JENCO 6177B User manual

Operation Manual
MODEL 6177B
Microcomputer Based
pH/ORP/ Temperature
Benchtop Meter
6177B

1
CONTENTS
GENERAL INTRODUCTION 2
INITIAL INSPECTION 2
POWER INPUT 3
INSTALLING THE BATTERIES 3
CONNECTOR 4
DISPLAY & KEYS FUNCTIONS 4
A. Display 4
B. Keys 5
OPERATIONAL PROCEDURES 6
A. Buffer Set Selection 6
B. pH Calibration 6
C. pH Measurements 10
D. Temperature Measurements 11
E. mV offset 11
F. mV (Rmv) Measurements 12
G. pH Buffers 13
BLUETOOTH WIRELESS TRANSMISSION
FUNCTION 14
FCC WARNING STATEMENT 15
ERROR DISPLAYS AND TROUBLESHOOTING 16
SPECIFICATIONS 17
WARRANTY 18

2
GENERAL INTRODUCTION
Thank you for selecting the 6177B meter. The 6177B is a precision
tool that measures pH, mV (Rmv) and temperature. A built-in
microprocessor stores, calculates and compensates for all
parameters related to pH determinations including pH electrode
temperature characteristics, electrode slope deviations, offset and
buffer solutions. The 6177B is a 5th generation pH / ORP /
temperature Bluetooth benchtop meter with iOS and Android tablet
connectivity.
This meter has a waterproof IP54 case. The mechanical keys are
highly reliable with tactile and audio feedback. It is powered by six
AAA-size alkaline batteries or with a UL / CE approved AC adapter
(OUTPUT:DC 9 V). The meter also displays a “BAT” message when
the batteries are in need of replacement. Re-calibration is not
required when power is restored.
The front of the meter has a large LCD that displays pH , mV , Rmv
and temperature simultaneously along with user prompts and mode
indicators. The unit prompts the user through calibration and
measurement procedures.
An AUTOLOCK feature for both pH and mV（RmV）measurements
enables the unit to automatically sense the end point and “LOCK”
the display to indicate the end point value of a measurement.
AUTOLOCK and user prompts help eliminate most errors in
determining pH and mV values, resulting in precise, repeatable and
error-free measurements. The 6177B can also be used in
non-AUTOLOCK mode.
The model 6177B is available with pH, ORP and ATC (Automatic
Temperature Compensation) probes. Other features include up to 5
points calibration for pH and 1 point calibration for ORP, electrode
offset recognition, electrode slope recognition, electrode efficiency
display, built-in buffer coefficients, automatic or manual temperature
compensation and 50/60 Hz AC noise rejection. This meter is
user-friendly for laboratory application.
INITIAL INSPECTION
Carefully unpack the unit and accessories. Inspect for damages
made in shipment. If any damage is found, notify your JENCO
representative immediately. All packing materials should be saved
until satisfactory operation is confirmed.

3
POWER INPUT
The model 6177B can be powered by an UL / CE approved 100 to
240 VAC adaptor as well as 6 “AAA” alkaline batteries. Check the
label on the AC adaptor supplied with the instrument to make sure
that the AC line voltage is correct. If the wrong AC adaptor is
supplied, notify your JENCO representative immediately.
INSTALLING THE BATTERIES
To insert the batteries into the meter, follow the procedure outlined
below.
1. Use a Philip screw driver and unlock the battery cover by
turning the screw driver in the counter clockwise direction.
After unlocking the screw, take off the battery cover (Fig.1)
2. Replace the old batteries with new ones and install them on
the correct polarity position.
3. Put the battery cover back on the instrument. Use a Philip
screw driver and turn the screw in the clockwise direction to
lock the battery cover.
Figure 1: Battery compartment

4
CONNECTOR
1 2 3
Figure 2: Connector
1. pH/ORP connector (BNC connector)
2. ATC connector (8 PIN connector)
3. AC adaptor input connector
DISPLAY & KEYS FUNCTIONS
A. Display
1
2
3
4
5
6
7
9
10
12
11
8
Figure3: Active LCD screen
1. WAIT-
This will be displayed when the
unit is still waiting for a stable
reading or end point sensing.
7. AUTO-
AUTOLOCK mode indicator.
2. BAT-
Low battery indicator.
8. Buffer selection-
This indicator will flash if the
unit is not yet calibrated. This
indicator will remain lit-up if
the unit has been calibrated.

5
3. pH-
Unit and mode indicators.
9. LOCK-
This will indicate that the
reading is frozen during
AUTOLOCK mode.
4. mV (RmV)-
Unit and mode indicators.
10. EFF-
This will be displayed if the
user is viewing the efficiency
of the electrode. It is
recommended to use a new
electrode when the efficiency
value is less over than 75%.
5. ATC/MAN-
ATC indicator will be displayed
if a temperature probe is
connected otherwise the MAN
indicator will be displayed.
11. MAIN DISPLAY-
For pH, mV and probe
efficiency values
6. CAL-
This will be displayed when the
unit enters into the calibration
mode.
12. SECONDARY DISPLAY-
For temperature in ℃.
B. Keys
Mea.
Eff.
Stand
Slope
Mode
Clear
On/Off-
Press and hold this key for 2 seconds to power on
and shut off the meter. 0 second to turn Bluetooth on
or off
Mea.
Eff.
Stand
Slope
Mode
Clear
Mode-
Selects display mode. Pressing this key changes the
display sequentially to display pH-AUTOLOCK, mV
(RmV)-AUTOLOCK, pH , mV (RmV). The calibration
values will not be affected by changing the display
modes. In “calibration”,press “Mode” key to exit
calibration mode.
Mea.
Eff.
Stand
Slope
Mode
Clear
Clear-
It is used to clear the unit when error signal appears.
It clears all calibration values stored in the internal
memory.
Under normal use the key will not be activated unless
pressed and held for 5 seconds to prevent accidental
erasing stored memory.
In pH mode or mV (Rmv) mode, when the “Clear”
key is pressed for 5 seconds, all segments of the
LCD will be on. After 2 seconds the unit will enter
the pH-AUTOLOCK mode or mV (RmV)-AUTOLOCK
mode. In the pH mode, The “AUTO” and “CAL” icons
will be displayed and one of the buffer values in the
pre-selected buffer set shall begin to flash. This

6
means that the unit is un-calibrated and requires new
pH calibration before use. In the ORP mode, the
“AUTO” and “mV” icons will be displayed. This
means that the unit is un-calibrated and requires new
ORP calibration before use.
Up/Down-
In the pH/ORP measure mode, these two keys are
used to manually enter the temperature values. They
have no effect on the unit when operating in ATC
mode.
In the ORP calibration mode, these two keys are
used to adjust the RmV display value.
Stand
Stand/Slope/Enter-
The “Stand” and “Slope/Enter” keys are used for
pH and ORP calibration. Press and hold the “Stand”
key while turning on the device power, will switch the
pH buffer set.
Mea.
Eff.
Stand
Slope
Mode
Clear
Mea./Eff.-
1. The key is used to bring the unit out of the AUTO
condition when operating in the pH-AUTOLOCK or
mV (RmV) - AUTOLOCK mode.
2. In the pH measure mode, press and hold this key
for 5 seconds, the LCD will display the efficiency of
the electrode and the offset value.
3. In the ORP measure mode, press and hold this
key for 5 seconds, the LCD will display the offset
value of the electrode.
OPERATIONAL PROCEDURES
A. pH Buffer Set Selection
The 6177B meter has two buffer sets: 1.68, 7.00, 4.01, 10.01, 12.46
pH and 1.68, 6.86, 4.00, 9.18, 12.46 pH.
To change the buffer set, turn off the unit, then press and hold the
“Stand” key while turning on the unit again.
[Note: There is no need to repeat this procedure every time the unit
is power up unless one decides to change the buffer settings.]
B. pH Calibration
The 6177B uses up to 5 points calibration.
[Note: If the device requires to calibrate more than one calibration
point, the first calibration point must be 6.86 / 7.00 pH.]
Slope
Enter
Mea.
Eff.
Stand
Slope
Mode
Clear
Mea.
Eff.
Stand
Slope
Mode
Clear

