Martel Electronics 3001 User Manual

3001

Operator’s Manual

3001 Operator’s Manual

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.1 Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.2 Standard Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.3 Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.4 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.5 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

2. Calibrator Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

2.1 Front Panel Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

2.2 Primary Input/Output Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2.3 Primary Input/Output Display and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

2.4 Isolated Input Display, Controls, and Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

2.5 Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

2.6 Display Layouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

2.7 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

3. Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

4. Primary Inputs and Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

4.1 DC Voltage Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

4.2 DC Current Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

4.3 Resistance Temperature Detector (RTD) and Ohms Measure . . . . . . . . . . . . . . . . . . . . .16

4.4 Resistance Temperature Detector (RTD) and Ohms Source . . . . . . . . . . . . . . . . . . . . . . .18

4.5 Resistance Temperature Detector (RTD) with Custom Coefficients . . . . . . . . . . . . . . . . .19

4.6 Standard Platinum Resistance Thermometer (SPRT) Coefficients . . . . . . . . . . . . . . . . . . .20

4.7 Thermocouple (T/C) Measure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

4.8 Thermocouple (TC) Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

4.9 Pressure Measure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

5. Isolated Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

5.1 Voltage Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

5.2 Current Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

5.3 Pressure Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

6. Output Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

7. Application Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

7.1 P/I Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

7.2 I/P Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

7.3 V/I Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

7.4 RTD Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

7.5 RTD Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

7.6 Thermocouple Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

7.7 Thermocouple Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

7.8 RTD Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

7.9 Precision Current Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

7.10 I/I Isolator/Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

7.11 Precision Temperature Measurement with IBP-2 Probe . . . . . . . . . . . . . . . . . . . . . . . . .36

8. LCD and Remote Interface Setup Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

9. Remote Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

9.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

9.2 Setting up the RS-232 Port for Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

9.3 Setting up the IEEE-488 Port for Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

9.4 Changing Between Local and Remote Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

9.5 IEEE-488 Interface Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

9.6 Using Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

9.7 Checking 3001 Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

10. Remote Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

10.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

10.2 Command Summary by Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

10.3 Error Code Listing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

10.4 Remote Command Listing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

11. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77

11.1 Cleaning the Calibrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77

11.2 Replacing a Line Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77

11.3 Changing the Line Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78

12. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

12.1 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

12.2 DC Voltage Specifications, Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80

12.3 DC Voltage Specifications, Isolated Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80

12.4 DC Current Specifications, Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81

12.5 DC Current Specifications, Isolated Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81

12.6 Resistance Specifications, Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81

12.7 Resistance Specifications, Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81

12.8 Thermocouple Specification, Output and Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82

12.9 RTD and Thermistor Specification, Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84

12.10 RTD and Thermistor Specification, Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85

12.11 Pressure Measurement Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86

13. Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87

1. Introduction

The Martel series 3001 calibrator is an accurate full-featured temperature, pressure and
DC calibrator intended for R & D, manufacturing and calibration lab applications. The
unit's simple design and ease of operation allow users to quickly familiarize themselves
with its operations and features. Time saving functions like the ability to save, recall and
automatically cycle through setpoints for each output range, the ability to enter user
definable RTD curves, and a complete remote interface are several key features offered
by the 3001.

1.1 Customer Service

Corporate Office:

www.martelcorp.com

e-mail: [e-mail]

Tel: [phone] Fax: [phone]

Martel Electronics

3 Corporate Park Drive

Derry, NH 03038

1.2 Standard Equipment

• Power cord

• Thermocouple shorting jumper

1.3 Options and Accessories

• IBP-2 PT100 High Accuracy Probe

• 80029 JKTE Thermocouple Kit

• 80036 RSNB Thermocouple Kit

• PTL-1 Low EMF Beryllium Copper Test Leads

The 3001 and above options are available in a complete kit form.

1.4 Unpacking

Upon receipt of the shipment, inspect the container and equipment for any signs of
damage. Take particular note of any evidence of rough handling in transit. Immediately
report any damage to the shipping agent.

NOTE: The carrier will not honor any claims unless all shipping material is saved for their
examination.

After examining and removing the contents, save the packing material and carton in the
event that re-shipment is necessary.

Remove the Packing List and verify that all of the listed equipment has been received. If
there are any questions about the shipment, please call Martel Electronics at 1-800-821-

0023.

Check to see if your basic calibrator package is complete. It should include:

• 3001 Calibrator

• Instruction Manual

1

• AC Line Cord

• Thermocouple Shorting Jumper

• NIST Certificate

1.5 Safety Information

Symbols Used

The following table lists the International Electrical Symbols. Some or all of these symbols
may be used on the instrument or in this manual.

