Measuring&Guaging tools

DLTEREN Agricultural Water Treatment Conductivity Meter Pure Water Treatment Conductivity Tds Meter Digital pH Meter

DLTEREN Agricultural Water Treatment Conductivity Meter Pure Water Treatment Conductivity Tds Meter Digital pH Meter

Product description:
INQUIRY

Used for the conductive measurement/control of electrolytic conductivity,resistivity or the TDS value. Conductivity is a function of ion concentration, ionic charge, and ion mobility. Ions in water conduct current when an electrical potential is applied across electrodes immersed in the solution. A controller system consists of a microprocessor-based controller and a conductivity probe.

4 Electrode cells（K=0.01,0.1,1.0 and 10.0）can be connected to the device. Temperature serves as the second input variable, measured by a Pt100/1000 probe. Depending on the measured variable, it is therefore possible to implement specific, automatic temperature compensation.

All adjustments to the current outputs, alarm relays, and calibration of the conductivity and temperature inputs can be made using the controller's membrane keypad.

Conductivity meter

1. Temperature: Compensation temperature 2. Analog output: Analog output 3. Measured value: Real-time measurements value 4. High alarm: High alarm 5. Low alarm: Low alarm 6. EXIT: Check related warning status on the “monitoring page” ; Return to previous level page in the up& down level page；linked to “menu page” 7. MENU: Enter the MENU on the “monitoring page”; Exit the MENU on the “menu page” 8. ▶: Enter the menu under “monitoring interface”; Exit the menu under “monitoring interface”

▼: Relevant menu is selected under the “menu interface”；Relevant numerical value is modified under the setup status

9. ENTER：Enter the sub-menu or confirm modification on the “menu Page”

Technical Features

Screen size	2.8 inch
Dimension	Overall dimension: 100mm100mm150mm(HWD)
Dimension	Cutout dimension：92.5mm92.5mm(HW)
Weight	0.65Kg
Ingress protection	IP54
Measure variables	EC/TDS/Resistivity
Measure range	0.01electrode：0.02 ~ 20.00μS/cm
	0.1electrode：0.20 ~ 200.0μS/cm
	1.0electrode：2.00 ~ 2000μS/cm
	10.0electrode：0.02 ~ 20.00mS/cm
	Measure range for extended range controller：
	0.01electrode：0.20 ~ 200.0μS/cm
	0.1electrode：2.00 ~ 2000μS/cm
	0.1electrode：0.02 ~ 20.0mS/cm
	10.0electrode：0.20 ~ 200.0mS/cm
	Temperature range:-10 ~130℃
Temperature compensation	NTC10K/PT1000
Temperature compensation	Temperature compensation：manual/automatic
Accuracy	EC/TDS/Resistivity: ±1%FS
	NTC10K： (-10~5℃)±2℃；(5~60℃)±0.2℃；
	(60~130℃)±2℃
	PT1000： (-10~5℃)±2℃；(5~130℃)±0.2℃
Output	Isolated 4-20mA output
Output	maximum loop is 750Ω,±0.2%FS
Communication protocol	MODBUS-RTU RS485
Alarm relay	Pickup/Breakaway AC250V/3A
Relative humidity	10 ~ 85%RH(No condensation)
Operating temperature	0 ~ 60℃
Power supply	220VAC±10% 50Hz/60Hz
Storage conditions	Temperature：-15 ~ 65℃
Storage conditions	Relative humidity：5 ~ 95%RH(No condensation)

Instrument wiring

ECL1：measuring terminal of the electrode ECL2：reference terminal of the electrode NC：Unidentified A：Temperature compensation terminal A, NTC10K and PT1000 connect here B：Temperature compensation terminal B, NTC10K and PT1000 connect here C：Temperature compensation terminal C, PT1000 three-wire temperature grounding, PT1000 two-wire need to be short-connected to TEMPB, not NTC10K. 485A+：RS485 communication interface A+ 485B-：RS485 communication interface B- I+：4-20mA output end+ I-：4-20mA output end - HO：high alarm normally open relay HC：high alarm normally closed relay COM：high alarm common LO：low alarm normally open relay LC：low alarm normally closed relay COM：low alarm common N：AC220V neutral wire PE：earth wire L：AC220V live wire

Electrode Size

K=0.01 electrode	K=0.1 electrode	K=1.0 electrode	K=10.0 electrode
Suitable for pure water ultrapure water testing	Suitable for drinking water testing	Suitable for rive raw water testing	Suitable for sewage waste testing

The device offers a far wider dynamic range on the input side, the range must be matched to the operating range of the cell

Cell constant (K)	Material	Length	Diameter	Hole size	Thread	Recommended / practical measuring span (depending on the conductivity cell)
0.01	Stainless steel	77mm	13mm	6mm	NPT1/4	0.02 ~ 20 μs/cm
0.1	Stainless steel	59mm	13mm	6mm	NPT1/4	0.20 ~ 200.0μs/cm
1.0	Stainless steel	59mm	13.5mm	6mm	NPT1/4	2.00 ~ 2000μs/cm
10.0	Polysulfone	60.5mm	23.3mm	6mm	NPT3/4	0.10 ~ 20 ms/cm