Presys DMY-2011, Техническое руководство, Страница: 7 / 50

PRESYS
|
Instruments
DMY-2011, DMY-2035 and DMY-2036
Introduction
Page 5
1.3 - Specifications
Inputs:
•
Two inputs configurable for thermocouple (J, K, T, E, R, S, under ITS-90),
Pt-100 RTD under DIN 43760, 4 to 20mA, 0 to 55mVDC, 1 to 5VDC and
0 to 10VDC. Input impedance of 250
Ω
for mA, 10M
Ω
for 5VDC and 2M
Ω
above
5VDC. Table 1 shows the temperature ranges for thermocouples and RTD and
the resolution for linear input sensors.
Input Sensor Measuring Range Limits
Thermocouple lower limit
°
F
higher limit
°
F
lower limit
°
C
higher limit
°
C
Type J -184 1886.0 -120 1030.0
Type K -346 2498 -210 1370
Type T -418 752 -250 400
Type E -148.0 1436.0 -100.0 780.0
Type R -58 3200 -50 1760
Type S -58 3200 -50 1760
RTD
2 or 3-wire Pt-100 -346.0 1256.0 -210.0 680.0*
Linear
Range Resolution
Voltage 0 to 55mV
6
µ
V
0 to 5V
500
µ
V
0 to 10V 1mV
Current 0 to 20mA
2
µ
A
(*)including wire resistance
Table 1 - Measuring ranges for input sensors
Outputs:
•
4 to 20 mA, 1 to 5 Vdc, 0 to 10 Vdc Analog Retransmitter, with connection for
up to two optional modules galvanically isolated of 300Vac from power supply
and inputs.
•
SPDT relay for alarm rated for 3A at 220Vac, or 10A at 220Vac under order.
In this case alarm module is not connected, but soldered to the board.
Connection for up to four modules (using both analog output connectors). In
case of using one analog output, one can use three alarm modules, or
whenever one uses two analog outputs, it is possible to have up to two alarm
modules.
•
Logic signal, open collector transistor, 24 Vdc, 40 mA maximum with isolation.
•
Solid state relay rated for 2A at 250Vac with isolation.
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