7
a. Calibration with an ATC/Temp probe in the pH-AUTOLOCK
mode.
1. Turn the unit on. In pH mode, press “Clear” key for 5
seconds, all LCD elements will lit up. The meter clears all
calibration values stored in internal memory.
2. Connect the pH electrode to the BNC connector and the
ATC/Temp probe to the ATC/Temp connector of the unit:
“ATC” icon will lit up. “pH” icon and “AUTO” icon will lit up.
The "CAL" icon begins to flash.
3. Rinse the pH and ATC/Temp probes in distilled water and
immerse them in the first buffer solution. Allow temperature
reading to stabilize, then press and hold “Stand” key for 2
seconds to calibrate. The “WAIT” icon will flash until the unit
detects a stable reading. Once the unit calibrates the first
point, the selected buffer will lit up while two other selectable
buffers start to flash. The unit is ready to be sloped at the
second buffer.
[Note: If the first buffer solution is 7.00 or 6.86 pH, at this
moment, press the “Mode” key. The unit will exit the
calibration mode. Single point calibration is complete.
If the first buffer solution is 1.68,4.00, 4.01, 9.18 , 10.01 or
12.46 pH, at this moment, the unit will automatically exit the
calibration mode. Single point calibration is complete.]
4. Rinse the pH and ATC/Temp probe in distilled water and
immerse them in the second buffer solution (either 4.00 / 4.01
pH or 9.18 / 10.01 pH corresponding to the flashing number
on display). Allow temperature reading to stabilize, then press
“Slope/Enter” key to calibrate. The “WAIT” icon will flash
until the unit detects a stable reading. Once the unit calibrates
the second point, the selected two buffers lit up and the
remaining buffer starts to flash. The unit is ready to be sloped
at the third buffer.
[Note: At this moment, press the “Mode” key, the unit will
exit the calibration mode. Dual point calibration is complete.]
5. The third point, the fourth point and the fifth point are the
same as the second point calibration. When the unit
completed the fifth point calibration, press the “Mode” key
and exit the calibration.
6. The unit calculates and compensates for the pH electrode
slope deviation corresponding to the values of the calibrated
buffers. After calibration, press and hold “Mea./Eff.” key for
about 5 seconds to display the new electrode efficiency and
offset.

8
b. Calibration with manual temperature compensation in the
pH-AUTOLOCK mode.
1. Turn the unit on. In pH mode, press “Clear” key for 5 seconds,
all LCD elements will lit up. The meter clears all calibration
values stored in internal memory.
2. Connect the pH electrode to the BNC connector of the unit,
“MAN” icon will lit up. “pH” icon and “AUTO” icon will lit up. The
"CAL" icon will begin to flash.
3. Rinse the pH probes in distilled water and immerse it in the
first buffer solution. Adjust the temperature reading to that of the
first buffer using the “Up” or “Down” keys (0.0 to 60.0 ℃).
Then press and hold “Stand” key for 2 seconds to calibrate.
The “WAIT” icon will flash until the unit detects a stable
reading.
4. Once the unit calibrates the first point, the selected buffer
remains lit up while two other selectable buffers start to flash.
The unit is ready to be sloped at the second buffer.
[Note: If the first buffer solution is 7.00 or 6.86 pH, at this
moment, press the “Mode” key, the unit will exit the
calibration mode. Single point calibration is complete.
If the first buffer solution is 1.68, 4.00, 4.01, 9.18, 10.01 or
12.46 pH, at this moment, the unit will automatically exit the
calibration mode. Single point calibration is complete.]
5. Repeat steps 4 of “Calibration with an ATC/Temp probe in
the pH-AUTOLOCK mode” for 2 to 5 points calibration.
c. Calibration with an ATC/Temp probe in the pH NON-
AUTOLOCK mode.
1. Turn the unit on. In pH mode, press “Clear” key for 5 seconds,
all LCD elements will lit up. The meter clears all calibration
values stored in internal memory.
2. Connect the pH electrode to the BNC connector and the
ATC/Temp probe to the ATC/Temp connector of the unit:
“ATC” icon will lit up. Press “Mode” key to select “pH” mode.
“pH” icon is on. The "CAL" icon will begin to flash.
3. Rinse the pH and ATC/Temp probes in distilled water and
immerse them in the first buffer solution. Allow temperature
reading to stabilize, then press and hold “Stand” key for 2
seconds to calibrate, the unit immediately calibrates the first
point, the selected buffer remains lit up while two other
selectable buffers start to flash. The unit is ready to be sloped
at the second buffer.

