Name: ORP Meter ORP102
Brand: Senvolt
SKU: ORP102

ORP Meter ORP102

Model ORP102

Online ORP/pH meter: ±2000 mV ORP with ±1 mV accuracy, pH 0–14, isolated 4–20 mA, high/low relays and optional RS485 Modbus RTU.

−2000 to +2000 mV ORP, ±1 mV accuracy

Switchable to pH measurement

Isolated 4–20 mA output

High/low relays, AC 220 V 3 A

Optional RS485 Modbus RTU

ORP102 specifications

pH range	0–14.00 pH (maximum −2 to 16 pH), graduation 0.01 pH
ORP range	−2000 to +2000 mV, graduation 1 mV
Temperature range	0–99.9 °C (maximum −10 to 120 °C), graduation 0.1 °C
pH accuracy	±0.2 pH
ORP accuracy	±1 mV
Temperature accuracy	±0.5 °C
Automatic temperature compensation	0–99.9 °C, 25 °C reference
Repeatability (electronic unit)	±0.02 pH
Stability	±0.02 pH / 24 h
Input impedance	≥ 10¹² Ω
Galvanically isolated output	4–20 mA
Output current error	≤ ±1% FS
High/low alarm relays	AC 220 V, 3 A
Data storage	72 points, three days of data
RS485 interface	Optional, Modbus RTU, isolated
Power supply	AC 220 V ±22 V, 50 ±10 Hz; optional DC 24 V ±2.4 V
Protection	IP54
Dimensions	96 (L) × 96 (W) × 120 (D) mm
Weight	0.6 kg (transmitter)
Working conditions	0–60 °C ambient, relative humidity < 85%
Electrode cable	5 m standard; works with three-in-one or two-in-one combination electrodes

The ORP102 is a cost-effective online ORP transmitter that can also be set up for pH. It is widely used on disinfection contact tanks, pool and spa water, and chemical treatment stages in ETPs where a simple, reliable redox reading with alarm relays is all that is needed.

Typical applications

Disinfection contact tanks
Pools, spas and water parks
ETP oxidation and reduction stages

Send us the application details and we will confirm the right configuration and lead time.

ORP Meter ORP102

ORP102 specifications

Typical applications

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