Global Specialties PRO-1000 User manual

PRO-1000
Revision: 11/2010
4 ½ Digit Bench Type Digital Multimeter
Instruction Manual

2
99 Washington Street
Melrose, MA 02176
Phone [phone]
Toll Free 1-800-517-8431

3
CONTENTS
1. PRODUCT DESCRIPTION
1-1. Introduction ---------------------------------------------------------
( 4 )
1-2. Technical Specifications ----------------------------------------
( 7 )
1-3. Equipment Ratings -----------------------------------------------
( 9 )
1-4. Supplied Accessories --------------------------------------------
( 9 )
1-5. Safety ---------------------------------------------------------------
(10)
2. INSTALLATION
2-1. Initial Inspection ---------------------------------------------------
(11)
2-2. Connecting AC Power -------------------------------------------
(11)
2-3. Cooling and Ventilation -----------------------------------------
(11)
2-4. Position --------------------------------------------------------------
(11)
2-5. Warm-Up -------------------------------------------------------
(11)
3. OPERATION
3-1 Voltage Measurement --------------------------------------------
(12)
3-2 Current Measurement --------------------------------------------
(12)
3-3 Resistance Measurement ---------------------------------------
(13)
3-4 Diode Measurement ----------------------------------------------
(13)
3-5 Continuity Test -----------------------------------------------------
(14)
3-6 Frequency Measurement ---------------------------------------
(14)
4. MAINTENANCE
4-1. Fuse Replacement -----------------------------------------------
(15)
4-2. Adjustment and Calibration ------------------------------------
(15)
4-3. Cleaning and Decontamination -------------------------------
(15)

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1. PRODUCT DESCRIPTION
1-1. Introduction
Thank you for purchasing the Model PRO-1000. Please read this operation manual carefully to ensure
its proper use.
Note
1. To fully maintain the meter’s precision and reliability, it must be used within its intended operating
environment. (Temperature 10 C~35 C, Humidity 45%~85%)
2. Upon power-up, please allow the instrument to pre-heat for 30 minutes before use.
3. The PRO-1000 requires a triple line power cord to ensure safe operation.
4. Specifications may change without notice.
5. If you have further questions concerning use of the PRO-1000, please contact customer service at
800-572-1028. For up-to-date specifications please visit www.globalspecialties.com.
The PRO-1000 is a portable, bench type digital multimeter with a 4 ½ digit LED display. The PRO-
1000 can measure diodes, frequency, current, voltage, resistance, as well as test continuity.
Features
Bench type True RMS Digital Multimeter with 4 1/2 digit (LED) display.
Basic DC Voltage accuracy of 0.05 %
Overload protection on all ranges
AC/DC Voltage measurement up to 1000V DC and 750V AC
AC/DC Current measurement up to 10A
Resistance measurement up to 20MΩ
Frequency Measurement up to 200kHz
Audible continuity test
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com

5
FIG.1 FRONT PANEL
 Input Terminal
ⓑ COM: Common Terminal
ⓒ V/Ω/Hz: VOLT, OHM, CONTINUITY, FREQUENCY & DIODE TEST Input Terminal
ⓓ mA: Milliamp Input Terminal
ⓔ A: Amps Input Terminal
 Function Selection
① I/O
Power ON/OFF
⑤ AC A
AC Current
② DCV
DC Voltage
⑥ Ω
Resistance
③ ACV
AC Voltage
⑦ DIODE
Diode & Continuity
④ DCA
DC Current
⑧ FRQ
Frequency
 Range Selection
⑨2
2V, 2mA ,2kΩ
⑬ 20M
20 MΩ
⑩20
20V, 20mA , 20kΩ, 20kHz
⑭ 20A
10A
⑪200
200V, 200mA, 200kΩ, 200kHz
ⓐ HOLD
Data Hold
⑫2000
DC 1000V/AC750V, 2000mA, 2000kΩ
4

12 3
 
  





 
9
5 7
6 8 1110 12 1413 a

    

    
  
   

   
 

 
 
   

 
  
 
 

 


 



 
  



b c ed
9
12 3 6
54 8 7a
13
11
10 12 14
   
  
    


  
 

   
    
    

  


   


 


  

 
  
   

 
    
   
      




bdc e

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 Input Terminal Limits
Switch
Function
Input Terminals
Red Black
Min.
Display
Reading
Max. Display
Reading
Maximum
Input
DC V
V/ /Hz COM
0.0001V
1000.0V
1000VDC
AC V
V/ /Hz COM
0.0001V
750.0V
750VAC
OHM
V/ /Hz COM
0.0001k
19.999M
600V(1Min)
Diode/Cont.
V/ /Hz COM
0.1
1999.9
600V(1Min)
DC mA
mA COM
0.0001mA
1999.9mA
2A
AC mA
mA COM
0.0001mA
1999.9mA
2A
DC A
A COM
0.001 A
10.000A
10.00A
AC A
A COM
0.001 A
10.000A
10.00A
Frequency
V/ /Hz COM
0.001KHz
199.99kHz
600V(1 Min)
FIG.2 REAR PANEL
AC INPUT : AC power input connector
VOLTAGE SELECTOR : Selects AC Power (115V or 230V)
FUSE HOLDER : Replace fuse by unscrewing
GROUND TERMINAL
         
