Operating Instructions T411 / T412
JAQUET AG
Revision: 003
9/27
3.3.2 Relay
Type
Mono-stable change-over
Limit Hysteresis
Programmable
– 1 lower and 1 upper set point per limit.
Functions
2 programmable parameter sets selectable via binary input
•
Reaction to Alarm, Sensor fault, Limit, always on or off.
•
„Normal“ or „Inverse“ (normally powered off or on)
•
With or without ‘Hold function’ (Reset via Binary input)
Accuracy
0.05% of the value set
Temperature tolerance
Max.
10 ppm of the value set
Reaction time
Effective measurement time + 10.5ms
Contact rating
AC: max. 250VAC, 1250VA.
DC:
Contact isolation
1500 VAC
3.3.3 Open Collector Output
Type
Opto-coupler (passive)
Activation
Signal from the analogue sensor input (Sign.)
External Pull-up
So far: R = 143 x V (Ic nominal = 7 mA)
After batch 1608: R = 91 x V (Ic nominal = 11 mA)
Load voltage
V = 5
– 30 V
Max load current
25 mA
Isolation
1500 VAC
3.4 Data communication
3.4.1 Serial interface (RS 232)
Physical Layer
Similar to EIA RS 232 but with +5V CMOS Level
Max cable length
2 m
Transmission rate
2400 Baud
Connection
Front panel, 3.5mm jack plug
