Hach Pocket Pro Manual de usuario
User Manual DOC022.53.80394
Pocket Pro™, Pro™+ pH
1
Specifications
Specifications are subject to change without notice.
Specification Details
Dimensions (W x D x H) 37 x 30 x 170 mm (1.45 x 1.18 x 6.69 in.)
Enclosure rating IP67
Weight 135 g (0.297 lb) with batteries
Power requirements (internal) AAA alkaline batteries (4x)
Battery life Pocket Pro: 450 hours
Pocket Pro+: 450 hours (200 hours with backlight on)
Operating temperature 0 to 50 °C (32 to 122 °F)
Storage temperature –20 to 60 °C (–4 to 140 °F)
Operating humidity 80% (non-condensing)
Altitude 2000 m (6562 ft)
Instrument range 0.0 to 14.0 pH
Resolution Pocket Pro: 0.1 pH; Pocket Pro+: 0.01 pH
Accuracy1Pocket Pro: ±0.1 pH; Pocket Pro+: ±0.02 pH
Calibration points Pocket Pro: 3 points (auto); Pocket Pro+: 3 points (auto) or 2 points (custom)
Note: Temperature calibration is not available.
Auto-recognition calibration standards USA: 4.01, 7.00, 10.01 pH; NIST: 4.01, 6.86, 9.18 pH
Certifications CE mark, FCC, Industry Canada, KC Mark, RCM, China RoHS
Warranty 6 months for Pocket Pro tester, 1 year for Pocket Pro+ tester and 6 months for
replacement sensor for manufacturing faults only. Damage from use is not covered.
General information
In no event will the manufacturer be liable for damages resulting from any improper use of product or failure to
comply with the instructions in the manual. The manufacturer reserves the right to make changes in this manual
and the products it describes at any time, without notice or obligation. Revised editions are found on the
manufacturer’s website.
Safety information
The manufacturer is not responsible for any damages due to misapplication or misuse of this product including,
without limitation, direct, incidental and consequential damages, and disclaims such damages to the full extent
permitted under applicable law. The user is soley responsible to identify critical application risks and install
appropriate mechanisms to protect processes during a possible equipment malfunction.
Please read this entire manual before unpacking, setting up or operating this equipment. Pay attention to all
danger and caution 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 this equipment in
any manner other than that specified in this manual.
1Based on a 3-point calibration and the calibration standards at the same temperature as the samples
measured. Also valid for 5.5 to 8.5 pH based on a 1-point calibration, 0.0 to 8.5 pH based on a 2-point
calibration with pH 7 and pH 4 standards, or 5.5 to 14 pH based on a 2-point calibration with pH 7 and pH
10 standards.
2
Use of hazard information
DANGER
Indicates a potentially or imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
Indicates a potentially or imminently hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that may result in minor or moderate injury.
NOTICE
Indicates a situation which, if not avoided, may cause damage to the instrument. Information that requires special emphasis.
Precautionary labels
Read all labels and tags attached to the instrument. Personal injury or damage to the instrument could occur if not
observed. A symbol on the instrument is referenced in the manual with a precautionary statement.
This symbol, if noted on the instrument, references the instruction manual for operation and/or safety information.
Electrical equipment marked with this symbol may not be disposed of in European domestic or public disposal
systems. Return old or end-of-life equipment to the manufacturer for disposal at no charge to the user.
Certification
Canadian Radio Interference-Causing Equipment Regulation, ICES-003, Class B:
Supporting test records reside with the manufacturer.
This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment
Regulations.
Cet appareil numérique de classe B répond à toutes les exigences de la réglementation canadienne sur les
équipements provoquant des interférences.
FCC Part 15, Class "B" Limits
Supporting test records reside with the manufacturer. The device complies with Part 15 of the FCC Rules.
Operation is subject to the following conditions:
1. The equipment may not cause harmful interference.
2. The equipment must accept any interference received, including interference that may cause undesired
operation.
Changes or modifications to this equipment not expressly approved by the party responsible for compliance could
void the user's authority to operate the equipment. This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a commercial environment.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful interference to radio communications. Operation of
this equipment in a residential area is likely to cause harmful interference, in which case the user will be required
to correct the interference at their expense. The following techniques can be used to reduce interference
problems:
1. Move the equipment away from the device receiving the interference.
2. Reposition the receiving antenna for the device receiving the interference.
3. Try combinations of the above.
3
Product overview
The Pocket Pro™ pH tester and Pocket Pro™+ pH tester measure the pH of general water samples. Refer to
Figure 1. These testers are waterproof and float.
Figure 1 Product features
1 Pocket Pro tester 4 Sensor 7 Lanyard attachment
2 Pocket Pro+ tester 5 Keypad 8 Pocket clip
3 Sensor cap 6 Display
Product components
Make sure that all components have been received. Refer to Figure 2. If any items are missing or damaged,
contact the manufacturer or a sales representative immediately.
