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VC01
User manual
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REED Instruments VC01 User manual

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Model
Temperature Calibrator
VC01
Instruction
Manual
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Table of Contents
Safety ............................................................................................3
Specications .............................................................................4-5
Instrument Description ...............................................................6-7
Operating Instructions ..............................................................8-15
ON/OFF ...................................................................................... 8
Automatic Power Off ...................................................................8
Outputs .................................................................................8-12
Calibration ...........................................................................13-15
Battery Replacement ...................................................................16
For service (repairs or calibration) on this or any other REED product or information on other REED products, contact REED Instruments at info@reedinstruments.com
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2
Safety Information
To ensure the safety operation, the following signs are used only as specied in this instruction manual.
WARNING
correct instruction. Therefore causing potential hazards to the user or instrument. Also indicates how to avoid such hazards.
! CAUTION
correct instruction. Therefore causing potential hazards to the instrument. Also indicates how to avoid incorrect operation.
NOTE
the correct operation of the simulator and its characteristics.
To prevent the user and the instrument from electric shock and other hazards, it is necessary to follow the following regulations:
Warning -
• Do not operate the instrument where ammable gas or explosive gas or vapor are exposed. This is extremely dangerous
• Never apply more than 30V between any two terminals, or between any terminal and ground
Caution -
• The split case (top and bottom) is not to be removed, unless by qualied technicians
• To clean the instrument, periodically wipe the case with a damp cloth and mild detergent, do not use any corrosive solvents
Note -
• For optimal accuracy, allow the instrument to warm up 5 minutes before operating
•
If the automatic reference-junction temperature compensation of the instrument deviates from its designed accuracy, contact a qualied REED technician
Indicates that the current operation does not comply with
Indicates that if the current operation does not comply with
Serves as a sign to remind the user that they must understand
WARNING
! CAUTION
NOTE
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Specifications - Output Functions
Applicable range from 18 to 28°C, within one year after calibration
Output Range Output Range Resolution Accuracy Note
100mV
DCV
10000 mV
OHM 400Ω 0.0 to 400.0Ω 0.1Ω
TC
RTD
R -40 to 1760°C 1°C
S -20 to 1760°C 1°C
B 400 to 1800°C 1°C
E -200.0 to 000.0°C 0.1°C
K -200.0 to 370.0°C 0.1°C J -200.0 to 200.0°C 0.1°C T -200.0 to 400.0°C 0.1°C
N -200.0 to 1300.0°C 0.1°C
Pt100 -200 to 850.0°C 0.1°C
Cµ50 -50.0 to 150°C 0.1°C
-10.00mV to
110.00mV
-100.00mV to
1100.00mV
0.01mV
0.1mV
Note 1: Without accessory lead resistance Note 2: Range of exciting current: 0.5mA to 2mA; max. output voltage: ≤2V
• The accuracies indicated do not include the error of internal temperature
compensation caused by a sensor. The range of the internal temperature compensation sensor is from -10 to 50°C with its compensating error up to 0.5°C
• Temperature coefcient: ±0.005% of range per °C for the temperature ranges from
0 to 18°C and from 28 to 50°C
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0.05% of set value 30µV
0.05% of set
value 0.3mV
±0.05% of set
value ±0.2Ω
±0.05% of set
value ±3°C
(≤100°C)
±0.05% of set
value ±2°C
(>100°C)
±0.05% of set
value ±3°C
(400°C to
600°C) ±0.05%
of set value
±2°C (>600°C)
±0.05% of set
value ±2°C
(≤-100°C)
±0.05% of set
value ±1°C
(>-100°C)
±0.05% of set
value ±0.6°C
com
Max. output
current
±2mA
1mA excit.
