Hanna Instruments HI 700 Series Manuale utente

HI700 / HI710 Series

Process,

Panel-mounted,

Microprocessor-based,

Conductivity and TDS Controllers

www.hannainst.com

All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner,

Hanna Instruments Inc., Woonsocket, Rhode Island, 02895, USA.

Dear Customer,

Thank you for choosing a Hanna Instruments product.

This instruction manual has been written for the following products:

HI700221-αEC controller with dual setpoint, ON/OFF and PID controls, analog

output.

HI700222-αEC controller with dual setpoint, ON/OFF and PID controls, RS485

port.

HI710221-αEC and TDS controller with dual setpoint, ON/OFF and PID controls,

analog output.

HI710222-αEC and TDS controller with dual setpoint, ON/OFF and PID controls,

RS485 port.

α = 1 means 115 Vac, 50/60 Hz power supply

α = 2 means 230 Vac, 50/60 Hz power supply

Please read this instruction manual carefully before using the instrument. It will provide

you with the necessary information for the correct use of the instrument, as well as a

precise idea of its versatility.

If you need additional technical information, do not hesitate to e-mail us at:

[email protected].

TABLE OF CONTENTS

PRELIMINARY EXAMINATION .......................... 4

GENERAL DESCRIPTION ............................ 4

FUNCTIONAL DESCRIPTION........................... 6

MECHANICAL DIMENSIONS........................... 7

SPECIFICATIONS ................................ 8

INSTALLATION ................................. 9

SETUP MODE .................................12

CONTROL MODE ................................18

IDLE MODE ..................................25

ANALOG OUTPUT................................26

RS 485 COMMUNICATION ...........................28

CALIBRATION .................................35

LAST CALIBRATION DATA ............................43

FAULT CONDITIONS AND SELFTEST PROCEDURES ................44

EXTERNAL FUNCTIONS .............................48

STARTUP ...................................49

EC VALUES AT VARIOUS TEMPERATURES ....................50

PROBE MAINTENANCE .............................51

ACCESSORIES .................................52

GENERAL DESCRIPTION

HI700 and HI710 series are real time microprocessor-based EC or TDS controllers. They

provide accurate measurements, flexible ON/OFF or proportional control capabilities,

analog input and output, RS485 port, dual setpoint and alarm signal.

The system is composed of a case inside which the signal conversion circuitry, the

microprocessor circuitry and the output power drivers are contained.

MAIN FEATURES OF DIFFERENT MODELS

• Display: large LCD with 4 ½ 17 mm digits and 3 ½ 10 mm digits.

• LEDs: four LEDs are provided for signaling the energizing of relay 1 and 2 (yellow

LEDs) and alarm relays (a green and a red LED).

• Relays: 1 or 2 output relays for low conductivity or high conductivity dosage (COM, NO

and NC contacts) and 1 output relay for alarm condition (COM, NO and NC contacts).

• RS485 isolated communication link (HI700222 and HI710222 only).

•Calibration and Setup procedures allowed only through an unlock password.

• Calibration: 2 points with Hanna Instruments EC and TDS calibration solutions.

• Four different EC working ranges (0 to 199.9µS; 0 to 1999µS; 0 to 19.99mS; 0

to 199.9mS).

• Four different TDS working ranges (0 to 100.0ppm; 0 to 1000ppm; 0 to 10.00ppm;

0 to 100.0ppm) for HI710 models.

• Possibility to switch to TDS measurements with conversion factor from 0.00 to 1.00

(HI710 models only).

• Temperature compensation of the Hanna Instruments standard solutions.

PRELIMINARY EXAMINATION

Remove the instrument from the packing material and examine it carefully. For further

assistance, please contact your local Hanna Instruments Office or email us at tech@

hannainst.com.

Note Save all packing materials until you are sure that the instrument functions correctly.

Any damaged or defective items must be returned in their original packing materials

together with the supplied accessories.

•Input: 4-ring EC/TDS probe with cell constant 2.0 ± 10%, or 4-20mA analog input

from a transmitter.

• Output (HI700221 and HI710221 only):

- isolated 0-1 mA, 10 Kmaximum load (optional);

- isolated 0-20 mA, 750 maximum load (optional);

- isolated 4-20 mA, 750 maximum load (optional);

- isolated 0-5 VDC, 1 Kminimum load (optional);

- isolated 1-5 VDC, 1 Kminimum load (optional);

- isolated 0-10 VDC, 1 Kminimum load (optional).

• Real time clock.

• Temperature compensation of the EC and TDS reading with temperature coefficient

ß selectable from 0 to 10%/°C.

• Manual temperature setting when the temperature probe is not inserted or temperature

exceeds the upper range.

• Last calibration data internally recorded (non-volatile EEPROM memory): calibration

date and time, cell constant, calibration solution values.

