Fluke 712B Operating Manual

712B

RTD Calibrator

Users Manual

January 2014

© 2014 Fluke Corporation. All rights reserved. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.

LIMITED WARRANTY AND LIMITATION OF LIABILITY

This Fluke product will be free from defects in material and workmanship for three years from the date of purchase. This
warranty does not cover fuses, disposable batteries, or damage from accident, neglect, misuse, alteration, contamination, or
abnormal conditions of operation or handling. Resellers are not authorized to extend any other warranty on Fluke’s behalf.
To obtain service during the warranty period, contact your nearest Fluke authorized service center to obtain return
authorization information, then send the product to that Service Center with a description of the problem.

THIS WARRANTY IS YOUR ONLY REMEDY. NO OTHER WARRANTIES, SUCH AS FITNESS FOR A PARTICULAR
PURPOSE, ARE EXPRESSED OR IMPLIED. FLUKE IS NOT LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES OR LOSSES, ARISING FROM ANY CAUSE OR THEORY. Since some states or countries
do not allow the exclusion or limitation of an implied warranty or of incidental or consequential damages, this limitation of
liability may not apply to you.

Fluke Corporation
P.O. Box 9090
Everett, WA 98206-9090
U.S.A.

11/99

Fluke Europe B.V.
P.O. Box 1186
5602 BD Eindhoven
The Netherlands

Table of Contents

Title Page

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

How to Contact Fluke ..................................................................................................... 1

Safety Information .......................................................................................................... 3

Safe Working Practices .................................................................................................. 3

Standard Equipment....................................................................................................... 5

Input and Output Terminals ............................................................................................ 7

Keys ............................................................................................................................... 9

Display ........................................................................................................................... 11

Auto Power-Off ............................................................................................................... 13

Auto Backlight-Off .......................................................................................................... 13

Contrast Adjustment ....................................................................................................... 14

Magnet Mounting and Hanging Strap ............................................................................. 15

Measure mA Current ...................................................................................................... 16

Measure Temperature .................................................................................................... 16

Use Resistance-Temperature Detectors (RTDs) ....................................................... 16

Set Temperature Unit ................................................................................................ 16

Source Temperature Signals .......................................................................................... 19

Simulate RTDs ............................................................................................................... 20

Scale mA Channel to Temperature ................................................................................ 22

i

712B

Users Manual

Set 0 % and 100 % Output Parameters ......................................................................... 22

Step and Ramp Modes .................................................................................................. 23

Select Step or Ramp Mode ....................................................................................... 23

Auto Storage of Settings ........................................................................................... 23

Replace the Batteries .................................................................................................... 24

Maintenance .................................................................................................................. 25

Clean the Product ..................................................................................................... 25

Service Center Calibration or Repair ........................................................................ 25

Replacement Parts ........................................................................................................ 26

Specifications ................................................................................................................ 28

DC mA Measurement ............................................................................................... 28

Ohms Measurement ................................................................................................. 28

Ohms Source ............................................................................................................ 29

RTD Input and Output ............................................................................................... 30

General Specifications .............................................................................................. 32

ii

List of Tables

Table Title Page

1. Summary of Source and Measure Functions ........................................................................ 2

2. International Electrical Symbols ............................................................................................ 4

3. Input/Output Terminals and Connectors ................................................................................ 8

4. Key Functions ........................................................................................................................ 10

5. Elements on the Display ........................................................................................................ 12

6. RTD Types Accepted ............................................................................................................ 17

7. Replacement Parts ................................................................................................................ 26

iii

712B

Users Manual

iv

List of Figures

Figure Title Page

1. Standard Equipment .............................................................................................................. 6

2. Input/Output Terminals and Connectors ................................................................................ 7

3. Keys ...................................................................................................................................... 9

4. Elements of a Typical Display ............................................................................................... 11

5. Adjust the Contrast ................................................................................................................ 14

6. Magnet Mounting with Hanging Strap ................................................................................... 15

7. Measure Temperature with an RTD ...................................................................................... 18

8. Source Temperature Signals ................................................................................................. 19

9. Connection for Simulating a 3 and 4 Wire RTD ..................................................................... 21

10. Replace the Batteries ............................................................................................................ 24

11. Replacement Parts ................................................................................................................ 27

v

712B

Users Manual

vi

Introduction

Fluke 712B RTD Calibrator (the Product) is a handheld,
battery-operated instrument that measures and sources a
variety of RTDs. It also has an isolated channel to
measure 4-20 mA. See Table 1.