Figure 2 Product components
1 Pocket Pro tester or Pocket Pro+ tester 3 Lanyard
2 AAA alkaline batteries (4x)
4
Install the batteries
CAUTION
Explosion hazard. Incorrect battery installation can cause the release of explosive gases. Be sure that the batteries
are of the same approved chemical type and are inserted in the correct orientation. Do not mix new and used
batteries.
WARNING
Fire hazard. Battery substitution is not permitted. Use only alkaline batteries.
Install the four AAA alkaline batteries in the tester. Refer to the illustrated steps in Figure 3.
Figure 3 Install the batteries
User interface and navigation
Display description
Figure 4 shows the measurements, calibration standard information and indicator icons shown on the display.
Table 1 gives descriptions of the icons.
5
Figure 4 Display overview
1 Calibration icon 5 Battery icon 9 Temperature
2 Lock icon 6 Parameter value 10 Custom standard (C1, C2)4
3 Sensor? icon 7 Calibration standard(s) measured for
last calibration (low, medium, high)2
4 Parameter 8 Calibration standard(s) expected3
Table 1 Display icons
Icon Description
Shows the battery power level. Flashes when the battery power is less than 10%.
Shows when the lock feature is on. When the lock feature is on, the parameter value on the display does not
change. Push to set the lock feature to on or off.
Sensor? Refer to Troubleshooting on page 10.
Shows when the tester is in calibration mode or when a calibration is due. If "?" shows next to the calibration icon,
the last calibration was not successful. When the ACAL setting is set to Yes (default), "?" shows next to the
calibration icon when a calibration is due.
Keypad description
Figure 5 and Figure 6 show the Pocket Pro and Pocket Pro+ keypads. Table 2 gives the key descriptions.
2Shows after auto calibration
3Shows during auto calibration
4Shows during custom calibration.
6
Figure 5 Keypad overview - Pocket Pro
1 Power key 2 Calibration/Settings key 3 Lock key
Figure 6 Keypad overview - Pocket Pro+
1 Power/Backlight key 2 Calibration/Settings key 3 Lock key
Table 2 Key functions
Key Description
Push and hold to set the power to on or off.
Push and hold to set the power to on or off.
Push to set the backlight to on or off. After 1 minute of no activity, the backlight switches off.
Push to start a calibration. To exit a calibration, push and hold.
Push and hold until "SEt" shows on the display to go to the settings menu. To exit the settings menu, push and hold
until "End" shows on the display. When in the settings menu, push to scroll through the settings.
Note: Power cannot be set to off while in settings or calibration mode.
Push to set the lock feature to on or off. When the lock feature is on, the lock icon shows and the parameter value on
the display does not change.
Calibration
CAUTION
Chemical exposure hazard. Obey laboratory safety procedures and wear all of the personal protective equipment
appropriate to the chemicals that are handled. Refer to the current safety data sheets (MSDS/SDS) for safety
protocols.
Calibrate the tester before initial use and when:
• Results drift
7
• Results are not accurate
• "?" shows next to the calibration icon
Calibrate the tester with the:
• Auto calibration procedure
• Custom calibration procedure5
Before the initial calibration and after a dry storage, soak the sensor for several minutes in the sample or tap
water.
Auto calibration
Items to collect: One, two or three auto-recognition calibration standards
1. Set the power to on.
2. Remove the cap from the sensor.
3. Push to go to calibration mode.
The auto-recognition standard(s) to measure shows on the bottom line.
Note: If "C1" shows on the bottom line, do not continue. Set the tester to auto calibration mode. Refer to Configure the
settings on page 9.
4. Rinse the sensor and cap with deionized water and blot dry.
5. Pour the auto-recognition standard shown into the cap to the fill line.
6. Put the sensor fully into the cap.
7. When the measurement is stable, push to save the measurement.
The measured value flashes three times.
8. Optional: To measure another calibration standard (maximum of 3), do steps 4–7 again.
9. Push and hold to go to continuous measurement mode. "END" shows on the display.
Note: "ECAL" shows on the display if the calibration was not successful. Refer to Troubleshooting on page 10.
10. Rinse the sensor and cap with deionized water and blot dry.
Custom calibration (Pocket Pro+ only)
Items to collect: One or two calibration standards or samples of known pH value
1. Set the power to on.
2. Remove the cap from the sensor.
3. Go to the settings menu. Make sure that the bUFr setting is set to Cus (custom standard). Refer to Configure
the settings on page 9.
4. Push to go to calibration mode.
"C1" shows on the bottom line.
5. Rinse the sensor and cap with deionized water and blot dry.
6. Pour the calibration standard or sample into the cap to the fill line.
7. Put the sensor fully into the cap.
8. When the measurement is stable, push and until the pH value of the calibration solution or sample
shows on the display.