Symbol Description

AC (Alternating Current)

AC-DC

Battery

CE Complies with European Union Directives

DC

Double Insulated

Electric Shock

Fuse

PE Ground

Hot Surface (Burn Hazard)

Read the User’s Manual (Important Information)

Off

On

Canadian Standards Association

2

The following definitions apply to the terms "Warning" and "Caution".

• " Warning" identifies conditions and actions that may pose hazards to the user.

• " Caution" identifies conditions and actions that may damage the instrument being
used.

Use the calibrator only as specified in this manual, otherwise personal injury and/or
damage to the calibrator may occur.

Warning

To avoid possible electric shock or personal injury:

• Do not apply more than the rated voltage between the terminals, or between any

terminal and chassis ground. See specifications for supported ranges.

• Follow all equipment safety procedures.

• Always use the power cord and connector suitable for the voltage and outlet of the

location in which you are working.

• Do not use the calibrator if it is damaged. Before you use the calibrator, inspect the

case. Look for cracks or missing plastic. Pay particular attention to the insulation
surrounding the connectors.

• Inspect the test leads for damaged insulation or exposed metal. Check test lead

continuity. Replace damaged test leads before you use the calibrator.

• Never operate the calibrator with the cover removed or the case open, and never

remove the cover or open the case without first disconnecting the power source and all
test leads.

• Select the proper function and range for your measurement.

• Never touch the probe to a voltage source when the test leads are plugged into the

current terminals.

• When using the probes, keep your fingers away from the probe contacts. Keep your

fingers behind the finger guards on the probes.

• Connect the common test lead before you connect the live test lead. When you

disconnect test leads, disconnect the live test lead first.

• Do not use the calibrator if it operates abnormally. Protection may be impaired. When

in doubt, have the calibrator serviced.

• Do not operate the calibrator around explosive gas, vapor, or dust.

• When using a pressure module, make sure the process pressure line is shut off and

depressurized before you connect it, or disconnect, it from the pressure module.

• Disconnect test leads before changing to another measure or source function.

• Have the calibrator serviced only by qualified personnel, and use only specified

replacement parts.

• Use only the replacement fuse(s) specified in this manual.

• To avoid a violent release of pressure in a pressurized system, shut off the valve and

slowly bleed off the pressure before you attach the pressure module to the pressure
line.

3

Caution

To avoid possible damage to the calibrator or to the equipment under test:

• Use the proper terminals, function, and range for your measurement or sourcing
application.

• To avoid mechanically damaging the pressure module, never apply more than 10 ft-lb
of torque between the pressure module fittings, or between the fittings and the body of
the module.

• To avoid damaging the pressure module from overpressure, never apply pressure
above the rated maximum printed on the module.

• To avoid damaging the pressure module from corrosion, use it only with specified
materials. Refer to the pressure module documentation for material compatibility.

Make sure to remove all test connections before powering up the 3001. Failure to do so
could lead to damage of the 3001 or the unit under test.

2. Calibrator Description

2.1 Front Panel Overview

Figure 1 shows the overall layout of the front panel. Each of the three major divisions is
described in detail in the following sections.

Figure 1 - Front Panel

Item Name Description

1 Primary input/output terminals See section 2.2 for details

2 Primary input/output display and controls See section 2.3 for details

3 Isolated input display, controls, and terminals See section 2.4 for details

4

2.2 Primary Input/Output Terminals

Figure 2 describes the primary input/output terminals in detail. The display and controls
for these terminals are described in the next section.

Figure 2 - Primary Input/Output Terminals

Item Name Description

1 VOLTS DC voltage output terminals. See notes 1 and 2 below.

2 mA DC current output terminals. See notes 1 and 2 below.

3 RTD/O OUTPUT Two wire RTD and Ohms output terminals. See notes 1

and 2 below.

4 TC INPUT/OUTPUT Thermocouple input and output terminals. These termi-

nals accept a miniature polarized thermocouple plug with
flat in-line blades spaced 7.9 mm (0.312 in.) center to cen­ter.

5 4W RTD/O INPUT Four wire RTD and Ohms input terminals. See notes 1

and 3 below.

6 Pressure module input connector.

Note 1: These terminal binding posts are made of a special copper alloy to reduce thermal

EMF's. They support the use of either discreet wires or standard banana plugs, and the
HI/LO pairs are spaced for standard dual banana plugs.

Note 2: Caution. Do not exceed a maximum of 100 volts to chassis ground.

