scigiene RD0370 User manual

Digital RTD Thermometer
Part# RD0370
Instruction Manual

Table of Contents
Features...................................................................................... 3
S p ecifications .................................................................................... 3-4
Instrument Description ..................................................................... 5-6
Operating Instructions ...................................................................... 7-9
Temperature Measurement............................................................. 10
Battery Replacement.........................................................................11
Calibration Procedure..........................................................................12
Temperature Meter Calibration Setup.............................................12-14
Product Maintenance.........................................................................15
Temperature Probe.............................................................................15
2

Features
This digital RTD thermometer is to be used with platinum-type
temperature sensors. The temperature indication follows the IEC751
temperature table for PT-type sensors.
• IP67 waterproof housing
• Platinum resistor temperature sensor requires less temperature
compensation than thermocouple units
• 4-digit LCD readout with LED backlight
• °C/°F switchable
• Min/Max/Avg functions
• Relative mode and Data hold
• Low battery indication with auto power off
• Includes piercing type temperature probe
(Pt-100, IEC751
Class A accuracy)
• Ideal for food service applications
Specifications:
Measurement Range: -100°C ~ 300°C; -148°F ~ 572°F
Resolution:
0.1°C; 0.1°F;
Sensor types: Platinum resistance temperature sensor for
pt-100, pt-500, pt-1000 (selectable) 4 wir es .
ALPHA=0.003850
Measurement current: Approx 0.53mA
Maximum Voltage at
Thermocouple input: 60V DC, or 24Vrms AC
3

Envir onmental:
• Operating Temperature and Humidity:
0°C ~50°C (32°F - 122°F); 0 - 80% RH
• Storage Temperature and Humidity:
-10°C to 60°C (14°F - 140°F); 0 - 80% RH
• Altitude up to 2000 meters,
Accuracy (at 23 ± 5°C):
Range Accuracy
-100°C ~ 300°C
±(0.1% reading + 0.4°C)
-148°F ~ 572°F ±(0.1% reading + 0.8°F)
Temperature Coefficient:
For
ambient temperatures from 0°C to 18°C and 28°C to 50°C, for each
degree celcium ambient below 18°C or above 28°C add the following
tolerance into the accuracy specification.
0.01% of reading + 0.03°C ( 0.01% of reading + 0.06°F )
The basic accuracy Specification does not include the error of
the
probe, refer to the probe accuracy specifications (on page
16) for additional details.
Sample Rate: 2 times per second
Water
resistance: IP67
Power Supply: Battery 1.5V x 3 size AAA
Battery Life: Approx. 100 hours with alkaline
batteries
Dimensions: 150 × 66 × 31mm
Weight: 175g
Appr ox.
Accessories: Pt-100 Probe (class A) (model TP-R01),
batteries and instruction manual
Optional Accessories
: Pt-100 Probe (class A ) (model TP-R01),
soft carrying
case (model CA-05A)
4

Instrument Description
1 — Pt type temperature sensor connector
2 — LCD
display
3 — Power ON/OFF
button
4 — HOLD
button
5 — MAX/MIN/Average control
button
6 — Back light
button
7 — Relative
readout button
5

Display
Symbol definitions
and b
utton locations
-
This
indicates that the minus temperature is sensed
°C/°F
Celsius and Fahrenheit indication
Pt xxx Platinum Type
Indication
HOLD
This indicates that the display data is being held
MAX The Maximum value is being
displayed
MIN
The Minimum value is being
displayed
AVG
The Average value is being displayed
REL The
reading is under Relative Mode
The battery power level indication
This indicates Auto Power Off is enabled
6

..
Operating Instructions
Turning the meter on
Press the button to turn the thermometer ON or OFF .
Connecting the temperature probe
For measurement, plug the temperature probe into the input connectors.
Selecting the Temperature Scale
When the meter is first turned on, the default scale setting is set to the
Celsius (°C) scale. It can be changed to Fahrenheit (°F) by pr essing
“ °C/°F ” button and vice versa back to Celsius.
Data-Hold Operation
To hold the present reading and keep it on the display, press the “ HOLD ” .
b
utton. When the hold data is no longer needed , release the data-hold
operation
by pressing “HOLD” button again.
When the meter is under Data Hold operation, the “ REL”,
and “°C/°F”
buttons are disabled.
Back light Operation
Press the “Back Light” button to turn the back light on,
press i t once again to turn it of f. The meter will turn the
back light off
automatically if the “Back Light ” button is not
pressed after 10 seconds
7
AVG MAX MIN

AVG
MAX MIN
Relative Operation
When the “ REL” button is pressed, the meter will memorize the pr esent
reading and the difference between the new reading and the memorized
reading
and the result will be shown on the display. Press the “ REL ”
button again to exit the relative operation.
MAX/MIN/AVG Operation
When the
AVG
MAX MIN
button is pressed, the meter will enter the
MAX/MIN/AVG mode. Under this mode the maximum value, minimum
value and average value will appear simultaneously. The average value is
calculated using the last 8 readings from the memory, it will update with
every new r eading.
When the MAX symbol is displayed, the Maximum value is shown on the
display.
Press AVG
MAX MIN again and the NIN symbol is on the display and also
the
minimum r
eading.
Press AVG
MAX MIN again and the
AVG symbol is on the display as well as the
average reading.
Press AVG
MAX MIN again and the
MAX, MIN and AVG will blink together. This
means that all these readings are updated in the memory and the
r
eading is the current temperatur e.
Press AVG
MAX MIN to
circulate the display mode among these options.
When the meter is under
functions are disabled.
AVG
MAX MIN
operation, the “ REL” and “ °C/°F ”
To exit the
MAX/MIN mode, press and hold
8
for two seconds.

Auto Power Of f
By default, the meter is in auto power off mode. The meter will power itself
off after 30 minutes without operation.
To
disable the auto power off, press and hold the “HOLD” button and turn
the meter on. There will be two successive beeps to indicate that the
auto power off has been disabled.
Low Battery
This meter indicates the battery power level directly on the display. Use
this reference guide to establish battery power level .
Battery power level is FULL, you can still
take measurements .
Battery power lever is LOW, the battery will
need to be replaced, you can still take
measur ements.
Battery power lever is EMPTY, the batteries
need to replaced (size AAA, 1.5V x 3). Y ou
can no longer take measurements .
For complete instructions on how to replace the batteries see page
11.
9

Temperature Measurement
Correct Measurement Method
The temperature sensor is located at the
end of the metal sheath of the sheath
type temperature probe.
To accurately
test internal temperatures, insert the
probe to a distance of at least 15 times the
diameter of the sheath directly into the
item
you want to measur e.
Connector Configuration
Source-
Sense +
Source +
Sense -
NC
10