9
8
INSTALLATION
pH 502
and
mV 602
offer a multitude of
possibilities, from single
and dual setpoints to
ON/OFF or PID dos-
age, isolated outputs
with user-selectable
zoom, bi-directional
RS485, recorder out-
puts in mAmps and
Volts.
In addition, pH 502
and mV 602 are both
equipped with the ex-
clusive differential
input.
In a system with poor
grounding, it is possible
to have a ground cur-
rent flowing through
the reference junction.
This can cause a rapid
degradation of the elec-
trode. The Hanna
differential input re-
duces the likelihood of
ground loops.
See the diagram for a
recommended installa-
tion.
SPECIFICATIONS pH 502 & mV 602
Range
0.00-14.00 pH
(
pH 502
series only)
±2000 mV
(
mV 602
series only)
-9.9 to 120.0 °C
Resolution
0.01 pH (
pH 502
series) / 1 mV (
mV 602
series)
0.1 °C
Accuracy
±0.02 pH (
pH 502
series) / ±2 mV (
mV 602
series)
(@20°C/68°F)
±0.5 °C
Typical EMC Deviation
±0.2 pH (
pH 502
series) / ±10 mV (
mV 602
series)
±0.5 °C
Calibration
pH: automatic, 1, 2 or 3 point, at pH 4.01, 7.01, 10.01
ORP: automatic, 2 point, at 0 and 350 or 1900 mV
Temperature Compensation (pH 502 series only)
automatic (with Pt100 probe) or manual, -9.9 to 120°C
Outputs
digital: RS485 bi-directional, optoisolated; or
analog, galvanically isolated: 0-1 mA, 0-20 mA and
4-20 mA, 0-5 Vdc, 1-5 Vdc and 0-10 Vdc
Setpoint Relay
1 or 2 contact outputs SPDT, 5A-250 Vac, 5A-30 Vdc
(resistive load), fuse protected (5A, 250V fuse), or
1 or 2 Solid State Relays (SSR), 1A-250 Vac (resistive
and inductive load), fuse protected (2A, 250V fast fuse)
Alarm Relay
1 contact output SPDT, 5A-250 Vac, 5A-30 Vdc
(resistive load), fuse protected (5A, 250V fuse)
Installation Category
II
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%
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.)
