Hach-Lange SI792 D, SI792x D, SI792x D-FF, SI792x D-PA User Manual - Manual (Page 10)

Specifications
8
Profibus-PA (DPV1)
Bus-powered device with constant
current consumption. Cyclic and acyclic
data exchange. Physical block,
2 analog input function blocks,
2 discrete input blocks, logbook block,
alarm block.
PNO directive: PROFIBUS-PA,
Profile for Process Control Devices,
Version 3.0
Physical interface: MBP-IS
(Manchester Bus Powered-Intrinsically
Safe) to IEC 1158-2 (DIN-EN 61158-2)
Connection: via segment coupler to
SPC, PC, PCS
Address range: 1 to 126
Temperature Input
Probe
NTC 30 k Ω/NTC 22 kΩ (selectable),
2-wire connection
Range –20.0 to 150.0 °C (–4 to 302 °F)
Adjustment range 10 K
Resolution 0.1 °C; 0.1 °F
Measurement error 1 , 2
<0.5 K
(<1 K at T >100 °C)
Dissolved oxygen input
Type A sensor 3 Oxyferm, Oxysens (Hamilton)
Type B sensor
3 Oxygold G (Hamilton)
Measuring current 0–1200 nA; resolution: 20 pA
Measurement error
1 , 2 0.5% measured value + 0.05 nA
Temperature coefficient 0.005 nA/K
Permitted guard current
≤
20 µA
Polarization voltage
400–1000 mV; resolution:
approximately 3 mV
Range, percent saturation 0–199.9%/200–500% (–10 to 80 °C)