Greenlee IPM-300 User manual

999 3817.0 © 2000 Greenlee Textron IM 1492 11/00
IPM-300
INDUSTRIAL
PROCESS METER
MEDIDOR DE
PROCESO
INDUSTRIAL
MULTIMETRE 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-300 Industrial Process Meter is a hand-held testing device intended to
calibrate equipment with the following inputs or outputs: milliamp, DC voltage, thermocouple,
RTD, and frequency. It also measures AC and DC voltage, ohms, and checks continuity.
The IPM-300 has the ability to:
• Source and read 0.00 mA to 24.0 mA and display current in mA or percent of 4-20 mA
span.
• Simulate a 2-wire transmitter.
• Simultaneously power and measure 2-wire transmitters.
• Calibrate DC millivolt and voltage instrumentation.
• Source and read directly in °C and °F for thermocouple types J, K, T, and E.
• Calibrate RTD in °C or °F using a built-in platinum 100 ohm DIN/IEC 751 table.
• Read and source in ohms.
• Generate zero crossing square waves from 1 Hz to 1000 Hz, 0.01 kHz to 10.00 kHz, and
from 1 CPM to 1000 CPM (counts per minute).
• Function as a frequency counter.
• Check line voltage or mains from 0.0 to 250.0 VAC.
• Locate pairs of wire, open connections, and shorts.
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 Greenlee IPM-300 Industrial Process Meter.
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-300
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 (cont’d)
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.
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.

IPM-300
5
Important Safety Information (cont’d)
• 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.
The fuses are an integral part of the overvoltage protection. When fuse replacement is
necessary, see Specifications for the correct type, size, and capacity. Using any other
type of fuse will void the overvoltage protection rating of the unit.
Failure to observe this warning can result in severe injury or death.
Correctly set up the unit before connecting it to any instrument to be calibrated.
Failure to observe this precaution can result in injury and can damage the instrument
being calibrated.
Connect the leads and set the controls so they correspond to the intended calibration or
measurement.
Failure to observe this precaution can result in injury and can damage the instrument
being calibrated.

6
Important Safety Information
• Set the selector and connect the test leads so that they correspond to the intended
measurement. Incorrect settings or connections can result in a blown fuse.
• Using this unit near equipment that generates electromagnetic interference can
result in unstable or inaccurate readings.
• 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 or range 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.

IPM-300
7
Identification
1. Display LCD
2. Toggle Switch Use to set maximum, intermediate, and minimum output values
and to view minimum and maximum input values
3. STORE/RESET Button Use to store values to memory and restore defaults
4. Digital Potentiometer Turn to adjust output
(Pot)
5. Selector Knob Turn to select an operating function
6. SOURCE/READ Button Press to select Source or Read function
7. RANGE/TYPE Button Press to select Range or Type function
8. POWER Button Press to turn on or off
9. Terminals Input and output banana jacks
10. T/C terminals Miniature thermocouple socket
1
2
3
4
5
6
7
8
145
23
!
!
!
!T/C +
–
300V
MAX
INPUT
5V MAX
INPUT 45V MAX INPUT
45V
MAX
INPUT
9
910

8
Display Icons
11. CAL Automatic self calibration in progress
12. SOURCE READ Source or Read function is selected
13. SETUP Reset of defaults selected
14. BAT Low Battery
15. HI High value is selected in Source mode
16. MAX Maximum value is displayed in Read mode
17. –Polarity Indicator
18. MIN Minimum value is displayed in Read mode
19. LOW Low value is selected in Source mode
20. - 8.8.8.8.8 Output or input value (numeric display)
Over range (the signal is too high for the range)
Under range (the signal is too low for the range)
21. CONTINUITY Continuity function selected
22. Continuity indicator
23. POLARITY Reversed polarity detected
24. % Display is in percent of 4 mA to 20 mA
25. 2-WIRE SIM 2-wire simulator function is selected
26. RTD TYPE RTD type (Pt or Cu) is displayed on #41
27. T/C TYPE Thermocouple type (J, T, E, or K) is displayed on #41
28. PWR XMTR Power transmitter function is selected
29. mA Milliamp
30. m Milli (10 -3)
31. V Volts
32. AC AC
33. DC DC

IPM-300
9
34. Ωohms
35. K Kilo (10 3)
36. Hz Hertz
37. CPH Counts per hour
38. CPM Counts per minute
39. °F Fahrenheit
40. °C Celsius
41. Alpha numeric Various displays
display
Note: Unidentified icons are not used on this model.
11 12 13 14
15
16
17
18
19
20
21 22 23 34-3628 25 29-33
37,38
41
24
26,27
39,40
CAL SOURCE READ SETUP BATERROR
°F
°CRTD TYPE
T/C TYPE
%
mA AC
mV DC
KΩCPH
KHz CPM
HI
MAX
MIN
LOW
REL
CONTINUITY POLARITY PWR XMTR
GATE 2-WIRE SIM
Display Icons (cont’d)

