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*

-382.0 to +986.0

-230.00*

-382.0 to +1256.0

-230.00*

-382.0 to +1616.0

-230.00*

-382.0 to +1254.2

-230.00*

-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

■ 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 Output + 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