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Maintenance

39

7.4 Probe cleaning

7.4.1 ISFET non-glass probe cleaning and reconditioning

7.4.1.1

Cleaning the ISFET non-glass probes

1.

Regularly clean the ISFET probe with detergent (a few drops of dish detergent

in a cup of warm water).

2.

Rinse well with deionized water.

N O T I C E

Do not use metal objects such as pins or paperclips to clean the sensor. The sensor can be

permanently damaged with aggressive abrasion of the sensor surface.

Figure 5 Probe cleaning

N O T I C E

Do not use acetone, toluene, or other strong organic solvents on ISFET probes.

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Summary of Contents for H160

Page 1: ...DOC022 53 80058 Waterproof Handheld H160 and H170 USER MANUAL September 2009 Edition 1 Hach Company 2009 All rights reserved Printed in The U S A...

Page 2: ......

Page 3: ...3 4 Meter automatic shutoff time 17 4 3 5 Clearing calibration points 18 4 4 ERROR CODES 20 Section 5 pH Operations 21 5 1 Set the pH options 21 5 1 1 Set the pH resolution 0 1 pH or 0 01 pH 21 5 1 2...

Page 4: ...probe cleaning and reconditioning 39 7 4 1 1 Cleaning the ISFET non glass probes 39 7 4 1 2 Recondition the ISFET non glass probes 40 Section 8 Troubleshooting 41 8 1 Error codes 41 8 1 1 Low battery...

Page 5: ...ve built in temperature connectors for sensors The handheld series have ISFET 8 pin connectors BNC with phone jack temperature connectors 12 pin conductivity connectors Languages English Temperature c...

Page 6: ...on Up to five points Accuracy 1 full scale or 1 digit Resolution 0 01 ppm 0 1 ppm 1 ppm 0 01 ppt 0 1 ppt 1 ptt 0 1 mg l 1 mg l 0 01 g l 0 1 g l Range Autoranging 0 00 9 99 ppm 10 0 99 9 pm 100 999 ppm...

Page 7: ...statements Failure to do so could result in serious injury to the operator or damage to the equipment Make sure that the protection provided by this equipment is not impaired do not use or install th...

Page 8: ...hed simultaneously to the H170 model meters This is the safety alert symbol Obey all safety messages that follow this symbol to avoid potential injury If on the instrument refer to the instruction man...

Page 9: ...on for the H160 1 BNC connector 3 ISFET pH probe connector 2 3 5 mm phono jack 4 Connector dust cap Figure 2 Probe connections for the H170 meter 1 Conductivity probe connector 4 ISFET pH probe connec...

Page 10: ...t or dirty connections may cause unstable indications The meter is designed to use only one type of pH probe at a time 1 Make sure the meter power is off 2 Connect the ISFET probe to the ISFET pH prob...

Page 11: ...probe uses a 3 5 mm phono jack When a temperature sensor is connected the meter will Automatically Temperature Compensate ATC pH electrode indications To connect the temperature sensor 1 Always turn...

Page 12: ...Installation 10...

Page 13: ...Action H160 H170 Turn meter on and off Display pH Display mV Turns light on for two minutes Display TDS If a conductivity probe is not attached TDS mode is inactive Display conductivity If a conducti...

Page 14: ...display Only operates in measurement modes Used to confirm values and begin calibration Scroll values when in calibration mode View setup screens and set numeric values during setup Enter setup mode...

Page 15: ...in an LCD display as follows Figure 4 LCD display and features Item No Description H160 H170 1 ISFET pH probe indicator 2 The meter is in the pH measurement mode 3 The meter is in the conductivity mea...

Page 16: ...or salinity mode value is in mg L or g L 7 TDS or salinity value is ppm 8 TDS or salinity value is in ppt 9 The displayed value is a mV value 10 The displayed value is a pH value 11 the conductivity...

Page 17: ...3 Use the arrows keys to set the stabilization lock mode to off or on 4 Push ENTER to save changes and return to setup mode 5 Push SETUP to return to setup mode without saving changes 4 3 2 Set the t...

Page 18: ...to cancel any changes and return to the setup mode 4 3 3 Turn the sound ON OFF Sounds will occur to alert the user Three short beeps Any time measurement stability is reached during calibration mode r...

Page 19: ...up mode without saving changes Note Pushing the arrow keys will display ON and OFF 4 3 4 Meter automatic shutoff time The meter will shutoff automatically to conserve battery power after a predetermin...

Page 20: ...c keypad or the arrow keys to set the shutoff time in minutes Set to 000 for continuously on 5 Push ENTER to save changes and return to setup mode 6 Push SETUP to return to setup mode without saving c...

Page 21: ...sh ENTER 4 The meter will prompt if the user wants to clear all calibration points The default is No 5 Push the arrow keys to display Yes and then Push ENTER to clear 6 Push SETUP to return to setup m...

Page 22: ...other error causing condition Push SETUP or the pH COND TDS SAL key To override an error code not recommended 1 Push ENTER 2 Push the up arrow for display to YES This indicates the option to perform...

Page 23: ...p screen is displayed 3 Push ENTER The display will show the pH resolution Use the arrow keys to set the pH resolution between 0 01 and 0 1 4 Push ENTER to save changes and return to setup mode Push S...

Page 24: ...mode Push SETUP to return to setup mode without saving changes 5 1 3 Set the pH calibration method The meter allows the user to define which pH buffers are to be used and in which order The default i...

