Hanna Instruments HI 8614 - Manual (Page 3)

5 4
SPECIFICATIONS OF HI 8614 & HI 8614L
HI 8614
pH TRANSMITTER
HI 8614
L
pH INDICA
TOR
& TRANSMITTER
pH
The transmitters use a universal BNC socket
for quick and secure connection to any elec-
trode with a BNC connector.
For HI 8614 and HI 8614L 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 HI 8614L 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.)