DS and pDS Meters Water quality testing instruments, Products from Myron L Company

Conductivity or TDS & pH Conductivity Meters (512M5)

Conductivity and pH for the Professionals
DS/pDS meters


EP-10 With four micromhos range, this instrument is the ideal choice for a wide range of application	EP-11pH. Most poplar pDS model features four conductivity ranges and a 2-12 pH range	532TI Offers three very useful ppm/TDS ranges and an internal standard for easy field calibration.

Porta-Kit with EP11/pH

No water supply is completely pure. Every industrial, commercial or natural source contains dissolved solids or salts. These impurities contribute to scale, corrosion, poor taste, and environmental pollution that endanger animal and plant life.

Myron L Company has two proven ways to measure such impurities. Our DS Meters provide fast, accurate, on-the-spot measurement of total dissolved solids (TDS) or conductivity. pDS Meters test conductivity or TDS, plus pH. Readings from their highly stable circuitry help prevent equipment damage, assure product quality and verify in-line instrumentation in a wide range of applications. Click here for recommended Standard Solution and Buffers.

DS Conductivity Meters
Meter	Range
512M2	0-50 µM
512M3	0-500 µM
512M4	0-2500 µM
512M5	0-5000 µM
512M10	0-10,000 µM
512T2	0-50 ppm
512T3	0-500 ppm
512T4	0-2500 ppm
512T5	0-5000 ppm
512T10	0-10,000
532M1	0-50,500, 5000 µM
532T1	0-50,500,5000 ppm
532T2	0-25,250,2500 ppm
EP-10	0-10,100,1000,10,000 µM
EP	0-0.5,5,50,500,5000 µM, & 2-30 megohm.

pDS pH/ Conductivity Meters
T6/pH	0-5000ppm:2-12 pH
M6/pH	0-5000 µM: 2-12pH
T2/pH	0-50,500,5000 ppm: 2-12pH
EP11/pH	0-10,100,1000,10,000 µM & 2-12 pH

Click here for recommended Standard Solution and Buffers.

Accurate reading in three easy steps


Rinse and fill cell cup	Select conductivity range	Push button and take reading

Reliability Built In
Breakage is one of the major causes of sensor failure in a typical pH or conductivity instrument. Myron L instruments provide maximum protection for both the pH and the conductivity electrodes inside the cell cup. The user-replaceable pH electrode features a chemical resistant, liquid junction.

Unique Field Tested Design
Our unique, durable, field tested design has evolved over more than 35 years, making Myron instruments among the most reliable and popular of their kind in the world.

They're lightweight and compact, yet Myron L's DS and pDS Meters are also tough, with rugged, taut-band meter movements.

Instrument Specifications Ranges	pH - 2-12 pH (pDS Meters only) Conductivity - 1, 3, 4 or 5 depending on model
Readout	2 1/2" taut-band shock resistant meter
Units of Measure Choice of parts per million (ppm)/TDS or micromhos/ (microsiemens µS) conductivity	pH - 2-12 pH (pDS Meters only) Conductivity - 1, 3, 4 or 5 depending on model
Accuracy: Conductivity pH	- ±2% full scale - ±0.2 pH units
Repeatability	±1%
Temperature Compensation	Automatic (to 25°C) for conductivity samples between 50° and 160°F (10-71°C) Except EP which is 32°-120°F (0-49°C)
Calibration Controls	Conductivity, pH Zero, and pH Gain
Electrodes (built-in)	pH - KCl gel-filled, field replaceable Conductivity - Never need replatinizing
Cell Cup	Chip and crack resistant polyethylene
Circuitry	Very stable - requires minimal recalibration
Batteries	One or two 9 volt batteries supplied, good for 2000 tests/1 year
Dimensions	3.4" W x 4.5" D x 4.0" H (85 x 129 x 126 mm)

NIST Standard solutions & pH buffers
All Myron L instruments are factory calibrated with standard solutions of known conductivity/TDS value and (when appropriate) with pH buffer values 4, 7, 10. These solutions and buffers are traceable to the U.S.

Government's National Institute of Standards and Technology primary solutions. Your instruments will be kept most accurate by periodic recalibration with the appropriate Conductivity Standard Solution and pH Buffers. See table below for recommendations. NOTE: pH 7 buffer is especially important and should be used every 1-2 weeks. Click here for recommended Standard Solution and Buffers.

* These models feature the Internal Standard for easy field conductivity calibration & range doubling.
** Also available in micromhos/microsiemens
Recommended NIST Standard solutions:
All pDS Models also Use 4, 7, 10 Ph Buffers.

