Digi-Sense 93210-50 User Manual

Cole-Parmer Instrument Co.

625 East Bunker Court

Vernon Hills, Illinois U.S.A. 60061-1844

[phone]

[phone] (Fax)

800-323-4340

www.coleparmer.com

e-mail: [e-mail]

A-1299-0879

Edition 01

ThermoLogR

THERMISTOR THERMOMETER

MODEL NO . 93210-50

CERTIFICA TE OF

CONFORMANCE

This thermometer was calibrated using
equipment traceable to the National Insti­tute of Standards and Technology (NIST).

This instrument conforms to
ITS-90.

The accuracy of the thermometer at the
time of calibration was within specifications
stated in the operating manual.

Model No.:__________________________
Serial Number:______________________
Date placed in service:________________
To purchase a NIST certificate of traceabil-

ity with test data and test date for meter and
probe, please contact your dealer or:

Cole-Parmer Instrument Company

625 East Bunker Court

Vernon Hills, Illinois USA 60061-1844

Toll-free: 800-323-4340

1

INTRODUCTION

This versatile hand-held instrument provides highly
accurate temperature measurements in Celsius or
F ahrenheit using a wide selection of 400, 500 and
700 series thermistor probes.

This instrument covers these measuring ranges:
400 Series: –40.00°F to +302.0°F (–40.00°C to

+150.0°C)

500 Series: –40.00°F to +302.0°F (–40.00°C to

+150.0°C)

700 Series: –40.00°F to +212.0°F (–40.00°C to

+100.0°C)

The instrument is designed for easy oper ation and
includes the follo wing features:

• Operator selection of temperature scale

• Resolution of 0.01° from –40.00°C to +99.99°C
or –40.00°F to +99.99°F

• LCD with three four-digit displa ys

• 1/4 in diameter input

• Hold feature f or temporarily retaining a reading

2

• Field calibration capability

• Low battery warning

• Stores or logs up to 1000 readings with real-time
markers

• Scrolls through all stored readings

• Displays MIN and MAX readings

• Interfaces with optional HEWLETT PACKARD

®

infrared printer or optional RS-232-C adapter

• Prints temperature and time of reading

• Built-in tilt stand for easy hands-free operation

3

SAFETY PRECAUTIONS

THIS INSTRUMENT IS

DESIGNED TO ACCEPT
LOW LEVEL SIGNALS SUPPLIED BY STANDARD
THERMISTORS . UNDER NO CIRCUMST ANCES
SHOULD THE INPUT VOLTAGE EXCEED THE
SPECIFIED 10 V RMS .

DO NOT USE OR STORE

THIS INSTRUMENT IN
MICROWAVE OVENS OR ANY ABNORMALLY
HOT OR COLD AREAS .

WEAK BA TTERIES SHOULD

NOT BE LEFT IN THE
INSTRUMENT. DEAD BATTERIES CAN LEAK
AND CA USE D AMAGE T O UNIT.

VOLTAGES PRESENT AT

THE THERMISTOR MAY
ALSO BE PRESENT AT THE BATTERY
TERMINALS. ALWAYS DISCONNECT THE
THERMISTOR WHEN CHANGING BATTERIES.

W ARNING

D ANGER

CAUTION

CAUTION

4

SPECIFICATIONS

THERMISTOR PR OBES
T ype T emperature Range

400 Series: –40.00°F to +302.0°F

(–40.00°C to +150.0°C)

500 Series: –40.00°F to +302.0°F

(–40.00°C to +150.0°C)

700 Series: –40.00°F to +212.0°F

(–40.00°C to +100.0°C)

Accuracy: ±0.06°F (±0.03°C) exclusive of probe
Linearization: Conforms to ITS-90.
Input Protection: 10V rms
Display Update: 0.6 seconds per update
Input: One probe with 1/4 inch phone jack

connector.

Battery

Size: Two AA, 1.5V alkaline ANSI-L40,

IEC-LR6

Life: >500 hours continuous, typical

Display: LCD with 0.4 in high characters main

readout and 0.2 in high characters secondary
displays, 4 digits each display plus various
annunciators.

Operating:

Stated Accuracy: 0°C to 40°C

(32°F to 104°F)

Useful Range: 0°C to 40°C

(32°F to 104°F)

Storage: –40°C to 65°C

(–40°F to 149°F)

Humidity: 10% to 90%

(non-condensing)

5

Dimensions

3 cm D x 8.4 cm W x 15.8 cm H
(1.2 in x 3.3 in x 6.2 in)

Weight with batteries: 227 grams (8 ounces)
Ingress protection: Meets IEC-529 IP-54 for dust

and water resistant enclosures.

Electromagnetic Compatibility (IEC-801-3)

Unit exceeds radiated susceptibility
requirements of ENV -50140.

6

BATTERY INSTALLATION AND

REPLACEMENT

WEAK BA TTERIES SHOULD

NOT BE LEFT IN THE
INSTRUMENT. DEAD BATTERIES CAN LEAK
AND CA USE D AMAGE T O UNIT.

VOLTAGES PRESENT AT

THE THERMISTOR INPUT
MAY ALSO BE PRESENT AT THE BATTERY
TERMINALS. ALWAYS DISCONNECT THE
THERMISTOR WHEN CHANGING BATTERIES.

CAUTION

D ANGER

7

If battery indicator turns on, battery life is
approximately 8 to 10 hours. The battery indicator
will start blinking with less than 1 hour of life
remaining.

AT THIS POINT , BATTERY MUST BE CHANGED .
IF BA TTER Y VOL T AGE GOES TOO LOW , DISPLA Y
WILL GO BLANK.

See SPECIFICATIONS f or battery type.

1. Before changing battery , turn instrument off and
disconnect probe.

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

3. Remov e the two AA batteries.

4. Insert two new batteries, observing polarity .

5. Install cov er and tighten screw .

AC ADAPTER

An optional AC adapter can be used f or po w er to
conserve batteries. The adapter is not a charger
and will not charge batteries. The adapter connects
to the bottom of the thermometer. When the adapter
is connected, the batteries are disconnected. Refer
to the ACCESSORIES section for adapter
information.

8

CONNECTING A THERMISTOR

Use either a 400 series or 700 series ther mistor
with your instrument. Be sure your instrument
setting matches the thermistor, using an incorrect
thermistor type will result in erroneous readings.
(Series 500 thermistor probes may be used along
with the supplied correction chart to convert meter
readings to actual temperature.)

T o change between 400 and 700 series thermistors,
see Selecting Thermistor Series on page 14.

Insert the 1/4 in plug into the mating connector on
the top of the instrument.

9