1. INTRODUCTION This instrument is a digital thermometer for use with platinum-type temperature sensor. Temperature indication follows IEC751 temperature table for PT-type sensor.
2. SPECIFICATIONS 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:...
Page 5
2. SPECIFICATIONS 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...
3. SYMBOL DEFINITION AND BUTTON LOCATION This indicates that the minus temperature is sensed Celsius and Fahrenheit indication °C °F PTxxx Platinum Type Indication HOLD 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...
Page 7
3. SYMBOL DEFINITION AND BUTTON LOCATION Pt type temperature MAX MIN Average control sensor connector button LCD display Back light button Power ON/OFF button Relative readout button HOLD button °C , °F control button...
4. OPERATION INSTRUCTIONS 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.
4. OPERATION INSTRUCTIONS 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. OPERATION INSTRUCTIONS 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.
5. TEMPERATURE MEASUREMENT 5.1 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 temperature insert the probe into the item you want to measure to a distance at least 15 times the diameter of the sheath.
6. TEMPERATURE METER CALIBRATION SETUP Below table diagram shows each button function when user enter into calibration mode. Note: Turn the Power “OFF” before attempting following SETUP. Setup mode is cancelled during below procedure if “POWER” button is pressed. P.11...
Page 13
6. TEMPERATURE METER CALIBRATION SETUP 6.1 Pt type selection 6-1-1. Press and hold “Power” + “Light” buttons for 2 seconds to enter setup mode. 6-1-2. Press “Hold” button to enter PT selection mode. 6-1-3. Press “Max” button to select between PT probe type.
Page 14
6. TEMPERATURE METER CALIBRATION SETUP 6.2 0 °C Calibration 6-2-1. Press and hold “Power” + “Light” buttons for 2 seconds to enter setup mode. Insert temperature probe into 0°C Deg. Standard calibration unit before calibration. Hold the probe until condition is stabilized before starting calibration.
Page 15
6. TEMPERATURE METER CALIBRATION SETUP 6-2-5. Press “REL” button to con rm present calibration value. 6-2-6. Press “°C/°F” button to con rm selection. 6.3 Recall Default factory setting value 6-3-1. Press and hold “Power” + “Light” buttons for 2 seconds to enter setup mode. 6-3-2.
Page 16
6. TEMPERATURE METER CALIBRATION SETUP 6-3-3. Press “°C/°F” button to con rm PT selection. 6-3-4. Press “Light” button to enter recall mode. 6-3-5. Press “°C/°F” button to con rm revert back to “Default factory setting value”. 6-3-6. Press “°C/°F” button to con rm selection. P.15...
7. MAINTENANCE 7.1 Replacing the Batteries Remove back cover screw to remove cover. Verify polarity and 7.1.1 install new LR03(AAA size) alkaline batteries. Fit cover properly and tighten screw. 7.1.2 The unit’s back cover are tted with rubber rings. After replacing the battery, check that the rubber rings are properly seated before reinstalling the back cover.
7. MAINTENANCE 7.2 Cleaning In order to ensure the accuracy of the thermometer for a longer period of time you should calibrate it once a year. Clean the device and the window of the display with a clean, lint-free, antistatic and dry cleaning cloth. Do no use cleaning agents that contain carbon or benzenes, alcohol or anything similar to clean the product since these substances damage the surface of the measuring instrument.
8. TEMPERATURE PROBE 8.1 Piercing type temperature probe 8.2 Piercing type temperature probe Specification Sensor Type Platinum resistance thermometer sensor Pt 100(4 wires) Accuracy IEC751, class A ±0.15°C±0.002t (t: measurement temperature) Measurement Range -100 to 400°C (-148 to 752°F) Temperature Sensor Approx.
Page 20
CUSTOMER SERVICE INQUIRIES Your emails are important to us so we strive to reply all hours. In exceptional cases, inquiries and emails within we may require more time to respond. Thank you for your understanding. For more information about our products and services, please send us an email: cs@perfectprime.com For B2B or project-based application, please send an email:...