EC700 Benchtop Conductivity Meter Instruction Manual APERA INSTRUMENTS, LLC www.aperainst.com v2.
Table of Contents 1 Brief Introduction ............................................................................................................. - 1 1.1 Main Features ........................................................................................................................ - 1 - 2 Technical Specifications..................................................................................................... - 1 - 3 Instrument Description .................................................
1 Brief Introduction Thank you for purchasing Apera Instruments EC700 Benchtop Conductivity Meter. This instrument is an outstanding combination of advanced electronics desin and sensor technology. It’s the most economical choice of a reliable lab benchtop conductivity meter. Please read this maual carefully to properly use and maintain the meter. Apera Instruments reserves the right to update the contents of this manual without giving prior notices. 1.
Temp. Others 3 Calibration 1-4 point Auto Calibration Range 0 to 100˚C; 32 to 212°F Resolution 0.1˚C; 0.1/1°F Accuracy ±0.5˚C ±1 digit Data Storage 50 groups Storage Content Numberings, Measurement, Unit, Temperature, Temperature Compensation Status Power DC9V/300mA IP Ratings IP54 dustproof and spillproof Size and Dimension (240*235*103) mm/1kg Instrument Description 3.
(10) — Self-Diagnosis icons and numberings (11) — Temperature compensation mode icons — ATC: Auto Temperature Compensation; MTC: Manual Temperature Compensation (12) — Completed calibration icons (13) — Stable reading icon (14) — Icons for maximum and minimum values 3.2 Keypad Figure-2 3.2.1. Keypad operations Short press ----- <1.5 seconds; Long press ----- >1.5 seconds. 3.2.2 For keypad operation, please see Table-1.
3.3 Connectors Symbol Connector Name Connector Type COND Socket for conductivity electrode BNC TEMP Socket for temperature sensor RCA DC9V DC9V power socket Φ2.5 direct type 3.4 Stable reading display mode When the measuring value is stable, smiley face icon appears on LCD, see Figure-3. Please do not get the reading value or make calibration until the icon appears and stays. Figure - 3 3.5 Data storage, recall, and deletion 3.5.
numberings in RM indicates the number of stored data in current mode (cond/TDS). For example, if 20 groups of data is stored in conductivity mode, and 10 groups in TDS mode, then the numberings for M+ will be “M+30” in both conductivity and TDS mode; the numberings for RM in conductivity mode would be “RM20”, in TDS mode “RM10”. 3.6 Max/Min Function Use this function to display the maximum or minimum records out of groups of measuring data.
Table-2 Calibration icon pH standard buffer series 84 μS/cm 1413 μS/cm 4-Point calibration 12.88 mS/cm 111.8 mS/cm 4.3.2 How often to calibrate • We recommend to calibrate the conductivity meter once per month under normal conditions. • If the requirement for accuracy is high or the temperature of the test sample has a big difference to the reference temperature (25 ˚C), we recommend to do the calibration once a week.
4.5 TDS and Conductivity 4.5.1. TDS and conductivity is linear related. The conversion factor is 0.40-1.00. Adjust the factor from parameter P2.6. The factory default setting is 0.71 and please refer to Section 7.4. The meter only needs to be calibrated in Conductivity mode, then after calibration of conductivity, the meter can switch from conductivity to TDS. 4.5.2. Adjust TDS conversion factor in parameter setting P4 according to the data collected during testing and experience.
4.7 Parameter Setting Table-9 Symbol Parameter setting content Parameter Factory default setting P1 Select electrode constant 0.1, 1.0, 10 1.0 P2 Select reference temperature 15 - 30 ℃ 25℃ 0.00 - 9.99% 2.00% P3 Adjust temperature compensation coefficient P4 Adjust TDS Factor 0.40 – 1.00 0.71 P5 Select temperature unit ℃-℉ ℃ P6 Clear stored data No – Yes No P7 Restore to factory default No – Yes No 4.7.
P4—Adjust TDS Factor (0.40-1.00) 1. Press to confirm. 2. Press , “0.71” flashes, press or to enter P5, or press to adjust from 0.40-1.00; press to return to measurement mode. P5 —(°C—°F) 1. Press , “°C” flashes, press press to confirm. 2. Press to enter P6, or press , “°F” flashes; when parameter flashes, to return to measurement mode. P6 — Clear storage (No—Yes) 1. Press , “No” flashes, press to choose No→Yes; press confirm No— not to clear data storage; Yes—clear all data storage 2.
5 Complete Kit Content Quantity 5.1 EC700 Benchtop Conductivity Meter 1 5.2 2301T-F Plastic Combination Conductivity Electrode 1 5.3 Conductivity standard calibration solutions: (84μS/1413μS 1 for each /12.88mS, 50ml for each) 5.4 9V Power Adapter 1 5.5 Electrode Holder 1 set 5.
