EUTECH INSTRUMENTS ALPHA CON 190 18 DIN CONDUCTIVITY CONTROLLERTRANSMITTER Manuel d'instructions Page 1

TechnologyMadeEasy...Instruction Manual αlpha pH 190 1/8 DIN pH / ORP Controller with Temperature display and Transmitter 68X276106 R

- 7 - 4 MEASUREMENT MODE The αlpha pH 190 controller is capable of taking pH (or ORP) measurement with Automatic (ATC) or Manual (MTC) Temperature

- 8 - Set Point 2 (SP2) adjustment mode This lets you adjust the pH (or ORP) value in Set Point 2. If this value is crossed, the set point relay 2

- 9 - 5 PASSWORD The Setup mode is to be accessed by entering a password code. The direct accessed Set Point adjustment mode (SP1 and SP2) and th

- 10 - P.P.000P.000P.010P.020P.011P.022P.011P.022

- 11 - 6 PH CALIBRATION IMPORTANT: When Calibration mode is entered, controller automatically goes into a “HOLD” mode where the 4-20 mA output fre

- 12 - NOTE: If the ATC mode has been selected and the Pt 100 is not connected or if it is broken, the pH display will flash. Under this condition, th

- 13 - If you are performing a 1-point calibration, press the ▲ and ▼keys together to return to measurement mode. If you are performing a two-point

- 14 - 7 ORP CALIBRATION IMPORTANT: When Calibration mode is entered, controller automatically goes into a “HOLD” mode where the 4-20 mA output freez

- 15 - 8 TEMPERATURE CALIBRATION IMPORTANT: When Calibration mode is entered, controller automatically goes into a “HOLD” mode where the 4-20 mA o

- 16 - 9 SETUP MODE 9.1 General Information IMPORTANT: When Setup mode is entered, the controller automatically goes into a “HOLD” mode where the 4-

Preface This manual serves to explain the use of the αlpha pH 190 controller/transmitter. This manual functions in two ways: first, as a step-by-st

- 17 - 9.2 Setup mode overview P1.0: Set Point 1 P1.1: select relay 1 set point value P1.2: select relay 1 as low or high set point P1.3: set

- 18 - 9.3 Set Point 1 – P1.0 Setup program P1.0 allows you to set parameters for relay 1. P1.1: select relay 1 set point value P1.2: select relay 1

- 19 - P1.3: Set Hysteresis value Hysteresis prevents rapid contact switching if your value is fluctuating near the set point. Once activated, the

- 20 - 9.4 Set Point 2 – P2.0 Setup program P2.0 allows you to set parameters for relay 2. P2.1: select relay 2 set point value P2.2: select relay 2

- 21 - P2.3: Set Hysteresis value Hysteresis prevents rapid contact switching if your value is fluctuating near the set point. Once activated, the

- 22 - 9.5 Configuration – P3.0 Setup program P3.0 let you configure controller parameters. P3.1: select pH or ORP mode of operation P3.2: select sym

- 23 - P3.3: Select temperature compensation This controller features selectable automatic temperature compensation (ATC) or manual temperature co

- 24 - 9.6 Viewing Calibration points: pH or ORP – P4.0 Setup program P4.0 lets you view the current points at which the controller is calibrated. Th

- 25 - 9.7 Viewing pH Electrode Data – P5.0 In pH mode, Program 5 has three “view only” options that lets you check the electrode parameters for d

- 26 - 9.8 Viewing ORP Electrode Data – P5.0 In ORP mode, Program 5 has two “view only” options that lets you check the electrode parameters for diag

TABLE OF CONTENTS 1 INTRODUCTION ...1 2 SAFETY INFORMATION

- 27 - 9.9 Controller Reset – P6.0 This parameter lets you reset the controller. All pH and ORP calibration data will be cleared, and all Setup pa

- 28 - 10 RELAYS The αlpha pH 190 features two SPDT non-powered relays; rated for 6A at 110 VAC, 250 VAC maximum. When your process exceeds the set pa

- 29 - 13 SPECIFICATIONS pH Range 0.00 to 14.00 pH Resolution/Accuracy 0.01 / ± 0.01 pH mV Range -999 to 1000 mV Resolution/Accuracy 1 / ± 2 mV

- 30 - 14 ACCESSORIES Product Description Code no. pH Combination Electrode with Pt 100 RTD and PMP EC-100GTSO-05B pH Combination Electrode with HF r

- 31 - Appendix 1: Asymmetrical / Symmetrical Mode The αlpha pH 190 controller can be operated in the asymmetrical or symmetrical modes (See Set u

- 32 - Symmetrical mode: For noisy electrical environments, the alpha pH 190 controller offers Symmetrical Mode operation. To take advantage of Symm

- 33 - Appendix 2: Simple Explanation on the Function of Hysteresis The controller relay activates when the set-point is reached. In the reverse

- 34 - Appendix 4: External Relays The relays on the αlpha pH 190 series controller are rated for 6 amps at 110 VAC and can be wired directly to your

- 35 - 15 GENERAL INFORMATION Warranty Eutech Instruments warrants this product to be free from significant deviations in material and workmanship

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- 1 - 1 INTRODUCTION Thank you for purchasing the αlpha pH 190 ⅛ DIN pH/ORP Controller. This controller is part of a series of quality process con

- 2 - 2 SAFETY INFORMATION The Eutech Controller/Transmitter shall be installed and operated only in the manner specified in the Instruction manual.

- 3 - 3 OVERVIEW 3.1 Front Panel The front panel consists of a 4-digit LED display, 8 LED annunciators and 4 keys. Annunciators 1. REL 1 Displa

- 4 - 3.2 Back Panel The back panel consists of four different connectors that can be used with removable terminal blocks (included): + 4 - 20 mA12

- 5 - 3.3 Wiring Caution: Ensure electrical mains are disconnected before proceeding. 1. Connect the power supply to the three-pin terminal blo

- 6 - 3.4 Panel-mounting the controller The supplied mounting hardware allows surface mounting to all panels and protective enclosures. Mounting cut-