DIGI-SENSE DIGI-SENSE WD-91428-02 Manual

Single-Input

Instruction Manual

Single-Input
Thermocouple
Thermometers

Type J, K, T

Thermocouple
Thermometers

T

ype J

, K,

T

68X001351 Rev0 0717 1065DGMAN_91428-00,-01,-02

99 Washington Street
Melrose, MA 02176

Phone [phone]
Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

TABLE OF CONTENTS

1. INTRODUCTION .................................... 1

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

3. SPECIFICATIONS .................................. 3

4. BATTERY INSTALLATION

AND REPLACEMENT ............................ 5

5. INSERTING AND REMOVING

RUBBER ARMOR .................................. 6

6. ASSEMBLING OPTIONAL

HANDS-FREE ACCESORIES ................ 7

7. SELF TEST ............................................ 8

8. CONNECTING A THERMOCOUPLE ...... 8

9. KEY FUNCTIONS ................................. 10

10. DISPLAY OVERVIEW .......................... 11

11. SELECTING TEMPERATURE SCALE . 12

12. HOLD FUNCTON ................................. 12

13. MIN AND MAX FUNCTION ................... 13

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

15. CALIBRATION ...................................... 13

16. CANCELING A FIELD

CALIBRATION ...................................... 14

17. FIELD CALIBRATION LOCKOUT

AND RE-ENABLE ................................ . 15

18. MAINTENANCE .................................... 16

19. CLEANING ........................................... 16

20. BATTERIES .......................................... 16

21. TROUBLESHOOTING .......................... 17

22. ACCESSORIES .................................... 18

23. WARRANTY ......................................... 20

24. PRODUCT RETURN ............................ 20

25. INNOCAL® CALIBRATION AND

REPAIR SERVICES ............................. 21

1. INTRODUCTION

This versatile handheld
instrument provides
highly accurate
temperature
measurements. The
instrument is designed
for easy operation and
includes the following
features:

• Operator selection of Celsius

or Fahrenheit scale

• Resolution of 0.1°C/F from

–199.9 to 999.9°

• Large backlit LCD with two lines

of four-digit display

• Hold feature for temporarily

retaining a reading

• Displays Min and Max readings

•

Field calibration capability

•

Disabling of Auto-Off function

• Low-battery warning

• Two-blade female ANSI mini-

connector input

• Operates with a wide selection

of probes

- 1 –

2. SAFETY PRECAUTIONS

WARNING:

1. This instrument is designed to

accept low level signals supplied
by standard thermocouples. Under
NO circumstances should the input
voltage exceed the specified 50V
RMS.

2. To prevent ignition of a hazardous

atmosphere, batteries must only be
changed in an area known to be
nonhazardous.

CAUTION:

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.

DANGER:

1. Voltages present at the

thermocouple may also be present
at the battery terminals. Always
disconnect the thermocouple
when changing batteries.

- 2 –

- 3 –

3. SPECIFICATIONS

Thermocouple Thermometers

Type

Temperature range

Type J

–210°C to 1200°C

(–346°F to 2192°F)

Type K

–250°C to 1372°C

(–418°F to 2501°F)

Type T

–250°C to 400°C

(–418°F to 752°F)

Out-of-range display: - - -

-

Resolution:

0.1°/1° auto-ranging,

0.1°C/F from –199.9 to 999.9°,

1°C/F outside this range
Accuracy:

Below –150°C (–238°F):
±0.25% of reading ±1°C (±2 °F)

Above –150°C (–238°F):
±0.1% of reading ±0.4°C (±0.7°F)

Display:
Backlit LCD of viewing area 58 x 40mm

Min/Max function:

Yes

Auto Off (after 17.5 minutes):

Enable/disable option available

Stability criteria:

Yes, upon stability of 5 seconds

- 4 –

Display update

rate:

0.5

sec per up

date

Input:

One

thermocouple with

ANSI

conn

ector

Input protection:
50V

rms

Storage:

–40°C to 65°C (–40°F to 149°F)

Humidity:

10% to 90% RH (noncondensing)

Battery life:
Size: Three AA, 1.5V; alkaline
Life: 750 hours continuous, typical,

(without backlighting)

Dimensions:
Without armor:

175mm (L) X 97mm (W) X 42mm (H)

With armor:

180mm (L) X 102mm (W) X 52mm (H)

Weight with batteries:
Without armor: 267g
With armor: 362g

Ingress protection:

Meets IEC-529 IP-54 for dust and water
resistant enclosures (probe attached)

CE Compliance

EN61326-1/A1: 1998 (EU EMC Directive)

- 5 –

4. BATTERY INSTALLATION AND

REPLACEMENT

The total battery life without
backlighting is about 750 hours.
Each bar of the battery annunciator
represents 200 hours. A blinking
empty battery annunciator indicates
150 hours remaining.

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 battery, turn
instrument off and disconnect
thermocouple.

2. Loosen screw and lift battery
cover off back of case.

3. Remove the three AA batteries.

4. Insert three new batteries
observing polarity.

5.

Install cover and tighten screw.

5. INSERTING AND REMOVING
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.

- 6 –