DS Meters
Model	512T4*	512M5*	512T5*	512T10*	532M1*	532T1*	532T2*	EP-10	EP
Ranges	0-2500	0-5000	0-5000	0-10,000	0-50	0-50	0-25	0-10	0-0.5
					0-500	0-500	0-250	0-100	0-5
					0-5000	0-5000	0-2500	0-1000	0-50
								0-10,000	0-500
									0-5000
Units Measured	ppm**	µM	ppm	ppm**	µM	ppm	ppm	µM	µM, MW
Recommended NIST Standard Solutions
Key (see below)	F	G or N	G	O	B,D,G	B,D,G	A,C,F	K,M,O	B,D,G
* These models feature the Internal Standard for easy field conductivity calibration & range doubling. ** Also available in micromhos/microsiemens

pDS Meters
Model	T6/pH *	M6/pH	T2/pH *	EP11/pH
Ranges	2-12 pH	2-12 pH	2-12 pH	2-12 pH
	0-5000 ppm	0-5000 µM	0-50 ppm	0-10 µM
			0-500 ppm	0-100 µM
			0-5000 ppm	0-1000 µM
				0-10,000 µM
Units Measured	pH, ppm	pH, µM	pH, ppm	pH, µM
Recommended NIST Standard Solutions (All pDS Models Also Use 4, 7, 10 pH Buffers)
Key (see below)	G	G	B,D,G	K,M,O
*These models feature the Internal Standard for easy field conductivity calibration and range doubling.

Recommended that you purchase the Storage Sensor Solution when buying a pH meter

NIST Certification
Certificates are available which confirm NIST traceability of an instrument. (Order #MC) or standard solution/pH buffer (Order #SC).
Note: Both MC Meter Certificates and/or SC Solution Certificates must be specified when placing instrument/solution orders.

The sensor storage solution contains high concentrations of KCL salt to maintain and extend the life of the probe.

Accessories

Porta-Kit with EP11/pH

NIST Standard Solutions
Key	Order #	Values
A	442-15	(15 ppm/23.8 µS)
B	442-30	(30 ppm/47 µS)
C	442-150	(150 ppm/229 µS)
D	442-300	(300 ppm/445 µS)
E	442-1000	(1000 ppm/1417 µS)
F	442-1500	(1500 ppm/2060 µS)
G	442-3000	(3000 ppm/3900 µS)
H	442-15,000	(15,000 ppm/16,630 µS)
I	442-30,000	(30,000 ppm/30,100 µS)
J	KCl-18	(11 ppm/18 µS)
K	KCl-70	(45 ppm/70 µS)
L	KCl-180	(116 ppm/180 µS)
M	KCl-700	(478 ppm/700 µS)
N	KCl-1800	(1294 ppm/1800 µS)
O	KCl-7000	(5687 ppm/7000 µS)
P	KCl-18,000	(16,462 ppm/18,000 µS)
pH Buffers
pH4
pH7
pH10
Storage Solution

Click here for prices

NIST Standard Solutions and pH Buffers
All Myron L instruments are factory calibrated with standard solutions of known conductivity/TDS value and (when appropriate) with pH buffer values 4, 7, 10. These solutions and buffers are traceable to the U.S. Government's National Institute of Standards and Technology primary solutions. Your instruments will be kept most accurate by periodic recalibration with the appropriate Conductivity Standard Solution and pH Buffers. See the attached table for recommendations. NOTE: pH 7 buffer is especially important and should be used every 1-2 weeks.

DS and pDS Accessories
Code	Description
PTP	Porta-Pak: Hard foam-lined carry case for all DS and pDS Meters (small*)
PK3	Porta-Kit: Hard foam-lined carry case with Standard/Buffer Solutions, for pDS Meter models M6/PH, T2/PH and T6/PH (large**)
PK7	Porta-Kit: Hard foam-lined carry case with Standard/Buffer Solutions for pDS Meter EP11/PH**
STK	Soil Test Kit for model AG-5*
PSTK	Soil Test Kit with Standard/Buffer Solutions, Alkalinity Test Kit and test vials for AG6/PH**
ATT100	Alkalinity Test Tablets, package of 100
ATT	Alkalinity Test Tablets, package of 1000
ATK	Alkalinity Test Kit: 1 vial and 20 tablets
CLK	Litho-Kit™ with syringe, thermometer and Standard Solution for model 512M5**
PLK	Litho-Kit™ with syringe, thermometer and Standard/Buffer Solutions for model M6/PH**
RPY	Replacement pH sensor for pDS Meter models AG6/PH, EP11/PH, M6/PH, T2/PH, T6/PH, DCH4 and DPH4
RE-10	Range Extender, x10

* Approximate dimensions: 8.5 L x 5.4 W x 4.5 D in./216 L x 137 W x 114 D mm
** Approximate dimensions: 13.6 L x 10 W x 5.4 D in./346 L x 254 W x 137 D mm

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