior to shipment. All
possible cares and precautions were taken to let you receive the instrument in perfect
conditions.
Notwithstanding we suggest you to check it rapidly (eventual damages may have occurred
during transport – if so please contact the local distributor from whom you bought the item).
Make sure that all standard accessories mentioned in § 6.3 are included.
Should you have to return back the instrument for any reason please follow the
instructions mentioned in § 7.
3.2. SUPPLY VOLTAGE
The instrument is powered by batteries mod. 9V NEDA1604, 006P, IEC6F22 included in
the packaging. When batteries are low the symbol "
batteries follow the instructions indicated in § 5.2.
3.3. CALIBRATION
The instrument complies with the technical specifications contained in this manual and
such compliance is guaranteed for 12 months.
3.4. STORAGE
After a period of storage in extreme environmental conditions exceeding the limits
mentioned in § 6.2.1 let the instrument resume normal operating conditions before using it.
" is displayed. To replace/insert
EN - 4
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