RS 1319A User manual

RS DIGITAL THERMOMETER
1319A
INSTRUCTION MANUAL
MN
A
V
G
M
X
C
F

TABLE OF CONTENTS
TITLE PAGE
1. INTRODUCTION .........................................................1
2. SPECIFICATIONS.......................................................1
3. NAME OF PARTS AND POSITIONS..........................3
4. OPERATION INSTRUCTIONS ...................................5
5. OPEN THERMOCOUPLE INDICATION.....................7
6. RECALIBRATION PROCEDURE...............................7
7. MAINTENANCE ..........................................................7

1. INTRODUCTION
This instrument is a digital thermometer for use with any K-
type thermocouple as a temperature sensor.
Temperature indication follows the international temperature
scale of 1990. (ITS-90)
Read the following information carefully before attempting to
operate or service the meter. When servicing, use only
specified replacement parts.
Environmental conditions:
cAltitude up to 2000 metres.
dRelatively humidity 80% max.
eOperating temperature: 0 to 40 °C
U.S. Pat. No. 446,135
Safety symbols:
Complies with EMC Directive 89/336/EEC
2. SPECIFICATIONS
2-1 Electrical specifications
Measurement Range: -50 to 1300 °C , -58 to 1999 °F
Resolution: 0.1°C, 1°C, 0.1°F, 1°F
Basic Accuracy: (@23 ± 5℃Calibration)
Function Range Accuracy
± (% of reading + degrees)
°C
°C
°C
°F
°F
°F
-50°C to 0°C
0°C to 1000°C
1000°C to 1300°C
-58°F to 0°F
0°F to 1832°F
1832°F to 1999°F
0.5% ± 1°C
0.3% ± 1°C
0.5% ± 1°C
0.5% ± 2°F
0.3% ± 2°F
0.5% ± 2°F
1

NOTE
This basic accuracy specification does not include
the error of the temperature probe. Please refer to
the probe accuracy specification for additional details.
Temperature coefficient:
0.1 ×specified accuracy / per °C at 0°C to 18°C &
28°C to 40°C.
Input Protection : 20V maximum input voltage.
Manual Data Memory capacity : 150 sets.
2-2 General specifications:
Power supply: Qty. 6 size AAA batteries.
Battery life: approx. 110 hours (carbon zinc battery).
Low battery indication: The “ ” symbol is displayed
when the battery voltage drops below the operating voltage.
Sampling rate: 2.5 times per second.
Weight: 235 gms. (8.29 oz)
Dimensions: 5.91” L x 2.83” W x 1.38” H (150 x 72 x 35mm)
Operating temperature: 0 to 40°C (32 to 104°F)
Operating humidity below 80% RH
Storage temperature: -10 to 60°C, (14 to 140°F)
Storage humidity below 70% RH
Accessories supplied: Qty. 6 AAA batteries, Instruction
manual.
2

3. NAME OF PARTS AND POSITIONS
M
N
A
VGM
X
69
5
1
3
2
10
T1
8
7
C
F
4
M
X
A
VGMN
F
C
3

cLCD Display :
a). Main display : Temperature reading.
b). Secondary display :Temperature MAX, MIN, AVG
reading and offset reference value.
c). Memory display :1 ~ 150 sets.
d). Auto power off mark (P).
dHHOLD key : Press H HOLD key to freeze or unfreeze
the display reading.
ePower key : Press key to turn the meter on or off.
fMX/MN key :
a). Press "MX/MN" key to cycle through the maximum,
minimum, and average readings.
b). Press "MX/MN" key for 2 seconds to exit MX/MN mode.
gST Key : Press Sor Tkey to increase or decrease the
READ mode memory location.
hMEM key : Press "MEM" key each time, stores one set of
logged reading in memory.
iÌkey : Press Ìkey to enter the offset (Relative) mode,
zero the displayed reading as a reference value. The
offset mode annunciator OFFSET is displayed, and the
reference value displayed on the secondary display.
Press Ìkey again to exit the offset mode.
j℃/ ℉key : Press °C / °F key to select Celsius(°C) or
Fahrenheit (°F) temperature scale.
kREAD key : Press "READ" key to show memory logged
reading, press again to exit this mode.
lInput : Thermocouple input.
4

4. OPERATION INSTRUCTIONS
WARNING
To avoid electrical shock or personal injury, do not apply
more than 20Vrms, between the thermocouple input, or
between thermocouple and earth ground.
4-1 Temperature Measurement
cPress " " key to turn on the thermometer.
dPlug the thermocouple into the thermocouple input. If no
thermocouple is plugged into the input or the
thermocouple is "open", the display will show "- - - -.-".
ePress "°C / °F" key to the desired temperature scale.
fPerform measurements by contacting the object being
measured with the probe sensor.
gRead the temperature on the display. The display shows
"OL" (overload) when the temperature being measured is
outside the meter valid range.
4-2 MAX, MIN and AVG Function Operations
cPress "MX/MN" key to enter to MX/MN mode, to cycle
through the maximum (MAX), minimum (MIN) or the true
average (AVG-true 4 hours recording average) readings,
and disable auto power off function. If over 4 hours, will
restart the average value compute.
dPress "MX/MN" key for 2 seconds to exit MX/MN mode.
5

4-3 To Trigger "One by One Datalogging" and Clear Stored Data
cPress "MEM" key each time, stores one set logged
reading in memory, LCD will show " MEM " and memory
location numbers (1 to 150).
dPress "READ" key to enter the reading memory data
mode. LCD will show " READ " and memory location
numbers.
ePress "S" or "T"key to scroll through the logged
readings.
fPress "READ" key again to exit READ mode.
gTo Clear the Memory Data
a). Press " " key to turn off the meter.
b). Press and hold down "MEN" key then press " " key to
turn on the meter, LCD will show "ALL CLr" mark, press
Tkey select “ ” or “ ”, then press “MEM” key
exit this mode. If you select yes the all memory will be
cleared.
4-4 How to Disable Auto Power off Function
The meter will enter to the sleep mode if no key pressed
occurs for 30 minutes.
cPress " " key to turn off the meter.
dPress and hold down " HHOLD " key then press " "
key to turn on the meter, the “P” and “OFF” indication one
time, the auto power off function will be disabled.
The auto power off mark " P " on the memory display will
disappeared.
Auto power off mode is enabled each time you turn on
the meter and is automatically disabled in "MX/MN" mode.
6

5. OPEN THERMOCOUPLE INDICATION
Overrange (OL) is displayed if any of the following condition
occur:
1. If no thermocouple is plugged into the thermocouple
connector.
2. If the thermocouple connected to the input is broken or
open-circuit.
6. RECALIBRATION PROCEDURE
The thermometer should be calibrated once a year to ensure
its continued accuracy. Contact RS Components for further
details of calibration service. The address is given at the end
of these instructions.
7. MAINTENANCE
7-1 Cleaning:
Periodically wipe the case with a damp cloth and mild
detergent.
Do not use abrasives or solvents. Clean and dry as
required.
7-2 Battery Replacement:
When LCD display shows “ ”, the batteries have
insufficient power to support an accurate test. Replace
the batteries with Qty 6 type AAA cells.
May-2007
7