Center 520 - User Manual

520
Data Logger / K,J,E,T, Type
THERMOMETER
SE-520

Summary

General Description

Safety Information

Environment Conditions

Specifies operating environment limits including altitude, humidity, and ambient temperature for safe meter operation.

Maintenance & Clearing

Outlines safety precautions for servicing and general cleaning guidelines for the instrument case.

Safety Symbols

Defines safety symbols used in the manual and on the meter, such as CE compliance.

Specifications

Measurement Range

Details the temperature measurement ranges for K, J, E, and T type thermocouples.

Resolution

Specifies the display resolution for temperature readings in Celsius and Fahrenheit.

Accuracy

Provides accuracy specifications for temperature readings under specified ambient conditions.

Temperature Coefficient

Defines the temperature coefficient for accuracy deviation outside the specified ambient range.

Sample Rate

Indicates the data sampling rate of the thermometer.

Battery Specifications

Lists battery type, lifetime, and replacement requirements for the device.

Operating and Storage Conditions

Specifies operating and storage temperature and humidity ranges for the thermometer.

Dimensions, Weight, and Accessories

Provides physical dimensions, weight, and a list of standard accessories included with the unit.

Symbol Definition and Button Location

Symbol Definitions

Explains the meaning of various symbols displayed on the meter's LCD screen.

Button Location Diagram

Illustrates the device's layout, identifying each button and input port.

Button Instructions

Power ON;OFF Button

Instructions for turning the thermometer on and off.

Backlight Button

How to activate and deactivate the LCD backlight for better visibility.

Data-Hold Button

Procedure for freezing and unfreezing the displayed temperature readings.

REC Button

Instructions for starting and stopping data recording for the data logger function.

MEM Button

How to save current readings to memory and store the next group of readings.

RECALL Saved Reading Button

Steps to recall previously saved readings from memory and navigate groups.

MAX;MIN;AVG Button

How to monitor and display maximum, minimum, and average temperature values.

Selecting Temperature Units

Procedure for switching between Celsius (°C) and Fahrenheit (°F) units.

SETUP Button

Instructions for entering and exiting the setup options menu.

Operating Instructions

Setup Options

Overview of entering setup options and using buttons to adjust parameters.

Menu Item

Introduction to navigating menu items and setting thermocouple types.

Select Thermocouple Type

Guide to selecting the appropriate thermocouple type (K, J, E, T) for accurate readings.

Setting Interval Time for Data Storing

Procedure for setting the time interval between data log entries.

Set Offset to Compensate for Probe Errors

How to adjust readings to compensate for probe inaccuracies or specific thermocouple errors.

Set Alarm Point

Instructions for setting high and low temperature alarm limits for channel T1.

Set T1-T2 Subtraction Mode

How to enable and use the mode for displaying the difference between T1 and T2.

Set Auto Power Off Time

Procedure for configuring the automatic power-off feature to save battery.

Set System Clock

Instructions for setting the internal clock for accurate time-stamped data logging.

Clearing Data Logger Records

Steps to erase all recorded data from the data logger memory.

Clearing Instant Read-out Memory

Procedure for clearing the temporary memory used for instant readings.

Connecting To A Computer

Guide on connecting the meter to a PC via USB for data transfer and monitoring.

Power Preparation

Battery Replacement

Instructions for replacing the device's batteries when voltage is low.

Testlink SE-520 SOFTWARE

SE-520 Package Contents

Lists the components included in the SE-520 software package.

System Requirements

Specifies the operating systems compatible with the SE520 software.

Minimum Hardware Requirements

Details the necessary PC hardware for installing and running the SE520 software.

Tutorial: Quick Start to Use SE520

Step-by-step guide for connecting the thermometer and recording real-time data.

Saving Recorded Data to a File

Instructions on how to save real-time data graphs and tabular data to files.

Loading Recorded Data

Procedure for loading recorded data from the thermometer into the software.

Main Menu Overview

Explanation of the main menu options available in the SE520 software.

DataLogger Window

Details on using the DataLogger window to view and graph tabular data.

Frequently Asked Questions

Answers to common user queries, including software uninstallation and graph zooming.

Maintenance

Calibration

Recommendation for annual calibration to ensure thermometer accuracy.

Cleaning Instructions

Guidelines for cleaning the device display and case using appropriate materials.

Overview

1. Function Description
2. Usage Features
3. Maintenance Features

The CENTER 520 is a four-channel data logger thermometer designed for accurate temperature measurement and recording. It supports K, J, E, and T type thermocouples, making it versatile for various applications. The device can store up to 16,000 data logger records per channel, allowing for extensive data collection over time.

Function Description:

The primary function of the CENTER 520 is to measure and log temperature data from up to four different channels simultaneously. It offers a data logging capability, allowing users to record temperature readings at specified intervals. This recorded data can be stored internally in the meter or directly transferred to a computer via a USB interface for further analysis using the included Windows software. The device also features an instant recall function, enabling users to quickly review saved readings. A temperature alarm function is integrated, which alerts the user if the measured temperature exceeds or falls below predefined limits for channel T1. The meter can also display the difference between T1 and T2 channels, providing a useful comparative measurement. Additionally, it can monitor and store maximum, minimum, and average temperature values, which are continuously updated.

