MODEL: M2RT
(Usable range: -200 to +500°C, -328 to +932°F; min.span: 100°C, 180°F)
6: Ni 508.4 Ω
Super-mini Signal Conditioners Mini-M Series
(Usable range: -50 to +200°C, -58 to +392°F; min.span: 30°C, 54°F)
C: Cu (Refer to ‘Cu INPUT’.)
RTD TRANSMITTER
(photovoltaic system, instrument shelter)
0: Specify
Functions & Features
Note: Consult M-System for 2-wire RTD
• Accepts direct input from an RTD
• Linearization
[2] OUTPUT
• Burnout
Current
• “Active bridge” circuit containing two constant current
sources allows large leadwire resistances up to 200 Ω
• Fast response type available
A: 4 – 20 mA DC (Load resistance 750 Ω max.)
B: 2 – 10 mA DC (Load resistance 1500 Ω max.)
C: 1 – 5 mA DC (Load resistance 3000 Ω max.)
D: 0 – 20 mA DC (Load resistance 750 Ω max.)
E: 0 – 16 mA DC (Load resistance 900 Ω max.)
F: 0 – 10 mA DC (Load resistance 1500 Ω max.)
G: 0 – 1 mA DC (Load resistance 15 kΩ max.)
Voltage
Typical Applications
• Long distance transmission between the RTD and the
transmitter
23 (.91)
1: 0 – 10 mV DC (Load resistance 10 kΩ min.)
2: 0 – 100 mV DC (Load resistance 100 kΩ min.)
3: 0 – 1 V DC (Load resistance 1000 Ω min.)
4: 0 – 10 V DC (Load resistance 10 kΩ min.)
5: 0 – 5 V DC (Load resistance 5000 Ω min.)
6: 1 – 5 V DC (Load resistance 5000 Ω min.)
0: Specify voltage (See OUTPUT SPECIFICATIONS)
Model
76
(2.99)
ZERO
SPAN
124
(4.88)
mm (inch)
[3] POWER INPUT
AC Power
MODEL: M2RT–[1][2]–[3][4]
M2: 100 – 240 V AC (Operational voltage range 85 – 264 V,
47 – 66 Hz)
DC Power
ORDERING INFORMATION
• Code number: M2RT-[1][2]-[3][4]
Specify a code from below for each of [1] through [4].
(e.g. M2RT-4A-M2/BL/CE/Q)
R: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
R2: 11 – 27 V DC
(Operational voltage range 11 – 27 V, ripple 10 %p-p max.)
(Select ‘/N’ for ‘Standards & Approvals’ code.)
P: 110 V DC
• Temperature range (e.g. 0 – 500°C)
• Special output range (For codes Z & 0)
• Specify the specification for option code /Q
(e.g. /C01/S01)
(Operational voltage range 85 – 150 V, ripple 10 %p-p max.)
For the input code C, specify also the following. If not
specified, Cu 10Ω @25°C (usable range -200 – +260°C) will
be used.
[4] OPTIONS (multiple selections)
Response Time (0 – 90 %)
blank: Standard (≤ 0.5 sec.)
/K: Fast Response (Approx. 25 msec.)
Burnout
• Input type (e.g. Cu 10Ω)
• Resistance range (e.g. 9.038 – 12.891 Ω)
blank: Upscale burnout
[1] INPUT RTD (2- or 3-wire)
1: JPt 100 (JIS'89)
/BL: Downscale burnout
Standards & Approvals (must be specified)
/N: Without CE
(Usable range: -200 to +500°C, -328 to +932°F; min.span: 50°C, 90°F)
3: Pt 100 (JIS'89)
/CE: CE marking
(Usable range: -200 to +650°C, -328 to +1202°F; min.span: 50°C, 90°F)
4: Pt 100 (JIS'97, IEC)
Other Options
blank: none
(Usable range: -200 to +650°C, -328 to +1202°F; min.span: 50°C, 90°F)
5: Pt 50 Ω (JIS'81)
/Q: Option other than the above (specify the specification)
M2RT SPECIFICATIONS
ES-5129 Rev.4 Page 1/3
http://www.m-system.co.jp/