10
•Selector Knob Turn to choose mA, VDC, T/C, ohms, RTD, FREQ, or VAC READ.
•SOURCE/READ Button Press to select the function.
• RANGE/TYPE Button Press to select measurement range, scale, temperature element type, or
display format.
Source Ranges
Milliamp: mA, %mA, 2-Wire Sim, %2-Wire Sim, Pwr Xmtr, %Pwr Xmtr
VDC: mV, V
T/C types: J, T, E, and K in °C and °F
Ohms: Resistance in ohms
RTD: 100 Ωplatinum (Pt) or 50 Ωcopper (Cu) RTD in °C and °F
Frequency: kHz, Hz, CPM (counts per minute)
Read Ranges
Milliamp: mA, %mA
VDC: mV, 10V, 200V
T/C: J, T, E, and K in °C and °F
Ohms: Resistance in ohms, continuity
RTD: 100 Ωplatinum (Pt) or 50 Ωcopper (Cu) RTD in °C and °F
Frequency: kHz, Hz, CPM (counts per minute)
VAC: AC Voltage
•POWER Button Press momentarily to turn the unit on or off.
•Toggle Switch Flip to select the desired function.
Source Mode The HI, SET and LO outputs will be the same as previously stored.
Each function recalls its stored outputs.
Read Mode Set to READ to display present reading. Set to MAX or MIN to display
maximum or minimum readings.
•STORE/RESET Button puts the present output value into memory while in the Source mode.
Resets MAX and MIN values in READ mode. Also used to reset stored values to factory
defaults. See the Returning to the Default Settings section.
•Digital Potentiometer (Pot) Turn to set the desired value. Turn slowly to make a gradual
change in the output or turn it faster to make a faster change.
Using the Features

IPM-300
11
Operation
1. Set the selector to the proper setting.
2. Press the SOURCE/READ button to select the function.
3. See Using the IPM-300 as a Source or Using the IPM-300 to Read for specific instruc-
tions.
4. Test the unit on a known functioning circuit or component.
•If the unit does not function as expected on a known functioning circuit, replace the
batteries and/or fuses.
•If the unit still does not function as expected, send the unit to Greenlee for repair. See
the address shown under Warranty.

12
Operation (cont’d)
Returning to the Default Settings
You can automatically return to the default settings, which are shown in the table below.
The thermocouple and RTD ranges may be configured so that they always read °C, °F, or are
selectable °C and °F. The unit defaults to turn off automatically after 30 minutes of inactivity.
This can be disabled by following the procedure below. Return the unit to its defaults by
following the steps below.
1. Press and hold STORE/RESET while turning the unit on.
2. When the display begins to flash, release STORE/RESET. The display flashes for about
5 seconds and then °C and °F appear.
3. To change the temperature units, when °C and °F flash on the display, immediately press
RANGE/TYPE to select °C, °F, or °C and °F. In about 5 seconds, the present setting of the
Auto Power Off function (“on”or “OFF”) and “BAT”appear.
4. Press RANGE/TYPE to change the Auto Power Off function setting. After 5 seconds, the
IPM-300 automatically stores your choices and returns to normal operation.
SOURCE READ Source Defaults
Range Lo Set Hi
mA 4.00 12.00 20.00
mV 1.00 5.00 10.00
V 1.00 5.00 10.00
T/C All points 0 °C (32 °F)
Ohms 100.0 200.0 400.0
RTD All points 0 °C (32 °F)
kHz 1.00 5.00 10.00
Hz 100 500 1000
CPM 100 500 1000

IPM-300
13
Operation (cont’d)
Using the IPM-300
Field and Bench Use
The IPM-300 comes with a carrying case and a built-in tilt stand and hanger. The carrying case
has a belt loop which can be looped around a pipe or rail. The tilt stand is easily raised by
pulling the stand until it locks into place. To reverse the stand for use as a hanger, grasp the
stand near where it attaches to the meter, gently spread the stand outward and lift it out. Turn
the stand over and insert the ends back into the holes.
Autocal
To maintain accuracy, the IPM-300 periodically recalibrates its measuring circuitry against
internal references. While this is occurring, “CAL”appears on the display for less than two
seconds.
Turning the IPM-300 On and Off
To turn the unit on or off, press and release the POWER button. Each time you turn the
IPM-300 on, the LCD displays all segments briefly and then displays the most recently
selected Source or Read setting.
Connections
Correctly set up the outputs before connecting the unit to any instrument to be calibrated.
Failure to observe this precaution can result in injury and can damage the instrument
being calibrated.
A quick connection guide is located on the back of the unit and the boot. For more specific
instructions, follow the steps in the following sections.