    
M a d e i n K o r e a
P O W E R M A X
       
        
         
     
2 3 0 V ~
1 1 5 V ~
V O LT A G E
S /N :
0 . 2 A F
0 . 5 A F
F U S E
    
     
       

10W
10W
    
              
     
  
 
   
    
  



  
   

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1-2 Technical Specifications
*Important Note: All accuracies apply to 5% to 95% full scale of each range.
DC VOLTS
Range
Resolution
Accuracy
Impedance
2V
20V
200V
100uV
1mV
10mV
±(0.05% + 10d)
10M
1000V
100mV
±(0.1% + 5d)
AC VOLTS
Range
Resolution
Accuracy
Impedance
50-60Hz
60- 400Hz
2V
20V
200V
750V
100µV
1mV
10mV
100mV
±(0.75% + 10d)
±(1.5% + 10d)
10M
±(2.5% + 10d)
DC CURRENT
Range
Resolution
Accuracy
Overload Protection
2mA
20mA
200mA
100nA
1µA
10µA
±(1.0% + 5d)
2A/250V
2A
100µA
±(1.0% + 10d)
*10A
1mA
±(1.0 % + 10d)
10A/250V
*10A range specified for 30 seconds maximum for each 15 minute interval.
AC CURRENT
Range
Resolution
Accuracy
Overload
Protection
50-60Hz
60- 400Hz
2mA
20mA
200mA
100nA
1µA
10µA
±(0.75% + 10d)
±(2.0% + 10d)
2A/250V
2A
*10A
100µA
1mA
±(1.0% + 10d)
10A/250V
* 10A range specified for 30 seconds maximum for each 15 minute interval.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com

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RESISTANCE
Range
Resolution
Accuracy
Overload Protection
2kΩ
20kΩ
200kΩ
2MΩ
0.1Ω
1Ω
10Ω
100Ω
±(0.2% + 5d)
600V DC or Peak
20MΩ
1kΩ
±(1% + 10d)
FREQUENCY
Range
Resolution
Accuracy
Overload Protection
20kHz
1 Hz
±(1.5% + 5d)
600V DC or Peak
200kHz
10 Hz
±(2.0% + 5d)
Frequencies under 500Hz requires a minimum amplitude of at least 4Vpp. Other
sensitivities are not specified.
Errors of less than 5 digits are added in the total measurement.
AUDIBLE CONTINUITY
Test Voltage
Threshold
Overload Protection
3V
Less Than 200Ω
600V DC or Peak
DIODE TEST
Test Voltage
Max. Test Current
Overload Protection
2V
Approx. 1.0mA
600V DC or Peak

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1-3. Equipment Ratings
 Plug and Socket: 3 wire AC power plug and 3 wire outlet
 Power & Fuse Ratings
Input Voltage
Fuse
Power Max.
103 126V AC (50/60Hz)
F 0.5A / 250V
10W
206 252V AC (50/60Hz)
F 0.2A / 250V
 Operating Environment:
TEMPERATURE: 0 °C to + 40 °C (Accuracy Specified at 23 °C ± 5 °C)
HUMIDITY: Up to 85%RH to 40 C without temperature extremes which may cause
condensation within the instrument.
 Storage Environment:
TEMPERATURE: -20°C to +70°C
HUMIDITY: <85% RH
 Temperature Coefficient: 1.0 x (Specified Accuracy) per °C for temp. < 18°C or > 28°C
 Insulation Category: II
 Pollution Degree: 2
 Protection to IEC 529 : Ordinary
 Dimensions: 9.5” x 3.5” x 11” (240 x 90 x 280 mm)
 Weight: 4.4 lbs (approx. 2.0kg)
1-4. Supplied Accessories
 User’s Manual ----------------------------------------------------- 1
 Test Leads---------------------------------------------------------- 1
 Power cord---------------------------------------------------------- 1
 Spare Fuse--------------------------------------------------------- 1