9
[Note: If the first buffer solution is 7.00 or 6.86 pH, at this
moment, press the “Mode” key, the unit will exit the calibration
mode. Single point calibration is complete.
If the first buffer solution is 1.68, 4.00, 4.01, 9.18, 10.01 or
12.46 pH, at this moment, the unit will automatically exit the
calibration mode. Single point calibration is complete.]
4. Rinse the pH and ATC/Temp probe in distilled water and
immerse them in the second buffer solution (either 4.00/4.01
pH or 9.18/10.01 pH corresponding to the flashing number on
display). Allow temperature reading to stabilize, then press
“Slope/Enter” key to calibrate. The unit immediately
calibrates the second point, the selected two buffers lit up and
the remaining buffer starts to flash. The unit is ready to be
sloped at the third buffer.
[Note: At this moment, press the “Mode” key, the unit will
exit the calibration mode. Dual point calibration is complete.]
5. The third point, the fourth point and the fifth point are the
same as the second point calibration. When the unit
completed the fifth point calibration, press the “Mode” key
and exit the calibration.
6. The unit calculates and compensates for the pH electrode
slope deviation corresponding to the values of the calibrated
buffers. After calibration, press and hold “Mea./Eff.” key for
about 5 seconds to display the new electrode efficiency and
offset.
d. Calibration with manual temperature compensation in the
pH NON-AUTOLOCK mode.
1. Turn the unit on. In pH mode, press “Clear” key for 5 seconds,
all LCD elements will lit up. The meter clears all calibration
values stored in internal memory.
2. Connect the pH electrode to the BNC connector of the unit,
“MAN” icon will lit up. Press “Mode” key to select “pH” mode.
“pH” icon is on. The "CAL" icon will begin to flash.
3. Rinse the pH probes in distilled water and immerse it in the
first buffer solution. Adjust the temperature reading to that of the
first buffer using the “Up” or “Down” keys (0.0 to 60.0 ℃)
before pressing “Stand” key. Then press and hold “Stand”
key for 2 seconds to calibrate. The unit immediately calibrates
the first point, the selected buffer remains lit up while the
remaining buffers start to flash. The unit is ready to be sloped
at the second buffer.
[Note: If the first buffer solution is 7.00 or 6.86 pH, at this

10
moment, press the “Mode” key, the unit will exit the calibration
mode. Single point calibration is complete.
If the first buffer solution is 1.68, 4.00, 4.01, 9.18, 10.01 or
12.46 pH, at this moment, the unit will automatically exit the
calibration mode. Single point calibration is complete.]
4. Repeat steps 4 of “Calibration with an ATC/Temp probe in
the pH NON- AUTOLOCK mode” for 2 to 5 points calibration.
C. pH Measurements
To take pH measurements, 6177B must be calibrated before
first use.
a. Measurement with an ATC/Temp probe in the pH-
AUTOLOCK mode.
1. Connect the pH electrode to the BNC connector and the
ATC/Temp probe to the ATC/Temp connector of the unit. The
“ATC” icon will lit up.
2. Press “Mode” key until “pH” icon and “AUTO” icon lit up.
3. Rinse the pH electrode and ATC/temp probe with distilled
water and immerse in the sample to be measured. Remove
any air bubbles trapped around the probe by shaking or
stirring the probe.
4. Press the “Mea./Eff.” key. The “WAIT” icon will start flashing.
The unit is waiting for a stable reading. The display will track
the pH value as sensed by the pH electrode and the
ATC/Temp probe.
5. When the “WAIT” icon disappears, the reading is then “LOCK”
and will not respond to further changes from the sample. The
pH value shown is the pH value of the sample at the displayed
sample temperature.
[Note: For samples that are inherently unstable, the unit will
not AUTOLOCK. In this case, use the pH NON- AUTOLOCK
mode for measurements.]
b. Measurement with manual temperature compensation in
the pH-AUTOLOCK mode.
1. Connect the pH electrode to the BNC connector of the unit.
The “MAN” icon will lit up. Set unit to display the sample
temperature by pressing the “Up” and “Down” keys (-10.0 to
120.0 ℃).
2. Repeat steps 2 to 5 of “Measurement with an ATC/Temp

