Greenlee IPM-100 Manuale utente
999 3816.2 © 2000 Greenlee Textron IM 1491 10/00
IPM-100
INDUSTRIAL PROCESS
CONTROL LOOP
CALIBRATOR
CALIBRADOR DE
BUCLE DE CONTROL
DE PROCESO
INDUSTRIAL
CALIBRATEUR DE
BOUCLE DE
REGULATION DE
PROCEDE INDUSTRIEL
INSTRUCTION MANUAL
INSTRUCTION MANUAL
MANUAL DE INSTRUCCIONES
MANUEL D’INSTRUCTIONS
Read and understand all of the instructions and safety
information in this manual before operating or servicing this tool.
Lea y entienda todas las instrucciones y la información sobre
seguridad que aparecen en este manual, antes de manejar estas
herramientas o darles mantenimiento.
Lire attentivement et bien comprendre toutes les instructions et
les informations sur la sécurité de ce manuel avant d‘utiliser ou de
procéder à l‘entretien de cet outil.
2
Description
The Greenlee IPM-100 Industrial Process Control Loop Calibrator is a hand-held testing device
intended to calibrate any standard 4 mA to 20 mA industrial process control loop.
It has the ability to:
• Check, measure, and calibrate all current signal instruments in a 4 mA to 20 mA DC loop.
• Provide a 0.00 mA to 24.0 mA source.
• Simulate a 2-wire transmitter.
• Simultaneously power and measure a 2-wire transmitter.
• Display either current (0 mA to 24 mA) or percent (–25% to 125%).
Safety
Safety is essential in the use and maintenance of Greenlee tools and equipment. This
instruction manual and any markings on the tool provide information for avoiding hazards and
unsafe practices related to the use of this tool. Observe all of the safety information provided.
Purpose
This instruction manual is intended to familiarize all personnel with the safe operation and
maintenance procedures for the Greenlee IPM-100 Industrial Process Control Loop Calibrator.
Keep this manual available to all personnel.
Replacement manuals are available upon request at no charge.
Greenlee and are registered trademarks of Greenlee Textron.
KEEP THIS MANUAL
IPM-100
3
Important Safety Information
Read and understand this material before operating or servicing
this equipment. Failure to understand how to safely operate this
tool can result in an accident causing serious injury or death.
This symbol is used to call your attention to hazards or unsafe practices which could
result in an injury or property damage. The signal word, defined below, indicates the
severity of the hazard. The message after the signal word provides information for
preventing or avoiding the hazard.
SAFETY ALERT SYMBOL
Immediate hazards which, if not avoided, WILL result in severe injury or death.
Hazards which, if not avoided, COULD result in severe injury or death.
Hazards or unsafe practices which, if not avoided, MAY result in injury or property
damage.
4
Important Safety Information
Electric shock and fire hazard:
• Do not expose this unit to rain or moisture.
• Do not use the unit if it is wet or damaged.
• Use test leads or accessories that are appropriate for the application. See the
category and voltage rating of the test lead or accessory.
• Inspect the test leads or accessory before use. They must be clean and dry, and the
insulation must be in good condition.
• Use this unit for the manufacturer’s intended purpose only, as described in this
manual. Any other use can impair the protection provided by the unit.
Failure to observe these warnings can result in severe injury or death.
Electric shock hazard:
Contact with live circuits can result in severe injury or death.
This unit is not intrinsically safe. Do not use this unit in a Hazardous Location. Refer to
Article 500 of the National Electric Code for information on Hazardous Locations. Using
this tool in a Hazardous Location can result in a fire or explosion.
Failure to observe this warning will result in severe injury or death.
IPM-100
5
Important Safety Information
• Do not attempt to repair this unit. It contains no user-serviceable parts.
• Do not expose the unit to extremes in temperature or high humidity.
See Specifications.
Failure to observe these precautions can result in injury and can damage the unit.
Do not change the measurement function while the test leads are connected to a
component or circuit.
Failure to observe this precaution can result in injury and can damage the unit.
Electric shock hazard:
• Do not apply more than the rated voltage between any two input terminals, or
between any input terminal and earth ground.
• Do not contact the test lead tips or any uninsulated portion of the accessory.
Failure to observe these warnings can result in severe injury or death.
• Do not operate with the case open.
• Before opening the case, remove the test leads from the circuit and shut off the unit.
Failure to observe these warnings can result in severe injury or death.
Using this unit near equipment that generates electromagnetic interference can result
in unstable or inaccurate readings.
