Lumel NA5 Series, Руководство пользователя, Страница: 50 / 64

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OUTPUTS:
– Analogue outputs galvanically isolated, with a resolution = 0,025% of the range
- current programmable: 0/4...20 mA load resistance £ 500 W
- or voltage programmable: 0...10 V load resistance ³ 500 W
- output response time 100 ms
- output error 0.2% of the range
- additional error due to ambient
temperature changes: ± (0.1% of the range/10K)
– Relay output
4 relays; voltageless make contacts - maximal load:
voltage 250 V a.c., 150 V d.c.,
current 5 A 30 V d.c., 250 V a.c.,
resistance load 1250 VA, 150 W.
Programmable alarm thresholds;
Three types of alarms;
Hysteresis defined by means of the lower and upper alarm threshold;
Signalling of alarm operation on the bargraph;
– 8 outputs of open collector (OC) type
voltageless, OC type with npn transistor (max. load 25 mA)
range of connected voltage: 5...30 V d.c.
– Digital output:
interface: RS-485,
transmission protocol: MODBUS,
ASCII: 8N1, 7E1, 7O1,
RTU: 8N2, 8E1, 8O1, 8N1,
baud rate: 2400, 4800, 9600 baud
maximal response time to the
request frame: 500 ms.
– Additional supply output 24 V d.c., maximal load 30 mA
Memory parameters:
- meter memory (recording) 750 samples
- min. record interval 1 sec;
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