SIREC D Display Recorder 7ND4000

General Description
1.5 OPTIONS
1.5.1 General. Additional functions and capabilities
can be added to the Display Recorder as
options. These options are briefly described in the
following paragraphs.
1.5.2 Digital Input and Output - This option
provides six form C (Normally Open, Common,
Normally Closed contacts) Relay outputs capable
of switching 250 VAC and three isolated digital
inputs. The relay outputs can be programmed to
respond to alarm events while the digital inputs can
be used to trigger events such as changing recording
speeds or stopping and starting recording.
Table 1-1 Specifications
OPERATING
1-4
Input Signals
1.5.3 Memory Modules (PCMCIA
Cards) - Several sizes of Memory Modules
(PCMCIA Cards) are available for your recorder.
The optional memory modules are available in
either static ram or flash ram configuration. The
Recorder supports both types of memory cards in
configurations of up to 20 Megabytes in size which
will allow up to 10,000,000 data samples.
1.5.4 Communications Interface -
Two communications options are available. An
ESD protected RS232 interface and an isolated
RS485 interface. The RS232 interface allows portable
computers to easily interface with the Recorder.
Communications speed is selectable from
300 to 19200 baud. Communication language is
Modbus RTU or Modbus ASCII.
1.5.5 Seismic Qualification - The Display
Recorder is available with an IEEE 344 Seismic
Qualification. A seismic qualification report
(IEEE 344) and all required seismic hardware are
furnished with this option.
1.6 SPECIFICATIONS
1.6.1 General. Recorder specifications are
shown in Table 1-1 as follows:
DC Voltage: Linear and square root . Full scale ranges: +100mV, +1V, and +10V DC
Current: 4 to 20mA, 10 to 50mA. Dry Contact or External Input (Serial)
Thermocouple: J, K, T, E, R, S, B, C, Nicrosil Nisil, and Nickel/Moly
RTD (Option): 10 ohm Cu, 100 ohm Pt 385, 100 ohm Pt 392, 200 ohm Pt 385, 200 ohm Pt
392, and 120 ohm Ni .
Input Accuracy Voltage: ±0.05% of programming range
Current: ±0.5% using internal shunts, +0.1% using external shunt Part No. MAS-50R0
Thermocouple: ±1.5°C for J, K, T, E, Nicrosil-Nisil, and Nickel/Nickel Moly; ±3°C for R, S,
and C; ±4°C for B. RTD: ±0.5°C
Input Resolution 0.006% of full scale
Input Impedance >10 megohms on 100mV, 1V Ranges, ~50k on 10 Volt Range
Input Capacity Standard: 6 or 12 direct
Common Mode Voltage 250 Vdc or peak Vac
Common Mode Noise Rejection >100 dB, 50/60 Hz
Normal Mode Noise Rejection >50 dB at 50/60 Hz
EMC Compliance Meets or exceeds the requirements of CE for EMC 89/336/EEC
Siemens AG C79000-G7374-C211-01
SIREC D Manual