Hanna-instruments HI 8614 Manual de usuario descargar pdf (Pagina 3)

54

SPECIFICATIONS OF HI8614 & HI8614L

HI 8614

pH TRANSMITTER

HI 8614 L

pH INDICATOR

& TRANSMITTER

pH

The transmitters use a universal BNC socket

for quick and secure connection to any elec-

trode with a BNC connector.

For HI8614 and HI8614L the temperature

compensation is performed by the transmitter's

ATC circuitry if the temperature probe

(HI 76608, optional) is attached. If ATC is not

required, it is possible to substitute the tem-

perature probe with a fixed resistor.

The input is isolated from the current loop to

eliminate problems related to ground loop,

low insulation cables, multiple electrode con-

nections, and a common mode voltage of up

to 100 V ensures true differential readings.

The terminal board of the transmitter provides

for connection of power supply, pH or ORP

electrodes and temperature probe (for HI 8614

and HI8614L models only).

The unit is enclosed in a protective casing

conforming to IP 65 standards.

Range 4 to 20 mA / 0.00 to 14.00 pH

Resolution 0.01 mA / 0.01 pH

Accuracy (@20°C/68°F)

±0.02 mA / ±0.02 pH

Typical EMC Deviation

±0.25 mA / ±0.2 pH

Calibration Offset: ±2.2 mA / ±2 pH

Slope: ±0.5 mA / 86 to 116%

Temperature Compensation

Fixed or automatic from 0 to 100°C

(32 to 212°F) with HI76608 probe

Input Impedance 10

12

Ohm

Output 4-20 mA (isolated)

Installation Category I I

Protection IP 65

Environment 0 to 50°C (32 to 122°F);

RH max 95% non-condensing

Power Supply

HI8614: 18 to 30 Vdc

HI8614L: 20 to 36 Vdc

Load Max 500 Ohm

Dimensions 165 x 110 x 90 mm

(6.5 x 4.3 x 3.5'')

Weight 1 kg (2.2 lb.)

1 2 3 4 5 6 7 8 ... 18 19

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