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Calibrating the voltage input

-

 

Press the PRG key until the message P9 appears on the display.

-

 

Press OK; the mV value of the input appears on the display.

-

 

Simulate a voltage of 0 mV at the input (if the value is between ±25 mV the zero 

is calibrated, otherwise the full scale value is calibrated).

-

 

Using the 

 and 

 keys, adjust the voltage value so as to have the correct 

voltage value on the display.

-

 

Press the SET key, the REL symbol lights up on the display indicating that 

the instrument is measuring the voltage present at the input using the second 

measurement scale.

-

 

Using the 

 and 

 keys, adjust the voltage value so as to have the correct 

voltage value on the display.

-

 

Press the SET key, the REL symbol on the display switches off.

-

 

Simulate a voltage of 450 mV at the input, corresponding to the full scale value 

of the first scale.

-

 

Using the 

 and 

 keys, adjust the voltage value so as to have the correct 

voltage value on the display.

-

 

Simulate a voltage of 1800 mV at the input, corresponding to the full scale 

value of the second scale.

-

 

Using the 

 and 

 keys, adjust the voltage value so as to have the correct 

voltage value on the display.

-

 

Press OK to confirm. To quit programming, press PRG repeatedly.

Display

Symbol 

description

°C

 

indicates that the value shown is in °C.

°F

 

indicates that the value shown is in °F.

pH

 

indicates that the unit of the value shown is pH.

mV

 

Indicates that the unit of the value shown is milli Volts.

A

 

indicates that the relay A is in closed status.

B

 

indicates that the relay B is in closed status.

REL

 

-  indicates  that  the  value  shown  corresponds  to  the  closing 

thresholds of the contacts of relay A or B;

 

-

 

indicates  that  the  offset  of  the  second  voltage  measurement 

scale is being calibrated.

REL flashing

 indicates  that  the  value  shown  corresponds  to  the  opening 

thresholds of the contacts of relay A or B.

Δ

 

- indicates that the instrument is in the parameter setting phase;

 

-

 

indicates that the closing and opening thresholds of relays A and 

B are being changed;

 

-

 

indicates  that  the  manual  compensation  temperature  is  being 

changed;

 

-

 

indicates that the pH electrode is being calibrated.

Error signals

OFL

 -  Warning  which  appears  during  measurement  when  the  value  to  be 

displayed is out of scale.

E1

  -  Error  warning  which  appears  during  pH  calibration  to  indicate  that  the 

offset value of the electrode is too high in absolute value.

E2

  -  Error  warning  which  appears  during  pH  calibration  to  indicate  that  the 

difference between the mV readings given by the two buffer solutions used 

for calibration is too great.

E3

  - Error warning which appears during pH calibration to indicate that the mV 

readings given by the two buffer solutions used for calibration are too close 

(about 50 mV at 25°C).

E4

  - Reading error on the EEPROM.

E5

  - Error warning indicating that the slope calculation gives a value 20% lower 

than the nominal value or gives a negative value.

E6

  -  Error  warning  indicating  that  the  slope  calculation  gives  a  value  150% 

lower than the nominal value.

Order code

DO 9403T-R1:

 pH transmitter 4÷20 mA passive or active, power supply 24 Vac, 

120x80x56 mm for use in the field.

HD 882 M100/300:

 Temperature probe with Pt100 sensor, miniature head, shaft 

Ø

 

6x300 mm.

HD 882 DM100/300:

 Temperature probe with Pt100 sensor, DIN B head, shaft 

Ø

 

6x300 mm.

HD 8642:

 Buffer solution 4.01 pH.

HD 8672:

 Buffer solution 6.86 pH.

HD 8692:

 Buffer solution 9.18 pH.

HD 220:

 Buffer solution redox 220 mV

HD 468:

 Buffer solution redox 468 mV

CP5:

 Extension cable. Connector S/wire - TERMINAL BOARD.

CP5/10:

 Extension cable L=10m.Connector BNC/S7.

CP5S:

 Extension cable L=5m. Connector BNC/S7.

CP5S/10:

 Extension cable L=10m. Connector BNC/S7.

KPI 10:

 Combined industrial electrode, S7 brass 1“ connector, glass body, Ag/

AgCl sat KCI, Ø 12x120, temperature 0÷130°C, porous Teflon fitting.

KPI 11:

 Combined industrial electrode, S7 brass 1“ connector, Rytron body, Ag/

AgCl sat KCI, temperature 0÷100°C, porous Teflon fitting.

KPI  12:

  Platinum  electrode  for  Redox  measurement,S  PG13,5  connector, 

pressure 6 bar.

KPI  13:

  Platinum  electrode  for  Redox  measurement,  Rytron  body,  S  PG13,5 

connector, Ag/AgCl sat KCl.

KPI GB 210:

 Electrode for biotechnology, S7 PG13.5 connector, glass body, gel, 

Ø 12x120, temperature 0÷135°C, max 10 bar.

PH-4

PH-5

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