Aemc instruments CA865 User Manual

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RTD

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TERMÓMETRO RTD

THERMOMETER

CA865

E N G L I S H
E S PA Ñ O L

User Manual
Manual de Instrucciones

Table of Contents

ENGLISH ................................................................................................... 1

ESPAÑOL................................................................................................. 13

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

1.1 Receiving Your Shipment..........................................................3

1.2 Ordering Information.................................................................3

2. PRODUCT FEATURES .....................................................4

2.1 Description................................................................................4

2.2 Push Buttons ............................................................................5

2.2.1 Center (Yellow) Function Switch ...................................5

2.2.2 Back-Light and °C/°F Button.........................................5

2.2.3 MAX Button...................................................................5

2.2.4 HOLD Button ................................................................5

3. SPECIFICATIONS............................................................6

3.1 Environmental Specications....................................................6

3.2 Mechanical Specications ........................................................7

3.3 Safety Specications ................................................................7

4. OPERATION ....................................................................8

4.1 Operating the Model CA865 .....................................................8

5. MAINTENANCE...............................................................9

5.1 Replacing the Batter .................................................................9

5.2 Cleaning....................................................................................9

Repair and Calibration...........................................................................10

Technical and Sales Assistance ............................................................10

Limited Warranty ...................................................................................11

Warranty Repairs...................................................................................11

RTD Thermometer Model CA865

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CHAPTER 1

INTRODUCTION

Warning

• Thermometers are not designed to work on live electrical
samples.

• Do not use this instrument when voltages at the sample point
exceed 24VDC or 24Vrms.

• Do not make temperature measurement in microwave ovens.
Leaking microwaves may result in burns and serious injuries.

• Repeated sharp exing can cause the RTD sensor to break.
To prolong sensor life, avoid sharp bends in the thermocouple,
especially near the connector.

International Electrical Symbols

This symbol on an instrument indicates a WARNING and that
the operator must refer to the user manual for instructions before
operating the instrument. In a manual, the symbol preceding
instructions indicates that if the instructions are not followed, bodily
injury, installation/sample and product damage may result.

Risk of electric shock. The voltage at the parts marked with this
symbol may be dangerous.

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RTD Thermometer Model CA865

1.1 Receiving Your Shipment

Upon receiving your shipment, make sure that the contents are consis­tent with the packing list. Notify your distributor of any missing items. If
the equipment appears to be damaged, le a claim immediately with the
carrier and notify your distributor at once, giving a detailed description of
any damage. Save the damaged packing container to substantiate your
claim.

1.2 Ordering Information

RTD Thermometer Model CA865......................................Cat. #2121.28

Includes meter, shockproof holster, 9V battery and user manual.

RTD Thermometer Model CA865

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CHAPTER 2

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PRODUCT FEATURES

2.1 Description

The RTD Thermometer Model CA865 is a portable, compact digital meter
designed to use an RTD Pt385/100Ω as the temperature sensor for pre­cise temperature measurements in a variety of environments.

The RTD probe provides fast response time, accurate measurements, and
good repeatability. Features include a 3 digit LCD with readings to 1999.
The meter is supplied with one RTD probe and a shockproof protective
holster.

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1. RTD sensor

2. 3 digit display

3. MAX button

4. °C/°F selector & backlight

5. HOLD button

6. Power ON/OFF

RTD Thermometer Model CA865

2.2 Push Buttons

2.2.1 Center (Yellow) Function Switch

Turns the Thermometer ON or OFF. Slide the button to OFF after use.

2.2.2 Back-Light and °C/°F Button

• Press the button to turn the Back-Light ON.

• Press the button again to turn the Back-Light OFF.

• Press the button for 2 seconds to change the temperature scale to
°C or °F. The temperature scale °C or °F is displayed in the lower right
hand side corner of the display.

NOTE: At power-up the thermometer displays °C or °F, based on the last
measurement.

2.2.3 MAX Button

• Press the MAX button to enter the MAX mode. The “MAX” annunciator
appears in the upper right hand corner of the display.

• The thermometer then records and updates the maximum absolute
temperature values.

• Press the MAX button again to exit the MAX-recording mode (“MAX”
goes out).

• The HOLD button may be used in the MAX mode to “Freeze” (no
longer updates) the MAX measurement on the display.

• Press HOLD again to resume the MAX mode recording.

2.2.4 HOLD Button

The Hold button “freezes” the reading on the display. Press the “HOLD”
button to toggle (activate/release) HOLD. In the HOLD mode, the “HOLD”
annunciator is displayed in the upper part of the LCD display and the last
reading is displayed until released.

RTD Thermometer Model CA865

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CHAPTER 3

SPECIFICATIONS

3.1 Environmental Specications

Temperature Scale:

Celsius (°C) or Fahrenheit (°F) user-selectable

Measurement Range:

-58° to 199.9°F, -50° to 199.9°C

Resolution: 0.1°F/°C

Accuracy (meter):

Meter: ± 1°F / ± 0.5°C not including probe accuracy
RTD Probe Accuracy: -50° to 100°C ±1°C

100° to 199.9°C: ±1.5°C

-58° to 199.9°F: ±2°F

(Accuracy is specied for operating temperatures over the range of 64° to 82°F (18° to 28°C),
for 1 year, not including RTD probe error)

Temperature Coefcient:

0.1 times the applicable accuracy specication per °C from 0° to 18°C and

28° to 50°C.

Input Protection:

24VDC or 24Vrms maximum input voltage on any combination of inputs.

Input Connector:

Accepts standard miniature 3-prong RTD connectors.

Sample Rate: 2.5 times per second, nominal

Operating Temperature:

32° to 122°F (0° to 50°C) at < 80% RH

Storage Temperature:

-4° to 140°F (-20° to 60°C), 0 to 80% RH with battery removed

Altitude: 2000m max

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RTD Thermometer Model CA865

3.2 Mechanical Specications

Display:

3 digit liquid crystal display (LCD) with maximum reading of 1999

Over-Range: “OL” is displayed

Low Battery Indication:

The
level

Power Supply:

Standard 9V battery (NEDA 1604, IEC 6F22 006P, or equivalent)

Battery Life: 200 hours typical with carbon zinc battery

Dimensions: 6.81 x 2.38 x 1.5" (173 x 60.5 x 38mm)

Weight: Approx 6.2 oz (175g) including battery

Probe: 135 x 4mm Ø RTD probe (Teon tube insulation)

Maximum insulation temperature 220°C

is displayed when the battery voltage drops below the required

3.3 Safety Specications

EN 61010-1 (1995-A2), Protection Class III

Overvoltage Category (CAT III, 24V), Pollution Degree 2

Indoor Use

RTD Thermometer Model CA865

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