Model Number: PH-5520 Brand Name: tlead Key Specifications/Special Features: PH-5520 digital pH/ORP controllerApplications: widely used for online monitoring pH/ORP in environment protection water treatment, pure water treatment, industrial process and aquaculture industrySpecifications:Range:pH: 0.00 to 14.00

ORP: -1000 to 1000mV (probe optional)

Temperature: 0.0 to 99.9°C

Compensation component: NTC10K

Resolution:

• pH: 0.01pH
• ORP: 1mV
• Temperature: 0.1°C

Accuracy:

• pH: 0.1 level
• ORP:
• Temperature: < ±0.5°C
• Approximate input impedance: 3 x 10Ω
• Buffer solution: pH value 10.00, 9.18, 7.00, 6.86, 4.00 and 4.01
• Temperature compensation range: 0 to 50°C (with 25°C as standard) manual and automatic

4~20mA output:

• Channels: single channels
• Characteristics: Isolated, fully adjustable, reversible, instrument/transmitter for selection
• Loop resistance: 500Ω (maximum), 24V DC
• Accuracy: ±0.1mA

Control contacts:

• Electrical contacts: double relay SPST-NO, hysteresis setting
• Load capacity: 220/110V AC, 3A (maximum), 24V DC, 3A (maximum)
• Power consumption: <3W

Working environment:

• Temperature: 0 to 50°C
• Relative humidity: <85% RH

Storage environment:

• Temperature: -20~60°C
• Relative humidity: <85%RH
• Dimensions: 96 x 96 x 105mm
• Hole size: 91 x 91mm
• Installation: panel mounted and fast installation