Usage Features:

The CENTER 520 is designed for user-friendly operation with a clear LCD display and intuitive button controls.

• Power ON/OFF: The device is turned on by pressing the power button and turned off by holding it for 3 seconds.
• Backlight: A dedicated backlight button illuminates the LCD for easier reading in dark environments. The backlight automatically turns off after 30 seconds to conserve battery power.
• Data-Hold: The "HOLD" button allows users to freeze the current data on the LCD screen. While in Data-Hold mode, other functions like MAX/MIN/AVG, RECALL, and SETUP are disabled.
• Recording Data (REC): Pressing the "REC" button initiates data recording, indicated by a "REC" symbol on the screen. Pressing it again stops the recording. Most buttons are disabled during recording, so settings should be configured beforehand. The device will stop recording automatically if the memory is full (16,000 records) or if the battery is low.
• Saving Readings (MEM): The "MEM" button is used to save current readings to the device's memory. The "MEM" symbol lights up for 2 seconds, and subsequent presses store readings in groups from 00 to 99.
• Recalling Saved Readings (RECALL): The "RECALL" button allows users to review saved readings. The "RECALL" symbol lights up, and users can navigate through MEM groups using the HOLD, REC, MIN/MAX/AVG, or °C/°F buttons. The LCD will first show the hour:minute:second of the recording before displaying the temperature readings.
• MAX/MIN/AVG Mode: This mode continuously monitors and stores the maximum, minimum, and average temperature values. Pressing the MAX/MIN/AVG button cycles through displaying the maximum, minimum, and average data, with corresponding symbols ("MAX," "MIN," "AVG") lighting up. Pressing it again will make all three symbols blink, showing real-time data. Holding the button for 2 seconds exits this mode.
• Temperature Units: A dedicated button allows switching between Celsius (°C) and Fahrenheit (°F) units.
• Setup Options: The "SETUP" button provides access to various configuration options, including:
  • Selecting Thermocouple Type: Users can choose between K, J, E, or T type thermocouples to match their probes.
  • Setting Interval Time for Data Storing: The interval time for data logging can be set from 1 second (00:01) to 60 minutes 59 seconds (60:59).
  • Setting Offset: An offset can be applied to compensate for probe errors, allowing for more accurate measurements. The offset range is ±5°C or ±9°F.
  • Setting Alarm Point: For channel T1, users can set high and low temperature alarm limits. If the temperature exceeds these limits, an "ALARM Hi" or "ALARM Lo" symbol will blink, and the device will emit a "beep-beep-beep" sound. The low alarm cannot be set higher than the high alarm.
  • Setting T1-T2 Subtraction Mode: This mode displays the temperature difference between channel T1 and T2 at the bottom of the LCD.
  • Setting Auto Power Off Time: Users can configure the device to automatically power off after 10, 30 minutes, 1, 2, 4, 8 hours, or disable this feature.
  • Setting System Clock: The built-in clock allows the data logger to record the date and time alongside temperature measurements. It's recommended to check and reset the clock after battery replacement.
• Clearing Data Logger Records: To clear recorded data, the unit must be off. Hold the REC button, then press the power button. Continue holding REC and the power button until "REC," "CLr," and "SUrE 5, 4...1, 0" appear, indicating the memory is being cleared. Releasing buttons during this process will abort it.
• Clearing Instant Read-out Memory: Similar to clearing data logger records, turn off the unit, hold the MEM button, then press the power button. Continue holding MEM and the power button until "MEM," "CLr," and "SUrE 5, 4...1, 0" appear.
• Connecting to a Computer: The device connects to a PC via a micro USB cable. This allows for downloading recorded data, real-time monitoring, and data logging through the Testlink SE-520 software.

Maintenance Features:

Proper maintenance ensures the longevity and accuracy of the CENTER 520 thermometer.

• Calibration: For sustained accuracy, it is recommended to calibrate the device once a year.
• Cleaning: The device and its display window should be cleaned with a clean, lint-free, antistatic, and dry cleaning cloth.
• Battery Replacement: When the battery voltage drops, a battery symbol will blink on the LCD, indicating that the batteries need to be replaced. Before replacing batteries, power off the meter and disconnect all temperature probes. The battery cabinet cover can be opened with a screwdriver, and four new UM-4 or AAA 1.5V batteries should be inserted. After replacement, close the cover and fasten the screw.
• Prohibited Cleaning Agents: Do not use cleaning agents containing carbon, benzenes, alcohol, or similar substances, as these can damage the surface of the instrument. Such fumes are also hazardous and explosive.
• Avoid Sharp Tools: Do not use tools with sharp edges, screwdrivers, metal brushes, or anything similar that could damage the device during cleaning or maintenance.

Center 520 Specifications

General

Battery	9V battery
Auto Power Off	Yes
Display	LCD
Temperature range	-50°C to 1300°C
Resolution	0.1°C/°F
Thermocouple type	K
Sampling rate	2.5 times per second
Operating temperature	0°C to 50°C
Operating humidity	10% to 90% RH
Storage humidity	10~75%RH
Measurement Range	-50°C to 1300°C (-58°F to 2372°F)
Storage temperature	-10~60°C (14~140°F)
Measurement Time	Less than 1 second