6
Identification
1. Display LCD
2. SOURCE OFF Use to select an operating function (see Features) or to turn the unit off
READ
3. 100% / 20 mA Press for High Span Output (100% or 20 mA)
4. SET Press for the preset output
5. 0% / 4 mA Press for Low Span Output (0% or 4 mA)
6. MODE Press to select an operating function (see Features)
7. mA / % Press to display either current (mA) or percent (%)
8. Control Knob Turn to adjust the output
9. Red Lead Positive lead
10. Black Lead Negative lead
1
2
3
4
5
10
7
8
6
9
IPM-100
7
Display Icons
11. LO Low Span Output is selected (0% or 4 mA)
12. HI High Span Output is selected (100% or 20 mA)
13. BAT Low battery
14. PWR XMTR Power Transmitter Function is selected
15. 2-WIRE 2-Wire Function is selected
16. -8.8.8.8 Measurement
Over-range (the signal is too high for the range)
Under-range (the signal is too low for the range)
Flashing digits Open loop or reversed polarity
17. % Percent
18. mA Milliamperes
19. READ Read Function
is selected
20. SOURCE Source Function
is selected
11 16
12
13 14 15
17181920
Features
Operating Functions
Output Checkpoints
Switch or Button Use to:
SOURCE READ •Select SOURCE/POWER TRANSMITTER.
POWER 2-WIRE •Select READ/2-WIRE SIMULATOR.
MODE •Toggle between SOURCE and POWER TRANSMITTER.
•Toggle between READ and 2-WIRE SIMULATOR.
mA / % Select a display mode, either current (mA) or percent (%).
Switch or Button Use to:
100% / 20 mA Set the output to 100%, or 20 mA.
SET Set the output to the user-defined set point.
The default setting is 12 mA. To change this, see Settings.
0% / 4 mA Set the output to 0%, or 4 mA.
8
Introduction
The user can change the SET button to any other convenient set point (see Settings). In
addition, the control knob is speed-sensitive; turning it faster produces a faster change in the
output.
The normal industrial process control loop current range, or span, is 4 mA to 20 mA (0% to
100%). Intermediate points are as follows:
Settings
The IPM-100 has two selectable settings: Automatic Power-off and the current/percent
set point of the SET button.
To change Automatic Power-off setting:
1. Press and hold the SET button while turning the unit on.
2. After the firmware revision appears on the display, release the SET button. BAT and
ON indicate that Automatic Power-off is enabled.
3. Press the MODE button to change the Automatic Power-off function (ON or OFF).
4. Press the SET button to store your selection.
To change current/percent set point for SET button:
1. Use the control knob to set the output to the desired value.
2. Press the SET button to store the selected value.
Current 0 mA 4 mA 8 mA 12 mA 16 mA 20 mA 24 mA
Percent –25% 0% 25% 50% 75% 100% 125%
IPM-100
9
Operation
Source
The Source Function relies on the batteries of the
IPM-100, and provides an output from 0.00 mA to
24.0 mA (–25 to 125%).
1. Disconnect one or both of the input wires
from the device to be calibrated.
2. Select SOURCE and press the MODE button
until SOURCE appears on the display.
3. Press the mA / % button to select current or
percent.
4. Connect the red lead to the positive (+) input
of the device; connect the black lead to the
negative (–) input of the device.
5. Adjust the output current by turning the
control knob, or by using the output
checkpoint buttons.
Read
The Read Function measures current from
0.00 mA to 24.0 mA (–25% to 125%).
1. Open the loop at any convenient point.
2. Select READ and press the MODE button until
READ appears on the display.
3. Press the mA / % button to select current or
percent.
4. Connect the red lead to the positive (+) side
of the circuit; connect the black lead to the
negative (–) side of the circuit.
5. Read the display.
mA Receiver Input
Controller
Transmitter
Computer
Logger
I/P
DCS
mA Output Signal
Controller
Transmitter
P/I
DCS
10
2-Wire Simulator
The 2-Wire Simulator Function relies on an external power supply (3 VDC to 45 VDC), and
provides an output from 0.00 mA to 24.0 mA (–25% to 125%).
1. Disconnect the 2-wire transmitter from the loop.
2. Select 2-WIRE SIMULATOR and press the MODE button until 2-WIRE appears on the
display.
3. Press the mA / % button to select current or percent.
4. Connect the red lead to the positive (+) side of the circuit; connect the black lead to the
negative (–) side of the circuit.
5. Adjust the output current by turning the control knob, or by using the output checkpoint
buttons.
Operation (cont’d)
Receiver
(powers external
2-Wire Transmitter)
Power Supply
2 to 45 VDC
To
Sensor
Typical
2-Wire
Transmitter
(disconnected)
Indice
Lingue:
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