How to Contact Fluke

To contact Fluke, call one of the following telephone
numbers:

• Technical Support USA: 1-800-44-FLUKE (1-800-

443-5853)

• Calibration/Repair USA: 1-888-99-FLUKE (1-888-993-

5853)

• Canada: 1-800-36-FLUKE (1-800-363-5853)

• Europe: [phone]

• Japan: [phone]

• Singapore: [phone]

• Mainland China: [phone]

• Anywhere in the world: [phone]

Or, visit Fluke's website at www.fluke.com.

To register your product, visit http://register.fluke.com.

To see, print, or download the latest manual supplement,
visit http://us.fluke.com/usen/support/manuals.

1

712B

Users Manual

Table 1. Summary of Source and Measure Functions

Function Measure Source

Resistance 0 Ω to 4000 Ω 1 Ω to 4000 Ω

RTD
(Resistance-Temperature Detector)

Other functions Step, Ramp, Isolated mA channel for 4-20 mA measurement

Pt100 Ω (385)
Pt100 Ω (3926)
Pt100 Ω (3916)
Pt200 Ω (385)
Pt500 Ω (385)
Pt1000 Ω (385)
Ni120 Ω (672)
Pt10 Ω (385)
Pt50 Ω (385)
Cu10 Ω (427)
Cu50 Ω (427)
Cu100 Ω (427)
YSI400

2

RTD Calibrator

Safety Information

Safety Information

A Warning identifies conditions and procedures that are
dangerous to the user. A Caution identifies conditions
and procedures that can cause damage to the Product or
the equipment under test.

International electrical symbols used on the Product and
in this manual are explained in Table 2.

Safe Working Practices

Review the safety information and comply with all safe
working practices.

Warning

To prevent possible electrical shock, fire, or
personal injury:

• Carefully read all instructions.

• Read all safety Information before you

use the Product.

• Use the Product only as specified, or the

protection supplied by the Product can
be compromised.

• Do not use the Product around explosive

gas, vapor, or in damp or wet
environments.

• Never apply more than 30 V between any

two terminals, or between any terminal
and earth ground.

• Do not connect any test leads to

voltages above 30 V when used with the
product, even if ratings above 30 V
appear on the test leads.

• Do not use the Product if it is damaged.

• The battery door must be closed and

locked before you operate the Product.

• Remove all probes, test leads, and

accessories before the battery door is
opened.

• Remove the input signals before you

clean the Product.

• Have an approved technician repair the

Product.

• Replace the batteries when the low

battery indicator shows to prevent

incorrect measurements.
For safe operation and maintenance of the
Product:

• Repair the Product before use if the

battery leaks.

• Remove the batteries if the Product is

not used for an extended period of time,

or if stored in temperatures above 50 °C.

If the batteries are not removed, battery

leakage can damage the Product.

3

712B

Users Manual

Table 2. International Electrical Symbols

 Earth Ground  Battery

4





CAT II

CAT IV



Conforms to relevant Australian
Standards.

Inspected and licensed by TÜV Product
Services.

MEASUREMENT CATEGORY II is
applicable to test and measuring circuits
connected directly to utilization points
(socket outlets and similar points) of the
low voltage MAINS installation.

MEASUREMENT CATEGORY IV is
applicable to test and measuring circuits
connected at the source of the building’s
low voltage MAINS installation.

This product complies with the WEEE Directive (2002/96/EC) marking requirements. The affixed label indicates that you
must not discard this electrical/electronic product in domestic household waste. Product Category: With reference to the
equipment types in the WEEE Directive Annex I, this product is classed as category 9 "Monitoring and Control
Instrumentation" product. Do not dispose of this product as unsorted municipal waste. Go to Fluke’s website for recycling
information.





CAT III

 Conforms to relevant North American Safety Standards.

Risk of danger. Important information. See Manual.

Conforms to European Union directives.

MEASUREMENT CATEGORY III is applicable to test and
measuring circuits connected to the distribution part of the
building’s low-voltage MAINS installation.