11
probe in the pH- AUTOLOCK mode”.
c. Measurement with an ATC/Temp probe in the pH NON-
AUTOLOCK mode.
1. Connect the pH electrode to the BNC connector and the
ATC/Temp probe to the ATC/Temp connector of the unit. The
“ATC” icon will lit up.
2. Press “Mode” key until “pH” icon lit up.
3. Rinse the pH electrode and ATC/temp probe with distilled
water and immerse in the sample to be measured.
4. Allow sufficient time for the display to stabilize. The instrument
will display the pH value of the sample at the displayed sample
temperature.
d. Measurement with manual temperature compensation in
the pH NON-AUTOLOCK mode.
1. Connect the pH electrode to the BNC connector of the unit.
The “MAN” icon will lit up. Set unit to display the sample
temperature by pressing the “Up” and “Down” keys (-10.0 to
120.0 ℃).
2. Repeat steps 2 to 4 of “Measurement with an ATC/Temp
probe in the pH NON- AUTOLOCK mode”.
D. Temperature Measure
The 6177B can measure temperature independently with the
ATC / temp probe without using the pH electrode. Place the
ATC / temp probe in the sample. The unit will display the
measured temperature.
E. mV Offset
1. Turn the unit on. In mV mode, press “Clear” key for 5
seconds, all LCD elements will lit up. The meter clears all
calibration values stored in internal memory.
2. Connect the ORP electrode to the BNC connector of the unit,
“MAN”, “mV” and “AUTO” icons will lit up.
3. Rinse the ORP probe in distilled water and immerse it in the
standard solution. Then press and hold “Stand” key for 2
seconds to calibrate. The “CAL” & “RmV” icons will lit up.
According to the mV (RmV) value displayed, press the “Up”
and “Down” keys to adjust the display value to the same

12
value as the standard solution. Press the “Slope/Enter” key
to save and complete the calibration.
F. mV (RmV) Measurements
a. Measurement in the mV (RmV)-AUTOLOCK mode.
1. Connect the optional combination ORP electrode to the BNC
connector of the unit.
2. Press “Mode” key until “mV” or “RmV” icon and “AUTO” icon
lit up.
3. Rinse electrode with distilled water and immerse it in sample to
be measured.
4. Press the “Mea./Eff.” key. The “WAIT” icon will start flashing.
The unit is waiting for a stable reading. The display will track
the mV (Rmv) value as sensed by the ORP electrode
5. When the “WAIT” icon disappears, the reading is then “LOCK”
and will not respond to further changes from the sample. The
mV (RmV) value is the sample reading.
[Note: For samples that are inherently unstable, the unit will
not AUTOLOCK. In this case, use the mV (RmV) NON-
AUTOLOCK mode for measurements.]
b. Measurement in the mV (RmV) NON-AUTOLOCK mode.
1. Connect the optional combination ORP electrode to the BNC
connector of the unit.
2. Press “Mode” key until “mV” or “RmV” icon lit up.
3. Rinse electrode with distilled water and immerse it in sample to
be measured.
4. Allow sufficient time for the display to stabilize. The instrument
will display the mV (RmV) value of the sample.

13
G. pH Buffers
The temperature coefficient of pH calibration buffers 1.68, 4.00,
4.01, 6.86, 7.00, 9.18 , 10.01 and 12.46 pH are stored inside
the instrument. The buffers used to calibrate the instrument
must exhibit the same temperature characteristics as the
stored values.
Temperature coefficient of the pH buffers
°C
1.68
4.00
6.86
9.18
4.01
7.00
10.01
12.46
0
1.67
4.01
6.98
9.46
4.01
7.11
10.32
13.42
5
1.67
4.00
6.95
9.39
4.01
7.08
10.25
13.21
10
1.67
4.00
6.92
9.33
4.00
7.06
10.18
13.01
15
1.67
4.00
6.90
9.28
4.00
7.03
10.12
12.80
20
1.68
4.00
6.88
9.23
4.00
7.01
10.06
12.64
25
1.68
4.00
6.86
9.18
4.01
7.00
10.01
12.46
30
1.68
4.01
6.85
9.14
4.01
6.98
9.97
12.30
35
1.69
4.02
6.84
9.10
4.02
6.98
9.93
12.13
40
1.69
4.03
6.84
9.07
4.03
6.97
9.89
11.99
45
1.70
4.04
6.83
9.04
4.04
6.97
9.86
11.84
50
1.71
4.06
6.83
9.02
4.06
6.97
9.83
11.71
55
1.72
4.07
6.83
8.99
4.08
6.97
9.80
11.57
60
1.72
4.09
6.84
8.97
4.10
6.98
9.78
11.45
[Note: The actual reading of the instrument can differ from the
values shown by ±0.01 pH ]