Page 25: ...calibration point 5 After pushing ENTER on the last calibration buffer the change will be saved and the meter will return to the setup mode Push SETUP to return to setup mode without saving changes 6...

Page 26: ...essary To set the manual temperature compensation 1 Push SETUP then push PH to put in the pH setup mode 2 Push the arrow keys until the manual temp screen is displayed Table 1 pH values of buffers at...

Page 27: ...ode Push SETUP to return to setup mode without saving changes 5 3 pH calibration The H160 and H170 meters accept one two or three calibration points The meter defaults to a 2 point calibration To cali...

Page 28: ...incorrect push the arrow keys to select another buffer 6 Repeatedly pushing or will display the choices of availability buffers 1 68 4 01 6 86 7 00 91 8 10 01 12 45 if on CAL 2 or CAL 3 the meter omit...

Page 29: ...change value Push PH to accept a 1 point calibration and return to the pH measurement mode 10 If ENTER is selected the buffer value will start flashing until calibration is complete 11 If the meter is...

Page 30: ...ush the arrow keys to change the value then press the pH to accept just a 2 point calibration and display the pH measurement mode 2 If ENTER is selected in the set up for additional calibration point...

Page 31: ...tored conductivity calibration points 3 Push ENTER The first calibration point currently being used is shown 4 Push the arrow keys to scroll to view other currently used calibration values 6 1 2 Set t...

Page 32: ...mode without saving changes 6 1 3 Set the conductivity probe cell constant This screen displays the cell constant of an attached conductivity probe The cell constant of the conductivity probe is autom...

Page 33: ...tor TDS values are related to conductivity The operator can calibrate using a TDS standard or calibrate using conductivity standards then program the meter with a conversion factor The conversion fact...

Page 34: ...o setup mode without saving changes 6 2 2 Set TDS units TDS can be displayed in metric units mg L g L or ppm ppt 1 Push SETUP then push TDS 2 Push the arrow keys until the TDS units screen is displaye...

Page 35: ...derived from conductivity The meter can be calibrated with up to three calibration points If a calibration point is greater than 20 of a previously stored calibration point the previously stored point...

Page 36: ...y or TDS standard and push ENTER The main display and the wait icon will flash 4 At any time during the calibration the user may exit the calibration mode by pushing the COND TDS or SETUP key The mete...

Page 37: ...eter will display the slope as compared to the nominal sensitivity for a probe of that cell constant and the total number of conductivity and TDS calibration points stored in the meter Note Number of...

Page 38: ...Conductivity TDS Operations 36...

Page 39: ...starch protein or other materials to remain on the probe tip after use Do not use a sharp metal object needle pin etc to clean the sensor surface Do not take readings in direct sunlight Direct sunligh...

Page 40: ...epeat the calibration 7 2 ISFET non glass probe maintenance Clean the probe regularly with a toothbrush and mild detergent Store the probe dry with the black protective cap covering the probe tip No e...

Page 41: ...th detergent a few drops of dish detergent in a cup of warm water 2 Rinse well with deionized water NOTICE Do not use metal objects such as pins or paperclips to clean the sensor The sensor can be per...

Page 42: ...age can crystallize the KCl gel at the reference junction 1 Heat pH 7 00 buffer to between 45 C and 60 C 115 F and 140 F 2 Soak the probe for 2 minutes 3 Place the probe in room temperature pH 7 00 bu...

Page 43: ...h solution A stable reading may not be possible pH or temperature of solution is changing A stable reading is not possible until the pH and temperature is constant Trouble calibrating The display does...

Page 44: ...e slope error The E04 error is displayed if the glass electrode slope is less than 85 or over 102 of the 59 16 mV per pH unit A slope error indicates a poor pH electrode condition Follow the cleaning...

Page 45: ...ventually be depleted to the level where the instrument cannot reliably be used without the possibility of measurement errors When the batteries are depleted to the point that reliable measurement can...

Page 46: ...Troubleshooting 44...

Page 47: ...icro pH Probe 1 PH37 SS PH47 SS Stainless Steel pH Probe for NMR Tubes 1 PH47 SS PH57 SS Stainless Steel Heavy Duty Piercing Tip Micro pH Probe 1 PH57 SS Conductivity Probes General Purpose Conductivi...

Page 48: ...ivity Standard Solution 500 mL 2971849 1000 S cm Conductivity Standard Solution 500 mL 1440049 10 000 S cm Conductivity Standard Solution 500 mL 2972249 53 mS cm Conductivity Standard Solution of 35 p...

Page 49: ...www hach lange co uk HACH LANGE LTD Unit 1 Chestnut Road Western Industrial Estate IRL Dublin 12 Tel 353 0 1 46 02 5 22 Fax 353 0 1 4 50 93 37 info hach lange ie www hach lange ie HACH LANGE GMBH H t...

Page 50: ...06 1 225 7784 info hach lange hu www hach lange hu HACH LANGE S R L Str C minului nr 3 Sector 2 RO 021741 Bucure ti Tel 40 0 21 205 30 03 Fax 40 0 21 205 30 03 info hach lange ro www hach lange ro HA...

Page 51: ...constant 30 K keypad description 11 21 M maintenance cleaning and storage 37 probe 37 measurements salinity conductivity 33 P pH set manual temperature 24 set resolution 21 power low indicator 14 S s...

Page 52: ...Index 50...

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