GHM Delta OHM HD2106.1 User manual

Operating manual
Conductivity
meters/thermometers
HD2106.1
– HD2106.2
www.deltaohm.com
English
Keep for future reference.

HD2106 - 2 - V2.4
CONTENTS
INTRODUCTION ........................................................................................................................................................3
KEYBOARD AND MENU DESCRIPTION.........................................................................................................8
CONDUCTIVITY MEASUREMENT....................................................................................................................16
COMPENSAZIONE AUTOMATICA O MANUALE DELLA CONDUCIBILITA’......................................................................18
CALIBRATION OF CONDUCTIVITY...............................................................................................................................18
AUTOMATIC CALIBRATION OF CONDUCTIVITY USING MEMORIZED STANDARD SOLUTIONS...................................19
MANUAL CALIBRATION OF CONDUCTIVITY USING NON MEMORIZED STANDARD SOLUTIONS................................20
TABLE OF STANDARD SOLUTIONS AT 147 µS/CM,1413 µS/CM,12.88 MS/CM AND 111.8 MS/CM..............................21
DIRECT INPUT INTO PT100 AND PT1000 TEMPERATURE PROBES ........................................................................22
HOW TO MEASURE ......................................................................................................................................................22
INSTRUCTIONS TO CONNECT THE TP47 MODULE FOR CONDUCTIVITY/TEMPERATURE COMBINED PROBES,
4-WIRE PT100 PROBES,AND 2OR 4-WIRE PT1000 PROBES..........................................................................22
WARNINGS AND OPERATING INSTRUCTIONS .....................................................................................26
NOTES ON CONDUCTIVITY PROBES............................................................................................................................27
INSTRUMENT SIGNALS AND FAULTS .........................................................................................................28
LOW BATTERY WARNING AND BATTERY REPLACEMENT ...............................................................30
INSTRUMENT STORAGE......................................................................................................................................32
SERIAL INTERFACE AND USB .........................................................................................................................33
STORING AND TRANSFERRING DATA TO A PC.....................................................................................35
THE LOGGING FUNCTION –ONLY FOR HD2106.2.................................................................................................35
CLEARING THE MEMORY –ONLY FOR HD2106.2 ...................................................................................................35
THE PRINT FUNCTION.................................................................................................................................................36
CONNECTION TO A PC.........................................................................................................................................37
CONNECTION TO THE RS232C SERIAL PORT OF THE INSTRUMENT.......................................................................37
COLLEGAMENTO ALLA PORTA USB 2.0 DELLO STRUMENTO -SOLO PER HD2106.2..........................................37
NOTE SUL FUNZIONAMENTO E LA SICUREZZA OPERATIVA .........................................................38
INSTRUMENT TECHNICAL CHARACTERISTICS .....................................................................................39
TECHNICAL DATA OF PROBES WITH MODULE IN LINE WITH THE INSTRUMENT.......................................................42
Pt100 OR Pt1000 PROBES COMPLETE WITH TP47 MODULE............................................................................42
2AND 4-ELECTRODE CONDUCTIVITY PROBES .....................................................................................................42
ORDERING CODES .................................................................................................................................................43

HD2106 - 3 - V2.4
INTRODUCTION
The HD2106.1 and HD2106.2 are portable instruments with a large LCD display.
They measure conductivity, liquid resistivity, total dissolved solids (TDS) and salinity
using combined 4-ring and 2-ring conductivity/temperature probes. Temperature only
is measured by Pt100 or Pt1000 immersion, penetration or contact probes.
The probe calibration can be performed automatically in one or more of the 147
µS/cm, 141 3µS/cm, 12880 µS/cm or 111,800 µS/cm conductivity calibration solu-
tions.
The temperature probes are automatically detected by the instrument upon turning
on.
The HD2106.2 is a datalogger. It memorizes up to 36,000 conductivity and tempera-
ture samples that can be transferred from the instrument connected to a PC via the
RS232C serial port or USB 2.0 port. The storing interval, printing, and baud rate can
be configured using the menu.
The HD2106.1 and HD2106.2 models are fitted with an RS232C serial port and can
transfer the acquired measurements to a PC or to a portable printer in real time.
Display, printing and logging (model HD2106.2) always include temperature in °C or
°F, and one of the parameters of conductivity measure (χ or Ω or TDS or NaCl).
The Max, Min and Avg function calculates the maximum, minimum or average values.
Other functions include the relative measurement REL, the Auto-HOLD function, and
the automatic turning off which can also be disabled.
The instruments have IP66 protection degree.
This manual describes the HD2106.1 and HD2106.2 models: if not otherwise
specified, the description is intended to be applicable to both models.

