HORIBA HO-480 Panel-mount type ORP meter

Model

HO-480

Measuring range

±2000 mV: resolution of 1 mV

Repeatability

Within ±5 mV (method by reference voltage input)

Linearity

Within ±5 mV (method by reference voltage input)

Transmission
output

4 mA to 20 mA DC: input/output isolated type
Maximum load resistance: 900 Ω
Transmission output range: Free setting within the measuring range

Contact output

Outputs: 2 points
Alarm contact output (R1 and R2)
  Contact type: relay contact, SPDT (1c)
  Contact rating: 240 V AC, 3 A and 30 V DC, 3 A (resistance load)
  Contact function: selectable from upper/lower limit operation (ON/OFF control), alarm, and under maintenance.

Transmission
output hold feature

Selectable function

• Holding at the latest value

• Holding at the preset value

• Real data output without holding
  (In the maintenance mode, the latest value is held.)

Self-diagnosis
function

• Outside of the measuring range

• Converter error

Ambient
temperature

−5℃ to 45℃