14
Operation (cont’d)
Using the IPM-300 as a Source
Select the Source mode by pressing the SOURCE/READ button until “SOURCE”appears on the
display.
Using SOURCE Outputs
Outputs are adjustable with the digital pot. All three positions of the switch allow adjustments
of the value. Stored values (HI or LO) are updated by following the procedure below.
Storing Output Values
Output values can be stored into memory where they remain for later use. Values can be
moved from SET into HI or LO. Returning the meter to its defaults replaces the stored values
with its defaults.
1. Press the SOURCE/READ button until “SOURCE”appears on the display.
2. Flip the toggle switch to HI or LO.
3. To change the output value, turn the digital pot.
4. Press the STORE/RESET button to store the value.
5. To transfer the value in SET to HI or LO, press and hold STORE while moving the switch
to HI or LO.
The display flashes once and the unit beeps once.
6. Release STORE.
7. To use a stored value, flip the toggle switch to HI, SET, or LO.
SOURCE
HI
SET
LO
STORE/RESET

IPM-300
15
Operation (cont’d)
Calibrate Milliamp Inputs
Select the Source mode by pressing the SOURCE/READ button until “SOURCE”appears on the
display.
Display: mA, mA% (percent of 4 mA to 20 mA)
This function provides an output from 0.00 mA to 24.00 mA. The compliance voltage is a
nominal 25 VDC to provide the driving power to the milliamp receivers.
The normal industrial process control loop current range is 4 mA to 20 mA (0% to 100%).
Intermediate points are as follows:
Current 0 mA 4 mA 8 mA 12 mA 16 mA 20 mA 24 mA
Percent –25% 0% 24% 50% 75% 100% 125%
1. Turn the Selector knob to mA.
2. Connect the black and red leads to the meter as shown.
3. Repeatedly press the RANGE/TYPE button until “SOURCE”and “mA”or “SOURCE”and
“% mA”appear on the display.
4. Disconnect one or both input wires from the device to be calibrated.
5. Connect the red lead of the meter to the plus (+) input of the device and the black lead to
the minus (-).
6. With the toggle switch at SET, adjust the output to the desired value.
7. Flip the toggle switch to HI or LO to use the stored values. See the Storing Output Values
section to change the stored values.
14 5
23
!
!
!
!T/C +–
300V
MAX
INPUT
5V MAX
INPUT 45V MAX INPUT
45V
MAX
INPUT
Milliamp
Receiver Input
Controller
Transmitter
Computer
Logger
I/P
DCS

16
Operation (cont’d)
Simulate 2-Wire Transmitters
Select the Source mode by pressing the SOURCE/READ button until “SOURCE”appears on
display.
Display: 2-WIRE SIM, mA, 2-WIRE SIM, % mA (percent of 4 to 20 mA)
This function simulates a 2-wire transmitter output from 1.00 mA to 24.00 mA. Operates in
loops with power supply voltages from 3 VDC to 45 VDC.
1. Turn the Selector knob to mA.
2. Connect the black and red leads to the meter as shown.
3. Repeatedly press the RANGE/TYPE button until “SOURCE”, “2-WIRE SIM”and “mA”or
“SOURCE”, “2-WIRE SIM”and “% mA”appear on the display.
4. Disconnect the existing 2-wire transmitter from the loop.
5. Connect the red lead of the meter to the plus (+) input of the field connection and the black
lead to the minus (-).
6. With the toggle switch at SET, adjust the output to the desired value.
7. Flip the toggle switch to HI or LO to use the stored values. See the Storing Output Values
section to change the stored values.
145
23
!
!
!
!T/C
+
–
300V
MAX
INPUT
5V MAX
INPUT 45V MAX INPUT
45V
MAX
INPUT
Typical
2-Wire
Transmitter
(disconnected)
To
Sensor
+IN REF +OUT
Power Supply
2 to 45 VDC
Receiver
(Powers external
2-Wire Transmitter)