HD2106 - 4 - V2.4
Conductivity meter – Thermometer
HD2106.1

HD2106 - 5 - V2.4
HD2106.1
1. 8-pole DIN45326 connector, input for combined 4-ring or 2-ring conductivi-
ty/temperature probes, for direct 4-wire Pt100 temperature probes and 2 or
4-wire Pt1000 probes complete with TP47 module.
2. External auxiliary power supply connector input (positive at centre).
3. Battery symbol: displays the battery charge level.
4. Function indicators.
5. Secondary display line.
6. CAL/key: during normal operation starts the conductivity probe calibration; in
the menu, increases the current value.
7. FUNC/ENTER: key: during normal operation displays the maximum (MAX), the
minimum (MIN) and the average (AVG) of current measurements; in the menu,
confirms the current selection. This updates the display measurement when the
Auto-Hold function is enabled.
8. REL/: key: enables the relative measurement (displays the difference between
the current value and the logged value when the key is pressed); in the menu,
decreases the current value.
9. SERIAL key: starts and ends the data transfer to the serial communication port.
10. MENU key: allows access to and exit from the menu.
11. χ-Ω-TDS/ESC key: changes the main variable measurement between conductivi-
ty, resistivity, total dissolved solids (TDS) and salinity. In the menu, cancels the
operation in progress without making changes.
12. °C/°F key: when the probe is not connected, allows manual modification of the
temperature. When the probe is connected, if this key is pressed twice, it changes
the unit of temperature measurement from degrees Celsius to Fahrenheit.
13. ON-OFF/AUTO-OFF key: turns the instrument on and off; when pressed togeth-
er with the CAL key, disables the automatic turn off.
14. MAX, MIN and AVG symbols.
15. Main display line.
16. Line for symbols and comments.
17. 8-pole MiniDin connector for RS232C. For the connection to PC (with cable
HD2110CSNM or C206) or printer (with cable HD2110CSNM).

HD2106 - 6 - V2.4
Conductivity meter – Thermometer
HD2106.2

HD2106 - 7 - V2.4
HD2106.2
1. 8-pole DIN45326 connector, input for combined 4-ring or 2-ring conductivi-
ty/temperature probes, for direct 4-wire Pt100 temperature probes and 2 or
4-wire Pt1000 probes complete with TP47 module.
2. External auxiliary power supply connector input (positive at centre).
3. Battery symbol: displays the battery charge level.
4. Function indicators.
5. Secondary display line.
6. CAL/key: during normal operation starts the conductivity probe calibration; in
the menu, increases the current value.
7. FUNC/ENTER key: during normal operation displays the maximum (MAX), the
minimum (MIN) and the average (AVG) of current measurements; in the menu,
confirms the current selection. This updates the display measurement when the
Auto-Hold function is enabled.
8. REL/key: enables the relative measurement (displays the difference between
the current value and the logged value when the key is pressed); in the menu,
decreases the current value.
9. SERIAL/ERASE LOG key: starts and ends the data transfer to the serial commu-
nication port. In the menu, clears the data contained in the instrument's memory.
10. LOG/DUMP LOG key: during normal operation, starts and ends the saving of the
data in the internal memory; in the menu, starts the data transfer from the in-
strument's memory to the PC.
11. Mini-USB type B connector for USB 2.0. For the connection to PC (with cable
CP23).
12. MENU key: allows access to and exit from the menu.
13. χ-Ω-TDS/ESC key: changes the main variable measurement between conductivi-
ty, resistivity, total dissolved solids (TDS) and salinity. In the menu, cancels the
operation in progress without making changes.
14. °C/°F key: when the probe is not connected, allows manual modification of the
temperature. When the probe is connected, if this key is pressed twice, it changes
the unit of temperature measurement from degrees Celsius to Fahrenheit.
15. ON-OFF/AUTO-OFF key: turns the instrument on and off; when pressed togeth-
er with the CAL key, disables the automatic turn off.
16. MAX, MIN and AVG symbols.
17. Main display line.
18. Line for symbols and comments.
19. 8-pole MiniDin connector for RS232C. For the connection to PC (with cable
HD2110CSNM or C206) or printer (with cable HD2110CSNM).

HD2106 - 8 - V2.4
KEYBOARD AND MENU DESCRIPTION
Foreword
The instrument keyboard is composed of single-function keys, like the MENU key, and
double-function keys such as the ON-OFF/Auto-OFF key.
In the double-keys, the function in the upper part is the "main function", while the
one in the bottom part is the "secondary function". When the instrument is in stan-
dard measurement mode, the main function is active. In the menu or in conjunction
with the FUNC key, the secondary function is enabled.
The pressing of a key is accompanied by a short confirmation beep: a longer beep
sounds if the wrong key is pressed.
Each key specific function is described in detail below.
ON-OFF/Auto-OFF key
The instrument is turned on and off using the ON/OFF key. Turning on enables all dis-
play segments for a few seconds, starts an auto-test, and displays the current values
of cell constant (CELL) and temperature coefficient α(ALPH). Finally, it sets the in-
strument ready for normal measurement.
MIN
cm
min s
2
3
mµ
m
k
>>>
During turning on, should no probes be connected, the last manually-set
temperature appears in the secondary line. The unit of measurement symbol
(°C or °F) starts blinking, and a letter "m" meaning "manual" appears next to
the battery symbol.
The probe's data are captured upon turning the instrument on: if the ERR
message appears in the secondary line, it is necessary to turn the instrument
off and then on again.
Replace the probes when the instrument is off.
+ Automatic turning off
The instrument has an AutoPowerOff function that automatically turns the instrument
off after about 8 minutes if no key is pressed during the intervening time. The Auto-
PowerOff function can be disabled by holding the CAL/key pressed down when turn-
ing the instrument on: the battery symbol will blink to remind the user that the in-
strument can only be turned off by pressing the <ON/OFF> key.