RTD Calibrator

Standard Equipment

Standard Equipment

The items listed below and shown in Figure 1 are included with your Product. If the Product is damaged or something
is missing, contact the place of purchase immediately. To order replacement parts or spares, see the user­replaceable parts list in Table 7.

• AC175 alligator clips (2 sets)

• TL75 test leads (2 sets)

• 754-8016 alligator clips (1 set)

• Stackable test leads (1 set)

• 4 AA alkaline batteries

• Magnet Strap TPAK

• 712B/714B Safety Sheet

• 712B Quick Reference Guide

• 712B Users Manual (available on Fluke’s website)

5

712B

Users Manual

Alligator Clips

754-8016,

Alligator Clips

(1 set)

AC175

(2 sets)

Fluke-75X-Stackable

Test Leads

(1 set)

TL75

Test Leads

(2 sets)

6

Figure 1. Standard Equipment

hqu01.eps

Input and Output Terminals

Figure 2 shows the input and output terminals on the
Product. Table 3 explains their use.

RTD Calibrator

Input and Output Terminals

1

6

4

5

2

3

hqu02.eps

Figure 2. Input/Output Terminals and Connectors

7

712B

Users Manual

Table 3. Input/Output Terminals and Connectors

No. Name Description

8

, 

, 

, 

Measure, mA terminals Input terminals for measuring current.

Source/ Measure, RTD, Ω
terminals

Measure 3W, 4W Terminals for performing 3W and 4W RTD measurements.

Terminals for sourcing or measuring 2W resistance and RTDs.

Keys

The Product has keys for different purposes. Some keys
have secondary functions that are available when SHIFT
already shows on the display.

Figure 3 shows the Product keys. Table 4 explains their
use.

RTD Calibrator

Keys

2

1

3

4

10

9

3

8

5

6

7

hqu03.eps

Figure 3. Keys

9

712B

.

Users Manual

Table 4. Key Functions

No. Name Description

 
 
 
 

 

 





 

 

10








Turns the power on or off.

Shifts to secondary function when pushed before other keys (Shift mode).

Turns backlight on or off.

Toggles through the 2-, 3-, and 4-wire RTD measurement mode.

Increments output by 25 % of span. Secondary function: toggles between temperature units (°C or
°F.).

Decreases output by 25 % of span.
Up/down arrow increases or decreases the source level. Cycles through different options.

Secondary functions: Enters Ramp or Step mode.
Left/right arrow cycles through and highlights the field to be edited.
In contrast adjustment mode; left- lightens contrast, right- darkens contrast.

Secondary functions: Left arrow enters mA measurement; right arrow enters temperature measurement

Enables automatic value span of 100 % or 0 %.
Secondary function: Sets a source value to 100 % or 0 % of span.

Shifts between Measure and Source modes.

Selects RTD (resistance temperature detector) type for measurement and sourcing functions.
Secondary function: Confirms selection.

Display

Figure 4 shows the elements of a typical display. Table 5 describes the elements.

RTD Calibrator

Display

3

4

2

1

12

11

10

9

5

6

7

8

14

13

hqu19.eps

Figure 4. Elements of a Typical Display

11

712B

Users Manual

Table 5. Elements on the Display

Item No. Description

 100 % of value span

 Source or Measure mode

 Selected digit that can be edited

 Excitation current from the measuring device under test is too low.

 Battery usage status

 Excitation current from your device under test exceeds the limits of the Product.

 Unit of temperature

 RTD wire type

 Selected RTD type

 mA reading

 Ω reading

 Temperature reading

 RTD type list

 Display contrast bar

12

RTD Calibrator

Auto Power-Off

Auto Power-Off

The product provides an auto power-off function to save
power. When the auto power-off mode is enabled, the
Product automatically powers off after 15 minutes of
inactivity.

To enable the auto power-off mode:

1. Push .

2. When SHIFT shows on the display, push .

3. In the displayed setting list, highlight the Auto
poweroff option, and then use  to select this option.

To disable the the auto power-off mode:

1. Push .

2. When SHIFT shows on the display, push .

3. In the displayed setting list, highlight the Auto
poweroff option, and then use  to deselect this
option.

Auto Backlight-Off

The Product provides an auto backlight-off function to
save power. When the auto backlight-off mode is enabled,
the backlight automatically turns off after 2 minutes of
inactivity.