current
By using
ITS-90
temperature
scale
By using
Pt100-385
Notes 1 & 2
4
General Specifications
Operating temperature: 0°C to 50°C Operating relative humidity: ≤80% RH Storage temperature: ≤-10°C to 55°C Storage humidity: ≤90% RH Max. permitted voltage: 30V (between any two terminals or between any terminal and ground) Power supply: Single 9V battery (ANSI/NEDA 1604A or IEC6LR619V alkaline) Battery life: Approximately 12 hours Dimensions: 200 × 100 × 40mm (with holster) Weight: 550g (with holster) Includes: Set of CF-36 industrial test lead (with alligator clips) and Instruction manual Safety: Certied compliant to IEC1010 provisions (Safety Standard issued by International Electro-technical Commission)
For service on this or any other REED product or information on other REED products, contact REED Instruments at info@reedinstruments.com
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5
Instrument Description
1 - LCD display area 2 - Power ON/OFF button 3 - °C/°F Interchange button 4 - RJ-ON button (TC ref-junc comp) 5 - Output Zero Reset button 6 - Function Selection button 7 - Range Selection key
8 - Output Digit Selection button 9 - Output Value Setting button
10 - Output terminal
1
2
3
4
5
6
7
8
9
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Display Description
Indicates that the instrument is in an output state Indicates that the instrument is in a calibration state
Indicates that the instrument is in a calibration state, denoting that the zero point or the full scale point is now in calibration
Indicates that the instrument is performing its reference­junction compensation (Refer to subsection 5.2)
Indicates that the battery power is low and needs to be replaced (Refer to subsection 3.1)
Indicates that the output digits need to be set
Indicates the current output value (unit of measure)
Indicates that the output signal is on
Indicates the type of thermocouple
Indicates the respective type of a RTD
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Operating Instructions
Power ON/OFF
Power-key operation Press the Power ON/OFF button (#2 on page 6) to turn the instrument on.
Press this button again, holding for one second to turn the instrument off. When the instrument is on, it will begin an internal self-diagnosis at which time the full screen will be displayed (#1 on page 6). Once complete, the instrument is ready to be used.
Automatic power-off
As a default the instrument will be set to automatically turn itself off after 10 minutes with button operation. To turn off this feature:
1) Turn the instrument off
2) Press the Power ON/OFF button (to display the full screen)
3) Press the RANG button (#7 on page 6) when the instrument is in the maintenance state. AP-XX will display
4) Press the button (#9 on page 6) when AP-ON is displayed. AP-OF will now be displayed, indicating that the automatic power-off is not on
5) Press the Power ON/OFF button to exit the maintenance state and turn the instrument off
Outputs
The output terminal of the instrument can produce DC voltages set by the user or simulating resistance.
! CAUTION
operation. If any improper voltage is applied to the output terminal, it will cause damage to the internal circuit.
Do not apply any voltage to the output terminal during the
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continued ...
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Output Operation Procedure
Function Operation
DCV 1 V 1 V 0.0000 V -0.1000 to 1.1000 V
OMH 400 Ω 000.0Ω 000.0 to 400.0Ω
TC R R 0000°C -40 to 1760°C
RTD Pt100 Pt100 000.0 °C -200 to 850°C
Range
Operation
100mV 000.00 mV -10.00 to 110.00 mV
S 0000°C -20 to 1760°C
K 0000.0°C -200 to 1370°C
E 0000.0°C -200 to 1000°C
J 0000.0°C -200 to 1200°C
T 0000.0°C -200 to 400°C
B 400 °C 400 to 1800°C
N 0000.0°C -200 to 1300°C
Cµ50 000.0 °C -50 to 150°C
Display Set Range
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DC Voltage Output
1) Insert one end of the test lead into the output (TC/mV) jack of the instrument and connect the other end to the input of the instrument, as shown in the diagram to the right
2) Press the FUN (Function) button to select the V function when the unit ‘V’ appears in the display
+ -
M
3) Press the RANG (Range) Button to select the range of 1.0000V or
100.00mV when the display indicates the unit ‘V’ or ‘mV’
4) Press the
button to select the set digits for output
5) Press the button to change the numerical value of the set digits. Hold the button for one second and the value will keep varying
6) Press the ZERO button and the output will be set to
00.00mV or 0.0000V
Simulating output from thermocouple (TC)
1) Insert one end of the test lead into the output (TC/mV) jack of the instrument and connect the other end to the input of the instrument. As shown in the above diagram
2) Press the Fun (Function) button to select the function of a thermocouple and the display will indicate the unit °C or the type of R
3) Press the RANG (Range) button to select an appropriate type
4) Press the
5) Press the Hold the button for one second and the value will keep varying
6) Automatic compensation for reference-junction temperature
button to select the set digits for output
button to change the numerical value of the set digits.