Note 3: Caution. Do not exceed a maximum of 20 volts to chassis ground.

5

2.3 Primary Input/Output Display and Controls

Figure 3 describes the primary input/output display and controls in detail.

Figure 3 - Primary Input/Output Display and Controls

Item Name Description

1 Display A 2 line, 16 character, display providing all visual user

feedback for the primary output and input operations.See
section 2.6 for layout details, and section 2.7 for possible
error messages.

2 Numeric and secondary Output value data entry keys.Secondary function selection

function keys per the text printed above the numeric key. Press the

key followed by the numeric key to select the func-

tion.

OUTPUT Change RTD/Ohms or Thermocouple to output mode.

INPUT Change RTD/Ohms or Thermocouple to input mode.

ZERO Zero the input for Pressure, Thermocouple millivolts, or

RTD ohms

SETUP Adjust the LCD Contrast, LCD Backlight, and Remote

Interface Configuration as described in section 8.

CJC Select internal or external cold junction compensation for

Thermocouple temperature measurements. When external
compensation is selected, XCJC is displayed at the start of
the second line.

°C/°F Select Centigrade or Fahrenheit units for RTD and

Thermocouple temperature measurements.

6

SET Set a new value for a preset output setpoint as described

in section 6.

RECALL Recall a preset output setpoint as described in section 6.

AUTOSET Initiate automatic stepping of preset output setpoints as

described in section 6.

RNG LOCK Select Auto-range or Range Lock for voltage output.

LOCAL Press to regain local control of the 3001 after the remote

command REMOTE has been received; in this case all
keys except this one are ignored. When the remote com­mand LOCKOUT has been received, all keys are ignored
including this one and the remote command LOCAL must
be received to regain local control.

EXP Press during entry of a RTD custom curve coefficient to

begin entering the exponent.

3 Function keys

Select DC voltage or current output mode, and toggle
between them.

Select Thermocouple or RTD/Ohms input/output mode,
and toggle between them.

Select Pressure input mode.

In Thermocouple mode, cycle through the thermocouple
types, including millivolts.In RTD/Ohms mode, cycle
through the RTD types, including ohmsIn Pressure mode,
cycle through the pressure units.

For all output modes, except Thermocouple, toggle
between Standby and Operate modes.In Standby mode,
any change to the output value in the display is not driven
to the terminals until the Operate mode is selected.In
Operate mode, each change to the output value in the dis­play is driven to the terminals immediately, except for DC
voltages greater then 30V when the mode reverts to
Standby automatically for safety reasons.

Changes the calibrator output or parameter to the numeric
value typed into the keypad.

7

Clears a partial keypad entry and reverts the calibrator out­put or parameter to its last known value.

Prepares for selection of a secondary function via the
numeric keypad according to the text above each key.
The display changes to SHIFT ENABLED until a numeric

key is pressed. To cancel the selection press
again.

4 Cursor controls Press or to position the cursor under the digit in

an output value that is to be incremented or decrement-

ed.Press to increment the digit in the output value
where the cursor is positioned.

Press to decrement the digit in the output value
where the cursor is positioned.

The and keys are also used to adjust LCD
Contrast level, LCD Backlight level, and Remote Interface
Configuration selections as described in section 8.

2.4 Isolated Input Display, Controls, and Terminals

Figure 4 describes the isolated input display, controls, and terminals in detail.

Figure 4 - Isolated Input Display, Controls, and Terminals

8

Item Name Description

1 Display A 2 line, 16 character, display providing all visual user

feedback for the isolated input operations. See section 2.6
for layout details, and section 2.7 for possible error mes­sages.

2 Function keys

Select DC voltage and current input mode. Subsequent
presses of this key cycle through the ranges: 10V, 100V,
and 50mA.

When using 50mA mode to test a 2 wire loop powered
transmitter that is disconnected from its wiring, press this
key to activate an internal 24V power supply in series with
the current measuring circuit. Press the key again to
deactivate the 24V supply.

When using 50mA mode to test a HART configuration
device, press this key to activate an internal 250 ohm resis­tor in series. Press the key again to deactivate the resis­tor.Note that activating this resistor drops the maximum
load driving capability from 1000 ohms at 20mA to 750
ohms at 20mA.

Select Pressure input mode. Subsequent presses of this
key cycle through the pressure units.Pressure input mode
uses the pressure module connector on the primary
input/output side. Both sides may be selected to pressure
mode simultaneously and can be set to display the same
pressure measurement in different units if desired.

3 Input Terminals Common input terminals for DC voltage and current. See

notes 1 and 2 below.