To enable the auto backlight-off mode:

1. Push .

2. When Shift shows on the display, push .

3. In the displayed setting list, highlight the Auto
backlight off option, and then use  to select this
option.

To disable the the auto backlight-off mode:

1. Push .

2. When Shift shows on the display, push .

3. In the displayed setting list, highlight the Auto
backlight off option, and then use  to deselect this
option.

13

712B

Users Manual

Contrast Adjustment

The Product allows you to adjust the display contrast, as
shown in Figure 5.

To adjust the contrast:

1. Push  until Measure shows on the display.

2. Push  to darken contrast, or  to lighten contrast.

14

Figure 5. Adjust the Contrast

hqu18.eps

Magnet Mounting and Hanging Strap

The Product has a magnet on the rear of the unit. It is
removable. This magnet enables users to mount the
Product on metal environment and free their hands.

In addition, this Product has a hanging strap on the
magnet. Besides its hanging purpose, the strap connects
the magnet and the Product to avoid losing the magnet.
This strap is also removable.

Figure 6 shows the magnet mounting of the Product with
the hanging strap.

RTD Calibrator

Magnet Mounting and Hanging Strap

hqu16.eps

Figure 6. Magnet Mounting with Hanging Strap

15

712B

Users Manual

Measure mA Current

To measure mA current, connect the Product to the
transmitter current terminals.

Measure Temperature

Use Resistance-Temperature Detectors (RTDs)

The Product accepts RTD types shown in Table 6.

RTDs are characterized by their resistance at 0 °C (32 °F),
which is called the “ice point” or R

The most common R
measurement inputs in 2-, 3-, or 4-wire connections, with
the 3-wire connection the most common. A 4-wire
configuration provides the highest measurement precision,
and 2-wire provides the lowest measurement precision.

To measure temperature using an RTD input, proceed as
follows:

is 100 Ω. The Product accepts RTD

0



.

0

1. If necessary, push  for Measure mode.

2. Push .

3. Use  or  to select the desired type, and push 
to confirm.

4. Push  to select a 2-, 3-, or 4- wire connection.

5. Attach the RTD to input terminals as shown in
Figure 7.

Set Temperature Unit

The Product allows you to select the temperature unit °C
or °F.

Push  to switch to shift mode, and push  to set the
temperature unit to °C or °F.

The default temperature unit is °C.

16

Table 6. RTD Types Accepted

RTD Calibrator

Measure Temperature

RTD Type Ice Point (R

) Material α Range (°C)

0

Pt100 (3926) 100 Ω Platinum 0.003926 Ω/°C -200 to 630

Pt100 (385)

[1]

100 Ω Platinum 0.00385 Ω/°C -200 to 800
Ni120 (672) 120 Ω Nickel 0.00672 Ω/°C -80 to 260
Pt200 (385) 200 Ω Platinum 0.00385 Ω/°C -200 to 630
Pt500 (385) 500 Ω Platinum 0.00385 Ω/°C -200 to 630
Pt1000 (385) 1000 Ω Platinum 0.00385 Ω/°C -200 to 630
Pt100 (3916) 100 Ω Platinum 0.003916 Ω/°C -200 to 630
Pt10 (385) 10 Ω Platinum 0.00385 Ω/°C -200 to 800
Pt50 (385) 50 Ω Platinum 0.00385 Ω/°C -200 to 800

Cu10 (427) 9.035

[2]

Copper 0.00427 Ω/°C -100 to 260
Cu50 (427) 50 Ω Copper 0.00427 Ω/°C -180 to 200
Cu100 (427) 100 Ω Copper 0.00427 Ω/°C -180 to 200

YSI400 15 to 50
[1] The Pt100 commonly used in U.S. industrial applications is Pt100 (3916), α = 0.003916 Ω/°C. (Also designated as

JIS curve.) The IEC standard RTD is the Pt100 (385), α = 0.00385 Ω/°C.

[2] 10 Ω @ 25 °C

17

712B

Users Manual

18

2W

3W

4W

Figure 7. Measure Temperature with an RTD

RTD
Sensor

RTD
Sensor

RTD
Sensor

hqu15.eps

RTD Calibrator

Source Temperature Signals

Source Temperature Signals

The Product allows you to source temperature signals via sensor. See Figure 8.