14
BLUETOOTH WIRELESS TRANSMISSION FUNCTION
Description
The 6177B is a single parameter pH / ORP / temperature
Bluetooth benchtop meter that pairs with iOS and Android
tablets to enable the same user experience as users’ favorite
apps while providing graphing, guided calibration procedures,
GLP-compliant data storage, data sharing, cloud data storage
and user-defined compliance policies.
a. Prepare 6177B for Bluetooth connection.
Press the “On/Off” key for 2 second to turn on the 6177B
device, then press and release the On/Off button again to turn
on 6177B Bluetooth connection. The Bluetooth light on the
6177B will fast blink and it is ready for Bluetooth connection.
.
b. Pair the 6177B to your tablet.
Tap on the “Settings” tab at the lower right of the app
screen.
Tap on the “Pair” button.
The tablet shall search any nearby JENCO Bluetooth
devices within close proximity. When the app discovers
and displays your 6177B, tap the “Connect” button.
Once the 6177B is connected to the tablet, the device
Bluetooth light will blink slowly.
After the app has been installed, calibrate your 6177B to
ensure the best reading quality.
Troubleshoot
The app is running and the 6177B is on, but for some
reason they won't connect.
If the tablet’s Bluetooth is turned on, and the app continues to
display the reconnecting indicator message, close the app and
launch it again to force the app to connect to the 6177B.
Cannot put the meter into pairing mode
One 6177B can be paired to only one app at a time. To put an
already - paired meter into pairing mode, you must first close
the app it is paired to.

15
FCC WARNING STATEMENT
Changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to
operate the equipment
NOTE: THE MANUFACTURER IS NOT RESPONSIBLE FOR
ANY RADIO OR TV INTERFERENCE CAUSED BY
UNAUTHORIZED MODIFICATIONS TO THIS
EQUIPMENT.SUCH MODIFICATIONS COULD VOID THE
USER’S AUTHORITY TO OPERATE THE EQUIPMENT.
This device complies with Part 15 of the FCC Rules. Operation
is subject to the following two conditions: (1) this device may
not cause harmful interference, and (2) this device must
accept any interference received, including interference that
may cause undesired operation.
This equipment complies with FCC RF radiation exposure
limits set forth for an uncontrolled environment. This device
and its antenna must not be co-located or operating in
conjunction with any other antenna or transmitter. To comply
with FCC RF exposure compliance requirements, this grant is
applicable to only Mobile Configurations. The antennas used
for this transmitter must be installed to provide a separation
distance of at least 20 cm from all persons and must not be
co-located or operating in conjunction with any other antenna
or transmitter.