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1-5. Safety
SAFETY RULES
Read these operating instructions thoroughly and completely before operating the PRO-1000.
Pay particular attention to WARNINGS and CAUTIONS described in this manual that may pose
hazards to the user, and/or damage to the instrument.
Always inspect the instrument’s test probes and accessories for any sign of damage or
abnormality before each use.
Never ground yourself and keep your body isolated from ground.
Never touch exposed wiring, connections or any live circuit conductors.
Disconnect the live test probe before disconnecting the common test probe.
Use caution when working above 60V DC or 25V AC RMS as such voltages pose a shock
hazard.
SAFETY SYMBOLS
Note: Specifications and information are subject to change without notice.
DANGEROUS VOLTAGE
AC-ALTERNATING CURRENT
DC-DIRECT CURRENT
SEE EXPLANATION IN MANUAL
GROUND
FUSE
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com

11
2. INSTALLATION
2-1. Initial Inspection
The PRO-1000 was carefully inspected both mechanically and electrically before shipment and should
be free of any physical damage. Please inspect the instrument for any physical damage that may
have occurred in transit.
2-2. Connecting AC Power
This instrument may be used with either 115V AC, or 230V AC (50-60 Hz) input voltages. Please
ensure that the power socket includes a protective earth contact (PE-contact).
CAUTION
AC POWER OF THIS INSTRUMENT IS FACTORY-SET TO 115V. BEFORE POWER-UP, CHECK
AND MAKE SURE THE VOLTAGE OF THE POWER SOURCE IS SAME THE INSTRUMENT’S
FACTORY PRESET.
FOR 230V AC INPUT VOLTAGE REQUIREMENTS, ADJUST THE VOLTAGE SELECTOR SWITCH
ON THE REAR OF THE METER.
2-3. Cooling and Ventilation
No special cooling or ventilation is required for proper operation however the instrument should be
operated within its intended ambient temperature specifications for optimum use.
2-4. Position
The PRO-1000 is a bench-type instrument with rubber feet and handle-type tilt stand. The viewing
angle can be adjusted by rotating angle of carrying handle.
2-5. Warm-Up
Allow 30 minutes for the unit to warm up in order to provide the most accurate and stable readings.

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3. OPERATION
3-1 Voltage Measurement
Voltage is the difference of electrical energy (potential) between two points. Measuring voltage allows
you to verify the following.
 Presence of voltage. The presence of voltage indicates that the circuit is delivering voltage to the
component you are testing.
 The voltage level. The voltage level indicates whether the proper voltage is arriving at each
component.
 The voltage drop. The voltage drop indicates how much voltage is being consumed by each
component.
WARNING---HIGH VOLTAGE
TO AVOID POSSIBLE ELECTRIC SHOCK AND/OR EQUIPMENT DAMAGE, DO NOT ATTEMPT
TO TAKE ANY VOLTAGE MEASUREMENTS IF THE VOLTAGE IS ABOVE 1000V DC OR 750V
AC. THE "COM" TERMINAL POTENTIAL SHOULD NOT EXCEED 500V WITH RELATION TO
GROUND.
(1) Plug the red and the black test leads into the V and the COM input terminals respectively.
(2) Set the range switch to the desired voltage range. For unknown voltages, always start from
highest range and move down to a lower range to the select scale for the best readings.
(3) Connect the probe tips in parallel with the voltage source to be measured.
(4) Read the voltage value on the display.
3-2 Current Measurement
Current is defined as amount of electrons flowing through a conductor. Amps are the value assigned
to the measurement of these electrons.
CAUTION
DO NOT ATTEMPT TO TAKE A CURRENT MEASUREMENT MORE THAN THE SPECIFIED
METER SETTING. ALWAYS START WITH THE HIGHEST RANGE CURRENTS SETTING AND
MOVE DOWN A RANGE AT A TIME FOR THE BEST READINGS. THE “mA INPUT” TERMINAL IS
PROTECTED BY A 2000mA/250V “F” TYPE FUSE AND THE “A INPUT” TERMINAL IS FUSED
WITH A 10A/250V “T” TYPE FUSE.
WARNING
MAKE SURE NO POWER IS PRESENT BEFORE DISCONNECTING THE CIRCUIT. EVEN SMALL
AMOUNTS OF CURRENT CAN BE DANGEROUS. DO NOT ATTEMPT A CURRENT
MEASUREMENT WHERE VOLTAGE IS ABOVE 600 V.
(1) Plug the red test leads into the “mA input” for inputs less than 2000 mA or into the “A input”
terminal for inputs between 2000mA and 10A.
(2) Plug the black test leads into the COM input terminal.