1. Push  to switch to Source mode on temperature channel.

2. Use the arrow keys to define the simulated temperature value.

The display shows the temperature channel with a set temperature value. Meanwhile, it shows the actual RTD Ohm value
below with smaller font size.

SOURCE

1

2

3

4

Common

hqu09.eps

Figure 8. Source Temperature Signals

19

712B

Users Manual

Simulate RTDs

Connect the Product to the instrument under test as shown in Figure 9. Proceed as follows to simulate an RTD:

1. If necessary, push

2. Push

3. Push

4. If the Product display shows , the excitation current from your device under test exceeds the limits of the Product.

 for the RTD display.

Use the 2W, 3W, and 4W terminals for measurement only, not for simulation. The Product simulates a 2-wire RTD
at its front panel. To connect to a 3-wire or 4-wire transmitter, use the stacking cables to provide the extra wires.
See Figure 9.

 and  to select the temperature you want. Push  and  to select a different digit to edit.

 for Source mode.

Note

20

RTD Calibrator

Simulate RTDs

SOURCE

Sensor Terminal

1

2

3

4

Figure 9. Connections for Simulating 3- and 4-Wire RTD

1

4
3

2

hqu11.eps

21

712B

Users Manual

Scale mA Channel to Temperature

The Product provides a function to convert mA current
channel reading to temperature reading.

To scale mA channel to temperature:

1. Push .

2. Push .

The temperature reading shows on the display.

To switch back to mA channel:

1. Push .

2. Push .

The mA current reading shows on the display.

Note

Temperature at 4 mA = Span check 0 %

Temperature at 20 mA = Span check 100 %

Set 0 % and 100 % Output Parameters

You must set the 0 % and 100 % source values before
you can use the step and ramp functions. Proceed as
follows:

1. If necessary, push  for Source mode.

2. Use the arrow keys to enter the value for 0 %.

3. Push  and then  to set the 0 % value.

4. Use the arrow keys to enter the value for 100 %.

5. Push  and then  to set the 100 % value.

6. Use , , , or  to adjust the value.

Note

This function is only available when Source
mode is selected.

22

RTD Calibrator

Step and Ramp Modes

Step and Ramp Modes

Select Step or Ramp Mode

The Product allows you to set Step and Ramp modes for
easier check of points within the linear range in output
mode.

To set the Step or Ramp mode:

1. Push .

2. Use  and  to select Step mode and Ramp mode.

The  or  icon shows on the Product display
accordingly.

Note

This function is only available when Source
mode is selected.

Auto Storage of Settings

The Product automatically stores the latest settings,
including the temperature unit, the linear range of mA
converting to temperature, and sensor type.

Every time you turn on the Product, it automatically
applies the last settings.

23

712B

Users Manual

Replace the Batteries

Warning

To prevent false readings, which could lead
to possible electric shock or personal injury,
replace the batteries as soon as the low
battery indicator appears.

Figure 10 shows you how to replace the batteries.

Figure 10. Replace the Batteries

hnh38.eps

24

RTD Calibrator

Maintenance

Maintenance

Clean the Product

 Warning

To prevent personal injury or damage to the
Product, use only the specified replacement
parts and do not allow water into the case.

 Caution

To prevent damage to the plastic lens and
case, do not use solvents or abrasive
cleansers.

Clean the Product with a soft cloth dampened with water
or water and mild soap.

Service Center Calibration or Repair

Calibration, repairs, or servicing not covered in this
manual should be performed only by qualified service
personnel. If the Product fails, check the batteries first,
and replace them if needed.

Verify that the Product is being operated in accordance
with the instructions in this manual. If the Product is
faulty, send a description of the failure with the Product.
Be sure to pack the Product securely, using the original
shipping container if it is available. Send the equipment
postage paid and insured, to the nearest Service Center.
Fluke assumes no responsibility for damage in transit.

To locate an authorized service center, refer to “How to
Contact Fluke” at the beginning of the manual.

25

712B

Users Manual

Replacement Parts

Table 7 lists the part number of each replaceable part.
Refer to Figure 11.