Note 1: These terminal binding posts are made of a special copper alloy to reduce thermal

EMF's. They support the use of either discreet wires or standard banana plugs, and the
HI/LO pairs are spaced for standard dual banana plugs.

Note 2: Caution. Do not exceed a maximum of 100 volts to chassis ground.

9

2.5 Rear Panel

Figure 5 describes the rear panel layout.

Figure 5 - Rear Panel

Item Description

1 RS-232 9 pin connector for remote control of the 3001 via any computer's serial interface.

2 GPIB IEEE 488.2 connector for remote control of the 3001 via a GPIB bus.

3 Service port for updating the 3001 firmware.

4 Chassis ground terminal internally connected to the ground prong of the AC power inlet.

Warning To avoid shock hazard, connect the factory supplied 3 conductor power

cord to a properly grounded power outlet. Do not use a 2 conductor adapter or extension
cord as this will break the protective ground.
Use the chassis ground terminal for a protective ground wire if there is any question about
the grounding through the 3 conductor power cord.

5 Standard IEC AC power inlet for 120/240 VAC.

6 Main power on/off switch.

7 Power line voltage selector and fuse compartment. See section 11 for instructions on

changing the line voltage selector and changing fuses.

Warning To prevent electrical shock, only remove the line voltage selector and

fuse holder when the power cord is removed.

10

2.6 Display Layouts

a) Primary Voltage and Current Display

Figure 6 - Primary Voltage and Current Display Layout

Item Description

1 Operating mode:

AUTO: Auto-range
LOCK: Range lock
rem remote operation
SP# Automatic stepping of preset setpoints

2 Present range and output mode

3 Output state:

Stby Standby, terminals inactive
Opr Operating, terminals are active with output per the displayed value

4 Output value

5 Units

b) Primary Thermocouple and RTD Display

Figure 7 - Primary Thermocouple and RTD Display Layout

Item Description

1 Output mode selection: RTD, TC, or rem for remote operation

2 Input or output selection

3 RTD or thermocouple type selection

11

4 Output state for RTD outputs:

Stby Standby, terminals inactive

Opr Operating, terminals are active with output per the displayed value
Blank for RTD inputs
Cold junction selection for thermocouple inputs and outputs:

XCJC External cold junction compensation; the 3001 automatic cold junction

compensation is turned off, i.e. 0 mV is always 0°C

Blank Internal cold junction compensation; the 3001 automatically measures

the ambient temperature at the thermocouple terminals and compen­sates the measurement, i.e. 0 mV is ambient temperature

5 Input or output value

6 Units

c) Primary and Isolated Pressure Display

Figure 8 - Primary and Isolated Pressure Display Layout

Item Description

1 UnitsOn the primary display, rem appears to the left during remote operation

2 Input value

d) Isolated Voltage and Current Display

Figure 9 - Isolated Voltage and Current Display Layout

12

Item Description

1 Selected range and input mode:·

• 10V RANGE or 100V RANGE for DC voltage·

• 50mA RANGE for basic DC current·

• 24mA LPWR for loop powered 2 wire transmitter·

• 24mA LPWR HART for loop powered 2 wire transmitter with 250 ohm resistor in circuit

2 Input value

3 Units

2.7 Error Messages

The following error messages may appear on either display.

Table 1 - Error Messages

Message Description

OVER RANGE The value entered on the numeric keypad exceeds the range of the output

mode selected.

OVER LOAD For DC voltage output mode, the current required to generate the output

exceeds the 3001 specifications.For DC current mode, the resistance of the
circuit exceeds the 3001 specifications.

OL For input modes, the measured value exceeds the upper limit of the selected

input mode range.For output modes, when the range is locked, the present
automatically recalled preset setpoint exceeds the upper limit of the locked
range. The output is set to zero for the duration of this setpoint.

-OL For input modes, the measured value exceeds the lower limit of the selected
input mode range.

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3. Getting Started

After unpacking the 3001 and becoming familiar with the layout and general operation of
the unit as described in the previous section, it is ready to set up for operation.

The following steps should be followed to set up the 3001 for operation:

a) Before attaching the power cord to the rear connector, check that the line voltage

selector is set appropriately for your location. The 3001 is shipped from the factory
with the line voltage set for the country of purchase. To verify the line voltage setting,
check the indicator on the power line voltage selector and fuse compartment cover;
see figure 5 in section 2.5 for the location.