IPM-300
17
Operation (cont’d)
Power and Measure 2-Wire Transmitters
Select the Source mode by pressing the SOURCE/READ button until “SOURCE”appears on the
display.
Display: PWR XMTR mA, PWR XMTR %mA
This function simultaneously supplies power to a 2-wire transmitter while displaying a 4 mA to
20 mA output to the transmitter.
1. Turn the Selector knob to mA.
2. Connect the black and red leads to the meter as shown.
3. Repeatedly press the RANGE/TYPE button until “SOURCE”, “PWR XMTR”and “mA”or
“SOURCE”, “PWR XMTR”and “% mA”appear on the display.
4. Disconnect one or both input wires from the 2-wire transmitter to be calibrated.
5. Connect the red lead of the meter to the plus (+) input of the device and the black lead to
the minus (-).
6. Connect an appropriate sensor or calibrator to the input of the 2-wire transmitter.
The IPM-300 supplies a nominal 24 VDC at 24 mA to the 2-wire transmitter. The current
passed by the transmitter will be accurately displayed. Calibrate the transmitter in the
usual manner.
145
23
!
!
!
!T/C
+
–
300V
MAX
INPUT
5V MAX
INPUT 45V MAX INPUT
45V
MAX
INPUT
Typical
2-Wire
Transmitter
+IN REF +OUT
Transmitter Input
Sensor
Process Signal
Simulated Input

18
Operation (cont’d)
Calibrate Voltage Inputs
Select the Source mode by pressing the SOURCE/READ button until “SOURCE”appears on the
display.
Display: V, mV
This function provides an output from 0.00 mV to 110.00 mV and from 0.00 VDC to 10.25
VDC. Source current is a nominal 20 mA to provide the driving power to the voltage receivers.
1. Turn the Selector knob to VDC.
2. Connect the black and red leads to the meter as shown.
3. Repeatedly press the RANGE/TYPE button until “SOURCE”and “V”or “mV”appear on the
display.
4. Disconnect one or both input wires from the device to be calibrated.
5. Connect the red lead of the meter to the plus (+) input of the device and the black lead to
the minus (-).
6. Press the RANGE/TYPE button to toggle between mV and V.
With the toggle switch at SET, adjust the output to the desired value.
7. Flip the toggle switch to HI or LO to use the stored values. See the Storing Output Values
section to change the stored values.
145
23
!
!
!
!T/C +
–
300V
MAX
INPUT
5V MAX
INPUT 45V MAX INPUT
45V
MAX
INPUT
Voltage Receiver Input
Controller
Transmitter
Computer
Logger
DCS

IPM-300
19
Operation (cont’d)
Check 1 to 5 Volt Inputs without Disconnecting Wires
Select the Source mode by pressing the SOURCE/READ button until “SOURCE”appears on the
display.
Display: V, mV
Most 1 to 5 V receivers in 4 to 20 mA loops have a 250 ohm resistor across the input of the
receiver. This resistor may be mounted internally or externally. The IPM-300 is connected
directly across the input of the 1 to 5 V receiver without disconnecting any field wiring. Ensure
that changing the signal input will not disturb the process or cause unexpected alarms when
checking on-line instruments. To produce the desired voltage across the device input, the
IPM-300 will source or sink current up to its limit of > 20 mA.
Note: The IPM-300 drives only the device to which it is connected. It has no effect on other
devices in the 4 to 20 mA loop.
1. Turn the Selector knob to VDC.
2. Connect the black and red leads to the meter as shown.
3. Press the RANGE/TYPE button to select V.
4. Connect the red lead of the meter to the plus (+) input of the device and the black lead to
the minus (-).
5. With the toggle switch at SET, adjust the output to the desired value.
6. Flip the toggle switch to HI or LO to use the stored values. See the Storing Output Values
section to change the stored values.
Note: Any associated 250 ohm resistor must not be disconnected.
14 5
23
!
!
!
!T/C
+
–
300V
MAX
INPUT
5V MAX
INPUT 45V MAX INPUT
45V
MAX
INPUT
Controller
(Typical)
Recorder
Computer
Logger
etc.
1-5V DC
Additional
4-20 mA or 1-5V
Instruments
+
+
–
+–
–
+–
Typical
2-Wire
Transmitter
250Ω
+IN–REF +OUT–

20
Operation (cont’d)
Calibrate Thermocouple Inputs
Select the Source mode by pressing the SOURCE/READ button until “SOURCE”appears on the
display.
Display: T/C Type; J, T, E, K, °F, °C
This function simulates a thermocouple signal into any instrument requiring a thermocouple
input. The output of the unit is automatically cold junction compensated.
1. Turn the Selector knob to T/C.
2. Press the RANGE/TYPE button until the desired T/C type and temperature scale appear.
3. Disconnect the thermocouple from the instrument to be calibrated.
4. Use thermocouple wire and corresponding miniature thermocouple connector to connect
the unit to the instrument.
5. With the toggle switch at SET, adjust the output to the desired value.
6. Flip the toggle switch to HI or LO to use the stored values. See the Storing Output Values
section to change the stored values.
14 5
23
!
!
!
!T/C
+
–
300V
MAX
INPUT
5V MAX
INPUT 45V MAX INPUT
45V
MAX
INPUT
Instrument with
Thermocouple Input
Controller
Temperature Indicator
Temperature Trip or Alarm
Temperature Transmitter
+–