Table 7. Replacement Parts

Item Description PN Qty.

 Case top 4307068 1

 Decal 4307164 1

 Keypad 4307147 1

 Keypad support 4307112 1

Screw, M2.2 x 0.8, 5



MM, PAN, PHILLIPS

 LCD mask 4307101 1

 LCD protect rubber 4307208 1

 LCD 4313462 1

 Support LCD gasket 4307213 1

Screw, M3 x 0.5,5MM,



PAN, PHILLIPS

2032777

2032811

10

6

 Case seal rubber 4307186 1

 Case bottom assembly 4307079 1

Screw, M3, 13.5 mm,



PAN, PHILLIPS

 Battery door seal rubber 4307199 1

 AA battery 376756 4

 Pad, battery door 4417921 1

 Battery door assembly 4376901 1

 Bail stand 4307093 1

 Quick Reference Guide 4285042 1

754-8016 alligator clip

-­set, not shown

Stackable test lead set,

-­not shown

Test Leads, not shown variable

--

Alligator Clips, not shown variable

--

[1] See www.fluke.com for more information about the
test leads and alligator clips available for your region.

2388382 6

4253535 1

3669716 1

[1]

2 sets

[1]

2 sets

26

RTD Calibrator

Replacement Parts

1

10

2

6

3

4

5

8

9

7

11

12

13

14

15

16

17

19

18

hqu46.eps

Figure 11. Replacement Parts

27

712B

Users Manual

Specifications

Specifications are based on a one year calibration cycle
and apply from +18 °C to +28 °C unless stated otherwise.
All specifications assume a 5 minute warmup period.

DC mA Measurement

Range Resolution

Accuracy (% of Reading + Floor)

1 year 2 year

0-24 mA 0.001 mA 0.01 % + 2 μA 0.02 % + 4 μA

Note:
Temperature coefficient: ±(0.002 % of reading + 0.002 % of range) /°C ( <18°C or >28°C)

Ohms Measurement

Range Resolution

0.00 Ω to 400.00 Ω 0.01 Ω 0.015 % + 0.05 Ω 0.03 %+ 0.08 Ω

400.0 Ω to 4000.0 Ω 0.1 Ω 0.015 % + 0.5 Ω 0.03 %+ 0.8 Ω

Note:

1) Read accuracy is based on 4-wire input. For 3-wire ohm measurements, assuming all three leads are matched, add 0.05 Ω (0.00 Ω~400.00 Ω),

0.2 Ω (400.0 Ω~4000.0 Ω) to the specifications.

2) Temperature Coefficient: ± (0.002 % of reading + 0.002 % of range) /°C (<18 °C or >28 °C)

Accuracy (% of Reading + Floor)

1 year 2 year

28

RTD Calibrator

Specifications

Ohms Source

Accuracy

Ohms Range

Excitation Current from

Measurement Device

1.0 Ω to 400.0 Ω 0.1 mA to 0.5 mA 0.015 % + 0.1 Ω 0.03 % + 0.2 Ω

1.00 Ω to 400.00 Ω 0.5 mA to 3 mA 0.015 % + 0.05 Ω 0.03 % + 0.08 Ω

400.0 Ω to 1500.0 Ω 0.05 mA to 0.8 mA 0.015 % + 0.5 Ω 0.03 % + 0.8 Ω

1500.0 Ω to 4000.0 Ω 0.05 mA to 0.4 mA 0.015 % + 0.5 Ω 0.03 % + 0.8 Ω

Resolution

1.00 Ω to 400.00 Ω 0.01 Ω

400.0 Ω to 4000.0 Ω 0.1 Ω

Notes:

1) Supports pulsed transmitters and PLCs with pulse times as short as 5 ms.

