Signal Inputs And Outputs; Setting Ranges For Alarms / Limit Values; Sensors - Grundfos Conex DIA-G Instrucciones De Instalación Y Funcionamiento

8.1 Signal inputs and outputs

Relay outputs
Signal inputs
Signal outputs

8.2 Setting ranges for alarms / limit values

Switching point for
limit values
Alarm relay

8.3 Sensors

Amperometric sensor disc Cl
Connection via 2-wire cable 0.5 mm
screen. Maximum length (maximum distance
between the sensor disc and gas warning controller):
100 metres.
91835237 (314-011)/96687714 (314-013) include the
wall housing with sensor disc.
Potentiostatic sensor Cl
The sensor is plugged directly into the interface. The
interface is connected to the gas warning controller
using a 4-wire cable with single screening (special
cable for CAN connections). Maximum length
(maximum distance between Conex
interface and gas warning controller): 500 metres.
Five potential-free relay outputs, switchable to NO (normally open) or NC (normally
closed) (fail safe); maximum 250 V / 6 A, maximum 550 VA ohmic load:
• two relays for the limit values of each of the two sensors
• one alarm relay; free assignment to the limit values or to sensor test (see below)
• Two measured value inputs (for amperometric sensors 1 and 2)
• Internal CANBus, including connections for two sensor interfaces, each for the
operation of one potentiostatic sensor
Two potential-free current outputs (0) 4 - 20 mA, maximum load of 500 Ω, with cable
breakage monitoring; assignment of 0 (4) - 20 mA to the measuring range of the
selected sensor, or linear assignment of the current output (0-20 mA) to the
measuring value (within the measuring range of the selected sensor)
• Limit value 1 (warning if exceeded) can be set to any value within the measuring
range.
• Limit value 2 (warning if exceeded) can be set to any value within the measuring
range.
• Limit value 2 can be delayed between 0-180 seconds.
• Hysteresis: 0-50 % of measuring range.
• Limit value 1 and 2 can be acknowledged. The acknowledgement is stored in a
list of events.
• The alarm relay can be freely assigned to the limit values and/or the sensor test.
• The alarm can be delayed between 0-180 seconds.
, ClO and O
2 2 3
2
with single
, ClO , O , NH , HCl
2 2 3 3
®
DIA-G sensor
15