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During the direct calibration of an instrument with reference-junction temperature compensation, it is common to press the RJ-ON button so that the instrument can start the function of automatic reference-junction compensation. Thus providing the required thermo-electromotive force for output followed by displaying the symbol RJ-ON where:
output emf = emf corresponding to the set temperature – emf corresponding to the room temperature
• It takes two seconds for the instrument to start its internal reference­junction temperature. After this, each automatic compensation takes place at 10 second intervals
• If there is a change in the operating ambient temperature, do not start the operation until the built-in compensating sensor has become stable (ca. 10 minutes)
• If there is no need for the Simulator to perform the function of auto­matic reference-junction compensation, press the RJ-ON button and the symbol RJ-ON will no longer appear in the display
7) Press the ZERO button and the output will be directly set to 0000°C (R or S type), 400°C (B type) or 0000.0°C (other type)
8) Press the °C/°F button to select the unit ‘°C’or ‘°F’
Simulating output from resistance or RTD
NOTE
Resistance-simulation: The instrument produces the simulation resistance up to 400Ω at its output terminal (RTD /Ω). The method of simulating resistance output is to send out an appropriate voltage ‘VX’ according to the exciting current ‘IX’ produced by the calibrated instrument. Because R (set resistance ) = VX (output voltage) /IX( exciting current), the calibrated device must provide an exciting current to the simulator. The exciting current should range from 0.5mA to 2mA.
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NOTE
Resistance-simulation: A 4-wire system is designed for the resistance output during the calibration. If you adopt a two-wire system, you should take into consideration the error (ca.0.1Ω) arising from the lead resistance of the test leads. If the capacitance between the resistance output terminal of the simulator and the tested instrument is more than
0.1µf, the simulator will produce improper resistance.
1) Insert one end of the test lead into the output (RTD/Ω) jack of the instrument and connect the other end to the input of the instrument as shown in the diagram to the right. The dedicated test leads supplied with the simulator can be made into a 3-wire or 4-wire system for testing output according to user’s requirement
2) The display of the symbol ‘OUTPUT’
V
4W3W
lx
denotes the instrument is in an output state
3) Press the FUN (Function) button to select the function of resistance or RTD when the unit ‘Ω’ or ‘°C’ and the type of the RTD ‘Pt100’ appears in the display
4) During the use of the RTD function, press the RANG (Range) button to select a corresponding type
5) Press the
button to select the set digits for output
6) Press the button to change the numerical value of the set digits. Hold the button for one second and the value will keep varying
7) Press the Zero button and the output will be directly set to 000.0°C
8) Press the °C/°F button to select the unit °C or °F
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Calibration
NOTE
To ensure accuracy of the instrument, it is recommended to calibrate your instrument once a year. It is recommended that the following standards be used to perform the calibration.
! CAUTION
During the operation, avoid any short circuit and never apply more than the maximum permitted voltage to the output of the simulator and the co-working standard device, incorrect operation may cause damage to the internal circuits.
Selecting Standard Equipment
Calibration
DCV 100mV digital
OHM 400Ω digital
Ambient Condition for Calibration
Ambient temp.: 23°C±1°C Relative humidity: 45 to 75% RH Warming up: The standard equipment must be warmed up to the given time. Do not connect the instrument to the power supply until it has been exposed to the calibrating ambient condition for 24 hours. Then set the instrument to a state of non-automatic shutdown followed by warming it up for 30 minutes.