Confirm that the setting is correct according to the following guidelines:

Line Voltage (50/60Hz) Selector Position

90 to 135 VAC 120 VAC position

220 to 250 VAC 240 VAC position

If the setting is not correct, follow the instructions in section 11.3 to change it.

b) Once the voltage selection has been made, making sure that the power switch is off,

connect the AC power cord to the 3001; see figure 5 in section 2.5 for the location.

c) Turn on the 3001 using the rear panel mounted rocker switch. The 3001 should

power up within a few seconds, briefly displaying the model number and firmware
version in the primary display before reverting to the normal input/output display.

NOTE: If a proper power up display does not occur within 30 seconds, turn the power
off, wait a few seconds, and repower the unit. If the problem persists, report the problem
to Martel immediately.

Warm up time is twice the time since last warmed up, to a maximum of 30 minutes. For
good stability it is best to leave the 3001 on all the time.

4. Primary Inputs and Outputs

4.1 DC Voltage Output

The 3001 can source DC voltages from 0 V to 100 V, using the following four ranges for
maximum accuracy: .1 V, 1 V, 10 V, and 100 V.

a) Disconnect any test leads from external devices.

b) Press the key to select DC voltage and current mode, if not already selected.

If DC current mode is displayed, press the key again to cycle to DC voltage mode.

c) Connect the unit under test to the voltage output terminals of the 3001 as shown in

figure 10.

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Figure 10 - DC Voltage Output Connection

d) Use the numeric keypad to enter the desired output value and press the key.

Alternatively, use the or cursor key to select a digit to modify, followed by the

or cursor key to ramp the digit up or down. This method offers a simple
solution when small changes to an output value are required, or if specific decades need
to be incremented or decremented.

e) When DC voltage mode is first selected, the 3001 is placed in the standby (Stby)

mode which puts the positive (+) output jack into a high impedance state

(>100k ohm) for safety. To place the output into the active state, press the
key which toggles between the standby and operate modes.

The standby mode is also activated in the following situations:

• If a fault occurs during operation, such as an overload or short circuit condition.

• As a safety feature for all new outputs over 30 VDC. Refer to the product specification

section of this manual for maximum drive currents.

• Warning. Scrolling the output when the output value is already over 30V will not place

the 3001 in standby mode for each new value.

• Warning. Automatic setpoints over 30V will not place the 3001 in standby mode for

each new value.

f) The 3001 can be locked to a specific voltage range by entering a value in that range

and then selecting the secondary RNG LOCK function by pressing the and

keys.

4.2 DC Current Output

The 3001 can source DC current from 0 mA to 100 mA.

a) Disconnect any test leads from external devices.

b) Press the key to select DC voltage and current mode, if not already selected.

If DC voltage mode is displayed, press the key again to cycle to DC current mode.

15

c) Connect the unit under test to the current output terminals of the 3001 as shown in

figure 11.

Figure 11 - DC Current Output Connection

d) Use the numeric keypad to enter the desired output value and press the key.

Alternatively, use the

or cursor key to select a digit to modify, followed by the

or cursor key to ramp the digit up or down. This method offers a simple

solution when small changes to an output value are required, or if specific decades
need to be incremented or decremented.

e) When DC current mode is first selected, the 3001 is placed in the standby (Stby)

mode which puts the positive (+) output jack into a high impedance state

(>100k ohm) for safety. To place the output into the active state, press the
key which toggles between the standby and operate modes.

The standby mode is also activated in the following situations:

• No connection made to the output terminals.

• The voltage compliance for a given output current is exceeded. The 3001 has a
typical voltage compliance of 10V so that 4-20mA application loads of up to 500
ohms can be driven. At maximum current of 100mA, the maximum load is 100
ohms.

4.3 Resistance Temperature Detector (RTD) and Ohms Measure

The 3001 can measure all common RTD types, 5 custom RTD curves, and a custom
SPRT in °F or °C, plus basic resistance from 0 to 4000 ohms.

The following common RTD types are supported:

Pt 385 100Ω, 200Ω, 500Ω, 1000Ω

Pt 3926 100Ω

Pt 3916 (JIS) 100Ω

Ni120 120Ω

Cu 427 (Minco) 10Ω

YSI 400

16

a) Disconnect any test leads from external devices.

b) Press the key to select thermocouple and RTD/Ω mode, if not already

selected. If thermocouple mode is displayed, press the key again to cycle to RTD/Ω
mode.

c) If output mode is displayed, select input mode by pressing the and

keys.

d) Press the key to select the desired RTD type, the custom curve, the SPRT, or

the desired ohms range. The set up and use of custom RTD coefficients is described
in section 4.5. The set up and use of SPRT coefficients is described in section 4.6.

e) Connect the unit under test to the 4 wire RTD/Ω input terminals of the 3001 as shown

in figure 12.

