MODEL: 47DR
47DR SPECIFICATIONS
ES-9509 Rev.12 Page 3/12
http://www.m-system.co.jp/
Protected time duration: No limit
INPUT SPECIFICATIONS
■ RTD: 3-wire RTDs
Maximum leadwire resistance: 20 Ω per wire
Sensing current: 1mA (JPt 100, Pt 100), 2mA (Pt 50Ω),
0.1mA (Pt 1000)
Temperature Range
RTD
CONFORMANCE
USABLE RANGE
RANGE
JPt 100
(JIS ’89)
Pt 100
(JIS ’89)
Pt 100
(JIS ’97,IEC)
Pt 50Ω
(JIS ’81)
Pt 1000
-230.00*
1
to +530.00
-382.0 to +986.0
-230.00*
1
to +680.00
-382.0 to +1256.0
-230.00*
1
to +880.00
-382.0 to +1616.0
-230.00*
1
to +679.00
-382.0 to +1254.2
-230.00*
1
to +880.00
-382.0 to +1616.0
°C
°C
°C
°C
°C
-200.00 to +500.00
-200.00 to +650.00
-200.00 to +850.00
-200.00 to +850.00
-200.00 to +649.00
-328.0 to +932.0
°F
°F
°F
-328.0 to +1202.0
°F
-328.0 to +1200.2
-328.0 to +1562.0
°F
-328.0 to +1562.0
*
1. -200.00 when number of decimals display is set to two places
of decimals.
DC OUTPUT SIGNAL SPECIFICATIONS
TYPE ID
LOAD
RESISTANCE
OPERATIONAL
RANGE
OUTPUT
RANGE
2000Ω
minimum
-0.5
– +5.5V
0
– 5V
4000Ω
minimum
-6
– +6V
±5V
TYPE ID
LOAD
RESISTANCE
OPERATIONAL
RANGE
OUTPUT
RANGE
400Ω
maximum
-2
– +22mA
0
– 20mA
400Ω
maximum
2.4
– 21.6mA
4
– 20mA
8000Ω
minimum
-12
– +12V
±10V
VOLTAGE OUTPUT
CURRENT OUTPUT
I/O OPTIONS
■ Event Trigger Input: Dry contact or NPN open collector
Input current: ≤ 3 mA
Sensing: 6 V
Contact detecting: ≤ 1.5 V at ON; ≥ 3 V at OFF
Signal ID and Details
S_TMR: Startup Timer
Measuring starts in the predetermined time after
detecting the signal turning on.
TIMING: Timing
Used for various timing hold functions
ZERO: Forced Zero
Not used
HOLD: Hold data
Reading measured signal stops and the last value is held
when HOLD signal is turned on.
RESET: Reset data
The device is reset when RESET signal is
turned on.
■ Alarm Output: Relay contact
Rated load: 250 V AC @ 3 A (cos ø = 1)
30 V DC @ 3 A (resistive load)
Maximum switching voltage: 250 V AC, 30 V DC
Maximum switching power: 750 VA, 90 W (resistive load)
Minimum load: 5 V DC @ 10 mA
Mechanical life: ≥ 5 × 10
6
cycles (rate 180 cycles/min.)
■ Alarm Output: Photo MOSFET relay
Rated load: 120 V AC/DC @ 80 mA (resistive load)
ON resistance: 25 Ω
Permissible loss: 250 mW
■ Network Interface
Transmission: Half-duplex, asynchronous, no procedure
Interface: Conforms to TIA/EIA-485-A
Max. transmission distance: 500 meters
Baud rate: 1.2 – 38.4 kbps
Max. number of nodes: 31 (except the master)
Protocol: Modbus RTU
Parity: None, odd or even
Stop bit: 1 bit, 2 bits
Node address: 1 to 247
Media: Shielded twisted-pair cable (CPEV-S 0.9 dia.)
Terminating resistor: Built-in (Connect across T2 - T3, when
the unit is the end of the line)
■ BCD Control Signals
• Input Signals: Dry contact or NPN open collector
Input current: ≤ 3 mA
Sensing: 6 V
Contact detecting: ≤ 1.5 V at ON; ≥ 3 V at OFF
Signal ID and Details
REQ: Request BCD data
Valid data in approx. 30 msec. after detecting
the signal’s rising edge
MIN_REQ: Request Minimum reading data
Valid data in approx. 30 msec. after detecting
the signal’s rising edge
MAX_REQ: Request Maximum reading data
Valid data in approx. 30 msec. after detecting
the signal’s rising edge
HOLD: Hold data
Reading measured signal stops and the last value is
held when HOLD signal is turned on.
RESET: Reset data
All BCD data turn off when RESET signal is
turned on.
• Output Signals: NPN open collector
Max. load voltage: 24 V DC
Max. load current: 10 mA
Saturation voltage: ≤ 0.3 V DC
