Hanna Instruments HI520 - Specifications; Controller

Specications 8
2. SPECIFICATIONS
2.1. CONTROLLER
Model Relays Analog Outputs
HI520‑0320 3 2
HI520‑0540 5 4
2.1.1. Specifications
Supported
digital probes
• pH
` HI1006‑18 (LT, PTFE junction)
` HI1016‑18 (LT, ceramic junction)
` HI1006‑38 (HT, PTFE junction)
` HI1016‑38 (HT, ceramic junction)
` HI1006‑48 (HF, PTFE junction)
` HI1016‑48 (HF, ceramic junction)
` HI1026‑1803 (meat applications only)
` HI1126‑1805 (general food applications)
• ORP
` HI2004‑18 (platinum sensor, PTFE junction)
` HI2014‑18 (platinum sensor, ceramic junction)
` HI2004‑28 (gold sensor, PTFE junction)
` HI2014‑28 (gold sensor, ceramic junction)
• conductivity
` HI7630‑28 (two‑electrode cell)
` HI7630‑48 (four‑ring, platinum on glass)
• galvanic Dissolved Oxygen
` HI7640‑18
• optical Dissolved Oxygen
` HI7640‑58
Display Graphic LCD, 128 × 64 pixel B/W with backlight
Digital inputs
2 independent, galvanically isolated inputs, configurable for Hold & Cleaning functions
On state: 5 to 24 Vdc, low or high level active