Figure 12 - RTD/Ω Input Connection

f) Press the and keys to toggle the RTD display between °F and °C.

g) For best accuracy, it is advisable to zero the RTD resistance circuit(s) daily, or if the

3001 is being used outside of the ambient temperature range of 18 to 28 °C. The
maximum offset from unit calibration that can be zeroed out is ±0.1 ohm for the high
range and ±0.01 ohm for the low range.

To zero a RTD resistance circuit:

• Select the RTD measure function as described above, and press the key
until the low or high ohms range is selected.

• Short the RTD/Ω terminals with the test leads normally used for RTD/Ω
measurements.

• Allow at least 3 minutes for the test leads and terminals to stabilize to the same
temperature.

• Press the and keys to zero the ohms range.

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4.4 Resistance Temperature Detector (RTD) and Ohms Source

The 3001 can source all common RTD types and 5 custom RTD curves in °F or °C, plus
basic resistance from 5 to 4000 ohms.

The following common RTD types are supported:

Pt 385 100Ω, 200Ω, 500Ω, 1000Ω

Pt 3926 100Ω

Pt 3916 (JIS) 100Ω

Ni120 120Ω

Cu 427 (Minco) 10Ω

YSI 400

a) Disconnect any test leads from external devices.

b) Press the key to select thermocouple and RTD/Ω mode, if not already

selected. If thermocouple mode is displayed, press the key again to cycle to RTD/Ω
mode.

c) If input mode is displayed, select output mode by pressing the and keys.

d) Press the key to select the desired RTD curve or ohms range. The set up

and use of custom RTD coefficients is described in section 4.5.

e) Connect the unit under test to the RTD/Ω output terminals of the 3001 as shown in

figure 13.

Figure 13 - RTD/Ω Output Connection

f) Press the and keys to toggle the RTD display between °F and °C.

g) Use the numeric keypad to enter the desired output value and press the key.

Alternatively, use the

or cursor key to select a digit to modify, followed by the

or cursor key to ramp the digit up or down. This method offers a simple

solution when small changes to an output value are required, or if specific decades
need to be incremented or decremented.

18

h) When RTD/Ω mode is first selected, the 3001 is placed in the standby (Stby) mode

which puts the positive (+) output jack into a high impedance state (>100k ohm) for

safety. To place the output into the active state, press the key which toggles
between the standby and operate modes.

4.5 Resistance Temperature Detector (RTD) with Custom Coefficients

The 3001 has the capability to store coefficients for up to 5 custom RTD curves.

To enter the coefficients for a custom RTD curve:

a) Select RTD measure or source mode as described in the preceding sections.

b) Press the key until the USR_DEF type is selected.

c) Press the key to display the curve selection prompt "RTD CUSTOM (1-

5)".

d) Press the numeric key corresponding to the custom RTD curve to be entered.

e) At the "SET(1)/RECALL(2)" prompt, press to select custom RTD curve

data entry.

f) At the "ENTER MIN TEMP" prompt, enter the minimum temperature limit for the

custom RTD curve, and press the key.

g) At the "ENTER MAX TEMP" prompt, enter the maximum temperature limit for

the custom RTD curve, and press the key.

h) At the "ENTER R0" prompt, enter the nominal resistance value (R0) for the

custom RTD curve, and press the key.

i) At the "ENTER COEFF A" prompt, enter the first (A) coefficient for the custom

RTD curve, and press the key. To enter a coefficient that includes an

exponent, enter the mantissa, press the and keys to select the EXP

function, enter the exponent, and press the key.

j) When prompted, enter the second (B) and third (C) coefficients in the same

manner.

k) To abort the curve entry without saving any changes, press the key.

To use a custom RTD curve:

a) Select RTD measure or source mode as described in the preceding sections.

b) Press the key until the USR_DEF type is selected.

c) Press the key to display the curve selection prompt "RTD CUSTOM (1-

5)".

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d) Press the numeric key corresponding to the custom RTD curve to be used.

e) At the "SET(1)/RECALL(2)" prompt, press to recall the custom RTD curve

coefficients.

f) To use a different custom RTD curve, press the key twice to display the

USR_DEF selection prompt.

The USR_DEF function of the 3001 uses the Calendar-Van Dusen equation for sourcing
and measuring custom RTD's. The C coefficient is only used for the subrange -260 to 0
degrees Celsius. Only the A and B coefficients are needed for the subrange 0 to 630
degrees. The R0 value is the resistance of the probe at 0 degrees Celsius.

