ES-7702 Rev.8

M3SXT

Super-space-saving Signal Conditioners
M3S-UNIT Series

THERMOCOUPLE TRANSMITTER

(PC programmable)
Functions & Features
• Accepts a thermocouple input and provides an isolated, linearized DC signal
• Cold junction compensation, linearization and burnout protection
• PC programmable
• Universal AC/DC power input
• High-density mounting
• Power and status indicator LED

MODEL: M3SXT–[1][2]–[3][4]

ORDERING INFORMATION

• Code number: M3SXT-[1][2]-[3][4]
Specify a code from below for each of [1] through [4].
  (e.g. M3SXT-2Z1-R/Q)
• Temperature range (e.g. 0 – 1000°C)
• Output range (e.g. 4 – 20 mA DC)
• Specify the specification for option code /Q
  (e.g. /C01)

[1] INPUT THERMOCOUPLE

1: (PR)
2: K (CA)
3: E (CRC)
4: J (IC)
5: T (CC)
6: B (RH)
7: R
8: S
N: N
0: Specify (Please provide a emf table.)
(Configurator software is used to change the input type and precise range.)

[2] OUTPUT

Current
Z1: Range 0 – 20 mA DC
Voltage
V2: Range -10 – +10 V DC
V3: Range -5 – +5 V DC
(Configurator software is used to change output over the described range of the selected suffix code.
For changing between suffix codes, set the Output Range Selector on the side of unit before software adjustment.)

[3] POWER INPUT

AC Power
M2: 100 – 240 V AC (Operational voltage range 90 – 264 V,
47 – 66 Hz)
DC Power
R: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
Universal
AD: 100 – 240 V AC / 24 – 240 V DC (universal)
(Operational voltage range 90 - 264 V AC, 47 - 66 Hz /
 21.6 - 264 V DC, ripple 10 %p-p max.)

[4] OPTIONS

blank: none
/Q: With options (specify the specification)

SPECIFICATIONS OF OPTION: Q

COATING (For the detail, refer to our web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating

RELATED PRODUCTS

• PC configurator software (model: M3SCFG)
Downloadable at our web site.
A dedicated cable is required to connect the module to the PC.  Please refer to the internet software download site or the users manual for the PC configurator for applicable cable types.

GENERAL SPECIFICATIONS

Construction: Small-sized front terminal structure
Connection: Euro type connector terminal
Applicable wire size: 0.2 to 2.5 mm2, stripped length 8 mm
Housing material: Flame-resistant resin (gray)
Isolation: Input to output to power
Overrange output: -2 – +102 %
(Negative current output is not available.)
Zero adjustment: -2 to +2 % (PC programming)
Span adjustment: 98 to 102 % (PC programming)
Burnout: Upscale standard; downscale or no burnout optional by programming
Linearization: Standard
Cold Junction Compensation: CJC sensor incorporated
Power indicator LED: Green LED turns on when the power is supplied.
Status indicator LED: Orange LED; Blinking patterns indicate different operating status of the transmitter.
Programming: Downloaded from PC; input type and range, output type and range, zero and span, burnout type, user’s linearization table (max. 300 points, input emf specified within ±1000 mV), etc.
Refer to the instruction manual for details.
Configurator connection: 2.5 dia. miniature jack;
RS-232-C level

INPUT SPECIFICATIONS

Input resistance: 1 MΩ minimum
Burnout sensing: 0.1 μA
  Factory setting:
  1: PR 0 - 1600℃
  2: K 0 - 1000℃
  3: E 0 - 500℃
  4: J 0 - 500℃
  5: T 0 - 300℃
  6: B 500 - 1600℃
  7: R 500 - 1600℃
  8: S 0 - 1600℃
  N: N 0 - 1000℃

OUTPUT SPECIFICATIONS

■ DC Current
Output range: 0 – 20 mA DC
Conformance range: 0 – 20.4 mA DC
Minimum span: 1 mA
Offset: Lower range can be any specific value within the output range provided that the minimum span is maintained.
Load resistance: Output drive 11 V max.
(e.g. 4 – 20 mA: 550 Ω [11 V ÷ 20 mA])
If not specified, the output range is 4 – 20 mA DC.
■ DC Voltage
Code V2 (wide spans)
  Output range: -10 – +10 V DC
  Conformance range: -10.4 – +10.4 V DC
  Minimum span: 1 V
Code V3 (narrow spans)
  Output range: -5 – +5 V DC
  Conformance range: -5.2 – +5.2 V DC
  Minimum span: 0.5 V
Offset: Lower range can be any specific value within the output range provided that the minimum span is maintained.
Load resistance: Output drive 1 mA max.
 (e.g. 1 – 5 V: 5000 Ω [5 V ÷ 1 mA])
If not specified, the output range is shown below.
V2: 0 – 10 V DC
V3: 1 – 5 V DC

INSTALLATION

Power consumption
•AC:
 Approx. 2 VA at 100 V
 Approx. 3 VA at 200 V
 Approx. 4 VA at 264 V
•DC:
  R: Approx. 0.5 W
  AD: Approx. 1 W
Operating temperature: -10 to +55°C (14 to 131°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: DIN rail
Weight: 85 g (3.0 oz)

PERFORMANCE

Overall accuracy: Input accuracy + output accuracy
Input accuracy: Accuracy + Cold Junction Compensation Error 1°C (1.8°F)
Output accuracy: Max. Output Range / Span × ±0.04 %
Cold junction compensation error:
 ±1°C max. at 25 ±10°C
 ±1.8°F max. at 77 ±18°F
Temp. coefficient: ±0.015 %/°C (±0.008 %/°F) of max. span
Response time: ≤ 0.5 sec. (0 – 90 %)
Burnout response: ≤ 10 sec.
Line voltage effect: ±0.1 % over voltage range
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @1 minute  (input to output to power to ground)

CALCULATION EXAMPLES OF OVERALL ACCURACY

Input: K thermocouple, 0 – 1000°C, Output: 4 – 20 mA DC
Absolute value accuracy (Table 1): 0.25°C
CJC error (1°C) added: 1.25°C
➠ Input accuracy = 1.25°C ÷ 1000°C × 100 = 0.125 %
Output span: 16 mA (20 – 4)
➠ Output accuracy = 20 mA ÷ 16 mA × 0.04 = 0.05 %
➠ Overall accuracy including CJC error = 0.125 + 0.05 = ±0.18 % of span

STANDARDS & APPROVALS

EU conformity:
EMC Directive 
  EMI EN 61000-6-4
  EMS EN 61000-6-2
Low Voltage Directive
  EN 61010-1
  Installation Category II
  Pollution Degree 2
  Input or output to power: Reinforced insulation (300 V)
  Input to output: Basic insulation (300 V)
RoHS Directive

EXTERNAL VIEW

INPUT TYPE, RANGE & ACCURACY

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM