Center 306 - Introduction to the CENTER 306 Thermometer Datalogger; Technical Specifications of the Thermometer Datalogger; Display and Measurement Specifications; Environmental and Accuracy Details

Data Logger Instruction Manual
1
I. Introduction:
This instrument is a digital thermometer for use with any K-type thermocouple as temperature
sensor. Temperature indication follows National Bureau of Standards and IEC584
temperature/voltage table for K-type thermocouples. Its internal memory can keep up to 16312
records.(note1.) It uses RS232 interface to perform bi-directional communication with PC.
II. Specifications:
Numerical Display: 4 digital Liquid Crystal Display
Measurement Range: -200°C ~ 1370°C -328°F ~ 2498°F
Resolution: -200°C~ 200°C 0.1°C; 200°C ~1370°C 1°C
-200°F~ 200°F 0.1°F; else 1°F
Input Protection at Thermocouple Input: 60V DC, or 24Vrms AC
Environmental:
R Operating Temperature and Humidity: 0°C ~50°C (32°F ~ 122°F) ; 0 ~ 80% RH
R Storage Temperature and Humidity: -10°C to 60°C (14°F ~ 140°F); 0 ~ 80% RH
R Altitude up to 2000 meters.
Accuracy: at ( 23 ± 5°C )
Range Accuracy
-200°C ~ 200°C ±(0.2% reading + 1°C)
200°C ~ 400°C ±(0.5% reading + 1°C)
400°C~1370°C ±(0.2% reading + 1°C)
-328°F ~ -200°F ±(0.5% reading + 2°F)
-200°F ~ 200°F ±(0.2% reading + 2°F)
200°F ~ 2498°F ±(0.3% reading + 2°F)
Note:
The basic accuracy Specification does not include the error of the probe. Please refer to the
probe accuracy specification for additional details.
Sample Rate: 1.25 times per second
Dimension: 184×64×30mm
Weight: 210g Approx.
Accessory: K Type Bead Probe, Battery, Carrying Case, Instruction Menu, Soft Ware Package
(Program, RS232 Connection Cable)
Power requirement: 9 Volt Battery
Battery Life: Approx. 100hrs with alkaline battery
AC Adapter: 9VDC ±15% 100mA
Plug Diameter: 3.5mm×1.35mm
Option : AC Adapter
note1:
Every time you press "REC" button to start recording data and press "REC" button again to stop
recording, there will be a data set in memory, you can store as many data sets as you want until memory
is full.
Temperature Coefficient:
For ambient temperatures from 0°C ~ 18°C and 28°C
~ 50°C, for each °C ambient below 18°C or above
28°C add the following tolerance into the accuracy
spec.
0.01% of reading + 0.03°C
( 0.01% of reading + 0.06°F )