All 5 of the custom RTD curves are set to PT385 at the factory, as shown in Table 2.

Table 2 - Default Custom RTD Coefficients

Curve Subrange R0 Coefficient A Coefficient B Coefficient C

1 0 to 630 100 3.9083e10-3 -5.775e10-7 0

2 -260 to 0 100 3.9083e10-3 -5.775e10-7 -4.183e10-12

3 0 to 630 100 3.9083e10-3 -5.775e10-7 0

4 -260 to 0 100 3.9083e10-3 -5.775e10-7 -4.183e10-12

5 0 to 630 100 3.9083e10-3 -5.775e10-7 0

Table 3 shows the coefficients for RTD types PT391 and PT392. The C coefficient is only
used for temperatures below 0 degrees Celsius.

Table 3 - Other Common RTD Coefficients

RTD Type R0 Coefficient A Coefficient B Coefficient C

PT392 100 3.9848e10-3 -5.87e10-7 -4.0e10-12

PT391 100 3.9692e10-3 -5.8495e10-7 -4.2325e10-12

4.6 Standard Platinum Resistance Thermometer (SPRT) Coefficients

The SPRT function of the 3001 uses ITS-90 standard coefficients as a basis for measuring
a SPRT. The five custom coefficients are entered as deviations from the standard
coefficients, and as such, all of them are set to zero at the factory.

The coefficients A- and B- represent the A

4

and B4coefficient, obtained when the SPRT is

calibrated at the triple points of argon, mercury and water. This covers the 83.8058K to

273.16K subrange. Coefficients A, B and C can represent different coefficients based on
which subranges of the SPRT has been calibrated. For example, if the 273.15K to

933.473K subrange was used, A, B and C would represent A

7

, B7and C7whereas if the

273.15K to 692.67K subrange was used, A and B would represent A

8

and B8and C=0.

To enter the deviation coefficients for a custom SPRT:

a) Select RTD measure mode as described in the preceding section.

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b) Press the key until the SPRT type is selected.

c) Press the key to display the action prompt "SET(1)/RECALL(2)".

d) Press to select custom SPRT data entry.

e) At the "ENTER MIN TEMP" prompt, enter the minimum temperature limit for the

custom SPRT, and press the key.

f) At the "ENTER MAX TEMP" prompt, enter the maximum temperature limit for

the custom SPRT, and press the key.

g) At the "ENTER RTPW" prompt, enter the nominal resistance value (RTPW) for

the custom SPRT, and press the key.

h) At the "ENTER COEFF A" prompt, enter the first (A) deviation coefficient for the

custom SPRT, and press the key. To enter a coefficient that includes an

exponent, enter the mantissa, press the and keys to select the EXP

function, enter the exponent, and press the key.

i) When prompted, enter the second (B), third (C), fourth (A-), and fifth (B-)

deviation coefficients in the same manner.

j) To abort the SPRT entry without saving any changes, press the key.

To use a custom SPRT:

a) Select RTD measure mode as described in the preceding section.

b) Press the key until the SPRT type is selected.

c) Press the key to display the action prompt "SET(1)/RECALL(2)".

d) Press to recall the custom SPRT curve coefficients.

e) To use a different custom SPRT, press the key twice to display the SPRT

selection prompt.

4.7 Thermocouple (T/C) Measure

The 3001 can measure all common thermocouple types in °F or °C, plus basic millivolts
from -10.0 to 75.0 mV.

The following common thermocouple types are supported:

B, C, E, J, K, L, N, R, S, T, U, XK, BP

a) Disconnect any test leads from external devices.

b) Press the key to select thermocouple and RTD/O mode, if not already

21

selected. If RTD/O mode is displayed, press the key again to cycle to thermocouple
mode.

c) If output mode is displayed, select input mode by pressing the and

keys.

d) Press the key to select the desired thermocouple type or the millivolt range.

e) Connect the unit under test to the thermocouple terminals of the 3001 using a

standard T/C miniplug as shown in figure 14. One pin is wider than the other; do not
attempt to force the plug in the wrong polarization. The T/C wire used for the
connection must match the thermocouple type selected for proper cold junction
compensation. If the 3001 and the T/C miniplug are at different temperatures, wait at
least 3 minutes for the miniplug and terminals to stabilize to the same temperature.

