Digi-Sense 91428-07 Bedienungsanleitung

Instruction Manual

Single-Input

RTD Thermometer

(Model 91428-07)

68X001350 Rev0 0717 065DGMAN_91428-07

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TABLE OF CONTENTS

QUICK-START GUIDE............................. 1

1. INTRODUCTION................................ 2

2. SAFETY PRECAUTIONS................... 3

3. SPECIFICATIONS.............................. 4

4. BATTERY INSTALLATION AND

REPLACEMENT................................. 6

5. INSERTING AND REMOVING

OPTIONAL RUBBER ARMOR............ 7

6. ASSEMBLING OPTIONAL HANDS-

FREE ACCESORIES.......................... 8

7. CONNECTING AN RTD PROBE........ 9

8. KEY FUNCTIONS..............................10

9. DISPLAY OVERVIEW .......................11

10. MEASUREMENT MODE ...................12

11. SELECTING TEMPERATURE

SCALE ..............................................13

12. MIN AND MAX FUNCTION................14

13. AUTO OFF FUNCTION.....................14

14. CALIBRATION...................................15

15. CLEAR FIELD CALIBRATION...........16

16. FIELD CALIBRATION UNLOCK........16

17. FIELD CALIBRATION LOCKOUT......17

18. MAINTENANCE.................................18

19. CLEANING........................................18

20. TROUBLESHOOTING.......................19

21. SERVICE...........................................20

22. REPLACEMENT METER &

ACCESSORIES.................................20

23. WARRANTY......................................21

24. PRODUCT RETURN.........................21

25. INNOCAL® CALIBRATION AND

REPAIR SERVICES ..........................22

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- 1 -

QUICK-

START

GUIDE

To ensure best results please read the

complete manual.

1. Connect probe.

2. Press the on/off key.

Press again to turn on backlight.

3. Select °C or °F display using °C/°F key.

4. Insert probe in sample.

Allow adequate time for reading to

stabilize.

Response time will vary depending on

probe.

5. Take reading.

Press hold key to freeze display.

Press min/max to display minimum or

maximum temperature.

6. Press and hold the on/off key for three

seconds to turn meter off.

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1. INTRODUCTION

This versatile handheld

instrument provides highly

accurate temperature

measurements and is

designed for easy operation,

which includes the following

features:

xOperator selection of Celsius or

Fahrenheit scale

xResolution of 0.1° (auto ranging)

xFour-digit backlit LCD

xHold feature to retain a reading

temporarily

xField calibration capability

xLow-battery warning

xAuto power off with Enable/Disable

function

xMin and Max readings display

x3-pin circular connector input

xOperates with a wide selection of

probes

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- 3 -

2. SAFETY PRECAUTIONS

Voltages present at the RTD may also be

present at the battery terminals. Always

disconnect the RTD when changing

batteries.

This instrument is designed to accept low

level signals supplied by standard 100 Ω

RTDs. Under no circumstances should the

input voltage exceed the specified 10V rms.

1. Do not use or store this instrument in

microwave ovens or any abnormally

hot or cold areas.

2. Weak batteries should not be left in the

instrument. Dead batteries can leak and

cause damage to unit.

WWARNING

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- 4 -

3. SPECIFICATIONS

Platinum RTD Probes

100 ohm platinum: alpha = 0.003850

–200 to 850°C (–392 to 1562°F)

Out-of-range display: “Ur”, “Or”, “OPEN”

Range

Accuracy

–200.0 to –100.0°C

(–392 to –148°F)

±2.0°C

(±4.0°F)

–99.9 to 199.9°C

(–148 to 392°F)

±0.2°C

(±0.4°F)

200.0 to 850.0°C

(392 to 1562°F)

±2.0°C

(±4.0°F)

Resolution

0.1° (–200.0 to 850.0°C);

0.1° (

–392.0 to 999.9°F);

1° (1000 to 1562°F)

Display

4-digit LCD (¼ x ½" digits);

1/3x

1 ½" backlit viewing

area

Display update

rate

0.5 sec per updat

Input

One probe with 3 pin circular

connector (Switchcraft TA3F)

Input protection

10V rms

Battery

Three AA, 1.5V alkaline

Battery life

700 hours continuous

Auto

shutoff

17 minutes after last

keypress

Stated

accuracy

18 to 28°C

(64 to 82°F)

Useful

range

0 to 40°C

(32 to 104°F)

Storage

–40 to 65°C

(–40 to 149°F)

Humidity

10% to 90% RH

(noncondensing)

Dimensions

Without armor

With armor

(L x W x H )

175 mm x 97 mm x 42 mm

180 mm x 102 mm x 52 mm

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- 5 -

Weight

Without armor

With armor

267 g

362 g

Ingress protection

(

with probe

attached)

Meets IEC-529 IP54 for

dust

and water-resistant

enclosures

compliance

EN61326-1/A1:

1998 (EU EMC Directive)

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- 6 -

4. BATTERY INSTALLATION AND

REPLACEMENT

Voltages present at the RTD may also be

present at the battery terminals. Always

disconnect the RTD when changing

batteries.

Weak batteries should not be left in the

instrument. Dead batteries can leak and

cause damage to unit.

The typical battery life is about 700 hours.

Selected settings are stored in memory and

will remain in memory even after power is

turned off, or while batteries are being

replaced.

1. Before

changing

batter

, tur

instrume

nt off

and

disconnect probe

Loosen

screw

and

lift batter

cover

off

the

back

of case.

Remove

the t

hree

AA batteries.

4. Insert three

new

batteri

observing

pol

arit

5. Install

cover

and

tig

ten

screw

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5. INSERTING AND REMOVING

OPTIONAL RUBBER ARMOR

Figure 1: Removing Optional Rubber Armor

1. To insert thermometer into the optional

rubber armor, slide in from the top of

meter before pushing the bottom edges

of meter down to set it into position. Lift

up the stand at the back of meter for

bench top applications if necessary.

2. To remove thermometer from armor,

push out from the bottom edges of meter

until it is completely out of boot.

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- 8 -

6. ASSEMBLING OPTIONAL

HANDS-FREE

ACCESORIES

You can use the optional magnets and

strap in the Hands-Free Kit accessories for

hands-free operations.

Figure 2: Hands-Free Kit

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