2) Temperature coefficient: ± (0.002 % of output + 0.002 % of range) /°C ( <18 °C or >28 °C)

(% of Output + Floor)

1 year 2 year

29

712B

Users Manual

RTD Input and Output

RTD Type

(α)

10Ω Pt(385)

50Ω Pt(385)

Range

(°C)

-200 to 100 1.5 3 1 mA 1.5 3

100 to 800 1.8 3.6 1 mA 1.8 3.6

-200 to 100 0.4 0.7 1 mA 0.4 0.7

100 to 800 0.5 0.8 1 mA 0.5 0.8

Measure (°C) Source (°C)

1 year 2 year

Source

Current

1 year 2 year

30

100 Ω
Pt(385)

200 Ω
Pt(385)

500 Ω
Pt(385)

1000 Ω
Pt(385)

-200 to 100

100 to 800

-200 to 100

100 to 630

-200 to 100

100 to 630

-200 to 100

100 to 630

°C

0.2 °C 0.4 °C

0.015 %+0.18 °C 0.03 %+0.36 °C 0.015 %+0.18 °C 0.03 %+0.36 °C

0.2 °C 0.4 °C

0.015 %+0.18 °C 0.03 %+0.36 °C 0.015 %+0.18 °C 0.03 %+0.36 °C

0.3 °C 0.6 °C

0.015 %+0.28 °C 0.03 %+0.56 °C 0.015 %+0.28 °C 0.03 %+0.56 °C

0.2 °C 0.4 °C

0.015 %+0.18 °C 0.03 %+0.36 °C 0.015 %+0.18 °C 0.03 %+0.36 °C

1 mA

500 μA

250 μA

250 μA

0.2

0.2 °C 0.4 °C

0.3 °C 0.6 °C

0.2 °C 0.4 °C

0.4 °C

RTD Calibrator

Specifications

100 Ω
Pt(3916)

100 Ω
Pt(3926)

10 Ω
Cu(427)

120 Ω
Ni(672)

50 Ω
Cu(427)

100 Ω
Cu(427)

-200 to 100

100 to 630

-200 to 100

100 to 630

-100 to 260 1.5 3 1 mA 1.5 3

-80 to 260 0.15 0.3 1 mA 0.15 0.3

-180 to 200 0.4 0.7 1 mA 0.4 0.7

-180 to 200 0.2 0.4 1 mA 0.2 0.4

0.2 °C 0.4 °C

1 mA

0.2

°C

0.4 °C

0.015 %+0.18 °C 0.03 %+0.36 °C 0.015 %+0.18 °C 0.03 %+0.36 °C

0.2 °C 0.4 °C

1 mA

0.2 °C 0.4 °C

0.015 %+0.18 °C 0.03 %+0.36 °C 0.015 %+0.18 °C 0.03 %+0.36 °C

YSI400 15 to 50 0.2 0.4 250 μA 0.2 0.4

1) Sensor inaccuracies not included.

2) Resolution: 0.1 °C.

3) Read accuracy is based on 4-wire input. For 3-wire RTD measurements, assuming all three RTD leads are matched, add 1.0 °C (Pt10 and Cu10),

0.6 °C (Pt50 and Cu50), 0.4 °C (Other RTD types) to the specifications.

4) Source Accuracy in source mode is based on 0.5 mA~3 mA (1.00 Ω~400.00 Ω), 0.05 mA~0.8 mA (400.0 Ω~1500.0 Ω), 0.05 mA~0.4 mA (1500.0 Ω
~4000.0 Ω), excitation current (0.25 mA for Pt1000 range).

5) Temperature Coefficient: ±0.05 °C /°C for measure, ± 0.05 °C /°C (<18 °C or >28 °C) for source.

6) Supports pulsed transmitters and PLCs with pulse times as short as 5 ms.

31

712B

Users Manual

General Specifications

Maximum voltage applied between any
terminal and earth ground or between
any two terminals:

Operating temperature -10 °C to 50 °C
Storage temperature -20 °C to 60 °C
Operating altitude 2,000 meters
Storage altitude 12,000 meters

Relative Humidity (% RH operating
without condensation)

Vibration Requirements MIL-T-28800E, Class 2
Drop Test Requirements 1 meter
IP Rating IEC 60529: IP52
Electromagnetic Environment IEC 61326-1, Portable
Safety IEC 61010-1, Max 30 V to earth, Pollution Degree 2
Power Supply 4 AA alkaline batteries/NEDA code: 15A, IEC code: LR6
Size (H x W x L) 52.5 x 84 x 188.5 mm
Weight 524 g

30 V

Non condensing
90 % (10 °C to 30 °C)
75 % (30 °C to 40 °C)
45 % (40 °C to 50 °C)
(Without condensation)

32