NOTE
needs replacing.
Item
Stand. Equip.
Output Range Accuracy Recommend
max.110mV ±(10ppm+1µV) 1281 (FLUKE)
meter
5520 (FLUKE)
or equivalent
1V max.1.1V ±(10ppm+5µV)
meter
max. 2V
stand. equip.
±(10ppm+5µV)
±(80ppm+0.03µA)
±1mA excit.
Power supply for calibration: During the calibration, the battery
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Operating Output Calibration
Operate output calibration in the order of items and calibration points:
Item # Output Range Calibration Point
0
1 DCV/1V
2 DCV/100mV
3 OHM/400Ω
1V Range Calibration
1) The calibration wiring is shown in the diagram to the right
2) Press the FUN & RANG buttons rst, and then press the POWER to enter the simulator in a state of 1V output calibration when the symbols ‘OUTPUT’, ‘CAL 0’, ‘ON’ and the unit ‘V’ appear in the display
3) Set the digital meter to an appropriate range
4) With the output stabilized, operate the
and buttons to set
the indication of the simulator with the reading of the digital meter
5) Press the ZERO button and the display will ash, denoting that the calibrated point has been stored
6) Press the RANG button to display the symbol ‘CAL FS’. With the output stabilized, repeat steps 4 & 5
7) Press the RANG button to display the symbol ‘CAL 0 FS’. With the output stabilized, repeat steps 4 & 5
NOTE
Calibration Storage: Press the ZERO button to store the calibrated point when the display does not ash, denoting that the calibration storage is invalid.
FS
0 FS
0
FS
0
FS
0
-FS
digital meter (1281)
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100mV Range Calibration
1) The calibration wiring is shown in the diagram shown on Page 14
2) Press the FUN button to enter the simulator in a state of 100mV output calibration when the display indicates the symbols ‘OUTPUT’, ‘CAL 0’, ‘ON’ and the unit ‘mV’
3)
Repeat the operation of steps 3 to 6 in 1V Range Calibration on Page 14
Resistance Calibration
digital meter (1281)
1) The calibration wiring is shown in the diagram to the right
2) Press the FUN button to enter the simulator in a state of resistance output calibration when the display indicates the symbols ‘OUTPUT’, ‘CAL 0’, ‘ON’ and the unit ‘Ω’
3) Set the digital meter and standard source to an appropriate range, and then set the standard source to +1mA output
4) With the output stabilized, repeat steps 4 & 5
in 1V Range Calibration
on Page 14
5) Press the RANG button to display the symbol ‘CAL FS’. With the output stabilized, repeat steps 4 & 5
in 1V Range Calibration on Page 14
6) Change the output of the standard source to -1mA output
7)
Press the RANG button to display the symbols ‘CAL 0’& ‘-’.With the output stabilized, repeat steps 4 & 5 in 1V Range Calibration on Page 14
8)
Press the RANG button to display the symbols ‘CAL FS’& ‘-’.With the output stabilized, repeat steps 4 & 5 in 1V Range Calibration on Page 14
NOTE
Exciting current: The ow direction of the exciting current must be in line with the calibration point, otherwise the display fails to ash, denoting that the calibration storage is invalid.
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Replacing the Battery
WARNING
Remove the test leads and turn the instrument off before replacing the battery.
When the low battery the battery power is low and the battery needs to be replace. Follow these steps:
1) Remove the test leads and turn the instrument off
2) Remove the holster from the instrument. Open the battery cover at the back of the instrument by unlocking it in the direction indicated
3) Replace the old battery with a new one. Put the battery cover back and lock it in the direction indicated
Notes _________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________
symbol appears in the display, indicating
________________________________________________
For service on this or any other REED product or information on other REED products, contact REED Instruments at info@reedinstruments.com
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16
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