Perfect Prime TC0370 User manual

RTD THERMOMETER
TC0370
Instruction Manual

CONTENTS
P. 1
1. Introduction
2. Specifications
3. Symbol Definition and Button Location
4. Operation Instructions
4.1 Power-Up
4.2 Connecting the temperature probe
4.3 Selecting the Temperature Scale
4.4 Data-Hold Operation
4.5 Back light Operation
4.6 Relative Operation
4.7 MAX/MIN/AVG Operation
4.8 Auto Power O
4.9 Low Battery Condition
5. Temperature Measurement
6. Temperature Meter Calibration Setup
7. Maintenance
7.1 Replacing the Batteries
7.2 Cleaning
8. Temperature Probe
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1. INTRODUCTION
P. 2
This instrument is a digital thermometer for use with platinum-type
temperature sensor.
Temperature indication follows IEC751 temperature table for PT-type
sensor.

NUMERICAL DISPLAY:
4 digital liquid crystal display
MEASUREMENT RANGE:
-100°C ~ 300°C; -148°F ~ 572°F
RESOLUTION:
Platinum resistance temperature sensor for pt-100, pt-500, pt-1000
(selectable) 4 wires.
ALPHA=0.003850
MEASUREMENT CURRENT:
Approx 0.53mA
MAXIMUM VOLTAGE AT TEMPERATURE COUPLE INPUT:
60V DC, or 24Vrms AC
ENVIRONMENTAL:
• 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 18°C TO 28°C64.4°F TO 82.4°F
2. SPECIFICATIONS
P. 3
Range Accuracy
-100°C ~ 300°C
-148°F ~ 572°F
±(0.1% reading + 0.4°C)
±(0.1% reading + 0.8°F)

TEMPERATURE COEFFICIENT:
For ambient temperatures from 0°C ~ 18°C(32°F ~ 64.4°F ) and 28°C
~ 50°C(82.4°F ~122°F), for each °C/°F ambient below 18°C(64.4°F) or
above 28°C(82.4°C) add the following tolerance into the accuracy spec.
0.01% of reading + 0.03°C ( 0.01% of reading + 0.06°F )
Note:
The basic accuracy Specication does not include the error of
the probe please refer to the probe accuracy specication for
additional details.
SAMPLE RATE: 2 Times Per Second
WATER RESISTANCE: IP67
DIMENSION: 150 × 66 × 31mm
WEIGHT: 175g Approx.
ACCESSORY: PT-100 Probe(class A), Battery, Instruction Menu
OPTION: Connection Cable
POWER REQUIREMENT: Battery 1.5V X 3 Size AAA
BATTERY LIFE: Approx. 100hours With Alkaline Battery
2. SPECIFICATIONS
P. 4

3. SYMBOL DEFINITION AND
BUTTON LOCATION
P. 5
This indicates that the minus temperature is sensed
Celsius and Fahrenheit indication
Platinum Type Indication
This indicates that the display data is being hold
The Maximum value is now being displayed
The Minimum value is now being displayed
The Average value is now being displayed
The reading is now under Relative Mode
The Battery power potential indication
This indicates Auto Power O is enabled
REL
AVG
MAX
MIN
HOLD
PTxxx
°C °F
-

3. SYMBOL DEFINITION AND
BUTTON LOCATION
P. 6
1
2
3
4
5
6
7
8
Pt type temperature
sensor connector
LCD display
Power ON/OFF button
HOLD button
2
3
4
1MAX MIN Average control
button
Back light button
Relative readout button
°C , °F control button
6
7
8
5

4. OPERATION INSTRUCTIONS
P. 7
4.1 Power-Up
Press the key to turn the thermometer ON or OFF.
4.2 Connecting the temperature probe
For measurement, plug the temperature probe into
the input connectors.
4.3 Selecting the Temperature Scale
When the meter was rst powered on, the default scale setting is set
at Celsius (°C) scale. The user may change it to Fahrenheit (°F) by
pressing “ °C/°F ”button and vice versa to Celsius.
4.4 Data-Hold Operation
The user may hold the present reading and keep it on the display by
pressing the “HOLD”button. When the hold data is no longer
needed, one may release the data-hold operation by pressing
“HOLD” button again.
When the meter is under Data Hold operation, the“ REL”,
and “ °C/°F ” button are disabled.
4.5 Back light Operation:
Press the“Back Light” button to turn back light on and press it once
again to turn it o.
The meter will turn back light o if there is no push“Back Light”
button for 10 seconds.

4. OPERATION INSTRUCTIONS
P. 8
4.6 Relative Operation:
When one presses the“ REL” button, the meter will memorize the
present reading and the dierence between the new reading and the
memorized data will be shown on the display. Press the“ REL”
button again to exit the Relative operation.
4.7 MAX/MIN/AVG Operation:
When one presses the button the meter will enter the
MAX/MIN/AVG mode. Under this mode the maximum value,
minimum value and average value of latest 8 data is kept in the
memory simultaneously and updated with every new data.
When the MAX symbol is displayed, the Maximum is shown on the
display.
Press again, then the MIN symbol is on the display and also
the minimum reading.
Press again, the AVG symbol is on the display and also the
average reading.
Press again, MAX, MIN and AVG will blink together. This means
that all these data is updated in the memory and the reading is the
present temperature.
One may press to circulate the display mode among these
options.
When the meter is under operation, “ REL” and “°C/°F ” are
disabled.
To exit the MAX/MIN mode, one may press and hold for two
seconds.

Battery OK, measurements are possible.
Battery Low, battery needs to be replaced,
measurements are still possible.
Battery exhausted, the battery need to
replaced with new one(size AAA, 1.5V x 3).
4. OPERATION INSTRUCTIONS
P. 9
4.8 Auto Power Off:
By default, when the meter is powered on, it is under auto power o
mode. The meter will power itself o after 30 minutes if no key
operation.
One may press and hold“HOLD” button and then power on the
meter and there will be two successive beeps to indicate that auto
power o is disabled.
4.9 Low Battery Condition:
The temperature meter incorporates visual low battery indication as
follows: