MODEL: BTS

BTS SPECIFICATIONS

ES-3112 Rev.5 Page 1/3

http://www.m-system.co.jp/

Space-saving Two-wire Signal Conditioners B-UNIT

THERMOCOUPLE TRANSMITTER

(isolated)

Functions & Features

• Accepting direct input from a thermocouple and providing

a standard 4 – 20 mA DC signal

• Linearization

• Burnout protection

• High-accuracy cold junction compensation

• Monitor terminals

• High-density mounting

Typical Applications

• High-accuracy cold junction compensation benefits narrow

span measurements

• 0.1 μA burnout sensing enables long distance

transmission with minimum offset drifts

• Electric furnace (isolation)

26 (1.02)

93

(3.66)

mm (inch)

137

(5.39)

MODEL: BTS–[1][2]

ORDERING INFORMATION

• Code number: BTS-[1][2]

Specify a code from below for each of [1] and [2].

(e.g. BTS-2/BL/Q)

• Temperature range (e.g. 0 – 800°C)

• Specify the specification for option code /Q

(e.g. /C01/S01)

[1] INPUT THERMOCOUPLE

1: (PR) (Usable Range 0 to 1760°C, 32 to 3200°F)

2: K (CA) (Usable range -270 to +1370°C, -454 to +2498°F)

3: E (CRC) (Usable range -270 to +1000°C, -454 to +1832°F)

4: J (IC) (Usable range -210 to +1200°C, -346 to +2192°F)

5: T (CC) (Usable range -270 to +400°C, -454 to +752°F)

6: B (RH) (Usable range 0 to 1820°C, 32 to 3308°F)

7: R (Usable range -50 to +1760°C, -58 to +3200°F)

8: S (Usable range -50 to +1760°C, -58 to +3200°F)

0: Specify

[2] OPTIONS (multiple selections)

Burnout

blank: Upscale burnout

/BL: Downscale burnout

Other Options

blank: none

/Q: Option other than the above (specify the specification)

SPECIFICATIONS OF OPTION: Q (multiple selections)

COATING (For the detail, refer to M-System's web site.)

/C01: Silicone coating

/C02: Polyurethane coating

/C03: Rubber coating

TERMINAL SCREW MATERIAL

/S01: Stainless steel

GENERAL SPECIFICATIONS

Construction: Plug-in

Connection: M3.5 screw terminals (torque 0.8 N·m)

Screw terminal: Nickel-plated steel (standard) or stainless

steel

Housing material: Flame-resistant resin (black)

Isolation: Input to output

Zero adjustment: -1.5 to +10 % (front)

Span adjustment: 95 to 105 % (front)

Linearization: Standard

Cold junction compensation: CJC sensor attached to the

input terminals

INPUT SPECIFICATIONS

Minimum span: 3 mV

Offset: Max. 1.5 times span

Input resistance: 20 kΩ minimum

Burnout sensing: 0.1 μA

Minimum span (in °C)

(PR): 370°C

K (CA): 75°C

E (CRC): 50°C

J (IC): 60°C

T (CC): 75°C

B (RH): 780°C

R: 360°C

S: 380°C

Minimum span (in °F)

(PR): 670°F

K (CA): 140°F

E (CRC): 90°F

J (IC): 110°F

T (CC): 140°F