9. Optional: To measure a second pH calibration standard or sample of known value, push , then do steps 5–8
again.
10. When the last measurement is stable, push and hold to save the calibration and go to continuous
measurement mode. "END" shows on the display.
Note: "ECAL" shows on the display if the calibration was not successful. Refer to Troubleshooting on page 10.
11. Rinse the sensor and cap with deionized water and blot dry.
5Custom calibration can only be done on the Pocket Pro+ tester.
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Measurement
Note: Air bubbles under the probe tip when submerged can cause slow stabilization or error in measurement. Shake the tester
from side to side to remove air bubbles.
1. Set the power to on.
2. Remove the cap from the sensor.
3. If the lock icon shows on the display, push to go to continuous measurement mode.
4. Rinse the sensor and cap with deionized water and blot dry.
5. Pour the water sample into the cap to the fill line.
6. Put the sensor fully into the cap. The measured value shows on the top line.
7. To keep the measured value on the display when the sensor is removed from the sample, push .
Note: The lock icon shows on the display when the measurement is stable.
8. To measure another sample, do steps 3–7.
9. When done with measurements:
a. Rinse the sensor and cap with deionized water.
b. Put the cap on the tester.
c. Set the power to off.
Advanced operation
Configure the settings
1. Push and hold until "SEt" shows on the display.
2. Push to scroll through the settings. The current value of the setting shows on the bottom line.
Option Description
Unit Select the temperature unit that shows on the display— C (Celsius) or F (Fahrenheit).
bUFr Select the pH buffers that are used for auto calibration—USA (4.01, 7.01, 10.01, default), NIST (4.01, 6.86,
9.18) or Cus (custom standard).
Note: "Cus" can only be selected on the Pocket Pro+ tester.
AOFF Set the auto-off feature to On (enable, default) or Off (disabled). When set to On, power is automatically set to
off after 8 minutes of no activity.
ACAL Enable or disable pH calibration reminder—Yes (enable, default) or No (disable). When set to Yes, "?" shows
next to the calibration icon on the pH screen when a pH calibration is due.
rSEt Change the settings to the factory defaults—Yes or No (default). When set to Yes, changes the settings to the
factory settings and default values.
3. To change the value of the setting, push or .
4. When done with changes, push and hold until "End" shows to go to continuous measurement mode.
Maintenance
CAUTION
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the document.
Clean the sensor
Clean the sensor when:
• "SENSOR?" shows on the display
• Stabilization is slow
• Results drift or are not accurate
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• Calibration failure occurs
1. Soak the sensor in the applicable cleaning agent. Refer to Table 3.
2. Rinse or soak the sensor in deionized water for 1 minute.
Table 3 Cleaning agents
Contaminant Cleaning agent Time
Grease, oils and fats Electrode cleaning solution 2 hours maximum
Mineral buildup 10% hydrochloric acid (HCl) solution 5 minutes maximum
Replace the batteries
When the battery icon flashes or the tester will not come on, replace all four batteries. Refer to Install the batteries
on page 5.
Replace the sensor
Note: Only Pocket Pro+ testers have replaceable sensors.
To replace the sensor, refer to the instructions supplied with the sensor.
Troubleshooting
Message Possible cause Solution
SENSOR? The calibration slope is ±10–15%. Gently clean the sensor. Refer to Clean the sensor
on page 9.
ECAL Calibration failure. The pH calibration
slope is greater than ±15%.
Gently clean the sensor. Refer to Clean the sensor
on page 9. Calibrate again. If calibration failure continues,
replace the tester or sensor as applicable.
"- - - -"
(top line)
The parameter value is not within the
measurement range of the tester. Refer to
Specifications on page 2.
Make sure that the value of the sample is within the
measurement range of the tester. Gently clean the sensor.
Refer to Clean the sensor on page 9. Calibrate as
necessary.
"- - - -"
(bottom line)
The temperature value is not within the
operating temperature range of the tester
or a temperature sensor failure occurred.
Refer to Specifications on page 2 for the
operating temperature range.
Make sure that the sample temperature is within the
operating temperature range of the tester. Contact
technical support as necessary.
Note: The tester can still be used if a temperature sensor failure
has occurred, but without automatic temperature compensation.
Battery icon
flashes
The batteries have less than 10% power
remaining.
Replace all four batteries. Refer to Install the batteries
on page 5.
Replacement parts and accessories
WARNING
Personal injury hazard. Use of non-approved parts may cause personal injury, damage to the instrument or
equipment malfunction. The replacement parts in this section are approved by the manufacturer.
Note: Product and Article numbers may vary for some selling regions. Contact the appropriate distributor or refer to the
company website for contact information.
Table 4 Replacement parts
Description Quantity Item no.
AAA alkaline batteries 4/pkg 4674300
Lanyard 1 201305
10
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