16
ERROR DISPLAYS AND TROUBLESHOOTING
[Note: If the meter still does not perform normally after the above
measures are taken, call JENCO representative.]
Main
Display
Possible cause(s)
Corrective Action(s)
"Er1"
1. “Stand” was pressed
before the electrode and
ATC/Temp probe settled
to within +/-1.00 pH of the
buffer value.
2. pH electrode offset is
greater / less than +/-1.00
pH.
3. pH electrode is faulty.
1. Press “Clear” key, allow
sufficient time for the
electrode and ATC / Temp
probe to stabilize, re-press
“Stand” key to start the
calibration procedure.
2. Replace the buffer and /or
the pH electrode. Press
“Clear” key to recalibrate
meter.
3. Replace electrode.
"Er2"
1. “Slope/Enter” was
pressed before the
electrode and ATC/Temp
probe settled to within
30% of the buffer value.
2. Buffer 1.68, 4.00, 4.01,
9.18, 10.01 and 12.46 pH
is not correct.
3. pH electrode slope is off
by more than 30% of
ideal slope.
1. Allow sufficient time for the
electrode and ATC/Temp
probe to stabilize, re-press
“Slope/Enter” key to
continue the calibration
procedure.
2. Check if the correct buffer
is used.
3. Replace the buffer and /or
the pH electrode. Press
“Clear” key to recalibrate
meter.
"Er3"
In pH calibration mode
Temperature is out of the
0.0 to 60.0 °C range.
Bring the pH buffer
temperature within range.
"over"
/ ”undr”
1. Measured pH is out of
the -2.00 to 16.00 pH range.
2. Measured mV (RmV) is
out of the –1999.9 to
1999.9 mV range.
3. Measured temperature is
out of the -10.0 to
120.0 °C range.
1. Bring sample pH into the
correct measuring range.
2. Bring sample ORP into the
correct measuring range.
3. Bring sample temperature
into the correct measuring
range.

17
SPECIFICATIONS
Display
Range
Resolution
Accuracy
pH
-2.00 to 16.00 pH
0.01 pH
±0.01 pH
mV (RmV)
-1999.9 to 1999.9 mV
0.1 mV
±0.05% F.S.
Temperature
-10.0 to 120.0 °C
0.1 °C
±0.2 °C
pH buffer recognition
1.68, 7.00, 4.01, 10.01,12.46
pH or 1.68, 6.86, 4.00, 9.18,
12.46 pH
pH Temperature compensation
AUTO/MAN -10.0 to 120.0 °C
pH Buffer Temperature range
0 to 60.0 °C
pH calibration
Up to 5 points
ORP calibration
1 point Offset ±150 mV
Input impedance
>1 x 1012 Ω
Connectivity
Bluetooth
Temperature sensor
Thermistor, 10 k Ω at 25 °C
Power
6 X 1.5 V AAA Batteries or
100 to 240 VAC adapter
Calibration Back-up
EEPROM
Audio Feedback
All Touch Keys
End Point Sensing & Hold
Yes
Screen
Segment LCD backlight
Ambient Temperature Range
0 to 50 °C
Relative Humidity
up to 90%
Case
IP54
Dimensions (W x D x H)
150 x 210 x 45 mm
Weight
430 grams

18
WARRANTY
JENCO warrants this product to be free from significant deviations
in material and workmanship for a period of 1 year from date of
purchase. If repair or adjustment is necessary and has not been
the result of abuse or misuse, within the year period, please
return-freight-prepaid and the correction of the defect will be made
free of charge. If you purchased the item from our JENCO
distributors and it is under warranty, please contact them to notify
us of the situation. JENCO Service Department alone will
determine if the product problem is due to deviations or customer
misuse.
Out-of-warranty products will be repaired on a charge basis.
RETURN OF ITEMS
Authorization must be obtained from one of our representatives
before returning items for any reason. When applying for
authorization, have the model and serial number handy, including
data regarding the reason for return. For your protection, items
must be carefully packed to prevent damage in shipment and
insured against possible damage or loss. JENCO will not be
responsible for damage resulting from careless or insufficient
packing. A fee will be charged on all authorized returns.
NOTE: JENCO reserves the right to make improvements in
design, construction and appearance of our products without
notice.
Jenco Instruments, Inc.
7968 Arjons Drive, Suite C
San Diego, CA 92126 USA
TEL: [phone]
FAX: [phone]
E-Mail: [email protected]; [email protected]
Website: www.jencoi.com
Jenco Electronics, Ltd.
6F., NO. 81, Sec.2, Chang-an E. Rd., Jhongshan District, Taipei
City 104, Taiwan
TEL: [phone]
FAX: [phone]
E-Mail: [email protected]
Website: www.jenco.com.tw
Shanghai Jenco Instruments, Ltd.
18 Wang Dong Zhong Road
Sijing Town, Songjiang
Shanghai, China 201601
TEL: [phone]
FAX: [phone]
E-Mail: [email protected]
Website: www.jenco.com.cn