H33.0.02.6C-09 Operating Manual GMH 3530 page 2 of 14 Index MEASURING DEVICE FOR PH / REDOX TEMPERATURE .................. 1 DESIGNATED USE ..............................2 GENERAL NOTE ..............................2 OPERATING AND MAINTENANCE ADVICE: ....................... 3 SAFETY REQUIREMENTS: ........................... 3 DISPLAY AND CONTROL ELEMENTS ......................... 4 ............................
H33.0.02.6C-09 Operating Manual GMH 3530 page 3 of 14 Operating and Maintenance Advice: a) When to replace battery: and ´bAt´ are shown in the lower display the battery has been used up and needs to be replaced. The de- vice will, however, operate correctly for a certain time.
H33.0.02.6C-09 Operating Manual GMH 3530 page 4 of 14 Display and control elements 5.1 Display elements Main display: pH-value, redox-value (mV, mV ), rH value or user prompt Display elements to show minimum/maximum/ memorized measuring value Display of measuring units...
H33.0.02.6C-09 Operating Manual GMH 3530 page 5 of 14 Configuration To configurate the device press -key for 2 seconds. Press the -key again to choose between the individual values that can be set. The individual values are changed by pressing the keys to leave configuration menu and save your settings.
-key to acknowledge input; device returns to measuring mode. Manual Setting of pH-Value for measuring function rH Running the GMH 3530 in the rH-measuring mode requires both temperature and pH value. Press shortly again to switch over to the pH-value entering mode: 0.0 …...
H33.0.02.6C-09 Operating Manual GMH 3530 page 7 of 14 9.1 How to prepare calibration solutions of standard series - Fill 2 plastic bottles with 100 ml distilled water each. - Open pH 7 capsule (green) carefully (turn one half of the capsule while pulling and make sure not to spill any solu- tion);...
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H33.0.02.6C-09 Operating Manual GMH 3530 page 8 of 14 2. Calibration point 1: ’Pt. 1’ Place electrode and temperature probe (if any) in the neutral solution stirring gently. The measuring value is stable as soon as the display stops blinking and the ’ok’-arrow is displayed in the left-hand corner of the display.
First put pH- and redox electrode and the temperature sensor in the solution, stirring it carefully. 1. How to measure pH-value: Connect the pH-electrode and the temperature sensor to the GMH 3530. Then set GMH3530 to pH-measuring mode and calibrate electrode, if necessary, (p.r.t.
H33.0.02.6C-09 Operating Manual GMH 3530 page 10 of 14 12 Error And System Messages Error or system Description / Reason Remedy messages General: Low battery voltage replace battery device will only continue operation for a short time Low battery voltage...
H33.0.02.6C-09 Operating Manual GMH 3530 page 11 of 14 Slope is too high - Electrode defective replace electrode - Buffer solution defective use new buffer solution m b a r m b a r Incorrect calibration temperature calibration can only be done at 0..60°C...
H33.0.02.6C-09 Operating Manual GMH 3530 page 12 of 14 14 The Redox-electrode The device has been optimized for electrodes using silver/silver chloride as reference system and the elec- trolyte KCl, 3mol/l. If other types are used, the measuring function mV will supply wrong measuring results.
H33.0.02.6C-09 Operating Manual GMH 3530 page 13 of 14 15 The serial interface All measuring data and settings of the device can be read and changed by means of the serial interface and a suita- ble electrically isolated interface adapter (GRS3100, GRS3105 or USB3100).
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