HD2106 - 9 - V2.4
The automatic turning off function is disabled when external power is used.
On the other hand, it cannot be disabled when the batteries are discharged
FUNC/ENTER key
During normal measurement this enables the display and logging of the maximum
(MAX), minimum (MIN) and average (AVG) value of the conductivity, liquid resistivity,
total dissolved solids, salinity and temperature measurements, updating them with
the acquisition of new samples. The acquisition frequency is once a second. Use the
χ.Ω.TDS-ESC key to switch from conductivity to liquid resistivity, to total dissolved
solids or to salinity.
In the menu, the ENTER key confirms the current parameter and then goes to the
next one.
The MAX, MIN and AVG measurements remain in the memory until the instrument is
on, even after exiting the calculation function. To reset the previous values and restart
with a new measurement session, press FUNC until the message "FUNC CLR" appears,
then use the arrows to select YES and confirm using ENTER.
The conductivity (or resistivity or total dissolved solids or salinity) and tem-
perature values are displayed at the same time. According to settings in the
"RCD Mode" menu item, the maximum, minimum and average indications ha-
ve different meanings: please see the description of this MENU key below.
Attention: the data captured using the Record function cannot be transferred
to the PC.
CAL/

key
It increases the current parameter when used in the menu; when used in measure-
ment mode, it starts the conductivity probe calibration (please see the chapter dedi-
cated to calibration on page 18).
°C/°F key
When the temperature probe is connected, the measured value is used to compensate
the conductivity measurement; the key changes the unit of measurement from de-
grees Celsius to Fahrenheit.
If the probe is not present, the compensation temperature must be entered manually:
to manually change the value shown in the display lower line, press °C/°F once. The
temperature indicated starts blinking. While the display is blinking, it is possible to
change the compensation temperature using the arrows (and ). Confirm using
Enter. The display stops blinking, and that temperature is used for compensation.
If the temperature probe is not present, to change the unit of measurement between
°C and °F, it is necessary to press twice the °C/°F key.

HD2106 - 10 - V2.4
χ.Ω.TDS (conductivity - resistivity - total dissolved solids - salinity) / ESC
key
Changes the main variable measurement between conductivity, resistivity, total dis-
solved solids (TDS) and salinity. The selected parameter is used for display, printing
and logging (model HD2106.2).
The instrument has an Auto-Hold function, which can be set in the MENU, that "freez-
es" the measurement automatically when it has been stable (within 1 digit) for over
10 seconds: the message HOLD is displayed.
To perform a new measurement, it is necessary to press the FUNC/ENTER key.
The HOLD message starts blinking, while the display follows the actual measurement
trend, until it stabilizes again and the HOLD message remains still.
In the menu, the key clears or cancels the active function (ESC).
REL/

key
In measurement mode, it displays the difference between the current value and that
measured on pressing the key. The REL message appears on the display; press the
key again to return to the current measurement.
When used in the menu, it decreases the current variable value.
MENU key
The first menu item is accessed by initially pressing on the MENU key; press ENTER to
go to the following items. To modify the item displayed, use the arrow keys (and
). The current value is confirmed by pressing the ENTER key and the display moves
on to the next parameter. If pressing ESC the setting is cancelled.
To exit the menu, press the MENU key at any time.
The menu items are listed in this order:
1) Management of memorized data (only HD2106.2): the message
">>>_LOG_DUMP_or_ERAS" (Transfer data or erase) is scrolled in the
comment line. The center figure reports the number of free memory pages
(FREE). Pressing SERIAL/EraseLOG permanently erases all memory data. By
pressing LOG/DumpLOG, the data transfer of the logged data on the serial port
is started: the "BAUD-RATE" must have previously been set to the maximum
value (please see the menu items described below and the paragraph "STOR-
ING AND TRANSFERRING DATA TO A PERSONAL COMPUTER" on page 35).
2) Print and log interval: sets the interval in seconds between two loggings or
data transfers to the serial port. The interval can be set at 0, 1s, 5s, 10s, 15s,
30s, 60s (1min), 120s (2min), 300s (5min), 600s (10min), 900s (15min),
1200s (20min), 1800s (30min) and 3600s (1hour). If the value 0 is set, SE-
RIAL works on command: the sending of data to the serial port is per-