FUNCTIONAL DESCRIPTION

FRONT PANEL

1. Liquid Crystal Display

2. SETUP key enters setup mode

3. CFM key confirms current choice (and skips to the next item)

4. CAL key initiates and exits calibration mode

5. key increases the blinking digit/letter by one when selecting a parameter. Advances forward

while in last calibration data viewing mode. Increases the temperature setting when

temperature probe is not inserted

6. CAL DATA key last calibration data viewing (enters and exits)

7. key decreases the blinking digit/letter by one when selecting a parameter. Reverts backward

while in last calibration data viewing mode. Decreases the temperature setting when

temperature probe is not inserted

8. LCD key exits from setup and reverts back to normal mode (in idle or control phases with the

measurement on the display). During EC/TDS calibration, it alternates EC/TDS buffer

value and current cell constant on the display. In HI710 models only, it switches

between EC and TDS reading

9. key moves to the next digit/letter (circular solution) when selecting a parameter. Same

as key during last calibration data viewing mode

10. LEDs

REAR PANEL

1. 6-pin RS485 terminal (HI700222 and HI710222 only)

2. Analog Output (HI700221 and HI710221 only)

3. Power Supply

4. Alarm Terminal

5. Contact 2 - Second Dosing Terminal

6. Timer

7. Hold

8. Contact 1 - First Dosing Terminal

9. Pt 100 Temperature Sensor connector

10. EC/TDS probe connector

11. Power supply output for external transmitter

12. 4-20 mA input from external transmitter

Unplug the meter before any electrical connection.

MECHANICAL DIMENSIONS

FRONT VIEW SIDE VIEW

* Note: actual TDS range for HI710 models depends on TDS factor set.

Ranges

0.0 to 199.9 µS, 0 to 1999 µS

0.00 to 19.99 mS, 0.0 to 199.9 mS

0.0 to 100.0 ppm, 0 to 1000 ppm (HI710* only)

0.00 to 10.00 ppt, 0.0 to 100.0 ppt (HI710* only)

-10.0 to 100.0 °C

Resolution

0.1 µS, 1 µS, 0.01 mS, 0.1 mS

0.1 ppm, 1 ppm (HI 710 models only)

0.01 ppm, 0.1 ppm (HI 710 models only)

0.1 °C

Accuracy

(@20 °C/68 °F)

±0.5 % F.S. (EC and TDS)

±0.5 °C (0 to 70 °C), ±1 °C (outside)

Typical EMC Deviation ±2 % F.S. (EC and TDS) / ±0.5 °C

EC Calibration Automatic or manual at 1 point

Temperature

Compensation

Automatic or manual, -10 to 100 °C with adjustable

temperature coefficient from 0.00 to 10.00%/ °C

TDS Factor (HI710 only) Adjustable from 0.00 to 1.00

Outputs Analog: isolated 0-1 mA, 0-20 mA and 4-20 mA;

0-5 Vdc, 1-5 Vdc and 0-10 Vdc; or digital: RS485

Analog Input 4-20 mA

Setpoint Relay 2 contact outputs SPDT, 5A-250 Vac, 5A-30 Vdc

(resistive load). Fuse protected: 5A, 250V FUSE

Alarm Relay Contact output SPDT, 5A-250 Vac, 5A-30 Vdc

(resistive load). Fuse protected: 5A, 250V FUSE

Power Supply 230 ±10% Vac or 115 ±10% Vac, 50/60 Hz

Power Consumption 15 VA

Over Current Protection 400 mA 250V FAST FUSE

Environment 0 to 50 °C (32 to 122 °F); RH max 95%

Installation Category II

Enclosure Single case ½ DIN

Dimensions Panel cutout: 140 x 140 mm

Instrument: 144 x 144 x 170 mm

Weight Approximately 1.6 kg. (3.5 lb.)

SPECIFICATIONS

INSTALLATION

HI700 and HI710 series offer a

multitude of possibilities, from

single and dual setpoints to

ON/OFF or PID dosage, isolated

outputs with user-selectable

zoom, bi-directional RS485,

recorder outputs in mAmps and

Volts. Use the 3-wire Pt 100

temperature sensor to compen-

sate for the cable resistance

and have a precise automatic

temperature compensation of the

measurements in long distance

applications. See the diagram

for a recommended installation.

• Power Supply: Connect a 3-wire power cable to the terminal

strip, while paying attention to the correct live (L), earth (PE)

and neutral (N) terminal connections.

Power: 115 Vac -100 mA / 230 Vac - 50 mA.

Live Contact: fused inside 400 mA.

PE leakage current 1 mA; this contact must be connected to ground.

• Conductivity input: the default input is from conductivity probe. Connect the EC probe

to the terminals #10 on page 7. Connect the cable shield to pin 1, and the other

four wires according to the following table:

Color Pin #

GREEN 2

WHITE 3

RED 4

BLUE 5

•Pt 100 Terminals: these contacts (#9 on page 7) connect the Pt 100 temperature

sensor for automatic temperature compensation of measurement. The HI7639

EC/TDS probe has a built-in 3-wire Pt 100 sensor to be connected according to the

following table:

Color Pin #

GRAY 6

BROWN 7

YELLOW 8

If using a different Pt 100, separated from the conductivity probe, connect the cable

shield to pin 9, and the other wires as explained below.

In the case of a 2-wire sensor connect the Pt 100 to pins

6 and 8, and short pins 7 and 8 with a jumper wire.

If the Pt 100 has more than 2 wires, connect the two wires of one end to pins 7 and

8 (pin 7 is an auxiliary input to compensate for the cable resistance) and one wire

from the other end to pin 6. Leave the fourth wire unconnected, if present.

Note If the meter does not detect the temperature probe, it will switch automatically to manual

temperature compensation with the temperature adjustable through the up and down

arrow keys. The “°C” symbol will blink on the LCD.

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