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(3) Set the range switch to the desired current range. For unknown current measurements, always
start from highest range and move down to lower range to select scale for the best readings.
(4) Connect the probe tips in series with the current source to be measured.
(5) Read current value on the display.
Fuse Replacement:
Disconnect and remove all connections from any live power source.
Open the top case.
Locate the defective fuse on-board and remove it.
Install a new fuse of the SAME SIZE AND RATING.
Close the top case.
** 10A AC/DC Measurement - “Maximum 30sec for each 15 minute interval”
3-3 Resistance Measurement
Resistance is the hindrance of current flow through a conductor. Ohms are the unit of measure for
this resistance.
The resistance displayed on the meter is the total resistance through all possible paths between
the red and black probes.
Resistance must always be measured with meter in series with the circuit.
Resistance in each test lead is about 0.1 - 0.2 ohm
Be sure that the contact between the probes and the circuit is clean. Contact resistance coming
from dirt, oil, paint, etc. can seriously affect measurement accuracy.
CAUTION
IF AN EXTERNAL VOLTAGE IS PRESENT ACROSS A COMPONENT, IT WILL CAUSE
ERRONEOUS RESISTANCE READINGS. THEREFOR ALL RESISTANCE MEASUREMENTS
SHOULD BE TAKEN ON DE-ENERGIZED CIRCUITS ONLY. POWER TO THE CIRCUIT UNDER
TEST MUST BE OFF AND ALL CAPACITORS SHOULD BE DISCHARGED
(1) Plug the red and black test leads into the V input and the COM input terminals respectively.
(2) Set the range switch to the desired resistance range.
(3) Connect the probe tips in series with the resistance to be measured.
(4) Read the resistance value on the display.
3-4 Diode Measurement
Diodes allows current to flow in one direction only. To test a single diode, turn the power off and
remove the diode from circuit.
(1) Connect the red probe to the plus (+) side of diode and the black probe to the minus (-) side.
(2) If diode is good, the voltage drop will be displayed, for example 300.0 ~ 800.0
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com

14
(3) Reverse the probes and measure the voltage across the diode again.
 If diode is good, the display will read “000.0” (flickering).
 If diode is shorted, the display will show 000.0 with a beeping sound when measured in both
directions.
 If the display shows “000.0” and is flickering in both directions, the diode is open.
3-5 Continuity test
Continuity testing verifies if a circuit is closed or open. Shorts are indicated by a continuous beeping
tone.
(1) Set the range switch to the continuity function & diode range.
(2) Connect the probes to the circuit and listen for the beeping tone. The continuity tone confirms
that the circuit is closed.
3-6 Frequency Measurement
(1) Plug the red and black test leads into the V input and the COM input terminals respectively.
(2) Set the range switch to the desired frequency range. For unknown frequencies, always start from
highest range and move down to lower range to select the scale for best readings.
(3) Connect the probe tips in parallel with the circuit to be measured.
(4) Read the frequency value on the display.
NOTE:
Errors of less than 5 digits are added in measurement value. To compensate for this error, check the
digit error by shorting the test leads (+,-) before measuring unknown frequency and deduct this value
from the final measurement.

15
4. MAINTENANCE
CAUTION
PLEASE OBSERVE PROPER SAFETY PRECAUTIONS WHEN ATTEMPTING TO MAINTAIN AND
SERVICE THIS INSTRUMENT.
WARNING
VOLTAGES WITHIN THIS INSTRUMENT ARE SUFFICIENT ENOUGH TO BE LIFE-
THREATENING, AND THEREFORE INSTRUMENT COVERS MUST ONLY BE REMOVED BY
AUTHORIZED AND QUALIFIED PERSONNEL ONLY.
4-1. Fuse Replacement
Disconnect and remove all connections from any live power source.
Unscrew the fuse holder with a screw driver.
Locate the defective fuse and gently remove it.
Install a new fuse of the SAME SIZE AND RATING.
Replace fuse holder.
CAUTION
MAKE SURE THAT THE REPLACEMENT FUSE IS OF THE EXACT SPECIFIED VALUE.
4-2. Adjustment and Calibration
The PRO-1000 should be calibrated yearly by authorized personnel only.
4-3. Cleaning and Decontamination
The PRO-1000 should be cleaned with a soft clean cloth to remove any oil, grease or grime. Never
use liquid solvents or detergents. If the instrument gets wet for any reason, dry the instrument using
low-pressure clean air at less than 25 PSI. Use care and caution around the window cover areas
where water or air could enter into the instrument while drying.

16
WARRANTY
Limited One-Year Warranty
Global Specialties, LLC warrants to the original purchaser that this product and its component parts
will be free from defects in workmanship and materials for a period of one year from the date of
purchase.
Global Specialties, LLC will without charge, repair or replace, at its’ option, defective product or
component parts. Returned product must be accompanied by proof of the purchase date in the form a
sales receipt.
Exclusions: This warranty does not apply in the event of misuse or abuse of the product or as a result
of unauthorized alternations or repairs. Warranty is void if the serial number is altered, defaced or
removed.
Global Specialties, LLC shall not be liable for any consequential damages.
99 Washington Street
Melrose, MA 02176
Phone [phone]
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com

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