Figure 14 - Thermocouple Input Connection

f) Press the and keys to toggle the thermocouple display between °F and

°C.

g) Press the and keys to toggle the cold junction compensation between

the internal temperature sensor and an external reference.

h) For best accuracy, it is advisable to zero the T/C millivolt circuit daily, or if the 3001 is

being used outside of the ambient temperature range of 18 to 28 °C. The maximum
offset from unit calibration that can be zeroed out is ±1 mV.

To zero the T/C millivolt circuit:

• Select the thermocouple measure function as described above, and press the

key until the millivolt range is selected.

• Insert the supplied thermocouple shorting jumper into the thermocouple terminals.

• Allow at least 3 minutes for the jumper and terminals to stabilize to the same
temperature.

• Press the and keys to zero the T/C millivolt circuit.

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4.8 Thermocouple (TC) Source

The 3001 can source all common thermocouple types in °F or °C, plus basic millivolts
from -10.0 to 75.0 mV.

The following common thermocouple types are supported:

B, C, E, J, K, L, N, R, S, T, U, XK, BP

a) Disconnect any test leads from external devices.

b) Press the key to select thermocouple and RTD/Ω mode, if not already

selected. If RTD/Ω mode is displayed, press the key again to cycle to thermocouple
mode.

c) If input mode is displayed, select output mode by pressing the and

keys.

d) Press the key to select the desired thermocouple type or the millivolt range.

e) Connect the unit under test to the thermocouple terminals of the 3001 using a

standard T/C miniplug as shown in figure 15. One pin is wider than the other; do not
attempt to force the plug in the wrong polarization. The T/C wire used for the
connection must match the thermocouple type selected for proper cold junction
compensation. If the 3001 and the T/C miniplug are at different temperatures, wait at
least 3 minutes for the miniplug and terminals to stabilize to the same temperature.

Figure 15 - Thermocouple Output Connection

f) Press the and keys to toggle the thermocouple display between °F and

°C.

g) Press the and keys to toggle the cold junction compensation between

the internal temperature sensor and an external reference.

h) Use the numeric keypad to enter the desired output value and press the key.

Alternatively, use the

or cursor key to select a digit to modify, followed by the

23

or cursor key to ramp the digit up or down. This method offers a simple

solution when small changes to an output value are required, or if specific decades
need to be incremented or decremented.

i) For best accuracy, it is advisable to zero the T/C millivolt circuit daily, or if the 3001 is

being used outside of the ambient temperature range of 18 to 28 °C. This procedure
is described in section 4.7 on thermocouple measurements.

4.9 Pressure Measure

The 3001 can support the following types of pressure modules:

• BETA Calibrators Corporation BETA Port-P Modules

• Fluke Corporation Model 700 Series Modules

• Mensor Corporation Model 6100 Modules

The BETA modules require the use of the BETA BPPA-100 Adapter and offer the best
performance vs. cost. The adapter allows the user to "Hot Swap" a pressure module for
quick range changes. For applications that require very high accuracy the Mensor 6100
Series, while expensive, will yield the best accuracy. Pressure modules from Fluke will
plug directly into the 3001. It may be helpful to discuss your pressure needs with Martel
Technical Support before you purchase modules.

a) Connect the pressure module to the 3001 as shown in figure 16.

Figure 16 - Pressure Module Connection

b) Press the key. The 3001 automatically senses which pressure module is

attached and sets its range accordingly.

c) Press the key to select the desired pressure units for display.

d) Before attaching the module to the pressure source, zero the module as described in

the instruction sheet that came with the module. Procedures vary, but all end with

pressing the and keys.

e) Attach the module to the pressure source according to the instruction sheet that

came with the module, taking care to follow all safety precautions when dealing with
high pressures.

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5. Isolated Inputs

5.1 Voltage Input

The 3001 can measure DC voltages from 0 V to 100 V, using the following two ranges for
maximum accuracy: 10 V, and 100 V.

a) Disconnect any test leads from external devices.

b) Press the key to select isolated DC voltage and current input mode, if not

already selected. If the desired DC voltage mode is not displayed, press the key
again to cycle to the desired DC voltage mode.

c) Connect the unit under test to the isolated voltage/current input terminals of the 3001

as shown in figure 17.

Figure 17 - Isolated DC Voltage Input Connection

5.2 Current Input

The 3001 can measure DC current from 0 mA to 50 mA.

a) Disconnect any test leads from external devices.

b) Press the key to select isolated DC voltage and current input mode, if not

already selected. If the DC current mode is not displayed, press the key again to
cycle to it.

c) Connect the unit under test to the isolated voltage/current input terminals of the 3001

as shown in figure 18.

25