Spirax Sarco R1C, Инструкция по установке и обслуживанию, Страница: 9 / 12

9
IM-P087-33 MI Issue 6
Table 9 R1C test modes
(in test mode the green LED flashes every half a second):
SW1 SW2 Mode
1 1 2
Trap monitor mode - the R1C’s trap leaking steam detection period
filters turns off and the outputs show if there is steam or condensate
ON OFF OFF present in the trap. In this mode, the switches controlling the temperature
and conductivity thresholds still operate as described in the Tables
on pages 8 and 9.
ON OFF ON
BEMS /EMS set-up mode - the R1C will cyclically change it’s outputs,
one step every 8 seconds.
An analogue output is available from the R1C as standard for use with BEMS /EMS’s that
operate on an analogue input signal. Recommended BEMS /EMS setting details are given
below:
Table 10 BEMS / EMS recommended analogue settings
Trap status
Nominal output Recommended BEMS / EMS
current from R1C alarm threshold settings
Trap operating correctly 20 mA 23.0 mA > setpoint > 17.5 mA
Trap leaking steam 15 mA 17.5 mA > setpoint > 12.5 mA
Trap blocked or waterlogged 10 mA 12.5 mA > setpoint > 7.5 mA
Trap cold, but free of
4 mA 7.5 mA > setpoint > 0 mA
condensate (or R1C failure)
Two digital outputs are also available from the R1C as standard.
a. PNP open collector outputs
b. NPN open collector outputs
R1C digital outputs
Trap status
Waterlogged Leaking steam
Trap operating correctly ON ON
Trap leaking steam ON OFF
Trap blocked or waterlogged OFF ON
Trap cold, but free of condensate
(or R1C failure)
OFF OFF
5. BEMS/EMS commissioning