EC/TDS-500/600

This series of instruments are industrial on-line instruments for measuring and controlling conductivity. It applies widely to the measurement and control of pure water in the fields of pharmacy, chemical industry, electronic industry, food industry and beverage industry.

Product Details

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Product Details

Technical Performance

	EC/TDS-500	EC./TDS-600
maximum control output	√	√
insulating 4-20mA/RS485 optional	---	√

Measuring range	0～200uS/cm□ 2000uS/cm□, 0～20mS□, 0～200mS□ 0～2000ppm□, 0～5000ppm□,
Displaying mode	LCD
Accuracy	1.5%（FS）
Stability	±2×10-3(FS)/24h
Working pressure	0～0.5MPa
Medium’s temperature	0～50℃
Temperature compensation	Taking 25℃ as the datum point, digital temp. compensation
Output Current/ Votage	insulated active output 4-20mA (≤ 500Ω)
Control output	maximum and minimum (constantly open) contact point output.
Capacity of contact points	3A/AC250V (with resistant loads)
Provided electrodes	1.0cm-1 electrodes (0.1cm-1 constant optional)
Length of the cable	4.5m or otherwise agreed m
Environmental conditions	temperature: 0～50℃
Humidity	≤85%RH
Power supply	AC 220V±10% 50/60Hz □ AC 110V±10% 50/60Hz □
External dimensions	48×96×100mm (height×width×depth)
The hole on the dial plate	45×91mm
The way of installation	install with a disk

Installation

• 1. Measure the white terminal of the electrode
• 2. Measure the black terminal of the electrode
• 3. Measure the yellow terminal of the electrode
• 4. Measure the red terminal of the electrode
• 5. 4-20mA positive terminal
• 6. 4-20mA negative terminal
• 7. The constantly open terminal of the minimum control relay
• 8. The public terminal of the control relay
• 9. The constantly open terminal of the maximum control relay
• 10. Power Input
• 11. Equipment ground wire
• 12. Power Input

Operation Of The Instrument

4.1 Soft key function

Soft key	Key function	Function description
	Menu Key	Under Measuring status, check or exit related parameter “setting Menu”
	Right shift key	Right Shift to select the digit of the parameter,
	Down shift key	Down shift to browse Menu； Change the selected parameter digital value and parameter shift
	Confirm key	Confirm to select and enter into Menu and save parameter , to check the temperature value under main interface

4.2 Main Men Interface Display

Under main interface，Press“ ”key to Menu interface， the detailed description as follows:

No.	Menu	Menu Content
1	Un-T	Measuring Unit: ppm /uS shift to display
2	CON	Electrode constant input
3	H--C	Relay high limit close value
4	HO--	Relay high limit open value
5	LC--	Relay low limit close value
6	LO--	Relay low limit open value
7	dE--	delay x second alarm
8	4--A	4mA corresponding conductivity value
9	20-A	20mA corresponding conductivity value
10	Add--	RS485 address
11	bAUd	RS485 Baud rate
12	CAL-	EC Calibration Menu
13	FAC-	Factory setting

Installation Of Measuring Electrodes

In order to make the electrodes measure correct conductivity in the pipeline, make sure to avoid data inaccuracy caused by the air bulbs or backwater in the conductance cell. Please install strictly according to the following diagram:

The way to install the pipeline

Note:

(1) The electrodes shall be installed where the position is comparatively low, the flow speed is steady and air bulbs seldom gather together.

(2)No matter horizontally installed or vertically installed, the conductance cell shall be submerged deep into the moving water.

(3) The measuring cable for measuring signals which are weak electric signals shall be separately wired, and must not be connected in the same group of wires with the power wire and control wire, so as to avoid interference

(4)If you need a longer measuring cable, please contact the manufacturer for the supply of it.

Maintenance

6.1 Measuring electrodes are accurate electrodes. You must not dismantle them or alter their shape or size, or clean them with strong acid or strong alkali, for such operations may change the constants of the electrodes and affect the accuracy of the measurement.

6.2 The measuring cables are special cables and must not be replaced at will.

6.3 The instrument shall be installed in a dry environment or control box, so as to protect it against splashing water drops or moisture and to avoid inaccurate measurement.

The Instrument As A Whole Set

Conductivity/TDS controller	1pc
Conductivity/TDS sensor (1.0cm-1)	1pc
Fixing clamp	1 pair
Operation manual	1 copy

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FAQS

Frequently Asked Questions (FAQ) About EC/TDS-500/600

What is EC/TDS - 500/600 and what scenarios is it used in?

It is an online conductivity/total dissolved solids controller, used in scenarios such as water quality monitoring.

How do I install the EC/TDS - 500/600 Online Controller?

Select a suitable location, install the probe, connect the line and debug.

How do I maintain and calibrate my EC/TDS - 500/600 controller?

Calibrate regularly, clean the probe, and check whether the circuit is normal.

EC/TDS - 500/600 Why is the measurement inaccurate?

Probe failure, calibration error, interference from environmental factors.

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